Chroma signal recording and reproducing circuit

Details Chroma signal recording and reproducing circuit Chroma signal recording and reproducing circuit

1982-12-07

1985-06-18

Murray, Richard

Facsimile and static presentation processing

Facsimile

Recording apparatus

358329, H04N 9491

Patent

active

045243808

ABSTRACT:
A chroma signal recording and reproducing circuit of a magnetic recording and reproducing apparatus having a recording circuit for frequency-modulating a luminance signal of a color video signal, low-frequency converting a chroma signal and frequency-multiplexing those signals for recording and a reproducing circuit for frequency-converting the low-frequency converted chroma signal in a reproduced signal and frequency-demodulating the FM luminance signal to reproduce a color video signal is disclosed. The circuit comprises a chroma signal recording circuit including a first ACC circuit and a first frequency converter connected to the first ACC circuit, and a chroma signal reproducing circuit including a second ACC circuit, a second frequency converter connected to the second ACC circuit, a comb filter connected to the second frequency converter and a deemphasis circuit connected to the output of the comb filter.

REFERENCES:
patent: 3816848 (1974-06-01), Skinner
patent: 4068257 (1978-01-01), Hirota et al.
patent: 4068259 (1978-01-01), Tinet et al.
patent: 4220964 (1980-09-01), Yamagiwa et al.
patent: 4263612 (1981-04-01), Gibson et al.

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