Patent Id | Score | Title | Patent Type | Publication Date | Priority Date | Family Id | Search Efficiency | Original Assignee | Current Assignee |
|---|---|---|---|---|---|---|---|---|---|
| US6999406B2 | 0.978 | Reception synchronization apparatus and demodulating apparatus using the same | GRANT | 2006-02-14 | 2000-12-08 | 18843762 | Great | Sony Corp | Sony Corp |
| EP0841761A2 | 0.823 | Communication method base station and terminal apparatus using time slots | GRANT | 1998-05-13 | 1996-11-08 | 17840101 | Great | Sony Corp | Sony Corp |
| US6088345A | 0.815 | Communication method base station and terminal apparatus | GRANT | 2000-07-11 | 1996-11-22 | 18027549 | Great | Sony Corp | Sony Corp |
| EP0715481B1 | 0.795 | BASE STATION MOBILE STATION AND RADIO COMMUNICATION SYSTEM | GRANT | 2003-02-26 | 1994-06-20 | 15199060 | Great | Sony Corp | Sony Corp |
| EP0851694A2 | 0.771 | Communication method base station and terminal apparatus | GRANT | 1998-07-01 | 1996-12-26 | 18399471 | Great | Sony Corp | Sony Corp |
| EP0841762A2 | 0.766 | Communication method in a multi-carrier format | GRANT | 1998-05-13 | 1996-11-08 | 17840115 | Great | Sony Corp | Sony Corp |
| EP0825742A2 | 0.765 | Method and apparatus for receiving and synchronising a multicarrier signal | GRANT | 1998-02-25 | 1996-08-23 | 16790136 | Great | Sony Corp | Sony Corp |
| US5369637A | 0.752 | Signal transmission system | GRANT | 1994-11-29 | 1991-04-03 | 26298673 | Great | US Philips Corp | US Philips Corp |
| EP0851620A2 | 0.751 | Communication method transmitting apparatus and receiving apparatus for simultaneously using first and second communication resources by variable allocation | GRANT | 1998-07-01 | 1996-12-26 | 18399485 | Great | Sony Corp | Sony Corp |
| EP1014639A2 | 0.743 | OFDM transmission/reception apparatus with selection of the optimal guard interval length | GRANT | 2000-06-28 | 1998-12-22 | 26415786 | Great | Panasonic Corp | Panasonic Corp |
| US7907573B2 | 0.737 | TSTD apparatus and method for a TDD CDMA mobile communication system | GRANT | 2011-03-15 | 2000-10-05 | 26638455 | Great | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US5959980A | 0.736 | Timing adjustment control for efficient time division duplex communication | GRANT | 1999-09-28 | 1995-06-05 | 23843283 | Great | Omnipoint Corp | Intel Corp |
| EP0901260A2 | 0.736 | Frame and symbol synchronisation in multicarrier receivers | GRANT | 1999-03-10 | 1997-05-12 | 14799318 | Great | Sony Corp | Sony Corp |
| EP0762701A2 | 0.732 | MCM system with a plurality of data streams each with its own transmission parameters | GRANT | 1997-03-12 | 1995-09-06 | 26409962 | Great | Advanced Digital Television Broadcasting Laboratory | Advanced Digital Television Broadcasting Laboratory |
| US6804211B1 | 0.717 | Frame structure for an adaptive modulation wireless communication system | GRANT | 2004-10-12 | 1999-08-03 | 23440931 | Great | WiLAN Inc | Quarterhill Inc |
| EP0915629B1 | 0.717 | Communication terminal device cellular radio communication system and information communication method | GRANT | 2011-02-02 | 1997-10-31 | 17895668 | Great | Sony Corp | Sony Corp |
| EP0734132A2 | 0.709 | Signal structure for multicarrier modulation which reduces the overhead requirement | GRANT | 1996-09-25 | 1995-03-23 | 13241746 | Great | Toshiba Corp | Toshiba Corp |
| US5781592A | 0.706 | Selective diversity system | GRANT | 1998-07-14 | 1993-09-28 | 17076247 | Great | Toshiba Corp | Toshiba Corp |
| US6081721A | 0.706 | Communication method base station and terminal apparatus | GRANT | 2000-06-27 | 1996-11-22 | 18027536 | Great | Sony Corp | Sony Corp |
| EP1041765A2 | 0.705 | Multiplexing methods for multicarrier signals in a meshed network | GRANT | 2000-10-04 | 1999-03-30 | 7902886 | Great | IAD Gesellschaft fuer Informatik Automatisierung und Datenverarbeitung mbH | IAD Gesellschaft fuer Informatik Automatisierung und Datenverarbeitung mbH |
| EP0825732A2 | 0.697 | Transmission method and apparatus in a cellular communication system | GRANT | 1998-02-25 | 1996-08-23 | 16790102 | Great | Sony Corp | Sony Corp |
| US6574283B1 | 0.697 | Communication method transmission and reception apparatuses and cellular radio communication system | GRANT | 2003-06-03 | 1997-08-19 | 16777745 | Great | Sony Corp | Sony Corp |
| US6330458B1 | 0.696 | Intelligent antenna sub-sector switching for time slotted systems | GRANT | 2001-12-11 | 1998-08-31 | 22508036 | Great | Nokia of America Corp | Nokia of America Corp, WSOU Investments LLC |
| EP0616445B1 | 0.693 | Duplex multicarrier digital radio communication system mobile station and base station for it | GRANT | 2000-05-31 | 1993-03-17 | 9445216 | Great | Telediffusion de France ets Public de Diffusion, France Telecom SA | Telediffusion de France ets Public de Diffusion, Orange SA |
| US6108353A | 0.689 | Demodulating apparatus | GRANT | 2000-08-22 | 1997-01-20 | 11679952 | Great | Sony Corp | Sony Corp |
| EP0810746A2 | 0.689 | Transmission apparatus using a multi-carrier signal with allocation of subcarriers | GRANT | 1997-12-03 | 1996-05-27 | 15081285 | Great | Sony Corp | Sony Corp |
| EP1128586A2 | 0.688 | Digital radio communication system and method with adaptive modulation | GRANT | 2001-08-29 | 2000-02-25 | 26586076 | Great | Panasonic Corp | Panasonic Corp |
| EP0825741A2 | 0.687 | Communication method and apparatus | GRANT | 1998-02-25 | 1996-08-23 | 16790085 | Great | Sony Corp | Sony Corp |
| US6490270B1 | 0.683 | Modulation method for transmitter | GRANT | 2002-12-03 | 1999-07-27 | 23422030 | Great | Nokia of America Corp | Nokia of America Corp, WSOU Investments LLC |
| EP1179902B1 | 0.683 | TRANSMITTER RECEIVER AND METHOD OF DATA TRANSMISSION | GRANT | 2008-07-23 | 2000-03-15 | 18591168 | Great | Panasonic Corp | Panasonic Corp |
| EP0825731A2 | 0.682 | Communication method and apparatus for multiple access at base stations | GRANT | 1998-02-25 | 1996-08-23 | 16790120 | Great | Sony Corp | Sony Corp |
| EP1014609B1 | 0.682 | MULTICARRIER COMMUNICATION METHOD TRANSMITTER AND RECEIVER | GRANT | 2004-09-22 | 1998-07-13 | 16376771 | Great | Sony Corp | Sony Corp |
| US6381229B1 | 0.676 | Random access in a mobile telecommunications system | GRANT | 2002-04-30 | 1998-05-15 | 22150549 | Great | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US5889767A | 0.676 | Time-division multidirectional multiplex communication system capable of using message area in radio burst signals divided into a plurality of areas | GRANT | 1999-03-30 | 1994-08-29 | 16482989 | Great | NEC Corp | NEC Corp |
| US6515960B1 | 0.675 | Radio communication system | GRANT | 2003-02-04 | 1997-08-27 | 16919485 | Great | Sony Corp | Sony Corp |
| US6353598B1 | 0.672 | Asymmetric multiple access protocol for a communication system | GRANT | 2002-03-05 | 1997-10-31 | 8229581 | Great | Nokia of America Corp | Provenance Asset Group LLC, Nokia USA Inc |
| EP0825728A2 | 0.671 | Communication method and apparatus with transmission power control | GRANT | 1998-02-25 | 1996-08-23 | 16790181 | Great | Sony Corp | Sony Corp |
| EP0810744A2 | 0.668 | Communication method and communication apparatus | GRANT | 1997-12-03 | 1996-05-27 | 15081309 | Great | Sony Corp | Sony Corp |
| EP0839423B1 | 0.666 | PULSE SHAPING FOR MULTICARRIER MODULATION | GRANT | 2004-10-20 | 1995-07-14 | 23998697 | Great | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| EP1130840A2 | 0.666 | Spread-spectrum multicarrier modulation for cellular communication | GRANT | 2001-09-05 | 2000-02-29 | 18575335 | Great | Toshiba Corp | Toshiba Corp |
| US6636500B2 | 0.662 | Medium allocation method | GRANT | 2003-10-21 | 1999-07-27 | 23424299 | Great | Nokia of America Corp | Nokia of America Corp |
| US4763322A | 0.662 | Digital radio transmission system with variable duration of the time slots in the time-division multiplex frame | GRANT | 1988-08-09 | 1985-07-31 | 6277202 | Great | US Philips Corp | US Philips Corp |
| EP0810753A2 | 0.662 | Multiple access transmitting and receiving system employing multiplexing of multicarrier signals | GRANT | 1997-12-03 | 1996-05-27 | 15081354 | Great | Sony Corp | Sony Corp |
| US6993084B1 | 0.661 | Coarse frequency synchronisation in multicarrier systems | GRANT | 2006-01-31 | 1998-04-14 | 8166938 | Great | Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV | Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV |
| EP1087546A1 | 0.660 | Method and system for radio communication | GRANT | 2001-03-28 | 1999-09-21 | 8241630 | Great | Sony Corp | Sony Corp |
| US9590834B2 | 0.655 | Radio communication apparatus capable of switching modulation schemes | GRANT | 2017-03-07 | 2000-10-20 | 27481723 | Great | Wi-Fi One LLC | Redwood Technologies LLC |
| US7203156B1 | 0.654 | Communication system base station apparatus communication terminal apparatus and communication method | GRANT | 2007-04-10 | 1998-02-26 | 26386055 | Great | Sony Corp | Sony Corp |
| US7006579B2 | 0.653 | ISI-robust slot formats for non-orthogonal-based space-time block codes | GRANT | 2006-02-28 | 2000-09-29 | 27241800 | Great | Nokia Oyj | Commworks Solutions LLC |
| US6414986B1 | 0.653 | Method and system for radio communication | GRANT | 2002-07-02 | 1998-08-24 | 17014584 | Great | Sony Corp | Redwood Technologies LLC |
| US7158493B1 | 0.652 | Radio communications system with a minimal broadcast channel | GRANT | 2007-01-02 | 2000-09-29 | 24711811 | Great | Arraycomm LLC | Apple Inc |
| US4513412A | 0.651 | Time division adaptive retransmission technique for portable radio telephones | GRANT | 1985-04-23 | 1983-04-25 | 23939571 | Great | AT&T Bell Laboratories Inc | Nokia Bell Labs, AT&T Corp |
| EP0938208A1 | 0.649 | Multicarrier transmission compatible with the existing GSM system | GRANT | 1999-08-25 | 1998-02-22 | 8231462 | Great | Sony International Europe GmbH | Sony Deutschland GmbH |
| US7133352B1 | 0.649 | Bi-directional communication channel | GRANT | 2006-11-07 | 1999-09-20 | 34102554 | Great | Zion Hadad Communications Ltd | Zion Hadad Communications Ltd |
| US4972506A | 0.647 | Method of transmitting data information in a mobile cellular radio communication system | GRANT | 1990-11-20 | 1988-03-15 | 20371694 | Great | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US5684794A | 0.645 | Validation of subscriber signals in a cellular radio network | GRANT | 1997-11-04 | 1996-01-25 | 24364741 | Great | Hazeltine Corp | ANTENNA PRODUCTS Inc |
| EP0660559B1 | 0.643 | Multicarrier frequency-hopping communication system | GRANT | 2005-04-27 | 1993-12-22 | 9454233 | Great | Koninklijke Philips Electronics NV | Laboratoires dElectronique Philips SAS, Koninklijke Philips NV |
| US7403570B2 | 0.641 | Preamble design for multiple input—multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) system | GRANT | 2008-07-22 | 2000-09-01 | 26923798 | Great | Nortel Networks Ltd | Apple Inc |
| US6882633B2 | 0.641 | Method and device for synchronizing a mobile radio receiver with a frame structure of a radio signal | GRANT | 2005-04-19 | 1999-04-16 | 7904864 | Great | Infineon Technologies AG | Intel Deutschland GmbH |
| US5177740A | 0.641 | Frame/slot synchronization for U.S. digital cellular TDMA radio telephone system | GRANT | 1993-01-05 | 1991-09-03 | 25033527 | Great | General Electric Co | L3 Technologies Inc |
| US6252910B1 | 0.640 | Bandwidth efficient QAM on a TDM-FDM system for wireless communications | GRANT | 2001-06-26 | 1998-11-11 | 26805352 | Great | ComSpace Corp | Benhov GmbH LLC |
| US5960336A | 0.639 | Data receiving apparatus | GRANT | 1999-09-28 | 1996-05-14 | 14757125 | Great | Panasonic Mobile Communications Co Ltd, NTT Mobile Communications Networks Inc | NTT Docomo Inc, Panasonic Mobile Communications Co Ltd |
| US7058006B2 | 0.636 | OFDM communication apparatus | GRANT | 2006-06-06 | 1999-07-29 | 16672735 | Great | Panasonic Corp | Panasonic Intellectual Property Corp of America |
| US7505420B2 | 0.634 | Guard section length detecting device and method for orthogonal frequency division multiplexing system receiver | GRANT | 2009-03-17 | 1997-09-30 | 19522036 | Great | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US7397804B2 | 0.633 | System and method for synchronizing data transmission from multiple wireless base transceiver stations to a subscriber unit | GRANT | 2008-07-08 | 2000-11-07 | 24844666 | Great | Intel Corp | Apple Inc |
| US6982992B1 | 0.631 | Multi-carrier signal transmitter and multi-carrier signal receiver | GRANT | 2006-01-03 | 1999-08-11 | 16866822 | Great | Sony Corp | Redwood Technologies LLC |
| US6944119B1 | 0.630 | OFDM receiving apparatus OFDM transmission apparatus and OFDM communication method | GRANT | 2005-09-13 | 1998-10-29 | 26520888 | Great | Panasonic Corp | Panasonic Intellectual Property Corp of America |
| EP1143678A2 | 0.630 | Synchronisation in a multicarrier broadcast receiver | GRANT | 2001-10-10 | 2000-04-07 | 18624199 | Great | Sony Corp | Sony Corp |
| US6661771B1 | 0.627 | Method and apparatus for interleaver synchronization in an orthogonal frequency division multiplexing (OFDM) communication system | GRANT | 2003-12-09 | 1999-09-17 | 29712265 | Great | Nokia of America Corp | LGS Innovations LLC |
| US5594720A | 0.623 | Multiple access cellular communication with dynamic slot allocation and reduced co-channel interferences | GRANT | 1997-01-14 | 1993-11-24 | 23435144 | Great | Nokia of America Corp | Nokia of America Corp |
| US7349371B2 | 0.623 | Selecting random access channels | GRANT | 2008-03-25 | 2000-09-29 | 31886587 | Great | Arraycomm LLC | Apple Inc |
| EP1164807A2 | 0.623 | Radio communication system radio base-station apparatus mobile radio-station apparatus radio-zone assignment method and radio communication method | GRANT | 2001-12-19 | 2000-06-14 | 18680337 | Great | Sony Corp | Sony Corp |
| US6456669B1 | 0.623 | Data communication method transmitter and cellular radio communication system | GRANT | 2002-09-24 | 1997-10-31 | 17895704 | Great | Sony Corp | Sony Corp |
| US7339926B2 | 0.621 | System and method for wireless communication in a frequency division duplexing region | GRANT | 2008-03-04 | 2000-09-14 | 22878567 | Great | Harington Valve LLC | Zarbana Digital Fund LLC |
| US5914932A | 0.620 | Communication method and receiving apparatus | GRANT | 1999-06-22 | 1996-12-26 | 18399493 | Great | Sony Corp | Sony Corp |
| US4852090A | 0.619 | TDMA communications system with adaptive equalization | GRANT | 1989-07-25 | 1987-02-02 | 26680073 | Great | Motorola Inc | Motorola Solutions Inc |
| EP0939527A1 | 0.619 | Mapping of multicarrier signals into GSM time slots | GRANT | 1999-09-01 | 1998-02-18 | 8231443 | Great | Sony International Europe GmbH | Sony Deutschland GmbH |
| EP1083719B1 | 0.619 | Multicarrier transmission with adaptive allocation of reference symbols | GRANT | 2006-01-11 | 1999-09-07 | 17241622 | Great | Sony Corp | Sony Corp |
| US6856590B2 | 0.618 | OFDM transmission device and OFDM transmission method | GRANT | 2005-02-15 | 2000-04-13 | 18628571 | Great | Sony Corp | Sony Corp |
| US5276686A | 0.616 | Mobile radio communication system having mobile base and portable devices as a mobile station | GRANT | 1994-01-04 | 1990-10-18 | 17586810 | Great | Toshiba Corp | Toshiba Corp |
| US7359457B2 | 0.615 | Transmission apparatus reception apparatus and digital radio communication method | GRANT | 2008-04-15 | 1999-07-28 | 16636662 | Great | Panasonic Corp | Redwood Technologies LLC |
| EP0682426A2 | 0.610 | OFDM transmitter and receiver | GRANT | 1995-11-15 | 1994-05-09 | 26457326 | Great | Victor Company of Japan Ltd | Victor Company of Japan Ltd |
| EP0610988A1 | 0.606 | Multi-user spread spectrum communication system | GRANT | 1994-08-17 | 1993-02-03 | 9443687 | Great | Laboratoires dElectronique Philips SAS, Koninklijke Philips Electronics NV | Laboratoires dElectronique Philips SAS, Koninklijke Philips NV |
| EP0998068B1 | 0.606 | OFDM (ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING) RECEIVER | GRANT | 2005-04-20 | 1998-02-20 | 12521708 | Great | Sony Corp | Sony Corp |
| US7664193B2 | 0.605 | Multiplexing of real time services and non-real time services for OFDM systems | GRANT | 2010-02-16 | 2000-03-22 | 35005179 | Great | Qualcomm Inc | Qualcomm Inc |
| US6061389A | 0.605 | Frequency-hopping communication system and communication station | GRANT | 2000-05-09 | 1993-03-05 | 26384852 | Great | Hitachi Ltd | Hitachi Ltd |
| US8111607B2 | 0.604 | Frequency division multiplexing system with selectable rate | GRANT | 2012-02-07 | 1998-01-06 | 8233277 | Great | Mosaid Technologies Inc | Mosaid Technologies Inc |
| EP1290845A2 | 0.604 | METHOD FOR SYNCHRONISING OFDM SYMBOLS DURING RADIO TRANSMISSIONS | GRANT | 2003-03-12 | 2000-05-26 | 7643785 | Great | Robert Bosch GmbH | Robert Bosch GmbH |
