Video and audio signal recording and/or reproducing apparatus

Details Video and audio signal recording and/or reproducing apparatus Video and audio signal recording and/or reproducing apparatus

1986-07-25

1988-06-21

Richardson, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358330, 358341, 358343, 360 191, H04N 5782

Patent

active

047528320

ABSTRACT:
A video and audio signal recording apparatus comprises a video block, a digital audio signal producing circuit, a modulating circuit for generating an n-value frequency modulated signal, where n is an integer greater than or equal to three, and a recording circuit for recording the n-value frequency modulating signal and a frequency division multiplexed signal from the video block. A video and audio signal recording and reproducing apparatus comprises a first video block, a digital audio signal producing circuit, a modulating circuit for generating an n-value frequency modulated signal, a recording and reproducing circuit, first and second demodulating circuits, a decoder, and a second video block for obtaining a reproduced video signal.

REFERENCES:
patent: 4672473 (1987-06-01), Sugiyama

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