Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1981-10-09
1985-10-22
Cardillo, Jr., Raymond F.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358315, 358 19, 358 30, H04N 9493
Patent
active
045492255
ABSTRACT:
A reproduced color video signal processing circuit in a rotary recording medium reproducing apparatus reproduces a recorded signal from a rotary recording medium which is recorded with a composite color video signal in which a carrier chrominance signal is frequency-converted into a low frequency band and multiplexed using a common frequency band within a part of a frequency band of a luminance signal, and levels of the carrier chrominance signal and a color burst signal are controlled according to the level of the carrier chrominance signal with respect to the color burst signal. The processing circuit comprises a carrier chrominance signal obtaining circuit for obtaining a carrier chrominance signal returned to the original frequency band by frequency-converting the reproduced composite color video signal, a level controlling circuit for controlling the level of the color burst signal to a constant value according to the level of the color burst signal within the carrier chrominance signal thus obtained, a time axis deviation compensation circuit for substantially compensating for a time axis deviation component of the carrier chrominance signal which is to be obtained by the carrier chrominance signal obtaining circuit, a time axis deviation component adding and frequency converting circuit for adding the time axis deviation component to the carrier chrominance signal thus obtained, and frequency-converting and returning the carrier chrominance signal to the low frequency band, and a luminance signal obtaining circuit for obtaining the luminance signal by subtracting the carrier chrominance signal returned to the low frequency band from the reproduced composite color viedo signal.
REFERENCES:
patent: 3872497 (1975-03-01), Amery et al.
patent: 3949414 (1976-04-01), Hayashi
patent: 3996610 (1976-12-01), Kawamoto
patent: 4041526 (1977-08-01), Kaneko
patent: 4068256 (1978-01-01), Tsuchiya et al.
patent: 4068257 (1978-01-01), Hirota et al.
patent: 4110761 (1978-08-01), Watatani
patent: 4205335 (1980-05-01), Nakagawa et al.
patent: 4268854 (1981-05-01), Ozawa
patent: 4356506 (1982-10-01), Yamamitsu
patent: 4400742 (1983-08-01), Yamamitsu et al.
Aldous Alan K.
Bernat Louis
Cardillo, Jr. Raymond F.
Victor Company of Japan Ltd.
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