Digital signal transmitting and/or receiving system

Details Digital signal transmitting and/or receiving system Digital signal transmitting and/or receiving system

H - Electricity

04

N

350/30

H04N 7/16 (2006.01) H04J 3/16 (2006.01) H04H 1/00 (2006.01)

Patent

CA 1215165

ABSTRACT OF THE DISCLOSURE A digital signal transmitting system includes a signal generator for producing a time division-multiplexed digital audio signals and service bit signals, a modulator for modulating a carrier in accordance with the time division-multiplexed signals and a transmitter to transmit the modulated carrier through a CATV (cable television) transmission line. At a receiver side, the service bit signals are decoded so as to control the channel change- over of a television receiver when an emergency broadcast signal is transmitted. A muting control circuit is also provided so as to mute an audio signal from a D/A (digital- to-analog) converter.

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