Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1984-07-26
1987-04-14
Cardillo, Raymond F.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358340, 358167, 360 65, H04N 980, G11B 2024
Patent
active
046583050
ABSTRACT:
A video signal recording and reproducing apparatus comprises a circuit for separating a luminance and carrier chrominance signals from a color video signal and for recording on and reproducing from a recording medium a multiplexed signal in which a frequency modulated luminance signal and a frequency converted carrier chrominance signal which is frequency-converted into a low frequency band are multiplexed, a circuit for obtaining a reproduced luminance signal, a circuit for obtaining a reproduced carrier chrominance signal which is in an original frequency band and has an original phase by subjecting a reproduced frequency converted carrier chrominance signal to a signal processing, a de-emphasis circuit supplied with the reproduced luminance signal and/or an input signal or the reproduced carrier chrominance signal of the processing circuit, for relatively attenuating the level of a high-frequency component in a temporal frequency of the reproduced luminance signal and/or an input signal or the reproduced carrier chrominance signal of the processing circuit compared to a low-frequency component, and a mixer for mixing the reproduced luminance signal and the reproduced carrier chrominance signal so as to produce a reproduced color video signal.
REFERENCES:
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patent: 4296436 (1981-10-01), Achiha
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patent: 4348692 (1982-09-01), Ilmer
patent: 4355333 (1982-10-01), Sato
patent: 4510530 (1985-04-01), Miura
Cardillo Raymond F.
Victor Company of Japan Ltd.
Weinhardt Robert A.
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