Clamp for video signal processing circuit

Details Clamp for video signal processing circuit Clamp for video signal processing circuit

1990-03-13

1992-11-10

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358315, 358310, H04N 576

Patent

active

051629216

ABSTRACT:
A video signal processing circuit utilizes an analog-to-digital converter to output a digital signal derived from a demodulated video signal which is supplied from a video signal demodulating circuit. The circuit can compensate the demodulated video signal by utilizing the conversion characteristics of an analog-to-digital converter, to compensate the level differences or linearity differences between the video signal reproducing channels in a video tape recorder employing multi-channel recording.

REFERENCES:
patent: 3381083 (1968-04-01), Jensen et al.
patent: 3643013 (1972-02-01), Lemoine
patent: 4286290 (1981-08-01), Pyles et al.
patent: 4802024 (1989-01-01), Knowlton
patent: 4853782 (1989-08-01), Asano et al.
The Electronics and Wireless World Article, vol. 90, No. 1585, Nov. 1984, pp. 31-34, J. R. Watkinson, "Variable-Speed Video Playback".

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