Validity Report
Basic Report
US8990073B2 — Method and device for sound activity detection and sound signal classification
Priority Date: 2007-06-22, Publication Date: 2015-03-24, Current Assignee: VoiceAge EVS LLCReport Generated: 2021-04-01
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Patent Id
Score
Title
Patent Type
Publication Date
Priority Date
Search Efficiency
Original Assignee
Current Assignee
US20050288923A1●●●●●Speech enhancement by noise maskingAPPLICATION2005-12-292004-06-25GreatHong Kong University of Science and Technology HKUSTHong Kong University of Science and Technology HKUST
EP1700294A1●●●●●METHOD AND DEVICE FOR SPEECH ENHANCEMENT IN THE PRESENCE OF BACKGROUND NOISEGRANT2006-09-132003-12-29GreatNokia OyjNokia Oyj
US7873114B2●●●●●Method and apparatus for quickly detecting a presence of abrupt noise and updating a noise estimateGRANT2011-01-182007-03-29GreatMotorola Mobility LLCGoogle Technology Holdings LLC
US20050256705A1●●●●●Noise spectrum estimation method and apparatusAPPLICATION2005-11-172004-03-30GreatWaseda University, Yamaha CorpWaseda University, Yamaha Corp
US7209567B1●●●●●Communication system with adaptive noise suppressionGRANT2007-04-241998-07-09GreatPurdue Research FoundationPurdue Research Foundation
US7058572B1●●●●●Reducing acoustic noise in wireless and landline based telephonyGRANT2006-06-062000-01-28GreatNortel Networks LtdApple Inc
US6298322B1●●●●●Encoding and synthesis of tonal audio signals using dominant sinusoids and a vector-quantized residual tonal signalGRANT2001-10-021999-05-06Great
US5806031A●●●●●Method and recognizer for recognizing tonal acoustic sound signalsGRANT1998-09-081996-04-25GreatMotorola Solutions IncGoogle Technology Holdings LLC
US7158932B1●●●●●Noise suppression apparatusGRANT2007-01-021999-11-10GreatMitsubishi Electric CorpMitsubishi Electric Corp
EP1745468B1●●●●●NOISE REDUCTION FOR AUTOMATIC SPEECH RECOGNITIONGRANT2007-09-122004-05-14GreatLoquendo SpALoquendo SpA
US8520861B2●●●●●Signal processing system for tonal noise robustnessGRANT2013-08-272005-05-17GreatQNX Software Systems LtdBlackBerry Ltd, 8758271 Canada Inc
EP1016073A1●●●●●METHOD FOR SUPPRESSING NOISE IN A DIGITAL SPEECH SIGNALGRANT2000-07-051997-09-18GreatMatra Nortel Communications SASNortel Networks France SAS, EADS Secure Networks SAS
EP2096629A1●●●●●A CLASSING METHOD AND DEVICE FOR SOUND SIGNALGRANT2009-09-022006-12-05GreatHuawei Technologies Co LtdHuawei Technologies Co Ltd
US7359838B2●●●●●Method of processing a noisy sound signal and device for implementing said methodGRANT2008-04-152004-09-16GreatFrance Telecom SAOrange SA
US7428490B2●●●●●Method for spectral subtraction in speech enhancementGRANT2008-09-232003-09-30GreatIntel CorpIntel Corp
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Predictive Analytics

Composite Research Score (1-10)
7
  MODERATE
Art VolumeMEDIUM
Tech ComplexityINTRICATE
Priority DateMID
Tech DiversityAVERAGE
Expert Services Estimate$3,750 — $4,200
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Preview CPC Technology Profile

Possible Classes
182
Recommended Classes
46
Government Assigned Classes
2
CPC
Title
Score
G10L25/78Detection of presence or absence of voice signals | switching of direction of transmission by voice frequency in two-way loud-speaking telephone systems | (ref: H04M9/10)●●●●●
G10L21/0208Noise filtering●●●●●
G10L19/26Pre-filtering or post-filtering●●●●●
G10L19/20using sound class specific coding  hybrid encoders or object based coding●●●●●
G10L19/24Variable rate codecs  e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding●●●●●
G10L19/173Transcoding  i.e. converting between two coded representations avoiding cascaded coding-decoding●●●●●
G10L19/00Speech or audio signals analysis-synthesis techniques for redundancy reduction  e.g. in vocoders| Coding or decoding of speech or audio signals  using source filter models or psychoacoustic analysis | in musical instruments | (ref: G10H)●●●●●
G10L19/005Correction of errors induced by the transmission channel  if related to the coding algorithm●●●●●
G10L19/12the excitation function being a code excitation  e.g. in code excited linear prediction [CELP] vocoders●●●●●
G10L19/083the excitation function being an excitation gain | (ref: G10L25/90)|  takes precedence●●●●●
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