Video superimposition system with chroma keying

Details Video superimposition system with chroma keying Video superimposition system with chroma keying

1986-07-29

1987-09-29

Shepperd, John W.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340703, H04N 975

Patent

active

046971769

ABSTRACT:
A graphic decoder circuit for a compact disk player has a color signal generator (6) called a color look-up table (CLUT), which outputs RGB video signals stored in parts addressed by color code signals. The color code signals are simultaneously supplied to a decoder circuit (10), which in turn outputs switching signals (Ys) for superimposition only when specific color signals designated by switching means (11) are inputted. Thus, graphic information from the compact disk player formed by arbitrary colors can be superimposed on pictures obtained from a television receiver or the like.

REFERENCES:
patent: 4149184 (1979-04-01), Giddings et al.
patent: 4413273 (1983-11-01), Wischermann
patent: 4599611 (1986-07-01), Bowker et al.

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