Wireless transmission from the television set to the television station
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United States of America Patent
Stats
-
May 27, 1986
Issued Date -
N/A
app pub date -
May 29, 1985
filing date -
Feb 12, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
First Claim
Family
International Classification(s)
Cited Art Landscape
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