| EP1083720B1 | 0.604 | Multicarrier transmission | GRANT | 2019-03-06 | 1999-09-07 | 17241638 | Great | Wi-Fi One Technologies International Ltd | WI-FI ONE TECHNOLOGIES INTERNATIONAL LIMITED |
| US7075949B2 | 0.603 | OFDM receiving device and OFDM receiving method | GRANT | 2006-07-11 | 2000-04-13 | 18628572 | Great | Sony Corp | Sony Corp |
| EP0892509A2 | 0.600 | Communication method transmitter receiver and cellular radio communication system | GRANT | 1999-01-20 | 1997-07-16 | 16273140 | Great | Sony Corp | Sony Corp |
| US7177598B2 | 0.599 | Method and system for reducing channel interference in a frame-synchronized wireless communication system | GRANT | 2007-02-13 | 2000-11-15 | 27400154 | Great | WiLAN Inc | Quarterhill Inc |
| US5602835A | 0.599 | OFDM synchronization demodulation circuit | GRANT | 1997-02-11 | 1993-11-16 | 17712489 | Great | Toshiba Corp | Toshiba Corp |
| US20020037732A1 | 0.726 | Data communications synchronization using GPS receivers | APPLICATION | 2002-03-28 | 2000-04-14 | 27393692 | Good | VARITEK INDUSTRIES Inc | VARITEK INDUSTRIES Inc |
| US6516199B1 | 0.699 | Reducing interference in telecommunications systems | GRANT | 2003-02-04 | 1996-12-23 | 10804893 | Good | Telefonaktiebolaget LM Ericsson AB | Unwired Planet LLC |
| US5367524A | 0.650 | Method for sequential data transmission | GRANT | 1994-11-22 | 1991-08-05 | 24974472 | Good | Motorola Inc | Motorola Solutions Inc |
| US5781540A | 0.634 | Device and method for communicating in a mobile satellite system | GRANT | 1998-07-14 | 1995-06-30 | 23977446 | Good | Hughes Electronics Corp | JPMorgan Chase Bank NA, Hughes Network Systems LLC |
| EP1190513B1 | 0.599 | METHOD AND APPARATUS FOR DETERMINING TRANSMISSION MODE AND SYNCHRONIZATION FOR A DIGITAL AUDIO BROADCASTING SIGNAL | GRANT | 2006-12-27 | 1999-06-24 | 23328669 | Good | Ibiquity Digital Corp | Ibiquity Digital Corp |
| US7646702B2 | 0.598 | OFDM communication apparatus | GRANT | 2010-01-12 | 2000-11-17 | 18824767 | Good | Panasonic Corp | INVT SPE LLC |
| US6980509B1 | 0.597 | Transmitting device and method and providing medium | GRANT | 2005-12-27 | 1999-03-04 | 13056533 | Good | Sony Corp | Sony Corp |
| US5903614A | 0.596 | Communication method and receiving apparatus | GRANT | 1999-05-11 | 1996-12-26 | 18399478 | Good | Sony Corp | Sony Corp |
| US5636246A | 0.595 | Multicarrier transmission system | GRANT | 1997-06-03 | 1994-11-16 | 23334762 | Good | Aware Inc | TQ Delta LLC |
| US5657313A | 0.595 | Signal transmitting apparatus and signal receiving apparatus using orthogonal frequency division multiplexing | GRANT | 1997-08-12 | 1994-05-09 | 27459747 | Good | Victor Company of Japan Ltd | JVCKenwood Corp |
| US6125148A | 0.595 | Method for demodulating information in a communication system that supports multiple modulation schemes | GRANT | 2000-09-26 | 1997-08-29 | 25445336 | Good | Telefonaktiebolaget LM Ericsson AB | Cluster LLC, HPS Investment Partners LLC |
| WO2000064091A2 | 0.593 | METHOD AND SYSTEM TO SYNCHRONISE BASE STATIONS IN DIGITAL TELECOMMUNICATION NETWORKS | APPLICATION | 2000-10-26 | 1999-04-16 | 11382754 | Good | ||
| US6683864B1 | 0.593 | Transmission method and transmission apparatus | GRANT | 2004-01-27 | 1998-04-13 | 14302619 | Good | Sony Corp | Redwood Technologies LLC |
| US7319686B1 | 0.592 | Frame synchronization in multi-cell systems with a data interface | GRANT | 2008-01-15 | 1999-03-18 | 38921053 | Good | Industrial Technology Research Institute ITRI | Industrial Technology Research Institute ITRI |
| US6456627B1 | 0.590 | Method for communicating information in a communication system that supports multiple modulation schemes | GRANT | 2002-09-24 | 1997-08-29 | 25445337 | Good | Telefonaktiebolaget LM Ericsson AB | BlackBerry Ltd |
| EP1051818A1 | 0.589 | FREQUENCY SYNCHRONIZING DEVICE FOR OFDM/CDMA SYSTEM | GRANT | 2000-11-15 | 1998-12-01 | 19560741 | Good | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| EP1253733A1 | 0.587 | RADIO TRANSMITTING APPARATUS AND RADIO TRANSMITTING METHOD | GRANT | 2002-10-30 | 2000-11-01 | 18810365 | Good | Panasonic Corp | Panasonic Corp |
| US7079523B2 | 0.587 | Maintenance link using active/standby request channels | GRANT | 2006-07-18 | 2000-02-07 | 26876484 | Good | IPR Licensing Inc | Intel Corp |
| US6477385B1 | 0.586 | Mobile communication system and method for establishing synchronization in mobile communications | GRANT | 2002-11-05 | 1998-07-27 | 16825652 | Good | NEC Corp | NEC Corp |
| US7043259B1 | 0.585 | Repetitive paging from a wireless data base station having a smart antenna system | GRANT | 2006-05-09 | 2000-09-29 | 36272390 | Good | Arraycomm LLC | Intel Corp |
| EP0364190A2 | 0.585 | Diversity transmission and reception method and equipment | GRANT | 1990-04-18 | 1988-10-12 | 27317577 | Good | Sumitomo Electric Industries Ltd | Sumitomo Electric Industries Ltd |
| US8155096B1 | 0.583 | Antenna control system and method | GRANT | 2012-04-10 | 2000-12-01 | 45922136 | Good | IPR Licensing Inc | Apple Inc |
| US7170850B2 | 0.582 | Transmission apparatus and method and providing medium thereof | GRANT | 2007-01-30 | 2000-03-06 | 35513776 | Good | Sony Corp | Sony Corp |
| US7031295B2 | 0.582 | System and method for minimizing guard time in a time division duplex communication system | GRANT | 2006-04-18 | 1996-11-07 | 29999206 | Good | Harris Corp | Harris Corp |
| EP1063824A2 | 0.581 | Symbol synchronisation in multicarrier receivers | GRANT | 2000-12-27 | 1999-06-22 | 15988197 | Good | Panasonic Corp | Panasonic Corp |
| US5617411A | 0.580 | Method for digital data transmission in the zero symbol of COFDM modulation method | GRANT | 1997-04-01 | 1991-11-26 | 6445566 | Good | Daimler Benz AG | Continental Electronics Corp |
| EP1142172B1 | 0.580 | METHOD AND COMMUNICATIONS ASSEMBLY FOR TRANSFERRING INFORMATION BY USING A MULTI-CARRIER METHOD | GRANT | 2003-11-12 | 1998-12-15 | 7891145 | Good | Siemens AG | Siemens AG |
| EP1192745A1 | 0.580 | APPARATUS OF COMPENSATING FOR FREQUENCY OFFSET USING PILOT SYMBOL IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM | GRANT | 2002-04-03 | 1999-07-05 | 19599360 | Good | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| EP0689313A2 | 0.580 | AFC for OFDM using windowing | GRANT | 1995-12-27 | 1994-05-26 | 15220735 | Good | NEC Corp, Nippon Hoso Kyokai NHK, Japan Broadcasting Corp | NEC Corp, Japan Broadcasting Corp |
| US8085865B2 | 0.578 | Method and apparatus for providing high speed data communications in a cellular environment | GRANT | 2011-12-27 | 1996-10-29 | 24980247 | Good | Qualcomm Inc | Qualcomm Inc |
| US6611493B1 | 0.577 | Communication transmission and receiving method and apparatus using orthogonal frequency division multiplexing modulation system | GRANT | 2003-08-26 | 1998-01-27 | 26349918 | Good | Hitachi Denshi KK | Hitachi Denshi KK |
| US6795409B1 | 0.576 | Cooperative polling in a wireless data communication system having smart antenna processing | GRANT | 2004-09-21 | 2000-09-29 | 24718791 | Good | Arraycomm LLC | Intel Corp |
| US6982968B1 | 0.576 | Non-directional transmitting from a wireless data base station having a smart antenna system | GRANT | 2006-01-03 | 2000-09-29 | 35509099 | Good | Arraycomm LLC | Intel Corp |
| US5909469A | 0.575 | Link adaptation method for links using modulation schemes that have different symbol rates | GRANT | 1999-06-01 | 1997-08-29 | 25445271 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| EP1133841B1 | 0.573 | SYSTEM AND METHOD FOR COMPENSATING TIMING ERRORS USING PILOT SYMBOLS IN A OFDM/CDMA COMMUNICATION SYSTEM | GRANT | 2008-05-14 | 1999-09-29 | 36974549 | Good | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US7197022B2 | 0.570 | Framing for an adaptive modulation communication system | GRANT | 2007-03-27 | 2000-11-15 | 22941913 | Good | WiLAN Inc | Quarterhill Inc, Ford Motor Co |
| US6038450A | 0.570 | Soft handover system for a multiple sub-carrier communication system and method thereof | GRANT | 2000-03-14 | 1997-09-12 | 25456065 | Good | Nokia of America Corp | WSOU Investments LLC |
| EP1158709A1 | 0.568 | SIGNAL FORMAT IN MULTI-CARRIER CDMA TRANSMISSION SYSTEM | GRANT | 2001-11-28 | 2000-01-05 | 18529878 | Good | NTT Docomo Inc | NTT Docomo Inc |
| EP0822691A2 | 0.568 | Symbol synchronisation in a multicarrier receiver | GRANT | 1998-02-04 | 1996-07-31 | 16732452 | Good | Victor Company of Japan Ltd | Victor Company of Japan Ltd |
| US6963626B1 | 0.567 | Noise-reducing arrangement and method for signal processing | GRANT | 2005-11-08 | 1998-10-02 | 35207060 | Good | Leland Stanford Junior University | Leland Stanford Junior University |
| US5533028A | 0.565 | Communications subsystem between base stations and base station controllers in burst communications systems | GRANT | 1996-07-02 | 1993-06-25 | 8282354 | Good | Alcatel Lucent NV | Alcatel Lucent NV |
| US5652772A | 0.561 | Method and apparatus for synchronization in digital transmisison systems of the OFDM type | GRANT | 1997-07-29 | 1993-07-20 | 20390641 | Good | Telia AB | Intellectual Ventures I LLC |
| US6731689B2 | 0.561 | Training sequence for a radio communications system | GRANT | 2004-05-04 | 2000-11-30 | 24921179 | Good | Arraycomm LLC | Intel Corp |
| EP1207664A2 | 0.560 | Gain control in an OFDM receiver | GRANT | 2002-05-22 | 2000-11-16 | 26604073 | Good | Pioneer Corp | Pioneer Corp |
| EP0752779A2 | 0.560 | Distribution of phase of references in a multicarrier system | GRANT | 1997-01-08 | 1995-07-03 | 8543725 | Good | Nokia Mobile Phones Ltd, Nokia Networks Oy | Nokia Mobile Phones Ltd, Nokia Networks Oy, Nokia Oyj |
| US8175120B2 | 0.558 | Minimal maintenance link to support synchronization | GRANT | 2012-05-08 | 2000-02-07 | 22661046 | Good | IPR Licensing Inc | Apple Inc |
| US5995147A | 0.558 | Communication method transmission apparatus transmission method receiving apparatus and receiving method | GRANT | 1999-11-30 | 1996-08-23 | 16790151 | Good | Sony Corp | Sony Corp |
| WO1998059450A1 | 0.553 | SYNCHRONOUS COHERENT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM | APPLICATION | 1998-12-30 | 1997-06-20 | 25374088 | Good | ||
| EP1278323A1 | 0.551 | OFDM MODEM SYSTEM | GRANT | 2003-01-22 | 2000-09-07 | 18758392 | Good | Sony Corp | Sony Corp |
| US6888882B1 | 0.551 | Reducing collisions in a radio communications system | GRANT | 2005-05-03 | 2000-11-30 | 34523000 | Good | Arraycomm LLC | Intel Corp |
| US6304611B1 | 0.550 | OFDM modulator and OFDM modulation method for digital modulated wave having guard interval | GRANT | 2001-10-16 | 1997-06-19 | 15757278 | Good | Hitachi Denshi KK | Hitachi Denshi KK |
| EP0565470A1 | 0.549 | Method for transmission of digital radio-paging messages and radio-pager therefor | GRANT | 1993-10-13 | 1992-04-08 | 9428772 | Good | Telediffusion de France ets Public de Diffusion, France Telecom SA | Telediffusion de France ets Public de Diffusion, Orange SA |
| US5905718A | 0.549 | Communication system for multicasting delay-adjusted signals on same radio frequencies to adjoining cells | GRANT | 1999-05-18 | 1996-03-14 | 13067081 | Good | NEC Corp | NEC Corp |
| US6125124A | 0.548 | Synchronization and sampling frequency in an apparatus receiving OFDM modulated transmissions | GRANT | 2000-09-26 | 1996-09-16 | 8546662 | Good | Nokia Technology GmbH | WSOU Investments LLC |
| US6807146B1 | 0.547 | Protocols for scalable communication system using overland signals and multi-carrier frequency communication | GRANT | 2004-10-19 | 2000-04-21 | 24210357 | Good | Atheros Communications Inc | Qualcomm Inc |
| US6175550B1 | 0.543 | Orthogonal frequency division multiplexing system with dynamically scalable operating parameters and method thereof | GRANT | 2001-01-16 | 1997-04-01 | 25267540 | Good | Nokia of America Corp | Mosaid Technologies Inc |
| US20020039906A1 | 0.541 | Method of synchronising base stations | APPLICATION | 2002-04-04 | 2000-10-03 | 8855058 | Good | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US6160791A | 0.540 | Transmission system for the transmission of power control information in an OFDM system | GRANT | 2000-12-12 | 1997-08-29 | 8227295 | Good | Sony International Europe GmbH | Sony Deutschland GmbH |
| US5533004A | 0.538 | Method for providing and selecting amongst multiple data rates in a time division multiplexed system | GRANT | 1996-07-02 | 1994-11-07 | 23309720 | Good | Motorola Inc | Motorola Solutions Inc |
| US6314082B1 | 0.538 | Broadcast network selection techniques for radiocommunication systems | GRANT | 2001-11-06 | 1997-11-17 | 25513770 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US5802044A | 0.535 | Multicarrier reverse link timing synchronization system device and method | GRANT | 1998-09-01 | 1996-04-26 | 24562956 | Good | Motorola Inc | Google Technology Holdings LLC |
| US6169751B1 | 0.532 | OFDM receiving apparatus | GRANT | 2001-01-02 | 1997-03-10 | 12974080 | Good | Panasonic Corp | InterDigital Patent Holdings Inc |
| USRE43305E1 | 0.531 | Transmission system for OFDM-signals with optimized synchronization | GRANT | 2012-04-10 | 1997-09-04 | 8227316 | Good | Sony Deutschland GmbH | Redwood Technologies LLC |
| US20020172160A1 | 0.531 | Flexible two-way telecommunication system | APPLICATION | 2002-11-21 | 1997-05-08 | 10811952 | Good | ||
| US6016313A | 0.530 | System and method for broadband millimeter wave data communication | GRANT | 2000-01-18 | 1996-11-07 | 24976051 | Good | Wavtrace Inc | Comerica Bank Canada, BWA Technology Inc |
| US6807165B2 | 0.529 | Time division protocol for an ad-hoc peer-to-peer radio network having coordinating channel access to shared parallel data channels with separate reservation channel | GRANT | 2004-10-19 | 2000-11-08 | 26938255 | Good | MeshNetworks Inc | Arris Enterprises LLC |
| US5768260A | 0.528 | Device for changing the transmission parameters in a radio transmitter | GRANT | 1998-06-16 | 1993-06-02 | 26661753 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| EP0786890A2 | 0.528 | Resource allocation in a multi-user multicarrier mobile radio system | GRANT | 1997-07-30 | 1996-01-29 | 11819675 | Good | Sony Corp | Sony Corp |
| US6563896B1 | 0.527 | Digital broadcast receiver and receiving method | GRANT | 2003-05-13 | 1998-08-04 | 16753851 | Good | Sony Corp | Sony Corp |
| US5574983A | 0.527 | Base station device and mobile station device in mobile communication system utilizing the site diversity effect in soft handover state | GRANT | 1996-11-12 | 1993-09-29 | 17093476 | Good | NTT Mobile Communications Networks Inc | NTT Docomo Inc |
| USRE40568E1 | 0.526 | Synchronization symbol structure using OFDM based transmission method | GRANT | 2008-11-11 | 1999-01-08 | 26152852 | Good | Sony Corp | Redwood Technologies LLC |
| US4763325A | 0.526 | Demand assigned reformatting with an overflow area for time division multiple access communication | GRANT | 1988-08-09 | 1985-09-04 | 25095402 | Good | Comsat Telesystems Inc | Comsat Corp |
| US5533024A | 0.525 | Radio channel selection method and system | GRANT | 1996-07-02 | 1994-03-08 | 13193334 | Good | NEC Corp | NEC Corp |
| EP0729250A2 | 0.525 | OFDM transmission/reception system and transmitting/receiving apparatus | GRANT | 1996-08-28 | 1995-02-24 | 12486735 | Good | Toshiba Corp | Toshiba Corp |
| US20090092037A1 | 0.525 | Wireless Interactive System and Method | APPLICATION | 2009-04-09 | 1999-09-20 | 24501198 | Good | ||
| US4912706A | 0.524 | Frame synchronization in a network of time multiplexed optical space switches | GRANT | 1990-03-27 | 1988-11-18 | 23053861 | Good | American Telephone and Telegraph Co Inc, AT&T Bell Laboratories Inc | Nokia Bell Labs, AT&T Corp |
| EP0553841A2 | 0.524 | Method and apparatus for digital signal transmission using orthogonal frequency division multiplexing | GRANT | 1993-08-04 | 1992-01-31 | 11933645 | Good | Nippon Hoso Kyokai NHK, Japan Broadcasting Corp | Japan Broadcasting Corp |
| US6223040B1 | 0.523 | Method and a system in a cellular network | GRANT | 2001-04-24 | 1997-06-24 | 20407485 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US6298054B1 | 0.521 | Method and apparatus in a wireless messaging unit for acquiring transmitter or receiver synchronization | GRANT | 2001-10-02 | 1998-09-30 | 22591332 | Good | Motorola Inc | Google Technology Holdings LLC |
| EP1139577A2 | 0.521 | Modem interface | GRANT | 2001-10-04 | 2000-03-27 | 26887863 | Good | InterDigital Technology Corp | InterDigital Technology Corp |
| US6359923B1 | 0.521 | Highly bandwidth efficient communications | GRANT | 2002-03-19 | 1997-12-18 | 25539854 | Good | AT&T Wireless Services Inc | AT&T Mobility II LLC, AT&T Wireless Services Inc |
