Digital signal transmitting and/or receiving system

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

1984-11-06

1987-04-07

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

3701101, 455 4, 455 6, 358 86, 358143, H04J 302, H04J 312, H04H 100, H04N 100

Patent

active

046566295

ABSTRACT:
A digital signal transmitting system includes a signal generator for producing 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. In a receiver, the service bit signals are decoded so as to control the channel changeover 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.

REFERENCES:
patent: 3889051 (1975-06-01), Legler
patent: 4061577 (1977-12-01), Bell
patent: 4390901 (1983-06-01), Keiser
patent: 4461032 (1984-07-01), Skerlos
patent: 4535454 (1985-08-01), Buzzard et al.
patent: 4542406 (1985-09-01), Shimoyama et al.
patent: 4544950 (1985-10-01), Tu
patent: 4550400 (1985-10-01), Henderson, Jr. et al.
patent: 4554658 (1985-11-01), Marten et al.

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