Television sound signal processing apparatus

Details Television sound signal processing apparatus Television sound signal processing apparatus

1985-02-12

1988-05-17

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358143, H04N 7087, H04N 7093

Patent

active

047454768

ABSTRACT:
A television sound signal processing apparatus receives a digitized delta-encoded sound signal superposed in a horizontal blanking period and a digital signal showing the standard value of the sound signal superposed in a vertical blanking period, and then compares the reference signal of this field with that of one field before, and, when the difference is greater than a predetermined value, employs the decoded value of the delta encoded signal immediately before that reference signal as the standard value for the delta decoding of the sound signal.

REFERENCES:
patent: 4541101 (1985-09-01), Potage

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