| US6684366B1 | 0.520 | Multi-rate codec with puncture control | GRANT | 2004-01-27 | 2000-09-29 | 30116250 | Good | Arraycomm LLC | Intel Corp |
| EP1330904A2 | 0.520 | CLOCK SYNCHRONIZATION FREQUENCY SYNCHRONIZATION CHANNEL SOUNDER AND EQUALIZER FOR OFDM USING PILOTS EQUIDISTANT IN THE FREQUENCY DOMAIN | GRANT | 2003-07-30 | 2000-01-28 | 23961192 | Good | Zion Hadad Communications Ltd | Zion Hadad Communications Ltd |
| US6400734B1 | 0.519 | Method and architecture for TDMA receiver incorporating a unique word correlation control loop | GRANT | 2002-06-04 | 1998-12-07 | 22766687 | Good | National Semiconductor Corp | National Semiconductor Corp |
| US4357700A | 0.518 | Adaptive error encoding in multiple access systems | GRANT | 1982-11-02 | 1978-08-10 | 25462534 | Good | International Business Machines Corp | International Business Machines Corp |
| US6625113B1 | 0.517 | Digital signal frame and interleaver synchronizer | GRANT | 2003-09-23 | 1999-08-30 | 28042109 | Good | Agere Systems LLC | Avago Technologies International Sales Pte Ltd, Nokia of America Corp |
| US20020159506A1 | 0.517 | Vertical adaptive antenna array for a discrete multitone spread spectrum communications system | APPLICATION | 2002-10-31 | 1997-02-24 | 27494753 | Good | AT&T Mobility II LLC | AT&T Mobility II LLC |
| US5956642A | 0.516 | Adaptive channel allocation method and apparatus for multi-slot multi-carrier communication system | GRANT | 1999-09-21 | 1996-11-25 | 25041440 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US4899367A | 0.513 | Multi-level quadrature amplitude modulator system with fading compensation means | GRANT | 1990-02-06 | 1988-02-02 | 12048421 | Good | Communication Research Laboratory | National Institute of Information and Communications Technology |
| EP0562868A2 | 0.511 | Method and apparatus for multiple access between transceivers in wireless communication using OFDM spread spectrum | GRANT | 1993-09-29 | 1992-03-27 | 25675066 | Good | WiLAN Inc | Quarterhill Inc |
| US20030195017A1 | 0.511 | Wireless communication system with base station beam sweeping | APPLICATION | 2003-10-16 | 1999-09-30 | 23622598 | Good | ||
| US6975585B1 | 0.511 | Slotted synchronous frequency division multiplexing for multi-drop networks | GRANT | 2005-12-13 | 2000-07-27 | 24510363 | Good | Conexant Systems LLC | Synaptics Inc, Conexant Systems LLC |
| EP1617613B1 | 0.510 | OFDM communication devices using pseudo random modulated reference symbols | GRANT | 2007-09-19 | 1995-01-10 | 26335363 | Good | Panasonic Corp | Panasonic Corp |
| US6332086B2 | 0.510 | Discontinuous receive operation in a wireless terminal | GRANT | 2001-12-18 | 1997-04-07 | 25269254 | Good | Hughes Electronics Corp | DirecTV Group Inc |
| US5933421A | 0.510 | Method for frequency division duplex communications | GRANT | 1999-08-03 | 1997-02-06 | 25168559 | Good | AT&T Wireless Services Inc | AT&T Mobility II LLC, AT&T Wireless Services Inc |
| US5828695A | 0.510 | QAM system in which the constellation is modified in accordance with channel quality | GRANT | 1998-10-27 | 1991-06-03 | 26298993 | Good | British Telecommunications PLC | BlackBerry Ltd |
| EP1193933B1 | 0.509 | Symbol-timing synchronization in multicarrier receivers | GRANT | 2008-08-06 | 2000-09-29 | 24712618 | Good | Symbol Technologies LLC | Symbol Technologies LLC |
| US6891822B1 | 0.509 | Method and apparatus for transferring isocronous data within a wireless computer network | GRANT | 2005-05-10 | 2000-09-08 | 24638175 | Good | Sharewave Inc | Cirrus Logic Inc |
| US5619507A | 0.506 | Method and apparatus for establishing and maintaining frame synchronization in a satellite communication system | GRANT | 1997-04-08 | 1993-06-30 | 16361430 | Good | NEC Corp | NEC Corp |
| US5263052A | 0.504 | Viterbi equalizer for radio receiver | GRANT | 1993-11-16 | 1991-09-30 | 25081098 | Good | Motorola Inc | Motorola Solutions Inc |
| US20110194591A1 | 0.504 | APPARATUS FOR TRANSMITTING A SIGNAL INCLUDING TRANSMIT DATA TO A MULTIPLE-INPUT CAPABLE NODE | APPLICATION | 2011-08-11 | 2000-06-13 | 39774550 | Good | CPU Consultants Inc | Comcast Cable Communications LLC |
| US4891806A | 0.503 | Constellation multiplexed inband secondary channel for voiceband modem | GRANT | 1990-01-02 | 1987-09-18 | 22269787 | Good | Racal Data Communications Inc | Racal Data Communications Inc |
| US6700875B1 | 0.503 | System device and method for selecting a channel in a multichannel communication network | GRANT | 2004-03-02 | 1998-03-31 | 21976205 | Good | Motorola Inc | Motorola Mobility LLC, Arris Enterprises LLC |
| US5117423A | 0.503 | DATA TRANSMISSION OVER A TIME DIVISION DUPLEX CHANNEL | GRANT | 1992-05-26 | 1989-05-26 | 10657427 | Good | US Philips Corp | Koninklijke Philips NV, US Philips Corp |
| US5903554A | 0.502 | Method and apparatus for measuring link quality in a spread spectrum communication system | GRANT | 1999-05-11 | 1996-09-27 | 24903280 | Good | Qualcomm Inc | Qualcomm Inc |
| US4918437A | 0.501 | High data rate simulcast communication system | GRANT | 1990-04-17 | 1988-10-13 | 22978274 | Good | Motorola Inc | Motorola Solutions Inc |
| US7359454B2 | 0.501 | Apparatus and method for digital wireless communications | GRANT | 2008-04-15 | 1999-01-19 | 26345354 | Good | Panasonic Corp | Tianma Microelectronics Co Ltd |
| US7233630B2 | 0.500 | Modulation method and radio communication system | GRANT | 2007-06-19 | 1998-01-30 | 26355289 | Good | Panasonic Corp | Redwood Technologies LLC |
| US6377636B1 | 0.500 | Method and wireless communications system using coordinated transmission and training for interference mitigation | GRANT | 2002-04-23 | 1999-11-02 | 23715560 | Good | Iospan Wireless Inc | Intel Corp, Gigabit Wireless Inc |
| US6542821B2 | 0.500 | GPS receiver and method for processing GPS signals | GRANT | 2003-04-01 | 1995-10-09 | 24846249 | Good | SnapTrack Inc | SnapTrack Inc |
| US5282222A | 0.500 | Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum | GRANT | 1994-01-25 | 1992-03-31 | 25336586 | Good | Quarterhill Inc | Quarterhill Inc |
| US7542729B2 | 0.496 | Communication system | GRANT | 2009-06-02 | 1992-03-26 | 27565104 | Good | Panasonic Corp | Panasonic Corp |
| EP0559074A1 | 0.496 | Position locating transceiver | GRANT | 1993-09-08 | 1992-03-04 | 25296381 | Good | Motorola Inc | Motorola Solutions Inc |
| US6047189A | 0.495 | Adaptive method for channel assignment in a cellular communication system | GRANT | 2000-04-04 | 1996-10-11 | 24930801 | Good | Arraycomm LLC | Intel Corp |
| US5724666A | 0.493 | Polarization diversity phased array cellular base station and associated methods | GRANT | 1998-03-03 | 1994-03-24 | 23743357 | Good | Ericsson Inc | Unwired Planet LLC |
| US6922388B1 | 0.493 | Signal construction detection and estimation for uplink timing synchronization and access control in a multi-access wireless communication system | GRANT | 2005-07-26 | 2000-02-11 | 24000524 | Good | Nokia of America Corp | GEMATLO SA, Alcatel Lucent SAS, Thales DIS France SA |
| US6747966B1 | 0.492 | Radio system and methods for duplex operation | GRANT | 2004-06-08 | 1996-12-31 | 8547388 | Good | Nokia Networks Oy | Nokia Oyj, Google Technology Holdings LLC |
| US20040001561A1 | 0.491 | Method and system for the transmission reception and processing of 4-level and 8-level signaling symbols | APPLICATION | 2004-01-01 | 1998-12-29 | 22832980 | Good | ||
| US6977913B1 | 0.491 | Radio communication device for radio packet communication system | GRANT | 2005-12-20 | 1998-07-21 | 16510959 | Good | NEC Corp | NEC Corp |
| US5970400A | 0.491 | Adjusting the timing and synchronization of a radio's oscillator with a signal from an SATPS satellite | GRANT | 1999-10-19 | 1996-04-30 | 24585769 | Good | Magellan Corp | Mitac International Corp |
| US5991289A | 0.490 | Synchronization method and apparatus for guard interval-based OFDM signals | GRANT | 1999-11-23 | 1997-08-05 | 25422429 | Good | Industrial Technology Research Institute ITRI | Industrial Technology Research Institute ITRI |
| US5812547A | 0.489 | System and method for dynamic time division access | GRANT | 1998-09-22 | 1996-08-22 | 24816978 | Good | AT&T Corp | AT&T Corp |
| US5608764A | 0.489 | OFDM synchronization demodulation circuit | GRANT | 1997-03-04 | 1993-11-12 | 17667385 | Good | Toshiba Corp | Toshiba Corp |
| US7158577B1 | 0.489 | Communication system | GRANT | 2007-01-02 | 1992-03-26 | 37592351 | Good | Panasonic Corp | Panasonic Corp |
| US7016425B1 | 0.488 | Quasi-differential modulation/demodulation method for multi-amplitude digital modulated signals and OFDM system | GRANT | 2006-03-21 | 1999-01-15 | 8237356 | Good | Sony International Europe GmbH | Sony Deutschland GmbH |
| US6381251B1 | 0.488 | Data transmission apparatus and receiving apparatus using orthogonal frequency division multiplex modulation system | GRANT | 2002-04-30 | 1997-06-12 | 15609387 | Good | Hitachi Denshi KK | Hitachi Denshi KK |
| US6112100A | 0.487 | Method and apparatus for synchronizing a base station in a communication system | GRANT | 2000-08-29 | 1998-01-23 | 21755318 | Good | Motorola Inc | Google Technology Holdings LLC |
| EP0843431A2 | 0.485 | Discriminating apparatus for digital audio broadcasting | GRANT | 1998-05-20 | 1996-11-13 | 17904523 | Good | Sony Corp | Sony Corp |
| US6898256B2 | 0.485 | Synchronization method and apparatus | GRANT | 2005-05-24 | 2000-12-04 | 11736763 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US5950124A | 0.484 | Cellular communication system with dynamically modified data transmission parameters | GRANT | 1999-09-07 | 1995-09-06 | 24263162 | Good | Telxon Corp | Telxon Corp, Cisco Technology Inc |
| WO1996002991A1 | 0.484 | FRAME SYNCHRONIZATION IN MULTICARRIER TRANSMISSION SYSTEMS | APPLICATION | 1996-02-01 | 1994-07-15 | 23052168 | Good | ||
| US6735258B1 | 0.483 | Moderate rate phase shift keying codec | GRANT | 2004-05-11 | 2000-09-29 | 32230661 | Good | Arraycomm LLC | Intel Corp |
| US6128276A | 0.483 | Stacked-carrier discrete multiple tone communication technology and combinations with code nulling interference cancellation retrodirective communication and adaptive antenna arrays | GRANT | 2000-10-03 | 1997-02-24 | 25190170 | Good | Radix Wireless Inc | DirecTV Group Inc, Radix Wireless Inc |
| US5841396A | 0.482 | GPS receiver utilizing a communication link | GRANT | 1998-11-24 | 1996-03-08 | 27086799 | Good | SnapTrack Inc | SnapTrack Inc, Precision Tracking Inc |
| US7106689B1 | 0.482 | OFDM transmission/reception apparatus | GRANT | 2006-09-12 | 1999-03-02 | 26395471 | Good | Panasonic Corp | Godo Kaisha IP Bridge 1 |
| US6628730B1 | 0.481 | Demodulating digital video broadcast signals | GRANT | 2003-09-30 | 1997-05-02 | 27451637 | Good | LSI Logic Corp | Avago Technologies International Sales Pte Ltd |
| US5212684A | 0.480 | PROTOCOL AND TRANSCEIVER FOR CORDLESS/CELLULAR TELEPHONE SERVICE | GRANT | 1993-05-18 | 1989-09-01 | 10662406 | Good | US Philips Corp | IPG Electronics 503 Ltd |
| US6111863A | 0.480 | Method and apparatus for the dynamic allocation of signal bandwidth between audio video and data signals | GRANT | 2000-08-29 | 1995-12-29 | 24321659 | Good | LSI Logic Corp | Avago Technologies International Sales Pte Ltd |
| US6434119B1 | 0.480 | Initializing communications in systems using multi-carrier modulation | GRANT | 2002-08-13 | 1998-03-19 | 26760663 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US4881245A | 0.480 | Improved signalling method and apparatus | GRANT | 1989-11-14 | 1983-07-01 | 26706933 | Good | Harris Corp | Harris Corp |
| US6037898A | 0.478 | Method and apparatus for calibrating radio frequency base stations using antenna arrays | GRANT | 2000-03-14 | 1997-10-10 | 26794521 | Good | Arraycomm LLC | Intel Corp |
| US4581736A | 0.478 | Multiple downlink data aggregator and system | GRANT | 1986-04-08 | 1983-03-01 | 23871350 | Good | Comsat Corp | Comsat Corp |
| US4495619A | 0.478 | Transmitter and receivers using resource sharing and coding for increased capacity | GRANT | 1985-01-22 | 1981-10-23 | 23219617 | Good | AT&T Bell Laboratories Inc | Nokia Bell Labs |
| US5892879A | 0.477 | Communication system for plural data streams | GRANT | 1999-04-06 | 1992-03-26 | 27523984 | Good | Panasonic Corp | Panasonic Corp |
| US7095708B1 | 0.477 | Methods and apparatus for use in communicating voice and high speed data in a wireless communication system | GRANT | 2006-08-22 | 1999-06-23 | 26838374 | Good | Cingular Wireless II LLC | AT&T Mobility II LLC, AT&T Wireless Services Inc |
| US6119016A | 0.475 | Synchronizing base stations in a wireless telecommunications system | GRANT | 2000-09-12 | 1998-06-10 | 22250439 | Good | Nokia of America Corp | Nokia of America Corp, Provenance Asset Group LLC, Nokia USA Inc |
| US6366786B1 | 0.475 | Radio with synchronization apparatus and method therefore | GRANT | 2002-04-02 | 1998-04-24 | 8231814 | Good | Motorola Inc | North Star Innovations Inc |
| US6804223B2 | 0.475 | Reverse link pilot integrated with block codes | GRANT | 2004-10-12 | 2000-11-30 | 24927407 | Good | IPR Licensing Inc | IPR Licensing Inc |
| US5600672A | 0.474 | Communication system | GRANT | 1997-02-04 | 1991-03-27 | 46249983 | Good | Panasonic Corp | Panasonic Corp |
| US4462105A | 0.474 | Transceiver unit for a telecommunication system | GRANT | 1984-07-24 | 1981-03-31 | 26940014 | Good | Siemens Corp | Siemens Corp |
| US5416801A | 0.473 | Digital signal transmission system based on partitioning of a coded modulation with concatenated codings | GRANT | 1995-05-16 | 1992-07-08 | 9431694 | Good | US Philips Corp | US Philips Corp |
| US7177320B2 | 0.473 | Transfer of data in a telecommunications system | GRANT | 2007-02-13 | 2000-09-27 | 9900243 | Good | Airspan Networks Inc | Quarterhill Inc |
| US20040100897A1 | 0.472 | Carrier interferometry coding with aplications to cellular and local area networks | APPLICATION | 2004-05-27 | 1998-02-12 | 32328506 | Good | Department 13 Inc | Department 13 Inc |
| US5926510A | 0.472 | Transmitter apparatus receiver apparatus transmitting method and receiving method for interleaving and varying an antenna directional pattern | GRANT | 1999-07-20 | 1996-01-29 | 12444062 | Good | Sony Corp | Sony Corp |
| EP1089472A1 | 0.471 | Time-alignment apparatus and method for providing data frames of a plurality of channels with predetermined time-offsets | GRANT | 2001-04-04 | 1999-09-28 | 8239064 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| EP0760564A2 | 0.471 | Random access in multicarrier systems | GRANT | 1997-03-05 | 1995-08-28 | 20399295 | Good | Telia AB | Telia AB |
| US6771670B1 | 0.467 | Time-alignment apparatus and method for time-aligning data frames of a plurality of channels in a telecommunication system | GRANT | 2004-08-03 | 1999-09-28 | 8239067 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US5444697A | 0.466 | Method and apparatus for frame synchronization in mobile OFDM data communication | GRANT | 1995-08-22 | 1993-08-11 | 22301134 | Good | University of British Columbia | University of British Columbia |
| US6721569B1 | 0.466 | Dynamic sub-carrier assignment in OFDM systems | GRANT | 2004-04-13 | 2000-09-29 | 32043640 | Good | Nortel Networks Ltd | BlackBerry Ltd |
| US6937665B1 | 0.466 | Method and apparatus for multi-user transmission | GRANT | 2005-08-30 | 1999-04-19 | 34864177 | Good | Interuniversitair Microelektronica Centrum vzw IMEC | RPX Corp |
| US5874914A | 0.464 | GPS receiver utilizing a communication link | GRANT | 1999-02-23 | 1995-10-09 | 33434290 | Good | SnapTrack Inc | SnapTrack Inc |
| US5228025A | 0.464 | METHOD FOR THE BROADCASTING OF DIGITAL DATA NOTABLY FOR RADIO BROADCASTING AT A HIGH BIT-RATE TOWARDS MOBILE RECEIVERS WITH TIME-FREQUENCY INTERLACING AND ASSISTANCE IN THE ACQUISITION OF AUTOMATIC FREQUENCY CONTROL AND CORRESPONDING RECEIVER | GRANT | 1993-07-13 | 1990-02-06 | 9393518 | Good | Telediffusion de France ets Public de Diffusion, Centre National dEtudes des Telecommunications CNET | ETAT FRANCAIS MINISTERE DES PTT (CENTRE NATIONAL D'ETUDES DES TELECOMMUNICATIONS), Telediffusion de France ets Public de Diffusion, France Telecom R&D SA |
| US5289459A | 0.463 | Duplex data transmission | GRANT | 1994-02-22 | 1986-12-01 | 25671686 | Good | British Telecommunications PLC | British Telecommunications PLC |
| US6028845A | 0.463 | Communication-line-quality measuring system using a conventional signal frame structure | GRANT | 2000-02-22 | 1996-02-21 | 12381492 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US5802241A | 0.463 | Communication system | GRANT | 1998-09-01 | 1992-03-26 | 45419284 | Good | Panasonic Corp | Panasonic Corp |
