Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1983-09-21
1986-06-03
Psitos, Aristotelis M.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358310, 358328, H04N 9491, H04N 578
Patent
active
045933278
ABSTRACT:
A color video signal recording and reproducing system comprises a circuit for recording and reproducing a recording signal onto and from a recording medium, a modulator for frequency modulating a carrier by a luminance signal separated from an input video signal, a first converter for frequency converting a carrier chrominance signal separated from the video signal into a band which is lower than a band occupied by the frequency modulated luminance signal, a gating circuit for passing the frequency converted carrier chrominance signal with an interval of one track scanning period in which one track on the recording medium is scanned, a first mixer for mixing the frequency modulated luminance signal and the intermittent frequency converted carrier chrominance signal from the gating circuit, where the first mixer alternately produces a mixed multiplexed signal in which the frequency modulated luminance signal and the frequency converted carrier chrominance signal are multiplexed, and a signal solely comprising the frequency modulated luminance signal, for every one track scanning period, and the output signal of the first mixer is the recording signal, a demodulator for demodulating the frequency modulated luminance signal which is separated from a reproduced signal, a processing circuit for processing the intermittent frequency converted carrier chrominance signal which is separated from the reproduced signal, into a continuous carrier chrominance signal in its original band, and a second mixer for mixing the outputs of the demodulator and the processing circuit, to obtain a reproduced color video signal.
REFERENCES:
patent: 3234323 (1966-02-01), Kihara
patent: 3730983 (1973-05-01), Numakura et al.
patent: 3846819 (1974-11-01), Warren
patent: 4344082 (1982-08-01), Ishiodori
patent: 4491876 (1985-01-01), Aoike et al.
Hirota Akira
Nagaoka Yoshimichi
Psitos Aristotelis M.
Victor Company of Japan Ltd.
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