Posts Tagged ‘history wireless technology in home secruity’

This is a brief timeline of Wireless technologies development :

1896 Guglielmo Marconi develops the first wireless telegraph system

1927 First commercial radiotelephony service operated between Britain and the US

1946 First car-based cellphone set up in St. Louis, exploitation ‘push-to-talk’ technology

1948 Claude Shannon publishes two benchmark papers on Information Theory, containing the basis for data compression (source encoding) and error detection and correction (channel encoding)

1950 TD-2, the first terrestrial microwave telecom system, established to support 2400 telephone circuits

1950s Late in the decade, several ‘push-to-talk’ mobile systems established in big cities for CB-radio, taxis, etc.
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