Image processing apparatus

Details Image processing apparatus Image processing apparatus

1993-09-29

1995-11-14

Nguyen, Phu K.

G06F 1500

Patent

active

054674425

ABSTRACT:
In an image processing apparatus, a plurality of different images are displayed simultaneously on a display screen. According to a first feature, a priority circuit determines a display order of images for each dot, the images being supplied from a variety of image generators. In accordance with the priority order, the images are displayed on a screen. According to a second feature, an image processing apparatus includes a register for specifying a key area to be displayed as being transparent. A plurality of images are synthesized in accordance with the data held in the register. According to a third feature, a video display processor (VDP) processes color data of an image to be displayed, and a video encoder unit synthesizes a plurality of images in a predetermined order of a display priority by a cellophane function. The cellophane function is controlled to be turned on and off for each unit of a predetermined data block.

REFERENCES:
patent: 4704605 (1987-11-01), Edelson

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