Circuit arrangement for processing a color signal at a carrier f

Details Circuit arrangement for processing a color signal at a carrier f Circuit arrangement for processing a color signal at a carrier f

1996-07-08

1998-09-01

Tran, Thai

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

386 44, H04N 979

Patent

active

058022384

ABSTRACT:
In a circuit arrangement for processing a color subcarrier signal reproduced by a video recorder and modulated on a carrier with a first carrier frequency to let a comb filter circuit in the arrangement have the least possible required memory capacity, there is provided that the color subcarrier signal modulated on the first carrier frequency is applied to a first mixer (1) by which the color subcarrier signal is converted to a second carrier frequency which is higher than the first carrier frequency, that the output signal of the first mixer (1) is applied to a comb filter circuit (2, 3, 4) which suppresses adjacent track originating crosstalk color signals in the reproduced color signal, and that the output signal of the comb filter circuit (2, 3, 4) is applied to a second mixer (5) by which the comb-filtered signal is converted to a third carrier frequency which is higher than the second carrier frequency.

REFERENCES:
patent: 3715468 (1973-02-01), Fujita
patent: 3918085 (1975-11-01), Numakura et al.
patent: 4178606 (1979-12-01), Hirota
patent: 4695877 (1987-09-01), Matsumoto
patent: 4745493 (1988-05-01), Gedl et al.
patent: 4881134 (1989-11-01), Grouthaus et al.
patent: 4991026 (1991-02-01), Takase et al.
patent: 5062004 (1991-10-01), Winterer et al.
patent: 5121073 (1992-06-01), Pijnenburg et al.
Philips Semiconductors Integrated Circuits Data Sheet TDA9715H/A , Aug. 1993.

Affiliated with

Also associated with

Rating

Circuit arrangement for processing a color signal at a carrier f does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit arrangement for processing a color signal at a carrier f, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit arrangement for processing a color signal at a carrier f will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-278480