Cable television system with stereo sound reproduction
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 29, 1986
Grant Date -
N/A
app pub date -
Dec 4, 1984
filing date -
Dec 4, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cable television converter is retrofitted for use in reproducing stereophonic broadcast television sound. A composite signal is produced comprising the scrambled output signal from the converter tuner, the reception enable control signal from the converter's digital processor, and the output signal from the converter's remote control detection circuit. The composite signal is applied to a stereo adapter which separates the audio signal portion of the composite signal into left and right stereo signals, extracts the enable control signal from the composite signal, and outputs the left and right stereo signals for audio reproduction upon authorization indicated by the extracted enable control signal. Remote volume control and selection of a second audio program (SAP) is also provided.
First Claim
Family
International Classification(s)
Cited Art Landscape
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