| US5953311A | 0.463 | Timing synchronization in a receiver employing orthogonal frequency division multiplexing | GRANT | 1999-09-14 | 1997-02-18 | 25183404 | Good | Discovision Associates | Chartoleaux KG LLC |
| US6496982B1 | 0.462 | Device and method relating to cable TV networks | GRANT | 2002-12-17 | 1996-02-19 | 20401441 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US6731595B2 | 0.462 | Multi-carrier modulation and demodulation system using a half-symbolized symbol | GRANT | 2004-05-04 | 2000-09-28 | 18779457 | Good | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US6795407B2 | 0.462 | Methods for controlling shared access to wireless transmission systems and increasing throughput of the same | GRANT | 2004-09-21 | 2000-04-22 | 22735996 | Good | Atheros Communications Inc | Qualcomm Inc |
| US5963592A | 0.462 | Adaptive channel equalizer for use in digital communication system utilizing OFDM method | GRANT | 1999-10-05 | 1996-12-28 | 19491932 | Good | Daewoo Electronics Co Ltd | WiniaDaewoo Co Ltd |
| US5150384A | 0.461 | CARRIER RECOVERY METHOD AND APPARATUS HAVING AN ADJUSTABLE RESPONSE TIME DETERMINED BY CARRIER SIGNAL PARAMETERS | GRANT | 1992-09-22 | 1990-09-28 | 24362111 | Good | Motorola Inc | Motorola Solutions Inc |
| US6097762A | 0.461 | Communication system | GRANT | 2000-08-01 | 1994-09-09 | 26521360 | Good | Sony Corp | Sony Corp |
| US5119504A | 0.460 | POSITION AIDED SUBSCRIBER UNIT FOR A SATELLITE CELLULAR SYSTEM | GRANT | 1992-06-02 | 1990-07-19 | 24214196 | Good | Motorola Inc | CDC Propriete Intellectuelle |
| US7079506B1 | 0.459 | Enhancements to the 3-carrier compact solution for IS-136HS | GRANT | 2006-07-18 | 1999-05-28 | 26834348 | Good | Nokia Oyj | Nokia Mobile Phones Ltd, Nokia Oyj |
| US6647025B1 | 0.459 | OFDM reception apparatus | GRANT | 2003-11-11 | 1998-11-26 | 26420595 | Good | Panasonic Corp | Panasonic Intellectual Property Corp of America |
| US7606575B2 | 0.457 | Remote radio data communication system with data rate switching | GRANT | 2009-10-20 | 1988-08-04 | 27586351 | Good | Broadcom Corp | Avago Technologies International Sales Pte Ltd |
| US6882631B1 | 0.457 | Method and apparatus for overlaying two CDMA systems on the same frequency bandwidth | GRANT | 2005-04-19 | 1999-09-13 | 23562471 | Good | Qualcomm Inc | Qualcomm Inc |
| US7586873B2 | 0.457 | Wireless communications system that supports multiple modes of operation | GRANT | 2009-09-08 | 2000-09-01 | 34826310 | Good | Intel Corp | Apple Inc |
| US7773566B2 | 0.456 | System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system | GRANT | 2010-08-10 | 1998-06-01 | 34069285 | Good | Tantivy Communications Inc | Apple Inc |
| US20040095907A1 | 0.456 | Method and apparatus for optimization of wireless multipoint electromagnetic communication networks | APPLICATION | 2004-05-20 | 2000-06-13 | 32303438 | Good | Comcast Cable Communications LLC | Comcast Cable Communications LLC |
| US7406128B2 | 0.455 | Communication system using orthogonal frequency division multiplexed signal | GRANT | 2008-07-29 | 1998-10-07 | 17884330 | Good | D&M Holdings Inc | D&M Holdings Inc |
| US6625125B1 | 0.454 | Method and device for measuring field strength of received signal in time-division multiple access | GRANT | 2003-09-23 | 1998-06-19 | 15942278 | Good | Panasonic Corp | Godo Kaisha IP Bridge 1 |
| US6014385A | 0.453 | Method and apparatus for transmitting packetized data over a common communications channel | GRANT | 2000-01-11 | 1996-12-28 | 25124514 | Good | Nokia of America Corp | Nokia of America Corp |
| US4882725A | 0.453 | Multiplex transmission method and apparatus | GRANT | 1989-11-21 | 1987-01-30 | 27520019 | Good | Hitachi Ltd, Hitachi Video Engineering Co Ltd | Hitachi Image Information Systems Inc, Hitachi Ltd |
| EP0961448A2 | 0.453 | Modulator demodulator and transmission system for use in OFDM transmission | GRANT | 1999-12-01 | 1998-05-26 | 15371835 | Good | Panasonic Corp | Panasonic Corp |
| US6564036B1 | 0.453 | Mode switching in adaptive array communications systems | GRANT | 2003-05-13 | 2000-09-29 | 24716438 | Good | Arraycomm LLC | Intel Corp |
| US5933053A | 0.451 | Burst demodulator | GRANT | 1999-08-03 | 1997-02-28 | 12752083 | Good | NEC Corp | NEC Corp |
| US5870385A | 0.450 | Allocation method and apparatus for reusing network resources in a wireless communication system | GRANT | 1999-02-09 | 1994-10-26 | 8218139 | Good | International Business Machines Corp | International Business Machines Corp |
| US5732113A | 0.450 | Timing and frequency synchronization of OFDM signals | GRANT | 1998-03-24 | 1996-06-20 | 24673373 | Good | Leland Stanford Junior University | Leland Stanford Junior University |
| US6404755B1 | 0.450 | Multi-level information mapping system and method | GRANT | 2002-06-11 | 1996-11-07 | 23278065 | Good | Harris Broadband Wireless Access Inc | Comerica Bank Canada, BWA Technology Inc |
| US5365450A | 0.450 | Hybrid GPS/data line unit for rapid precise and robust position determination | GRANT | 1994-11-15 | 1992-12-17 | 25538864 | Good | Stanford Telecommunications Inc | Exelis Inc |
| US5706428A | 0.446 | Multirate wireless data communication system | GRANT | 1998-01-06 | 1996-03-14 | 24465246 | Good | Nokia of America Corp | Mosaid Technologies Inc |
| US7016296B2 | 0.445 | Adaptive modulation for fixed wireless link in cable transmission system | GRANT | 2006-03-21 | 2000-10-16 | 26933946 | Good | Broadcom Corp | Avago Technologies International Sales Pte Ltd |
| US6690747B2 | 0.443 | Method for reference signal generation in the presence of frequency offsets in a communications station with spatial processing | GRANT | 2004-02-10 | 1996-10-11 | 22545809 | Good | Arraycomm LLC | Intel Corp |
| US6014412A | 0.442 | Digital radio frequency interference canceller | GRANT | 2000-01-11 | 1996-04-19 | 27360530 | Good | Amati Communications Corp | Texas Instruments Inc |
| US7016298B2 | 0.442 | Signal transmission/reception system of orthogonal frequency division multiplexing | GRANT | 2006-03-21 | 2000-06-23 | 18689447 | Good | Hitachi Kokusai Electric Inc, Nippon Hoso Kyokai NHK | Hitachi Kokusai Electric Inc, Japan Broadcasting Corp |
| US5742907A | 0.442 | Automatic clear voice and land-line backup alignment for simulcast system | GRANT | 1998-04-21 | 1995-07-19 | 24006071 | Good | Ericsson Inc | Ericsson Inc |
| US7746830B2 | 0.442 | System and method for maintaining wireless channels over a reverse link of a CDMA wireless communication system | GRANT | 2010-06-29 | 1998-06-01 | 22211235 | Good | InterDigital Technology Corp | InterDigital Technology Corp, Intel Corp |
| US6625111B1 | 0.442 | OFDM communication apparatus | GRANT | 2003-09-23 | 1999-03-16 | 13444851 | Good | Panasonic Corp | Redwood Technologies LLC |
| US6434205B1 | 0.441 | Digital broadcast receiver using weighted sum of channel impulse response data to adjust sampling window | GRANT | 2002-08-13 | 1998-06-02 | 15553776 | Good | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US7080788B2 | 0.441 | Modular portable data processing terminal for use in a radio frequency communication network | GRANT | 2006-07-25 | 1989-04-14 | 40672222 | Good | Broadcom Corp | Avago Technologies International Sales Pte Ltd |
| US6771976B1 | 0.441 | Radiocommunication apparatus radiocommunication system and radiocommunication method | GRANT | 2004-08-03 | 1999-11-19 | 18227724 | Good | Sony Corp | Redwood Technologies LLC |
| US7853254B2 | 0.441 | Modular portable data processing terminal for use in a radio frequency communication network | GRANT | 2010-12-14 | 1993-08-31 | 39970891 | Good | Broadcom Corp | Avago Technologies International Sales Pte Ltd |
| US7383038B2 | 0.441 | Modular portable data processing terminal for use in a radio frequency communication network | GRANT | 2008-06-03 | 1990-01-18 | 34682476 | Good | Broadcom Corp | Avago Technologies International Sales Pte Ltd |
| US20080075033A1 | 0.439 | Cooperative beam-forming in wireless networks | APPLICATION | 2008-03-27 | 2000-11-22 | 46328265 | Good | GENGHISCOMM | GENGHISCOMM |
| US5819000A | 0.439 | Magnetic recording and playback apparatus | GRANT | 1998-10-06 | 1992-03-26 | 26409144 | Good | Panasonic Corp | Panasonic Corp |
| US5592490A | 0.439 | Spectrally efficient high capacity wireless communication systems | GRANT | 1997-01-07 | 1991-12-12 | 23482624 | Good | Arraycomm LLC | Intel Corp |
| US5541963A | 0.439 | Diversity receiving apparatus | GRANT | 1996-07-30 | 1993-12-01 | 26562686 | Good | Hitachi Ltd | Hitachi Ltd |
| US7606287B2 | 0.439 | Radio frequency communication network having adaptive communication parameters | GRANT | 2009-10-20 | 1989-08-03 | 27513679 | Good | Broadcom Corp | Avago Technologies International Sales Pte Ltd |
| US7085223B2 | 0.438 | Communication device for receiving and transmitting OFDM signals in a wireless communication system | GRANT | 2006-08-01 | 2000-08-24 | 8169638 | Good | Sony International Europe GmbH | Sony Deutschland GmbH |
| US7239666B1 | 0.438 | Communication system | GRANT | 2007-07-03 | 1994-09-09 | 38196864 | Good | Sony Corp | Sony Corp |
| US7936728B2 | 0.438 | System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system | GRANT | 2011-05-03 | 1997-12-17 | 27556159 | Good | Tantivy Communications Inc | Apple Inc |
| US6067290A | 0.437 | Spatial multiplexing in a cellular network | GRANT | 2000-05-23 | 1999-07-30 | 23433228 | Good | Gigabit Wireless Inc | Intel Corp |
| US5243629A | 0.436 | MULTI-SUBCARRIER MODULATION FOR HDTV TRANSMISSION | GRANT | 1993-09-07 | 1991-09-03 | 25030862 | Good | AT&T Bell Laboratories Inc | Nokia Bell Labs, AT&T Corp |
| US6549589B1 | 0.436 | Digital audio broadcasting receiver | GRANT | 2003-04-15 | 1998-02-27 | 12748433 | Good | Sony Corp | Sony Corp |
| US6351497B1 | 0.436 | Communication system | GRANT | 2002-02-26 | 1995-09-06 | 24088268 | Good | Sony Corp | Sony Corp |
| US6198781B1 | 0.436 | Apparatus and method of demodulating coded signal under OFDM transmission | GRANT | 2001-03-06 | 1997-03-31 | 14206853 | Good | Victor Company of Japan Ltd | Rakuten Group Inc |
| US6169768B1 | 0.435 | Receiving apparatus and method | GRANT | 2001-01-02 | 1997-05-02 | 14644790 | Good | Sony Corp | Sony Corp |
| US6301296B1 | 0.434 | Digital impairment learning sequence | GRANT | 2001-10-09 | 1999-06-24 | 27385540 | Good | Cirrus Logic Inc | Farrel Ltd, Intel Corp |
| US7012882B2 | 0.434 | Channel estimator for OFDM system | GRANT | 2006-03-14 | 2000-08-01 | 8169423 | Good | Sony International Europe GmbH | Sony Deutschland GmbH |
| US4914655A | 0.433 | Multiplexing arrangement for a digital transmission system | GRANT | 1990-04-03 | 1986-06-20 | 25368426 | Good | American Telephone and Telegraph Co Inc, AT&T Bell Laboratories Inc | Nokia Bell Labs, AT&T Corp |
| US6539065B1 | 0.433 | Digital audio broadcasting receiver | GRANT | 2003-03-25 | 1998-09-30 | 17603606 | Good | Panasonic Corp | Panasonic Corp |
| US6449246B1 | 0.433 | Multicarrier personal access communication system | GRANT | 2002-09-10 | 1999-09-15 | 22549992 | Good | Telcordia Technologies Inc | Cisco Technology Inc |
| US6018555A | 0.432 | Network utilizing modified preambles that support antenna diversity | GRANT | 2000-01-25 | 1995-05-01 | 23714292 | Good | Intermec IP Corp | Avago Technologies International Sales Pte Ltd |
| US6907026B2 | 0.431 | Receiving apparatus for signal transmission system of orthogonal frequency division multiplexing type | GRANT | 2005-06-14 | 2000-06-27 | 18691473 | Good | Hitachi Kokusai Electric Inc | Hitachi Kokusai Electric Inc |
| US7061997B1 | 0.431 | Method and apparatus for fine frequency synchronization in multi-carrier demodulation systems | GRANT | 2006-06-13 | 1998-04-14 | 8166940 | Good | Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV | Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV |
| US4589108A | 0.431 | Multiplexer demultiplexer and multiplexing-demultiplexing equipment with reconfigurable frames | GRANT | 1986-05-13 | 1983-05-04 | 9288583 | Good | ||
| US6724814B1 | 0.430 | Pad and CODEC detection | GRANT | 2004-04-20 | 1999-06-24 | 32110727 | Good | Intel Corp | Micron Technology Inc |
| US5007088A | 0.430 | Scrambling/descrambling method using a memory for storing initial pseudo-random bit patterns respectively for submultiframes | GRANT | 1991-04-09 | 1988-03-01 | 12788324 | Good | NEC Corp | NEC Corp |
| US6075812A | 0.429 | High-data-rate wireless local-area network | GRANT | 2000-06-13 | 1994-02-17 | 26893503 | Good | Micrilor Inc | Symbol Technologies LLC |
| EP0689307A1 | 0.426 | A digital broadcasting system and a receiver to be used in the system | GRANT | 1995-12-27 | 1994-06-16 | 8540939 | Good | Nokia Technology GmbH | Nokia Technology GmbH |
| US6009073A | 0.426 | Method for transmitting an orthogonal frequency division multiplex signal apparatus for transmitting the signal and apparatus for receiving the signal | GRANT | 1999-12-28 | 1995-09-25 | 26383688 | Good | Victor Company of Japan Ltd | Rakuten Group Inc |
| US20020159426A1 | 0.426 | Base station apparatus and radio communication method | APPLICATION | 2002-10-31 | 2000-03-27 | 18602162 | Good | Panasonic Corp | Panasonic Corp |
| US6839335B1 | 0.425 | Radio communication apparatus and radio communication method | GRANT | 2005-01-04 | 1999-07-02 | 16242671 | Good | Panasonic Corp | INVT SPE LLC |
| US6757265B1 | 0.425 | Subscriber unit in a hybrid link incorporating spatial multiplexing | GRANT | 2004-06-29 | 1999-07-30 | 32511086 | Good | Iospan Wireless Inc | Intel Corp |
| US20020010001A1 | 0.424 | Methods and arrangements in a telecommunications system | APPLICATION | 2002-01-24 | 2000-06-06 | 20280038 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US4797678A | 0.424 | Device for predicting unique word detection positions in a TDMA station by using latest valid detection positions | GRANT | 1989-01-10 | 1984-06-14 | 14854643 | Good | NEC Corp | NEC Corp |
| US5625880A | 0.424 | Spectrally efficient and high capacity acknowledgement radio paging system | GRANT | 1997-04-29 | 1991-12-12 | 23086218 | Good | Arraycomm LLC | Intel Corp |
| US20020062472A1 | 0.423 | Dynamically reconfigurable universal transmitter system | APPLICATION | 2002-05-23 | 2000-08-03 | 22833977 | Good | Morphics Technology Inc | Intel Deutschland GmbH, Morphics Technology Inc |
| US6983027B2 | 0.423 | OFDM transmit signal receiver | GRANT | 2006-01-03 | 2000-11-17 | 18824638 | Good | Toshiba Corp | Toshiba Corp |
| EP0447302A1 | 0.423 | Time-multiplexed radio communication device | GRANT | 1991-09-18 | 1990-03-16 | 9394840 | Good | Matra Communication SA | Nortel Networks France SAS |
| US5515378A | 0.423 | Spatial division multiple access wireless communication systems | GRANT | 1996-05-07 | 1991-12-12 | 25194624 | Good | Arraycomm LLC | Intel Corp |
| US6956834B2 | 0.422 | Method and apparatus for allocating bandwidth in a wireless communication system | GRANT | 2005-10-18 | 1999-05-21 | 23229388 | Good | WiLAN Inc | Quarterhill Inc |
| US6314083B1 | 0.422 | Frequency control device and method for frequency synchronization with multiplex signal by OFDM receiving device and communication device | GRANT | 2001-11-06 | 1997-04-04 | 13903483 | Good | Nippon Columbia Co Ltd | D&M Holdings Inc |
| US6747948B1 | 0.421 | Interleaver scheme in an OFDM system with multiple-stream data sources | GRANT | 2004-06-08 | 1999-08-11 | 32326137 | Good | Nokia of America Corp | Provenance Asset Group LLC, Nokia USA Inc |
| US6876675B1 | 0.420 | Synchronization in OFDM systems | GRANT | 2005-04-05 | 1998-02-06 | 34380577 | Good | Cisco Technology Inc | Cisco Technology Inc |
| US5519730A | 0.420 | Communication signal having a time domain pilot component | GRANT | 1996-05-21 | 1990-06-12 | 25128766 | Good | Motorola Inc | Motorola Solutions Inc |
| US7035661B1 | 0.420 | Power control with signal quality estimation for smart antenna communication systems | GRANT | 2006-04-25 | 1996-10-11 | 36191135 | Good | Arraycomm LLC | Intel Corp |
| US7227834B1 | 0.420 | Synchronizing pulse generating method and method of receiving OFDM signal | GRANT | 2007-06-05 | 1999-08-27 | 29798141 | Good | Mitsubishi Corp | TCL Communication Technology Holdings Ltd, Mitsubishi Corp |
| US5822324A | 0.419 | Simulcasting digital video programs for broadcast and interactive services | GRANT | 1998-10-13 | 1995-03-16 | 27019122 | Good | Bell Atlantic Network Services Inc | Verizon Patent and Licensing Inc |
| US5555275A | 0.419 | Multi-threshold and hierarchical television signal transmission system | GRANT | 1996-09-10 | 1991-03-27 | 27523610 | Good | Panasonic Corp | Panasonic Corp |
