H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/24, 350/34,
H04N 7/173 (2006.01)
Patent
CA 1281126
WIRELESS TRANSMISSION FROM THE TELEVISION SET TO THE TELEVISION STATION Abstract of the Disclosure: Query signals are transmitted by wireless means from the television station to the television set. Response units at receiver locations have a radio frequency transmitter send a response to the station inquiry sent on horizontal lines of the T.V. signal at controlled times identifying each station. This response is a simple r-f beep synchronized with the T.V. signal, in such a way that each set transmitter emits the beep only in its unique time slot. Simplified response units are tuned to the standard intermediate frequency of the T.V. sets and thus need not be wired in and need not have a channel selector.
502223
Garza Fernando Morales
Morales-Garza Oscar
Ortiz-Salinas Jorge E.
Finlayson & Singlehurst
Tv Answer International Inc.
LandOfFree
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