Image frame composing circuit utilizing color look-up table

Details Image frame composing circuit utilizing color look-up table Image frame composing circuit utilizing color look-up table

1987-07-10

1989-08-01

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

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

340747, G09G 128

Patent

active

048536814

ABSTRACT:
A transparency designation memory is provided in parallel with color loop-up tables (CLUTs) corresponding to a plurality of frames. When color value data are set in the CLUTs, a transparency designation memory section detects if the color value is transparency or not, and writes data indicating the presence or absence of transparency designation. A frame selector is also provided, which selects a displayed image frame according to the transparency designation signal outputs stored corresponding to entry addresses and in the order of display priorities of the image frames.

REFERENCES:
patent: 4509043 (1985-04-01), Mossaides
patent: 4570233 (1986-02-01), Yan et al.
patent: 4727365 (1988-02-01), Bunker et al.
Videotex Communications Network Service (section: Terminal) Shadan-Hojin Denkitsushin-Kyokai issued on Aug. 25, 1984, pp. 209-218 in CAPTAIN PLPS of the Videotex Standards.

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