| US5499386A | 0.418 | Best server selection in layered cellular radio system | GRANT | 1996-03-12 | 1993-07-09 | 22224061 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US6658063B1 | 0.418 | OFDM packet communication receiver system | GRANT | 2003-12-02 | 1999-07-19 | 27328386 | Good | Nippon Telegraph and Telephone Corp | Nippon Telegraph and Telephone Corp |
| US5416767A | 0.416 | Method of transmitting a data stream transmitter and receiver | GRANT | 1995-05-16 | 1993-02-08 | 8213621 | Good | US Philips Corp | US Philips Corp |
| US5170413A | 0.416 | Control strategy for reuse system assignments and handoff | GRANT | 1992-12-08 | 1990-12-24 | 24536089 | Good | Motorola Inc | Motorola Solutions Inc |
| US20060274817A1 | 0.415 | Method and apparatus for wireless communications | APPLICATION | 2006-12-07 | 2000-09-25 | 34375905 | Good | Pulse Link Inc | Intellectual Ventures Holding 81 LLC |
| US6930989B1 | 0.415 | Wide frequency offset correction using encoded interburst phase differences | GRANT | 2005-08-16 | 2000-06-20 | 34826282 | Good | Cisco Technology Inc | Cisco Technology Inc |
| EP0788265A2 | 0.414 | Synchronisation in multicarrier systems | GRANT | 1997-08-06 | 1996-01-31 | 26378249 | Good | Victor Company of Japan Ltd | Victor Company of Japan Ltd |
| US5875186A | 0.414 | Dynamic wireless local area network with interactive communications within the network | GRANT | 1999-02-23 | 1993-06-25 | 22170428 | Good | Netwave Tech Ltd | Avaya Inc |
| US5291289A | 0.413 | Method and apparatus for transmission and reception of a digital television signal using multicarrier modulation | GRANT | 1994-03-01 | 1990-11-16 | 25317946 | Good | North American Philips Corp | Philips North America LLC |
| US5598220A | 0.413 | Digital signal with multilevel symbols and sync recognition | GRANT | 1997-01-28 | 1991-07-18 | 46249957 | Good | Zenith Electronics LLC | Zenith Electronics LLC |
| US4888792A | 0.413 | Multi-level quadrature amplitude modulation and demodulation system | GRANT | 1989-12-19 | 1987-08-27 | 16636599 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US20080225963A1 | 0.412 | Ultra-wideband communication systems and methods | APPLICATION | 2008-09-18 | 2000-09-25 | 36148786 | Good | Pulse Link Inc | Intellectual Ventures Holding 81 LLC |
| US8457145B2 | 0.412 | Method and apparatus for bandwidth request/grant protocols in a wireless communication system | GRANT | 2013-06-04 | 1999-05-21 | 34525935 | Good | WiLAN Inc | Quarterhill Inc |
| US6166651A | 0.411 | Radio selective calling receiver having automatic time correction function | GRANT | 2000-12-26 | 1996-12-18 | 18308150 | Good | NEC Corp | Lenovo Innovations Ltd Hong Kong |
| WO1996028904A1 | 0.411 | SIMULCASTING DIGITAL VIDEO PROGRAMS FOR BROADCAST AND INTERACTIVE SERVICES | APPLICATION | 1996-09-19 | 1995-03-16 | 27410636 | Good | ||
| US6493395B1 | 0.411 | Multi-carrier transmission systems | GRANT | 2002-12-10 | 1996-09-02 | 20403748 | Good | STMicroelectronics NV | STMicroelectronics NV |
| US6839573B1 | 0.411 | Apparatus and method for beamforming in a changing-interference environment | GRANT | 2005-01-04 | 1999-06-07 | 23278023 | Good | Arraycomm LLC | Intel Corp |
| US6504506B1 | 0.411 | Method and device for fixed in time adaptive antenna combining weights | GRANT | 2003-01-07 | 2000-06-30 | 24433497 | Good | Motorola Inc | Motorola Solutions Inc |
| US6480497B1 | 0.410 | Method and apparatus for maximizing data throughput in a packet radio mesh network | GRANT | 2002-11-12 | 1998-11-23 | 22731840 | Good | Ricochet Networks Inc | LG Electronics Inc |
| US7616970B2 | 0.410 | Dual mode unit for short range high rate and long range lower rate data communications | GRANT | 2009-11-10 | 1999-09-21 | 23582368 | Good | IPR Licensing Inc | IPR Licensing Inc |
| EP1120931A1 | 0.409 | A method for enhancing the capacity of a cellular radio-communication system and corresponding system | GRANT | 2001-08-01 | 2000-01-25 | 8174091 | Good | Alcatel CIT SA, Alcatel SA | Alcatel CIT SA, Alcatel SA |
| US6430149B1 | 0.408 | Processing circuits for complex operation | GRANT | 2002-08-06 | 1998-04-01 | 13948429 | Good | Sony Corp | Sony Corp |
| US6321090B1 | 0.408 | Mobile communication system with position detection to facilitate hard handoff | GRANT | 2001-11-20 | 1998-11-06 | 22691113 | Good | Qualcomm Inc | Qualcomm Inc |
| US5862451A | 0.407 | Channel quality management in a cable telephony system | GRANT | 1999-01-19 | 1996-01-22 | 24359783 | Good | Motorola Inc | Google Technology Holdings LLC |
| US6961575B2 | 0.407 | Ad Hoc peer-to-peer mobile radio access system interfaced to the PSTN and cellular networks | GRANT | 2005-11-01 | 2000-11-13 | 26939166 | Good | MeshNetworks Inc | MESH NETWORKS, Arris Enterprises LLC |
| US8134980B2 | 0.407 | Transmittal of heartbeat signal at a lower level than heartbeat request | GRANT | 2012-03-13 | 1998-06-01 | 46584515 | Good | IPR Licensing Inc | Apple Inc |
| US6300899B1 | 0.407 | Fixed site data-aided GPS signal acquisition method and system | GRANT | 2001-10-09 | 1999-02-19 | 22961195 | Good | Motorola Inc | CSR Technology Inc |
| US6070056A | 0.406 | Amplitude-phase correction circuit receiving device and transmitting device | GRANT | 2000-05-30 | 1996-08-23 | 16790165 | Good | Sony Corp | Sony Corp |
| US7139592B2 | 0.406 | Null deepening for an adaptive antenna based communication station | GRANT | 2006-11-21 | 1999-06-21 | 23318350 | Good | Arraycomm LLC | Intel Corp |
| US7817666B2 | 0.405 | Method and system for adaptively obtaining bandwidth allocation requests | GRANT | 2010-10-19 | 1999-05-21 | 45695360 | Good | WiLAN Inc | Quarterhill Inc |
| US8462810B2 | 0.405 | Method and system for adaptively obtaining bandwidth allocation requests | GRANT | 2013-06-11 | 1999-05-21 | 52347643 | Good | WiLAN Inc | Quarterhill Inc |
| US6985466B1 | 0.404 | Downlink signal processing in CDMA systems utilizing arrays of antennae | GRANT | 2006-01-10 | 1999-11-09 | 23737787 | Good | Arraycomm LLC | Intel Corp |
| US6711412B1 | 0.403 | Interference mitigation in wireless communications by training of interfering signals | GRANT | 2004-03-23 | 2000-10-13 | 24762559 | Good | Iospan Wireless Inc | Intel Corp, Gigabit Wireless Inc |
| US6700926B1 | 0.403 | Method and apparatus providing bit-to-symbol mapping for space-time codes | GRANT | 2004-03-02 | 1999-12-10 | 31716057 | Good | Nokia Oyj | Nokia Mobile Phones Ltd, Nokia Oyj |
| US6181714B1 | 0.402 | Multi-carrier transmission systems | GRANT | 2001-01-30 | 1996-09-02 | 20403746 | Good | Telia AB | Comcast Cable Communications LLC |
| US6477210B2 | 0.401 | System for near optimal joint channel estimation and data detection for COFDM systems | GRANT | 2002-11-05 | 2000-02-07 | 27391326 | Good | AT&T Corp | AT&T Corp |
| US5319796A | 0.400 | Communication system that avoids co-channel interference | GRANT | 1994-06-07 | 1990-12-14 | 24511319 | Good | Motorola Inc | Motorola Solutions Inc |
| US5105442A | 0.399 | CODED MODULATION WITH UNEQUAL ERROR PROTECTION | GRANT | 1992-04-14 | 1990-11-07 | 24448027 | Good | AT&T Bell Laboratories Inc | AT&T Corp, Agere Systems LLC |
| US5805992A | 0.399 | Method for validating a communication link | GRANT | 1998-09-08 | 1994-01-06 | 22900234 | Good | Motorola Inc | Motorola Solutions Inc |
| US6526264B2 | 0.398 | Wideband multi-protocol wireless radio transceiver system | GRANT | 2003-02-25 | 2000-11-03 | 22926770 | Good | Cognio LLC | Cisco Technology Inc |
| US5561468A | 0.397 | Multiplexed modulation system for robust audio digital television | GRANT | 1996-10-01 | 1993-05-07 | 22027882 | Good | North American Philips Corp | Sony Corp, Philips North America LLC |
| US5166924A | 0.395 | ECHO CANCELLATION IN MULTI-FREQUENCY DIFFERENTIALLY ENCODED DIGITAL COMMUNICATIONS | GRANT | 1992-11-24 | 1990-03-06 | 23949387 | Good | Mercury Digital Communications Inc | HMD HOLDINGS |
| US4525846A | 0.394 | Modem in-band secondary channel via radial modulation | GRANT | 1985-06-25 | 1982-12-27 | 23799436 | Good | Paradyne Corp | Paradyne Corp |
| US6362781B1 | 0.393 | Method and device for adaptive antenna combining weights | GRANT | 2002-03-26 | 2000-06-30 | 24433508 | Good | Motorola Inc | Motorola Solutions Inc |
| US5544198A | 0.392 | Procedure for the identification of transmitter or region in common-wave broadcasting networks | GRANT | 1996-08-06 | 1991-01-28 | 6423828 | Good | Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH | Grundig Multimedia BV, Delphi Technologies Inc |
| US8098568B2 | 0.392 | Signaling method in an OFDM multiple access system | GRANT | 2012-01-17 | 2000-09-13 | 26924698 | Good | Qualcomm Inc | Qualcomm Inc |
| WO2001043289A1 | 0.392 | METHOD AND APPARATUS PROVIDING BIT-TO-SYMBOL MAPPING FOR SPACE-TIME CODES | APPLICATION | 2001-06-14 | 1999-12-10 | 27038956 | Good | ||
| US5063445A | 0.392 | Multiple sub-sampling transmitting/receiving system performing interfield and interframe offset sub-sampling of a broad bandwidth television signal | GRANT | 1991-11-05 | 1990-04-19 | 24034625 | Good | Nippon Hoso Kyokai NHK | Japan Broadcasting Corp |
| US6795424B1 | 0.390 | Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systems | GRANT | 2004-09-21 | 1998-06-30 | 22313783 | Good | Tellabs Operations Inc | Coriant Operations Inc |
| US6169728B1 | 0.389 | Apparatus and method for spectrum management in a multipoint communication system | GRANT | 2001-01-02 | 1996-03-29 | 24506890 | Good | Motorola Inc | Motorola Mobility LLC, Arris Enterprises LLC |
| US4794447A | 0.388 | Method and apparatus for transmitting and receiving a high definition NTSC compatible television signal over a single DBS channel in time division multiplex form | GRANT | 1988-12-27 | 1986-11-17 | 25461300 | Good | North American Philips Corp | Philips North America LLC |
| US5576717A | 0.388 | Base station antenna arrangement | GRANT | 1996-11-19 | 1993-08-12 | 10740431 | Good | Northern Telecom Ltd | Microsoft Technology Licensing LLC |
| US5226081A | 0.386 | MULTI-CARRIER COMMUNICATION SYSTEM USING CIPHERED CARRIER BIT ASSIGNMENT INFORMATION | GRANT | 1993-07-06 | 1990-05-17 | 14964250 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US6246664B1 | 0.386 | Modulator for modulating digital signals | GRANT | 2001-06-12 | 1997-04-18 | 7826961 | Good | Alcatel SA | Alcatel SA |
| US4601045A | 0.385 | Modulator-demodulator method and apparatus with efficient bandwidth utilization | GRANT | 1986-07-15 | 1984-08-03 | 24555600 | Good | LARSE CORP | LARSE Corp A CORP OF, LARSE CORP |
| US7110476B1 | 0.385 | Demodulation and modulation circuit and demodulation and modulation method | GRANT | 2006-09-19 | 1999-02-24 | 12724861 | Good | NEC Corp | Lenovo Innovations Ltd Hong Kong |
| US6324172B1 | 0.384 | Method of rate allocation in a data communications network | GRANT | 2001-11-27 | 1999-03-08 | 23005420 | Good | Qualcomm Inc | Qualcomm Inc |
| US4561089A | 0.384 | Correlation detectors for use in direct sequence spread spectrum signal receiver | GRANT | 1985-12-24 | 1984-03-23 | 24371609 | Good | Sangamo Weston Inc | Atos Origin IT Services Inc |
| US7299071B1 | 0.384 | Downlink broadcasting by sequential transmissions from a communication station having an antenna array | GRANT | 2007-11-20 | 1997-12-10 | 46203939 | Good | Arraycomm LLC | Intel Corp |
| US6704374B1 | 0.383 | Local oscillator frequency correction in an orthogonal frequency division multiplexing system | GRANT | 2004-03-09 | 2000-02-16 | 24009275 | Good | Thomson Licensing SAS | Thomson Licensing SAS |
| US9042400B2 | 0.381 | Multi-detection of heartbeat to reduce error probability | GRANT | 2015-05-26 | 1997-12-17 | 27538842 | Good | Intel Corp | Apple Inc |
| US6952394B1 | 0.381 | Method for transmitting and receiving orthogonal frequency division multiplexing signal and apparatus therefor | GRANT | 2005-10-04 | 1999-05-25 | 26635233 | Good | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US6628735B1 | 0.380 | Correction of a sampling frequency offset in an orthogonal frequency division multiplexing system | GRANT | 2003-09-30 | 1999-12-22 | 23871705 | Good | Thomson Licensing SAS | Thomson Licensing SAS |
| WO1997001256A1 | 0.380 | ADAPTIVE CHANNEL ALLOCATION IN A FREQUENCY DIVISION MULTIPLEXED SYSTEM | APPLICATION | 1997-01-09 | 1995-06-22 | 23960420 | Good | ||
| US6628733B1 | 0.379 | Diversity receiving device and method thereof | GRANT | 2003-09-30 | 1998-11-10 | 18103015 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US5699365A | 0.379 | Apparatus and method for adaptive forward error correction in data communications | GRANT | 1997-12-16 | 1996-03-27 | 24505947 | Good | Motorola Inc | Google Technology Holdings LLC |
| US6549544B1 | 0.379 | Method and apparatus for transmission and reception of FM in-band on-channel digital audio broadcasting | GRANT | 2003-04-15 | 1999-11-10 | 23739444 | Good | Ibiquity Digital Corp | Ibiquity Digital Corp |
| US3959726A | 0.379 | Pilot signal transmission system | GRANT | 1976-05-25 | 1971-09-18 | 26413917 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US7573807B1 | 0.378 | Method and apparatus for performing differential modulation over frequency in an orthogonal frequency division multiplexing (OFDM) communication system | GRANT | 2009-08-11 | 1999-09-17 | 23575627 | Good | Nokia of America Corp | WSOU Investments LLC |
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| US5181112A | 0.376 | TELEVISION SIGNAL TRANSMISSION SYSTEM WITH CARRIER OFFSET COMPENSATION | GRANT | 1993-01-19 | 1991-03-11 | 24677023 | Good | Zenith Electronics LLC | LG Electronics Inc |
| US5134464A | 0.376 | Method and apparatus for the transmission and reception of a multicarrier digital television signal | GRANT | 1992-07-28 | 1990-11-16 | 24596778 | Good | North American Philips Corp | Philips North America LLC |
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| US7349487B2 | 0.375 | Nyquist filter and method | GRANT | 2008-03-25 | 1999-04-28 | 23166163 | Good | Soar SK LLC | Benhov GmbH LLC |
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| US5740534A | 0.360 | Method for determining available frequencies in selective call receivers | GRANT | 1998-04-14 | 1996-02-22 | 24424179 | Good | Motorola Inc | Google Technology Holdings LLC |
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| US6549566B1 | 0.357 | Bandwidth reduced multi carrier wireless transceiver and method thereof | GRANT | 2003-04-15 | 1998-10-01 | 19552938 | Good | Electronics and Telecommunications Research Institute ETRI | Electronics and Telecommunications Research Institute ETRI |
| US6452986B1 | 0.357 | Detector tolerant of frequency misalignment | GRANT | 2002-09-17 | 1999-05-17 | 23214491 | Good | Cellnet Data Systems Inc | Landis and Gyr Innovations Inc |
| US9525923B2 | 0.357 | Multi-detection of heartbeat to reduce error probability | GRANT | 2016-12-20 | 1997-12-17 | 57544581 | Good | Intel Corp | Intel Corp |
| US6377631B1 | 0.356 | Transmitter incorporating spatio-temporal processing | GRANT | 2002-04-23 | 1996-08-29 | 26699473 | Good | Cisco Systems Inc | Cisco Technology Inc, Cisco Systems Inc |
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| US5949796A | 0.350 | In-band on-channel digital broadcasting method and system | GRANT | 1999-09-07 | 1996-06-19 | 24676348 | Good | Digital Radio Express Inc | Digital Radio Express Inc |
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| US5959967A | 0.350 | Digital transmission system | GRANT | 1999-09-28 | 1995-08-19 | 10779496 | Good | Northern Telecom Ltd | RPX Clearinghouse LLC |
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| US5983085A | 0.348 | Method and apparatus that compensates for output power variations in a transmitter by using scaling factors to scale the baseband input signal | GRANT | 1999-11-09 | 1996-09-25 | 24891250 | Good | Hughes Electronics Corp | DirecTV Group Inc |
| US5222247A | 0.348 | METHOD FOR MAXIMIZING CHANNEL SELECTION IN A COMMUNICATION SYSTEM | GRANT | 1993-06-22 | 1990-10-01 | 24363588 | Good | Motorola Inc | Motorola Solutions Inc |
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| US5565932A | 0.347 | AGC system with pilot using digital data reference | GRANT | 1996-10-15 | 1994-11-08 | 23312471 | Good | Zenith Electronics LLC | Zenith Electronics LLC |
| US6580762B1 | 0.346 | Rate matching method | GRANT | 2003-06-17 | 1998-11-02 | 27339048 | Good | NEC Corp | NEC Corp |
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| US6873839B2 | 0.340 | Prioritized-routing for an ad-hoc peer-to-peer mobile radio access system | GRANT | 2005-03-29 | 2000-11-13 | 26939165 | Good | MeshNetworks Inc | Arris Enterprises LLC |
