Apparatus for removing jitter in color television signal

Details Apparatus for removing jitter in color television signal Apparatus for removing jitter in color television signal

1978-05-05

1980-03-11

Konick, Bernard

Facsimile and static presentation processing

Static presentation processing

Attribute control

358155, 360 36, H04N 5795, H04N 508

Patent

active

041930851

ABSTRACT:
An apparatus for removing jitter in a color signal is provided with a record/play-back apparatus for recording and playing back a color television signal. The color television signal played back by the record/play-back apparatus is applied to a jitter detection device where a phase comparing signal is detected from the color television signal. The phase comparison signal is applied to a jitter correction device. A reference signal oscillator applies a reference signal to the jitter correction device. The phases between the phase comparing signal and the reference signal are compared in a phase comparator. The output signal of the phase comparator is applied to one of the input terminals of a variable delay circuit. A color play-back signal applied to the other input terminal of the variable delay circuit is time-delayed so that the jitter in the color play-back signal is corrected.

REFERENCES:
patent: 3312780 (1967-04-01), Hurst et al.
patent: 3769449 (1973-10-01), Inoue
patent: 4074307 (1978-02-01), Dischert et al.
patent: 4081834 (1978-03-01), Takamiya et al.
patent: 4126886 (1978-11-01), Takahara et al.
Standard Specification of AVR-2 Automatic Video Tape Recorder, Toshiba Ampex Co., Ltd., Dec. 1974.
Jitter Correcting Device-Video Recording Study Meeting Data Number VRIT-1-M. Imamura, May 27, 1971.

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