24.12.2014
The history of mobile phones begins with early efforts to develop radio telephone technology and from two-way radios in vehicles and continues through emergence of modern mobile phones and associated services.Radiophones have a long and varied history going back to Reginald Fessenden's invention and shore-to-ship demonstration of radio telephony, through the Second World War with military use of radio telephony links and civil services in the 1950s, while hand-held mobile radio devices have been available since 1973. THIS IS WHITE IPHONE 5C WITH CLEAN ESN (VERIZON) MY WIFE USED IT NOW WE HAVE THE IPHONE 6 SO LOOKING TO SELL IT 516-491-2726 CALL OR TEXT it has minor scars on the back but the front is a perfect mint!! Car reviews – new cars for 2015 and 2016 at car and driver, The ford gt and challenger hellcat prove every car should have holes in its lights.
Fiat chrysler automobiles – wikipedia, the free encyclopedia, This article is about the holding company of fiat group. 2d People For Rendering Furthermore Sars Virus Further House Roof Outline Clip Art As Well As 3d People Working Together Moreover 3d People Challenge. Chinese mobile brands aim IndiaThe slew of unbranded and illegal Chinese phones doing the rounds in the grey markets of India has been a concern for the Government for quite some time now. 2015 cadillac elr base coupe ratings, prices, trims, Research the 2015 cadillac elr base coupe.
Peugeot – wikipedia, the free encyclopedia, Peugeot is a french car brand, part of psa peugeot citroen. The unbranded handsets are continuously circulating in the Indian hands at numbers as high as a quarter of a million. These handsets generally cater to the class, which demands high-end services with a medium to low-level budget. Without the unique identification numbers, these mobiles become untraceable.Even as the struggle of the law authorities goes on to kick out these devices, the branded Chinese handset makers are eyeing the upbeat Indian mobile phone markets. He applied this patent to "cave radio" telephones and not directly to cellular telephony as the term is currently understood.In 1910 Lars Magnus Ericsson installed a telephone in his car, although this was not a radio telephone.


While travelling across the country, he would stop at a place where telephone lines were accessible and using a pair of long electric wires he could connect to the national telephone network.In Europe, radio telephony was first used on the first-class passenger trains between Berlin and Hamburg in 1926. At the same time, radio telephony was introduced on passenger airplanes for air traffic security. The telecom market adds 1 crore customers each month and provides huge potential for these manufacturers.
Later radio telephony was introduced on a large scale in German tanks during the Second World War. As the Chinese markets are reaching a certain level of saturation, the Indian economy is the new cash-milking cow.
After the war German police in the British zone of occupation first used disused tank telephony equipment to run the first radio patrol cars. In all of these cases the service was confined to specialists that were trained to use the equipment. In the early 1950s ships on the Rhine were among the first to use radio telephony with an untrained end customer as a user.Two-way radios (known as mobile rigs) were used in vehicles such as taxicabs, police cruisers, and ambulances, but were not mobile phones because they were not normally connected to the telephone network. A large community of mobile radio users, known as the mobileers, popularized the technology that would eventually give way to the mobile phone. Originally, mobile two-way radios were permanently installed in vehicles, but later versions such as the so-called transportables or "bag phones" were equipped with a cigarette lighter plug so that they could also be carried, and thus could be used as either mobile or as portable two-way radios. During the early 1940s, Motorola developed a backpacked two-way radio, the Walkie-Talkie and later developed a large hand-held two-way radio for the US military.
This battery powered "Handie-Talkie" (HT) was about the size of a man's forearm.In 1946 soviet engineers G.


Zaharchenko successfully tested their version of a radio mobile phone mounted inside a car. The device could connect to local telephone network with a range of up to 20 kilometers.Top of cellular telephone tower In December 1947, Douglas H. Engel of Bell Labs developed the electronics.During the 1950s the experiments of the pioneers started to appear as usable services across society, both commercially and culturally. In the 1954 movie Sabrina, the businessman Linus Larrabee (played by Humphrey Bogart) makes a call from the phone in the back of his limousine.In 1957 young Soviet radio engineer Leonid Kupriyanovich from Moscow created the portable mobile phone, named after himself as LK-1 or "radiophone". This true mobile phone consisted of a relatively small-sized handset equipped with an antenna and rotary dial, and communicated with a base station.
Kupriyanovich's "radiophone" had 3 kilogram of total weight, could operate up to 20 or 30 kilometers, and had 20 or 30 hours of battery lifespan. The base station of LK-1 (called ATR, or Automated Telephone Radiostation) could connect to local telephone network and serve several customers.In 1958, Kupriyanovich resized his "radiophone" to "pocket" version. This did not provide continuity of automatic telephone service to mobile phones moving through several cell areas.In 1969, a patent for a wireless phone using an acoustic coupler for incoming calls was issued in US Patent Number 3,449,750 to George Sweigert of Euclid, Ohio on June 10, 1969. Dialing a number for outgoing calls was not provided.The concepts of frequency reuse and handoff, as well as a number of other concepts that formed the basis of modern cell phone technology, were described in the 1970s. Joel, Jr., another Bell Labs engineer, invented an automatic "call handoff" system to allow mobile phones to move through several cell areas during a single conversation without loss of conversation.



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