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| US6944120B2 | 0.339 | Method and system for tiered digital television terrestrial broadcasting services using multi-bit-stream frequency interleaved OFDM | GRANT | 2005-09-13 | 2000-04-12 | 22724815 | Good | Canada Minister of Industry | Canada, AS REPRESENTED BY TH MINISTER OF INDUSTRY, Apple Inc |
| US6662337B1 | 0.339 | Digital transmission system and method | GRANT | 2003-12-09 | 1998-10-30 | 8235135 | Good | Agere Systems LLC | Avago Technologies International Sales Pte Ltd, Agere Systems LLC |
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| US7773688B2 | 0.335 | Method system and apparatus for balanced frequency up-conversion including circuitry to directly couple the outputs of multiple transistors | GRANT | 2010-08-10 | 1999-04-16 | 34109339 | Good | ParkerVision Inc | ParkerVision Inc |
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| US6349091B1 | 0.333 | Method and apparatus for controlling communication links between network nodes to reduce communication protocol overhead traffic | GRANT | 2002-02-19 | 1999-11-12 | 22596749 | Good | ITT Manufacturing Enterprises LLC | Stingray Ip Solutions LLC |
| US5551064A | 0.331 | Method and apparatus for communication unit frequency assignment | GRANT | 1996-08-27 | 1994-07-27 | 23076761 | Good | Motorola Inc | Motorola Solutions Inc |
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| US6895450B2 | 0.331 | Communication network having a plurality of bridging nodes which transmit a beacon to terminal nodes in power saving state that it has messages awaiting delivery | GRANT | 2005-05-17 | 1991-10-01 | 27739576 | Good | Broadcom Corp | Avago Technologies International Sales Pte Ltd |
| US5890079A | 0.330 | Remote aircraft flight recorder and advisory system | GRANT | 1999-03-30 | 1996-12-17 | 25082145 | Good | ||
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| US5164963A | 0.328 | CODING FOR DIGITAL TRANSMISSION | GRANT | 1992-11-17 | 1990-11-07 | 24448144 | Good | AT&T Bell Laboratories Inc | Nokia Bell Labs, AT&T Corp |
| US6536010B1 | 0.328 | Digital transmission system and method | GRANT | 2003-03-18 | 1998-10-30 | 8235138 | Good | Agere Systems LLC | Avago Technologies International Sales Pte Ltd, Agere Systems LLC |
| EP0154565A2 | 0.327 | Modem | GRANT | 1985-09-11 | 1984-03-08 | 24349586 | Good | Codex Corp | General Electric Co, Motorola Solutions Inc |
| US7339996B2 | 0.326 | Receiver codec super set constellation generator | GRANT | 2008-03-04 | 1999-06-24 | 32929943 | Good | Intel Corp | MaxLinear Inc |
| US5886988A | 0.326 | Channel assignment and call admission control for spatial division multiple access communication systems | GRANT | 1999-03-23 | 1996-10-23 | 25110696 | Good | Arraycomm LLC | Intel Corp |
| US6847688B1 | 0.326 | Automatic frequency control systems and methods for joint demodulation | GRANT | 2005-01-25 | 2000-10-30 | 24811483 | Good | Ericsson Inc | Ericsson Inc |
| US5228062A | 0.325 | Method and apparatus for correcting for clock and carrier frequency offset and phase jitter in multicarrier modems | GRANT | 1993-07-13 | 1990-04-16 | 27056559 | Good | Telebit Corp | Telebit Corp |
| US6658073B1 | 0.325 | Method and system for reducing jitter on constant rate data transfer between asynchronous systems | GRANT | 2003-12-02 | 1999-12-03 | 23806128 | Good | Koninklijke Philips Electronics NV | ST Ericsson SA |
| US6366309B1 | 0.324 | Method for the terrestrially transmitting digital signals | GRANT | 2002-04-02 | 1995-10-16 | 7774867 | Good | Robert Bosch GmbH | Nola Semiconductor LLC |
| US6005890A | 0.323 | Automatically adjusting communication system | GRANT | 1999-12-21 | 1997-08-07 | 25437313 | Good | Pittway Corp | Pittway Corp |
| EP0441731A1 | 0.323 | Method of data broadcasting using time-frequency interleaving and coherent demodulation | GRANT | 1991-08-14 | 1990-02-06 | 9393517 | Good | Telediffusion de France ets Public de Diffusion, Francais Etat, Centre National dEtudes des Telecommunications CNET | Telediffusion de France ets Public de Diffusion, Orange SA |
| US6570943B2 | 0.322 | Method for equalization of complementary carriers in an AM compatible digital audio broadcast system | GRANT | 2003-05-27 | 1998-10-02 | 22772412 | Good | Ibiquity Digital Corp | Ibiquity Digital Corp |
| US5233629A | 0.321 | METHOD AND APPARATUS FOR COMMUNICATING DIGITAL DATA USING TRELLIS CODED QAM | GRANT | 1993-08-03 | 1991-07-26 | 24961105 | Good | General Instrument Corp | Vizio Inc |
| US20050278607A1 | 0.321 | Spread-spectrum communications utilizing variable throughput reduction | APPLICATION | 2005-12-15 | 2000-06-14 | 24378862 | Good | Stormborn Technologies LLC | Stormborn Technologies LLC |
| US7917145B2 | 0.321 | Radio frequency local area network | GRANT | 2011-03-29 | 1992-11-02 | 46332063 | Good | Broadcom Corp | Avago Technologies International Sales Pte Ltd, Innovatio IP Ventures LLC |
| US5050188A | 0.320 | Method and apparatus for transmitting coded information | GRANT | 1991-09-17 | 1987-06-12 | 25856594 | Good | ||
| US4780883A | 0.318 | Data modem with adaptive synchronized speed change | GRANT | 1988-10-25 | 1986-06-26 | 25372793 | Good | Racal Data Communications Inc | Racal Data Communications Inc |
| US6771721B1 | 0.318 | Method and apparatus for eliminating audio clicks in a radio receiver | GRANT | 2004-08-03 | 1997-06-20 | 25375089 | Good | Telefonaktiebolaget LM Ericsson AB | Unwired Planet LLC |
| US6345377B1 | 0.318 | Digital audio broadcasting method using puncturable convolutional code | GRANT | 2002-02-05 | 1998-03-27 | 21958249 | Good | Ibiquity Digital Corp | Ibiquity Digital Corp |
| US7415548B2 | 0.317 | Communication network having a plurality of bridging nodes which transmits a polling message with backward learning technique to determine communication pathway | GRANT | 2008-08-19 | 1991-05-13 | 34557971 | Good | Broadcom Corp | Avago Technologies International Sales Pte Ltd |
| US20010005359A1 | 0.317 | Method in a telecommunication system | APPLICATION | 2001-06-28 | 1999-12-10 | 20418078 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US8019291B2 | 0.316 | Method and system for frequency down-conversion and frequency up-conversion | GRANT | 2011-09-13 | 1998-10-21 | 23497505 | Good | ParkerVision Inc | ParkerVision Inc |
| US5983078A | 0.315 | Channel spacing for distortion reduction | GRANT | 1999-11-09 | 1997-03-18 | 25229374 | Good | Cellularvision Tech and Telecommunications LP | CELLULARVISION TECHNOLOGY & TELECOMMUNICATIONS LP, Cellularvision Tech and Telecommunications LP |
| US8233855B2 | 0.313 | Up-conversion based on gated information signal | GRANT | 2012-07-31 | 1998-10-21 | 34682075 | Good | ParkerVision Inc | ParkerVision Inc |
| US5063571A | 0.312 | Method and apparatus for increasing the data rate for a given symbol rate in a spread spectrum system | GRANT | 1991-11-05 | 1989-12-27 | 23816107 | Good | Nynex LLC | Verizon Patent and Licensing Inc |
| US6219341B1 | 0.311 | Method for bandwidth efficient multiple access wireless communication | GRANT | 2001-04-17 | 1997-03-20 | 26717431 | Good | University of Technology Corp | University of Technology Corp |
| US7310353B1 | 0.311 | Compression of overhead in layered data communication links | GRANT | 2007-12-18 | 2000-10-30 | 37678994 | Good | Harington Valve LLC | Zarbana Digital Fund LLC |
| US5267021A | 0.310 | Multiresolution digital television broadcast system | GRANT | 1993-11-30 | 1992-04-03 | 25339918 | Good | Columbia University of New York | Columbia University of New York |
| US6870808B1 | 0.310 | Channel allocation in broadband orthogonal frequency-division multiple-access/space-division multiple-access networks | GRANT | 2005-03-22 | 2000-10-18 | 24781566 | Good | Adaptix Inc | J & K SERVICES LLC, SDR HOLDINGS LLC, Adaptix Inc, Kaon Systems Inc |
| US6523147B1 | 0.310 | Method and apparatus for forward error correction coding for an AM in-band on-channel digital audio broadcasting system | GRANT | 2003-02-18 | 1999-11-11 | 23742163 | Good | Ibiquity Digital Corp | Ibiquity Digital Corp |
| US6147980A | 0.308 | Avionics satellite based data message routing and delivery system | GRANT | 2000-11-14 | 1997-11-28 | 25527417 | Good | Motorola Inc | General Dynamics Mission Systems Inc |
| US5987063A | 0.307 | Method for compensating channel errors in a digital data communication system | GRANT | 1999-11-16 | 1996-03-13 | 8545645 | Good | Nokia Technology GmbH | Nokia Technology GmbH |
| US6717993B1 | 0.305 | Receiver | GRANT | 2004-04-06 | 1998-01-29 | 12394589 | Good | Kenwood KK | Rakuten Group Inc |
| US4581748A | 0.304 | QAM with DC bias in one channel | GRANT | 1986-04-08 | 1982-12-29 | 27331786 | Good | Fujitsu Ltd | Fujitsu Ltd |
| WO1997002670A1 | 0.303 | SYSTEM FOR CONNECTING A PACKET DATA NETWORK TO A DIGITAL RADIO NETWORK | APPLICATION | 1997-01-23 | 1995-07-06 | 8543745 | Good | ||
| US7016401B1 | 0.302 | Method and apparatus for automated correlation of digital modulation impairment | GRANT | 2006-03-21 | 1999-12-22 | 36045638 | Good | Motorola Inc | Google Technology Holdings LLC |
| US7653734B1 | 0.302 | Method for implementing a multimedia messaging service a multimedia messaging system a server of a multimedia messaging system and a multimedia terminal | GRANT | 2010-01-26 | 1999-11-05 | 26160801 | Good | Nokia Oyj | Conversant Wireless Licensing SARL, 2011 Intellectual Property Asset Trust |
| US7894789B2 | 0.301 | Down-conversion of an electromagnetic signal with feedback control | GRANT | 2011-02-22 | 1999-04-16 | 28047078 | Good | ParkerVision Inc | ParkerVision Inc |
| US4855692A | 0.297 | Method of quadrature-phase amplitude modulation | GRANT | 1989-08-08 | 1988-06-20 | 22775654 | Good | Northern Telecom Ltd | Nortel Networks Ltd |
| US5423001A | 0.297 | Data transmission and apparatus data processing apparatus and a neural network which utilize phase shifted modulated convolutable pseudo noise | GRANT | 1995-06-06 | 1989-11-07 | 17745700 | Good | Daikin Industries Ltd | Daikin Industries Ltd |
| US6826165B1 | 0.296 | Radio frequency local area network | GRANT | 2004-11-30 | 1991-10-01 | 25085407 | Good | Broadcom Corp | Innovatio IP Ventures LLC |
| US4630287A | 0.295 | Secondary channel signalling in a QAM data point constellation | GRANT | 1986-12-16 | 1983-12-28 | 27073887 | Good | Paradyne Corp | Xylon LLC |
| US6493360B1 | 0.294 | Reception synchronization circuit receiver using the same and digital communication system | GRANT | 2002-12-10 | 1997-12-09 | 18320357 | Good | NEC Corp | NEC Corp |
| US6005893A | 0.293 | Reduced complexity bit allocation to subchannels in a multi-carrier high speed data transmission system | GRANT | 1999-12-21 | 1997-09-23 | 25467307 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US5479447A | 0.293 | Method and apparatus for adaptive variable bandwidth high-speed data transmission of a multicarrier signal over digital subscriber lines | GRANT | 1995-12-26 | 1993-05-03 | 22009766 | Good | Leland Stanford Junior University | Leland Stanford Junior University |
| US5634199A | 0.292 | Method of subspace beamforming using adaptive transmitting antennas with feedback | GRANT | 1997-05-27 | 1993-04-14 | 46250315 | Good | Leland Stanford Junior University | Leland Stanford Junior University |
| US4303941A | 0.291 | Videotex system | GRANT | 1981-12-01 | 1979-05-16 | 9225537 | Good | Telediffusion de France ets Public de Diffusion | Telediffusion de France ets Public de Diffusion |
| US5029003A | 0.291 | Apparatus for incorporating digital signals with a standard TV signal | GRANT | 1991-07-02 | 1989-12-18 | 23793318 | Good | General Electric Co | General Electric Co |
| US5128758A | 0.291 | METHOD AND APPARATUS FOR DIGITALLY PROCESSING A HIGH DEFINITION TELEVISION AUGMENTATION SIGNAL | GRANT | 1992-07-07 | 1989-06-02 | 23422388 | Good | North American Philips Corp | Koninklijke Philips NV, Philips North America LLC, US Philips Corp |
| WO1998009383A1 | 0.290 | FREQUENCY DIVISION MULTIPLEXED TRANSMISSION OF SUB-BAND SIGNALS | APPLICATION | 1998-03-05 | 1996-08-30 | 4158828 | Good | ||
| US6038262A | 0.289 | Method and apparatus for compensation of electro-magnetic distortion using weighted feedback delay for amplitude coded sinusoidal waveform generation and transmission | GRANT | 2000-03-14 | 1998-06-09 | 22240506 | Good | Transcendata Inc | Transcendata Inc |
| US5576902A | 0.288 | Method and apparatus directed to processing trick play video data to compensate for intentionally omitted data | GRANT | 1996-11-19 | 1993-01-13 | 23301259 | Good | Hitachi America Ltd | Hitachi Ltd |
| US5377051A | 0.288 | Digital video recorder compatible receiver with trick play image enhancement | GRANT | 1994-12-27 | 1993-01-13 | 21708085 | Good | Hitachi America Ltd | Hitachi Ltd |
| US4077021A | 0.287 | Method and arrangement for coding binary signals and modulating a carrier signal | GRANT | 1978-02-28 | 1976-06-18 | 4330687 | Good | International Business Machines Corp | International Business Machines Corp |
| US5452015A | 0.286 | Method and apparatus for combating co-channel NTSC interference for digital TV transmission | GRANT | 1995-09-19 | 1994-02-10 | 22730703 | Good | Philips Electronics North America Corp | Funai Electric Co Ltd |
| US6687239B1 | 0.284 | Method for dynamic channel allocation in a frequency hopping radio system | GRANT | 2004-02-03 | 2000-05-08 | 24262602 | Good | VTech Telecommunications Ltd | VTech Telecommunications Ltd |
| US7028081B2 | 0.283 | Network-device management apparatus and method recording medium and transmission apparatus | GRANT | 2006-04-11 | 1998-10-21 | 17874680 | Good | Canon Inc | Canon Inc |
| US4751510A | 0.279 | Method and system for controlling a network of modems | GRANT | 1988-06-14 | 1985-04-30 | 8194577 | Good | International Business Machines Corp | Cisco Technology Inc |
| US8295406B1 | 0.279 | Universal platform module for a plurality of communication protocols | GRANT | 2012-10-23 | 1999-08-04 | 47017461 | Good | ParkerVision Inc | ParkerVision Inc |
| US4227152A | 0.279 | Method and device for training an adaptive equalizer by means of an unknown data signal in a quadrature amplitude modulation transmission system | GRANT | 1980-10-07 | 1978-06-13 | 9209763 | Good | International Business Machines Corp | International Business Machines Corp |
| US5920598A | 0.274 | Receiving apparatus and receiving method | GRANT | 1999-07-06 | 1997-05-02 | 14644740 | Good | Sony Corp | Sony Corp |
| US6643277B2 | 0.272 | Frequency re-use for point to multipoint applications | GRANT | 2003-11-04 | 2000-06-29 | 25401556 | Good | Harris Broadband Wireless Access Inc | North South Holdings Inc |
| US6954472B2 | 0.271 | Method and device of superimposing an additional information signal on a video signal and detecting said additional information from said video signal | GRANT | 2005-10-11 | 1997-09-02 | 17013014 | Good | Sony Corp | Sony Corp |
| US6044062A | 0.271 | Wireless network system and method for providing same | GRANT | 2000-03-28 | 1996-12-06 | 25060493 | Good | CommUnique LLC | IPCO LLC |
| US5136380A | 0.270 | DISPLAY SIGNAL DEVICE AND METHOD FOR PROVIDING COMPATIBILITY BETWEEN NTSC TELEVISION AND HDTV | GRANT | 1992-08-04 | 1989-12-28 | 19293984 | Good | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| WO2001092901A1 | 0.269 | SPECTRUM MANAGEMENT METHOD FOR A CABLE DATA SYSTEM | APPLICATION | 2001-12-06 | 2000-05-30 | 24322628 | Good | ||
| US5218436A | 0.265 | Processing circuit for a plurality of different TV signals | GRANT | 1993-06-08 | 1990-01-24 | 11813439 | Good | Hitachi Ltd | Hitachi Ltd |
| US4271527A | 0.263 | Double side band-quadrature carrier modulation signal structures | GRANT | 1981-06-02 | 1979-08-31 | 22103235 | Good | Paradyne Corp | Paradyne Corp |
| US4958360A | 0.262 | Circuit for recovering the carrier in digital transmission systems | GRANT | 1990-09-18 | 1987-09-25 | 9355234 | Good | US Philips Corp | US Philips Corp |
| US5299148A | 0.260 | Self-coherence restoring signal extraction and estimation of signal direction of arrival | GRANT | 1994-03-29 | 1988-10-28 | 23005227 | Good | University of California | CALIFORNIA A CORP OF, University of, Regents of, University of California |
| US20020060983A1 | 0.259 | Method for evaluating and configuring orthogonal frequency division multiplexing system having frequency offset | APPLICATION | 2002-05-23 | 2000-10-17 | 19693954 | Good | Gwangju Institute of Science and Technology | Gwangju Institute of Science and Technology |
| US5946374A | 0.258 | Pair gain test unit for use in a combined telephony/video co-axial cable termination unit | GRANT | 1999-08-31 | 1997-12-12 | 25535608 | Good | Alcatel USA Sourcing LP | WSOU Investments LLC |
