Color image information inserting circuit for video signal recor

Details Color image information inserting circuit for video signal recor Color image information inserting circuit for video signal recor

1989-05-31

1992-01-14

Richardson, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358 22, 358 40, 358326, H04N 979

Patent

active

050815377

ABSTRACT:
A circuit for inserting color information into a video signal during either recording or reproduction. The circuit extracts a burst signal from a chroma signal input and generates a first color carrier phase-locked with the burst signal. The chroma signal is modulated in accordance with the burst signal and the first color carrier. A second color carrier is generated from the first color carrier. The two color carriers are mixed together creating a color signal which will be selectively inserted into the chroma signal. The insertion of the color signal is controlled by an additional image information generating circuit.

REFERENCES:
patent: 4405946 (1983-09-01), Knight
patent: 4561013 (1985-12-01), Fukui et al.
patent: 4613906 (1986-09-01), Tanaka et al.
patent: 4639768 (1987-01-01), Ueno et al.
patent: 4665438 (1987-05-01), Miron et al.
patent: 4811085 (1989-03-01), Idei et al.

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