Wireless transmission from the television set to the television

Details Wireless transmission from the television set to the television Wireless transmission from the television set to the television

1985-05-29

1986-05-27

George, Keith E.

Facsimile and static presentation processing

Static presentation processing

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455 2, H04H 900

Patent

active

045919062

ABSTRACT:
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.

REFERENCES:
patent: 3769579 (1973-10-01), Harney
patent: 3803349 (1974-04-01), Watanabe
patent: 3990036 (1976-11-01), Savit
patent: 3997718 (1976-12-01), Ricketts et al.
patent: 4225884 (1980-09-01), Block et al.
patent: 4245245 (1981-01-01), Matsumoto et al.
patent: 4290141 (1981-09-01), Anderson et al.
patent: 4347604 (1982-08-01), Saito et al.
patent: 4536791 (1985-08-01), Campbell et al.

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