| US4535352A | 0.258 | Technique for generating semi-compatible high definition television signals for transmission over two cable TV channels | GRANT | 1985-08-13 | 1984-04-16 | 24405123 | Good | AT&T Bell Laboratories Inc | Nokia Bell Labs, AT&T Corp |
| US4956851A | 0.255 | Modem with remote speed-change capability | GRANT | 1990-09-11 | 1988-05-25 | 22733643 | Good | Case Communications Inc | DOWTY COMMUNICATIONS Inc A CORP OF |
| US4945549A | 0.254 | Trellis coded modulation for transmission over fading mobile satellite channel | GRANT | 1990-07-31 | 1986-11-13 | 26937658 | Good | National Aeronautics and Space Administration NASA | National Aeronautics and Space Administration NASA |
| US5412389A | 0.247 | Multibeam position ambiguity resolution | GRANT | 1995-05-02 | 1993-08-11 | 22308873 | Good | Motorola Inc | CDC Propriete Intellectuelle |
| US5933192A | 0.247 | Multi-channel digital video transmission receiver with improved channel-changing response | GRANT | 1999-08-03 | 1997-06-18 | 25371020 | Good | Hughes Electronics Corp | DirecTV Group Inc |
| US6021165A | 0.246 | Digital Broadcast receiver and method of tuning control | GRANT | 2000-02-01 | 1996-02-09 | 12127623 | Good | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US5586149A | 0.244 | Interference dependent adaptive phase clock controller | GRANT | 1996-12-17 | 1994-12-07 | 23382698 | Good | Motorola Inc | Continental Automotive Systems Inc |
| US8175188B2 | 0.243 | Reduced complexity multicarrier precoder | GRANT | 2012-05-08 | 1999-04-06 | 23100175 | Good | RPX Corp | RPX Corp |
| US9800538B2 | 0.242 | Communication service | GRANT | 2017-10-24 | 2000-08-02 | 8558844 | Good | Conversant Wireless Licensing SARL | Conversant Wireless Licensing SARL, 2011 Intellectual Property Asset Trust |
| US5132989A | 0.241 | METHOD OF TRANSMITTING A SEQUENCE OF M BINARY WORDS OF "P" BITS AND TRANSMISSION ARRANGEMENT IMPLEMENTING THIS METHOD | GRANT | 1992-07-21 | 1989-10-27 | 9386866 | Good | US Philips Corp | US Philips Corp |
| US6553004B1 | 0.241 | Method and device to reduce the peak factor of digital radio or television broadcasting signals | GRANT | 2003-04-22 | 1997-11-14 | 9513392 | Good | Harris Corp | Gatesair Inc |
| US4903324A | 0.240 | Ring around transceiver | GRANT | 1990-02-20 | 1988-02-01 | 22535013 | Good | Colin Electronics Co Ltd | Omron Healthcare Co Ltd, Southwest Research Institute SwRI |
| US7346133B2 | 0.239 | Automated frequency compensation for remote synchronization | GRANT | 2008-03-18 | 2000-01-20 | 33435285 | Good | Harris Corp | North South Holdings Inc |
| US4597090A | 0.239 | Block coded modulation system | GRANT | 1986-06-24 | 1983-04-14 | 23926814 | Good | Codex Corp | Motorola Solutions Inc |
| US5638112A | 0.238 | Hybrid analog/digital STB | GRANT | 1997-06-10 | 1995-08-07 | 24034458 | Good | Zenith Electronics LLC | Zenith Electronics LLC |
| US5123008A | 0.236 | SINGLE FREQUENCY TIME DIVISION DUPLEX TRANSCEIVER | GRANT | 1992-06-16 | 1988-03-16 | 10633506 | Good | Shaye Communications Ltd | Shaye Communications Ltd, Avaya Inc |
| US7907577B2 | 0.235 | Communication network providing wireless and hard-wired dynamic routing | GRANT | 2011-03-15 | 1991-10-01 | 27568147 | Good | Broadcom Corp | Avago Technologies International Sales Pte Ltd |
| US4751478A | 0.232 | Multilevel modulator capable of producing a composite modulated signal comprising a quadrature amplitude modulated component and a phase modulated component | GRANT | 1988-06-14 | 1986-02-08 | 26339044 | Good | NEC Corp | NEC Corp |
| US6909741B1 | 0.229 | Network quality of service localizer | GRANT | 2005-06-21 | 1999-12-22 | 34656873 | Good | Motorola Inc | Google Technology Holdings LLC |
| US20040160902A1 | 0.227 | Link adaptation algorithm for packet based radio system | APPLICATION | 2004-08-19 | 1999-12-14 | 23832768 | Good | Nokia Mobile Phones Ltd | Nokia Mobile Phones Ltd |
| US6473597B1 | 0.227 | Method and apparatus for modeling transmitter bandwidth for telecommunications analysis | GRANT | 2002-10-29 | 2000-04-12 | 24185324 | Good | Analytical Graphics Inc | Analytical Graphics Inc |
| US4940954A | 0.226 | Unbalanced quadrature PSK modulator-limiter | GRANT | 1990-07-10 | 1988-04-12 | 22660680 | Good | General Electric Co | Lockheed Martin Corp |
| US4048572A | 0.225 | ADAPTIVE CORRECTION OF PHASE ERRORS IN NONCOHERENT DEMODULATION OF CARRIER ASYMMETRICALLY MODULATED WITH DIGITAL SIGNALS | GRANT | 1977-09-13 | 1975-12-18 | 11313464 | Good | CSELT Centro Studi e Laboratori Telecomunicazioni SpA | CSELT Centro Studi e Laboratori Telecomunicazioni SpA |
| US7693502B2 | 0.225 | Method and system for down-converting an electromagnetic signal transforms for same and aperture relationships | GRANT | 2010-04-06 | 1998-10-21 | 22642661 | Good | ParkerVision Inc | ParkerVision Inc |
| US4756023A | 0.225 | Diversity reception radio receiver | GRANT | 1988-07-05 | 1985-07-22 | 15760246 | Good | NEC Corp | NEC Corp |
| US4873701A | 0.224 | Modem and method for 8 dimensional trellis code modulation | GRANT | 1989-10-10 | 1987-09-16 | 22263407 | Good | PENRIL CORP | ACCESS BEYOND Inc |
| US5054036A | 0.223 | DIGITAL SIGNAL CODING | GRANT | 1991-10-01 | 1986-12-01 | 10608232 | Good | British Telecommunications PLC | British Telecommunications PLC |
| US4991172A | 0.219 | Design of a high speed packet switching node | GRANT | 1991-02-05 | 1988-10-28 | 23005920 | Good | International Business Machines Corp | International Business Machines Corp |
| US6442383B1 | 0.219 | Demodulator and digital wireless communication receiver | GRANT | 2002-08-27 | 1998-03-27 | 13759022 | Good | NEC Corp | NEC Corp |
| US4914676A | 0.218 | Cross polarization interference canceller | GRANT | 1990-04-03 | 1987-09-18 | 16940051 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US6173230B1 | 0.216 | Data link system between an aircraft and the ground and procedure for recovering from a failure | GRANT | 2001-01-09 | 1997-04-10 | 9505748 | Good | Airbus Group SAS | Airbus Operations SAS, Airbus Group SAS |
| US5146335A | 0.211 | Simultaneous multi-aspect ratio television display | GRANT | 1992-09-08 | 1989-12-21 | 19293570 | Good | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US7061542B1 | 0.210 | Television receiving method and television receiver | GRANT | 2006-06-13 | 1999-10-29 | 17994411 | Good | Sanyo Electric Co Ltd | Sanyo Electric Co Ltd |
| US4003002A | 0.209 | Modulation and filtering device | GRANT | 1977-01-11 | 1974-09-12 | 19822081 | Good | US Philips Corp | US Philips Corp |
| US4035728A | 0.191 | Diversity receiving system | GRANT | 1977-07-12 | 1975-01-09 | 11601453 | Good | Nippon Electric Co Ltd | NEC Corp |
| US5535440A | 0.184 | FM receiver anti-fading method and system | GRANT | 1996-07-09 | 1990-10-11 | 24383107 | Good | ||
| US5754601A | 0.180 | Jitter circuit for reduced switching noise | GRANT | 1998-05-19 | 1996-05-10 | 24586232 | Good | Rockwell International Corp | Skyworks Solutions Inc, Washington Sub Inc |
| US6279137B1 | 0.175 | System and method for a storage-efficient parallel Chien Search | GRANT | 2001-08-21 | 1998-12-08 | 22771064 | Good | LSI Logic Corp | Avago Technologies International Sales Pte Ltd |
| US7260627B2 | 0.171 | Real time mesh measurement system stream latency and jitter measurements | GRANT | 2007-08-21 | 2000-02-18 | 22673958 | Good | Infrastructure Innovations LLC | Infrastructure Innovations LLC |
| US7319667B1 | 0.162 | Communication system with priority data compression | GRANT | 2008-01-15 | 2000-11-15 | 38921048 | Good | Cisco Technology Inc | Cisco Technology Inc |
| US6181929B1 | 0.146 | Method for switching cell site controllers | GRANT | 2001-01-30 | 1996-05-20 | 26690590 | Good | Motorola Inc | Google Technology Holdings LLC |
| US4769819A | 0.146 | Two stage coding method | GRANT | 1988-09-06 | 1984-12-26 | 17621187 | Good | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US6069894A | 0.111 | Enhancement of network operation and performance | GRANT | 2000-05-30 | 1995-06-12 | 20397369 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US3824548A | NR | SATELLITE COMMUNICATIONS LINK MONITOR | GRANT | 1974-07-16 | 1973-01-15 | 23259448 | Good | US Department of Navy | US Department of Navy |
| US3534264A | NR | ADAPTIVE DIGITAL COMMUNICATION SYSTEM | GRANT | 1970-10-13 | 1966-04-15 | 27067183 | Good | International Business Machines Corp | International Business Machines Corp |
| JPS60224342A | NR | FRAME SYNCHRONIZING CIRCUIT | GRANT | 1985-11-08 | 1984-04-23 | 13751029 | Good | ||
| JPS58131842A | NR | SYNCHRONISM SYSTEM BY SATELLITE | GRANT | 1983-08-05 | 1982-02-01 | 11827085 | Good | ||
| JPS55135450A | NR | SYNCHRONOUS SIGNAL FORMATION FOR DIGITAL TRANSMISSION SIGNAL | GRANT | 1980-10-22 | 1979-04-10 | 12676069 | Good | ||
| JPS55132157A | NR | FRAME-SYNCHRONOUS PATTERN DETECTING CIRCUIT | GRANT | 1980-10-14 | 1979-03-31 | 12505016 | Good | ||
| JPS54115014A | NR | PROTECTION SYSTEM FOR FRAME SYNCHRONISM | GRANT | 1979-09-07 | 1978-02-28 | 12100188 | Good | ||
| JPS5215201A | NR | INTER-OFFICE SYNCHRONIZING SYSTEM | GRANT | 1977-02-04 | 1975-07-28 | 14034414 | Good | ||
| JPH0823568A | NR | RADIO FRAME SYNCHRONIZING SYSTEM | GRANT | 1996-01-23 | 1994-07-08 | 15645860 | Good | ||
| JPH08107431A | NR | DEMODULATOR | GRANT | 1996-04-23 | 1994-10-05 | 17078121 | Good | ||
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| JP4751986B2 | NR | No title | GRANT | 2011-08-17 | 1999-01-20 | 22880748 | Good | ||
| JP2009118533A | NR | BURST CARRIER FREQUENCY SYNCHRONIZATION AND ITERATIVE FREQUENCY-DOMAIN FRAME SYNCHRONIZATION FOR OFDM | APPLICATION | 2009-05-28 | 1998-06-08 | 26778658 | Good | ||
| JP2004523934A | NR | No title | APPLICATION | 2004-08-05 | 2000-10-10 | 24754410 | Good | ||
| JP2003533939A | NR | No title | APPLICATION | 2003-11-11 | 2000-05-19 | 24298327 | Good | ||
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| GB2271693A | NR | Communications system having pilot signals transmitted over frequency divided channels | GRANT | 1994-04-20 | 1992-10-13 | 10723357 | Good | Motorola Israel Ltd | Motorola Solutions Israel Ltd |
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| AU701160B1 | NR | Equalizing method and equalizer for OFDM receiver | GRANT | 1999-01-21 | 1997-08-20 | 19517923 | Good | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US5912644A | 0.653 | Spread spectrum position determination ranging and communication system | GRANT | 1999-06-15 | 1997-08-05 | 25421921 | Fair | FASTRACK INFORMATION Inc | FASTRACK INFORMATION Inc |
| US3774215A | 0.640 | POSITION LOCATING SYSTEM | GRANT | 1973-11-20 | 1970-11-23 | 22230860 | Fair | GEN SYSTEMS DEV CORP | GEN SYSTEMS DEV CORP, GENERAL SYSTEMS DEV CORP US |
| US4267592A | 0.607 | Anti-jam radio | GRANT | 1981-05-12 | 1979-03-30 | 21826598 | Fair | Rockwell International Corp | Boeing North American Inc |
| US7164916B1 | 0.547 | Method for quality measurement in a mobile telecommunications system | GRANT | 2007-01-16 | 1999-09-06 | 10860419 | Fair | Nokia Oyj | WSOU Investments LLC |
| US5282226A | 0.540 | System and method for transmission of bursts of digital information | GRANT | 1994-01-25 | 1992-04-27 | 25363787 | Fair | Hughes Aircraft Co | DirecTV Group Inc |
| US5677841A | 0.533 | Control target surveillance system | GRANT | 1997-10-14 | 1994-03-11 | 27521710 | Fair | Toshiba Corp, Director General Ship Res Inst Ministry of Transport | DIRECTOR-GENERAL SHIP RESEARCH INSTITUTE MINISTRY OF TRANSPORT, Toshiba Corp, Director General Ship Res Inst Ministry of Transport |
| US6625227B1 | 0.531 | Artificial ramping of transmit power for burst transmissions | GRANT | 2003-09-23 | 1999-09-30 | 23620789 | Fair | Ericsson Inc | Unwired Planet LLC |
| US5621763A | 0.508 | Apparatus and method for generating a transition between the on and off states of a radio frequency transmitter | GRANT | 1997-04-15 | 1991-07-22 | 24947839 | Fair | Motorola Inc | Google Technology Holdings LLC |
| US5450329A | 0.483 | Vehicle location method and system | GRANT | 1995-09-12 | 1993-12-22 | 22652395 | Fair | ||
| EP0574009A2 | 0.458 | DGPS positioning method DGPS reference station and DGPS positioning apparatus for moving object | GRANT | 1993-12-15 | 1992-06-12 | 26379847 | Fair | Tokyo Cosmos Electric Co Ltd | Tokyo Cosmos Electric Co Ltd |
| EP0444738A2 | 0.457 | Vehicle location system | GRANT | 1991-09-04 | 1990-02-28 | 10671717 | Fair | Philips Electronics UK Ltd, Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV | Philips Electronics UK Ltd, Koninklijke Philips NV |
| US5512908A | 0.421 | Apparatus and method for locating cellular telephones | GRANT | 1996-04-30 | 1994-07-08 | 23041000 | Fair | Lockheed Sanders Inc | Lockheed Martin Corp, Crown Castle Trans OC Corp, Commscope Connectivity LLC |
| WO1993001576A1 | 0.418 | A POSITION INDICATING SYSTEM | APPLICATION | 1993-01-21 | 1991-07-01 | 27355635 | Fair | ||
| US5913170A | 0.413 | Locating system and method using a mobile communications network | GRANT | 1999-06-15 | 1994-11-16 | 23334798 | Fair | HighwayMaster Communications Inc | Benhov GmbH LLC |
| US7324511B2 | 0.412 | Device method and system for transferring frame | GRANT | 2008-01-29 | 2000-08-10 | 18734151 | Fair | NEC Corp | NEC Corp |
| US6731946B1 | 0.411 | System and method for timing detector measurements in a wireless communication system | GRANT | 2004-05-04 | 2000-11-22 | 32177015 | Fair | Ensemble Communications Inc | Zarbana Digital Fund LLC |
| US6317603B1 | 0.389 | Long baseline RTK using a secondary base receiver and a non-continuous data link | GRANT | 2001-11-13 | 1999-05-21 | 23228882 | Fair | Trimble Navigation Ltd | Trimble Inc |
| US5038402A | 0.379 | Apparatus and method for providing digital audio in the FM broadcast band | GRANT | 1991-08-06 | 1988-12-06 | 23074562 | Fair | General Instrument Corp | Arris Technology Inc |
| US20030055562A1 | 0.375 | GLOBAL POSITIONING SYSTEM ROADSIDE INTEGRATED PRECISION POSITIONING SYSTEM | APPLICATION | 2003-03-20 | 2000-01-05 | 22635916 | Fair | Johns Hopkins University | Johns Hopkins University |
| US6944212B2 | 0.351 | Method and apparatus for the spectrally efficient encoding and decoding of discrete data into and from analog waveforms | GRANT | 2005-09-13 | 1999-12-02 | 26864445 | Fair | ||
| US6049754A | 0.350 | Method for displaying vehicle arrival management information | GRANT | 2000-04-11 | 1998-03-31 | 21965438 | Fair | Mitre Corp | Mitre Corp |
| US5430656A | 0.350 | Mobile communications system | GRANT | 1995-07-04 | 1992-09-08 | 11064016 | Fair | Rav Bariach Security Products Ltd | Rav Bariach Security Products Ltd |
| US6138190A | 0.347 | Analog front end and digital signal processing device and method | GRANT | 2000-10-24 | 1997-09-16 | 25461344 | Fair | Cirrus Logic Inc | Intel Corp |
| US5148422A | 0.346 | OPTICAL RECORDING MEDIUM HAVING A DATA RECORDING TRACK WITH OFFSET DATA STORING REGIONS | GRANT | 1992-09-15 | 1989-08-25 | 27330272 | Fair | Sony Corp | Sony Corp |
| US4814711A | 0.346 | Survey system and method for real time collection and processing of geophysicals data using signals from a global positioning satellite network | GRANT | 1989-03-21 | 1984-04-05 | 26728894 | Fair | Deseret Research Inc | Deseret Research Inc |
| US6201469B1 | 0.345 | Wireless synchronization of pulsed magnetic EAS systems | GRANT | 2001-03-13 | 1999-02-12 | 22946172 | Fair | Sensormatic Electronics Corp | Sensormatic Electronics LLC |
| US4677625A | 0.343 | Distributed trellis encoder | GRANT | 1987-06-30 | 1985-03-01 | 24840291 | Fair | Paradyne Corp | REMBRANDT TECHNOLOGIES LP |
| US5276507A | 0.343 | Multiplex TV signal processing apparatus | GRANT | 1994-01-04 | 1990-03-23 | 13526822 | Fair | Panasonic Corp | Panasonic Corp |
| US5018198A | 0.340 | Speech privacy processing method and apparatus therefor | GRANT | 1991-05-21 | 1989-01-20 | 11730757 | Fair | Canon Inc | Canon Inc |
| US4797898A | 0.337 | Method and apparatus for equalization of data transmission system | GRANT | 1989-01-10 | 1986-11-21 | 25464306 | Fair | Racal Data Communications Inc | Intel Corp |
| US4581639A | 0.336 | Method and apparatus for monitoring suitability of a transmission path for transmission of digital data signals | GRANT | 1986-04-08 | 1983-10-17 | 24165648 | Fair | Tektronix Inc | Tektronix Inc |
| US6940561B1 | 0.319 | Automatic modulation and RF carrier level control of sync suppressed television signals | GRANT | 2005-09-06 | 1997-12-05 | 25531494 | Fair | General Instrument Corp | Arris Enterprises LLC |
| US5134635A | 0.315 | Convolutional decoder using soft-decision decoding with channel state information | GRANT | 1992-07-28 | 1990-07-30 | 24238215 | Fair | Motorola Inc | Motorola Solutions Inc |
| US5038219A | 0.315 | Video signal recording apparatus | GRANT | 1991-08-06 | 1989-10-31 | 17673799 | Fair | Sony Corp | Sony Corp |
