Video signal record/playback device

Details Video signal record/playback device Video signal record/playback device

1983-11-21

1988-04-12

Psitos, Aristotelis M.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358314, H04N 9491

Patent

active

047378620

ABSTRACT:
In a record mode, a record video signal applied to an input terminal is separated into a luminance signal and a color signal by a comb filter made up of a 1H delay line, an adder circuit and a subtraction circuit. In a playback mode, the reproduced luminance signal and color signal are added together in an adder circuit, thereby to form a video signal. This video signal is applied to the comb filter through switches and then is separated into a luminance signal and a color signal.

REFERENCES:
patent: 2996576 (1961-08-01), Dolby
patent: 3812523 (1974-05-01), Nahaha
patent: 4122489 (1978-10-01), Bolger et al.
patent: 4218696 (1980-08-01), Ushio et al.
patent: 4272785 (1981-06-01), Fuhrer
patent: 4355333 (1982-10-01), Sato
patent: 4490748 (1984-12-01), Kamath
patent: 4513311 (1985-04-01), Hirai et al.
patent: 4524380 (1985-06-01), Shibata et al.
patent: 4613909 (1986-09-01), Tobe
"A Base-Band Comb Filter for Consumer Television Receivers"; Lagoni et al, IEEE Transactions on Consumer Electronics, vol. CE-26, Feb. 1980, pp. 94-99.

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