Cable television audio messaging systems

Details Cable television audio messaging systems Cable television audio messaging systems

1996-02-26

1998-10-20

Grant, Christopher C.

Television

Special applications

Manufacturing

348 9, 348485, 455 63, H04N 716

Patent

active

058254072

ABSTRACT:
A multi-channel audio messaging system for cable television, installed at the headend, enables multiple different input audio messages to be supplied to multiple different channels of a cable television system. Multiple analog audio input message sources are supplied as a multiplexed audio input to a digitizer which outputs digitized audio signals which are switched and decoded, under the control of a microprocessor to provide different audio messages on desired channels.

REFERENCES:
patent: 3975583 (1976-08-01), Meadows
patent: 4331974 (1982-05-01), Cogswell et al.
patent: 5099319 (1992-03-01), Esch et al.
patent: 5140419 (1992-08-01), Galumbeck et al.
patent: 5548323 (1996-08-01), Callahan

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