Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1984-12-04
1986-07-29
George, Keith E.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358120, 358121, H04N 710, H04N 7167
Patent
active
046033491
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.
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Eilers et al, "Television Multichannel Sound Broadcasting-A Proposal" IEEE Transactions on Communications, vol. CE-27, No. 3, Aug. 1981, pp. 398-409.
Gordon, "Stereo Unready-Why Your Cable Box Is Hopelessly Mono-tonous", Video magazine, Dec. 1984, vol. VIII, No. 9, pp. 117-118, 188-190.
General Instrument Corporation
George Keith E.
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