| US8446321B2 | 0.311 | Deployable intelligence and tracking system for homeland security and search and rescue | GRANT | 2013-05-21 | 1999-03-05 | 39205170 | Fair | Omnipol AS | ERA AS |
| US5568205A | 0.303 | Camera mounted wireless audio/video transmitter system | GRANT | 1996-10-22 | 1993-07-26 | 22265153 | Fair | Telex Communications Inc | TRANSVIDEO SYSTEMS Inc, Bosch Security Systems Inc, Telex Communications Holdings Inc |
| US5142353A | 0.296 | Television signal processing apparatus | GRANT | 1992-08-25 | 1987-12-23 | 27480361 | Fair | Panasonic Corp | Panasonic Corp |
| US4309726A | 0.291 | Muting circuit in a PCM recording and reproducing apparatus | GRANT | 1982-01-05 | 1979-05-28 | 26381670 | Fair | Hitachi Ltd | Hitachi Ltd |
| US20040225432A1 | 0.291 | Method and system for the navigation and control of vehicles at an airport and in the surrounding airspace | APPLICATION | 2004-11-11 | 1991-02-25 | 26815797 | Fair | ROBERT PILLEY H | ROBERT PILLEY H |
| US20030068974A1 | 0.289 | Method and apparatus for delivering personalized and location sensitive information to a user device | APPLICATION | 2003-04-10 | 2000-05-11 | 26898577 | Fair | Sarnoff Corp | Sarnoff Corp |
| US6026129A | 0.288 | Radio receiving apparatus for receiving communication signals of different bandwidths | GRANT | 2000-02-15 | 1996-03-27 | 26366330 | Fair | Panasonic Corp | Panasonic Corp |
| US7123649B1 | 0.287 | Outdoor unit programming system | GRANT | 2006-10-17 | 2000-11-03 | 37085983 | Fair | Harington Valve LLC | Zarbana Digital Fund LLC |
| US5574648A | 0.283 | Airport control/management system using GNSS-based methods and equipment for the control of surface and airborne traffic | GRANT | 1996-11-12 | 1990-10-09 | 27416656 | Fair | Honeywell Intellectual Properties Inc | Honeywell Intellectual Properties Inc |
| US7027592B1 | 0.282 | Non-linear echo cancellation in discrete multi-tone systems | GRANT | 2006-04-11 | 1999-03-01 | 7899261 | Fair | Infineon Technologies AG | Intel Germany Holding GmbH |
| US7782256B2 | 0.281 | Enhanced passive coherent location techniques to track and identify UAVs UCAVs MAVs and other objects | GRANT | 2010-08-24 | 1999-03-05 | 39768825 | Fair | ERA Systems Corp | ERA AS |
| US20030096622A1 | 0.281 | Locating a wireless station | APPLICATION | 2003-05-22 | 2000-03-15 | 9887710 | Fair | Nokia Oyj | Nokia Oyj |
| US5307066A | 0.277 | Microprocessor controlled converter having reduced noise interference and method of operating same | GRANT | 1994-04-26 | 1990-06-11 | 15526872 | Fair | Oki Electric Industry Co Ltd | Lapis Semiconductor Co Ltd |
| US5063452A | 0.274 | MAGNETIC RECORDING AND/OR REPRODUCING APPARATUS HAVING MEANS FOR PREVENTING AUDIO-TO-VIDEO CROSSTALK AND NOISE GENERATION | GRANT | 1991-11-05 | 1987-01-27 | 26353155 | Fair | Victor Company of Japan Ltd | Victor Company of Japan Ltd |
| US7777675B2 | 0.273 | Deployable passive broadband aircraft tracking | GRANT | 2010-08-17 | 1999-03-05 | 38926372 | Fair | ERA Systems Corp | ERA AS |
| US5649160A | 0.272 | Noise reduction in integrated circuits and circuit assemblies | GRANT | 1997-07-15 | 1995-05-23 | 23776843 | Fair | Microunity Systems Engineering Inc | Microunity Systems Engineering Inc |
| US7822401B2 | 0.269 | Apparatus and method for down-converting electromagnetic signals by controlled charging and discharging of a capacitor | GRANT | 2010-10-26 | 2000-04-14 | 34528353 | Fair | ParkerVision Inc | ParkerVision Inc |
| US5218622A | 0.267 | SYSTEM OF ENCODING DIGITAL SIGNALS INTENDED FOR TRANSMISSION AND/OR STORAGE AND A CORRESPONDING DECODING SYSTEM | GRANT | 1993-06-08 | 1989-12-29 | 27252097 | Fair | US Philips Corp | US Philips Corp |
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| US20090228289A1 | 0.262 | Audio signal processing apparatus | APPLICATION | 2009-09-10 | 1998-11-16 | 18353067 | Fair | Victor Company of Japan Ltd | JVCKenwood Corp |
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| US6038434A | 0.258 | Method of and apparatus for receiving and displaying RDS data | GRANT | 2000-03-14 | 1994-05-19 | 14404311 | Fair | Pioneer Electronic Corp | Pioneer Corp |
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| US5124852A | 0.251 | MAGNETIC TAPE RECORDING APPARATUS | GRANT | 1992-06-23 | 1989-11-10 | 26559045 | Fair | Victor Company of Japan Ltd | Victor Company of Japan Ltd |
| US6885851B1 | 0.248 | Automatic gain control circuit and receiver device having the automatic gain control circuit and automatic gain control method | GRANT | 2005-04-26 | 1999-03-18 | 13533679 | Fair | Panasonic Corp | Panasonic Corp |
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| US5400084A | 0.236 | Method and apparatus for NTSC signal interference cancellation using recursive digital notch filters | GRANT | 1995-03-21 | 1992-05-14 | 46248059 | Fair | Hitachi America Ltd | Hitachi America Ltd |
| US4961184A | 0.235 | Integrate and hold amplifier | GRANT | 1990-10-02 | 1989-01-31 | 23176906 | Fair | AT&E Corp | A T & E Corp A DE CORP, Seiko Instruments Inc, Cufer Asset Ltd LLC |
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| US5581177A | 0.227 | Shaping ATE bursts particularly in gallium arsenide | GRANT | 1996-12-03 | 1993-07-01 | 22199005 | Fair | Teradyne Inc | Teradyne Inc |
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| US7865177B2 | 0.226 | Method and system for down-converting an electromagnetic signal and transforms for same and aperture relationships | GRANT | 2011-01-04 | 1998-10-21 | 40512795 | Fair | ParkerVision Inc | ParkerVision Inc |
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| US4882712A | 0.219 | Synchronous semiconductor memory device | GRANT | 1989-11-21 | 1987-09-29 | 17122561 | Fair | Fujitsu VLSI Ltd, Fujitsu Ltd | Fujitsu VLSI Ltd, Fujitsu Ltd |
| US5373293A | 0.217 | Mixed analog/digital mixed integrated circuit having a digital clock inhibit | GRANT | 1994-12-13 | 1991-04-30 | 14230024 | Fair | Toshiba Corp | Toshiba Corp |
| US4564858A | 0.212 | Television SAW/VSB filter incorporating receiver equalizer | GRANT | 1986-01-14 | 1981-03-31 | 27002224 | Fair | Harris Corp | Harris Corp |
| US4544914A | 0.207 | Asynchronously controllable successive approximation analog-to-digital converter | GRANT | 1985-10-01 | 1979-12-17 | 26801242 | Fair | TRW Inc | Raytheon Co, TRW LSI Products Inc |
| US5706004A | 0.206 | System for reducing noise coupling between digital and analog circuitry | GRANT | 1998-01-06 | 1995-09-18 | 24111780 | Fair | Phylon Communications Inc | PHYLON COMMUNICATIONS, Phylon Communications Inc |
| US4746899A | 0.206 | Method for reducing effects of electrical noise in an analog-to-digital converter | GRANT | 1988-05-24 | 1986-10-07 | 25436793 | Fair | Crystal Semiconductor Corp | TECHNOLOGY FUNDING SECURED INVESTORS A CA LP, Cirrus Logic Inc |
| US7889133B2 | 0.204 | Multilateration enhancements for noise and operations management | GRANT | 2011-02-15 | 1999-03-05 | 46332122 | Fair | ITT Manufacturing Enterprises LLC | Harris Corp, ITT Manufacturing Enterprises LLC |
| US6043756A | 0.202 | Aircraft weather information system | GRANT | 2000-03-28 | 1998-02-09 | 26755209 | Fair | AlliedSignal Inc | Honeywell International Inc |
| US5675337A | 0.191 | Analog-to-digital converting device | GRANT | 1997-10-07 | 1995-06-22 | 15617079 | Fair | Renesas Design Corp, Mitsubishi Electric Corp | Renesas Design Corp, Mitsubishi Electric Corp |
| US5764074A | 0.189 | System for and method of minimizing noise in an integrated circuit chip | GRANT | 1998-06-09 | 1994-11-10 | 23323024 | Fair | Brooktree Corp | Brooktree Broadband Holding Inc |
| US5684795A | 0.187 | Method and apparatus for controlling a fractional-N synthesizer in a time division multiple access system | GRANT | 1997-11-04 | 1996-01-30 | 24377511 | Fair | Motorola Inc | Quarterhill Inc |
| US5426392A | 0.186 | Spread clock source for reducing electromagnetic interference generated by digital circuits | GRANT | 1995-06-20 | 1993-08-27 | 22343705 | Fair | Qualcomm Inc | Qualcomm Inc |
| US7991815B2 | 0.185 | Methods systems and computer program products for parallel correlation and applications thereof | GRANT | 2011-08-02 | 2000-11-14 | 46150374 | Fair | ParkerVision Inc | ParkerVision Inc |
| US5719572A | 0.182 | Digital signal processor with reduced pattern dependent noise | GRANT | 1998-02-17 | 1994-07-08 | 23044090 | Fair | Cirrus Logic Inc | Cirrus Logic Inc |
| US6469660B1 | 0.182 | Method and system for displaying target icons correlated to target data integrity | GRANT | 2002-10-22 | 2000-04-13 | 27396397 | Fair | United Parcel Service of America Inc | Garmin AT Inc, United Parcel Service Inc |
| US3868497A | 0.174 | TERMINAL AIRWAYS TRAFFIC CONTROL SYSTEM | GRANT | 1975-02-25 | 1971-05-03 | 26837136 | Fair | ||
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| US5640161A | 0.165 | Silent data conversion system with sampling during electrical silence | GRANT | 1997-06-17 | 1991-05-29 | 24840241 | Fair | Pacific Microsonics Inc | Microsoft Technology Licensing LLC |
| US7739167B2 | 0.150 | Automated management of airport revenues | GRANT | 2010-06-15 | 1999-03-05 | 36241009 | Fair | ERA Systems Corp | SRA International Inc |
| US6826458B2 | 0.149 | Graphic closure indicator for cockpit traffic display | GRANT | 2004-11-30 | 2000-10-25 | 22917895 | Fair | Garmin AT Inc | Garmin AT Inc |
| US4667311A | 0.144 | Dynamic ram with reduced substrate noise and equal access and cycle time | GRANT | 1987-05-19 | 1984-02-07 | 27106322 | Fair | VISIC Inc | POONJA MOHAMED AS TRUSTEE UNDER VISIC Inc LIQUIDATING TRUST AGREEMENT DATED DECEMBER 18 1990, AT&T Corp |
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| US5065157A | 0.138 | HIGH ORDER SIGMA DELTA OVERSAMPLED ANALOG-TO-DIGITAL CONVERTER INTEGRATED CIRCUIT NETWORK WITH MINIMAL POWER DISSIPATION AND CHIP AREA REQUIREMENTS | GRANT | 1991-11-12 | 1990-04-06 | 24010094 | Fair | General Electric Co | General Electric Co |
| US5047665A | 0.137 | Low noise low offset high speed CMOS differential amplifier | GRANT | 1991-09-10 | 1989-02-08 | 26976116 | Fair | Burr Brown Corp | Texas Instruments Tucson Corp |
| US5422807A | 0.137 | Microcontroller with improved A/D conversion | GRANT | 1995-06-06 | 1992-08-31 | 25472183 | Fair | Microchip Technology Inc | Microchip Technology Inc |
| US5317183A | 0.135 | Substrate noise coupling reduction for VLSI applications with mixed analog and digital circuitry | GRANT | 1994-05-31 | 1991-09-03 | 25034971 | Fair | International Business Machines Corp | International Business Machines Corp |
| US5747982A | 0.135 | Multi-chip modules with isolated coupling between modules | GRANT | 1998-05-05 | 1996-12-05 | 25060952 | Fair | Nokia of America Corp | Bell Semiconductor LLC |
| US5604500A | 0.134 | A/D conversion process | GRANT | 1997-02-18 | 1993-06-10 | 15230431 | Fair | NipponDenso Co Ltd | Denso Corp |
| US5200983A | 0.130 | Fiso analog signal acquisition system employing CCD array storage | GRANT | 1993-04-06 | 1992-04-17 | 25271964 | Fair | Tektronix Inc | Techsearch LLC |
| US5093781A | 0.129 | CELLULAR NETWORK ASSIGNMENT PROCESSOR USING MINIMUM/MAXIMUM CONVERGENCE TECHNIQUE | GRANT | 1992-03-03 | 1988-10-07 | 22969486 | Fair | Hughes Aircraft Co | DirecTV Group Inc, Raytheon Co |
| US5294928A | 0.121 | A/D converter with zero power mode | GRANT | 1994-03-15 | 1992-08-31 | 25472185 | Fair | Microchip Technology Inc | Microchip Technology Inc |
| US6268614B1 | 0.119 | Electrostatic recording member electrostatic latent image recording apparatus and electrostatic latent image read-out apparatus | GRANT | 2001-07-31 | 1997-08-19 | 26520846 | Fair | Fuji Photo Film Co Ltd | Fujifilm Holdings Corp, Fujifilm Corp |
| US4845629A | 0.112 | Airport surveillance systems | GRANT | 1989-07-04 | 1985-07-18 | 26156112 | Fair | GENERAL DE INVESTIGACION Y DESARROLLO SA | GENERAL DE INVESTIGACION Y DESARROLLO SA |
| US5594279A | 0.109 | Semiconductor device having shield wiring for noise suppression | GRANT | 1997-01-14 | 1992-11-12 | 18197179 | Fair | Hitachi Ltd, Texas Instruments Inc | Hitachi Ltd, Texas Instruments Inc |
| US4271488A | 0.103 | High-speed acquisition system employing an analog memory matrix | GRANT | 1981-06-02 | 1979-04-13 | 21850980 | Fair | Tektronix Inc | Tektronix Inc |
| US5475255A | 0.096 | Circuit die having improved substrate noise isolation | GRANT | 1995-12-12 | 1994-06-30 | 23024281 | Fair | Motorola Inc | NXP USA Inc |
| US5640047A | 0.093 | Ball grid assembly type semiconductor device having a heat diffusion function and an electric and magnetic shielding function | GRANT | 1997-06-17 | 1995-09-25 | 17504909 | Fair | Mitsui High Tech Inc | Mitsui High Tech Inc |
| US5623159A | 0.086 | Integrated circuit isolation structure for suppressing high-frequency cross-talk | GRANT | 1997-04-22 | 1994-10-03 | 23232019 | Fair | Motorola Inc | NXP USA Inc |
| US5485029A | 0.080 | On-chip ground plane for semiconductor devices to reduce parasitic signal propagation | GRANT | 1996-01-16 | 1994-06-30 | 23022588 | Fair | International Business Machines Corp | International Business Machines Corp |
| US5767561A | 0.078 | Integrated circuit device with isolated circuit elements | GRANT | 1998-06-16 | 1997-05-09 | 25316424 | Fair | Nokia of America Corp | Nokia of America Corp, Bell Semiconductor LLC |
| US6498981B1 | 0.062 | System for sequencing traffic | GRANT | 2002-12-24 | 1999-12-30 | 23889697 | Fair | Honeywell International Inc | Honeywell International Inc |
| US5955353A | 0.043 | Hollow fiber bioreactor with an extrafilament flow plug | GRANT | 1999-09-21 | 1997-05-22 | 25335987 | Fair | Excorp Medical Inc | EXCOORP MEDICAL Inc, Excorp Medical Inc |
| US5649166A | 0.041 | Dominator selection method for reducing power consumption in a circuit | GRANT | 1997-07-15 | 1995-04-24 | 23693292 | Fair | Cadence Design Systems Inc | Cadence Design Systems Inc |
| JPS62241448A | NR | DATA TRANSMISSION SYSTEM | GRANT | 1987-10-22 | 1986-03-19 | 13180835 | Fair | ||
| JPH11113049A | NR | RADIO COMMUNICATION SYSTEM | GRANT | 1999-04-23 | 1997-09-30 | 17419015 | Fair | ||
| JPH10336142A | NR | RECEIVER FOR DIGITAL AUDIO BROADCAST | GRANT | 1998-12-18 | 1997-06-02 | 15355188 | Fair | ||
| JPH10190610A | NR | RECEIVER OF MULTICARRIER SYSTEM | GRANT | 1998-07-21 | 1996-12-24 | 18366892 | Fair | ||
| JPH10117178A | NR | OFDM(ORTHOGONAL FREQUENCY DIVISION MULTIPLEX) DEMODULATOR | GRANT | 1998-05-06 | 1996-08-23 | 26524981 | Fair | ||
| JPH08265312A | NR | SYNCHRONIZATION CONTROL SYSTEM | GRANT | 1996-10-11 | 1995-03-20 | 13168027 | Fair | ||
| JPH0799486A | NR | OFDM RECEPTION SYNCHRONIZING CIRCUIT | GRANT | 1995-04-11 | 1993-09-28 | 17078043 | Fair | ||
| JPH0653918A | NR | IDLE CHANNEL DETECTING CIRCUIT AND METHOD FOR TIME-DIVISION MULTIPLEX CONNECTING COMMUNICATION | GRANT | 1994-02-25 | 1992-07-29 | 16444715 | Fair | ||
| JPH06204925A | NR | DIVERSITY RECEIVER | GRANT | 1994-07-22 | 1992-11-16 | 26361938 | Fair | ||
| JPH05308334A | NR | FRAME SYNCHRONIZATION SYSTEM OF TDMA SYSTEM RADIO BASE STATION | GRANT | 1993-11-19 | 1992-04-28 | 15126773 | Fair | ||
| JPH0348533A | NR | DIGITAL RADIO RECEIVER | GRANT | 1991-03-01 | 1989-07-17 | 16123338 | Fair | ||
| JPH03224325A | NR | TDMA DIGITAL MOBILE COMMUNICATION SYSTEM | GRANT | 1991-10-03 | 1989-12-27 | 26572716 | Fair | ||
| JPH0265420A | NR | DIVERSITY RECEIVER | GRANT | 1990-03-06 | 1988-08-31 | 16690522 | Fair | ||
| JPH0226135A | NR | MOBILE RADIO EQUIPMENT | GRANT | 1990-01-29 | 1988-07-15 | 16014067 | Fair | ||
| JPH02224428A | NR | INDEPENDENT SYNCHRONOUS REPEATING SYSTEM | GRANT | 1990-09-06 | 1989-02-27 | 12652922 | Fair | ||
| JP2001197142A | NR | DEVICE AND METHOD FOR COMMUNICATION | APPLICATION | 2001-07-19 | 2000-01-14 | 18534293 | Fair | ||
| JP2001197034A | NR | MICROWAVE REPEATING TRANSMISSION SYSTEM FOR GROUND DIGITAL TELEVISION BROADCAST | APPLICATION | 2001-07-19 | 2000-01-17 | 18536437 | Fair | ||
| JP2001156740A | NR | MULTI-CARRIER COMMUNICATION EQUIPMENT AND MULTI-CARRIER COMMUNICATION METHOD | APPLICATION | 2001-06-08 | 1999-11-30 | 18328104 | Fair | ||
| JP2000196560A | NR | DIGITAL COMMUNICATION EQUIPMENT | APPLICATION | 2000-07-14 | 1998-12-28 | 18503304 | Fair | ||
| AU6970400A | NR | FIR filter and ramp-up/-down control circuit using the same | GRANT | 2001-05-10 | 1999-11-04 | 18037881 | Fair | NEC Corp | Lenovo Innovations Ltd Hong Kong |
 |  |
Validity Report Full Report
US10492199B2 — Transmitting apparatus, receiving apparatus, and communication system for formatting data Priority Date: 2000-12-08, Publication Date: 2019-11-26, Current Assignee: Redwood Technologies LLCReport Generated: 2022-01-26