Single chip microcomputer having a built-in on screen display de

Details Single chip microcomputer having a built-in on screen display de Single chip microcomputer having a built-in on screen display de

1994-09-30

2000-05-02

Huynh, Ba

Computer graphics processing and selective visual display system

Data responsive crt display control

Alphanumeric display

345 25, 348563, G09G 116

Patent

active

060578130

ABSTRACT:
A microcomputer has a plurality of on screen display devices in one chip. Under control of a CPU, display tasks are respectively controlled in the on screen display devices in an independent manner, thereby obtaining a desired display screen on which the display tasks are simultaneously displayed. The microcomputer has a function of controlling priorities of display of the display tasks, and that of controlling occurrence of interrupt and existence of a mask in display of the display tasks. A desired display screen on which the display tasks are simultaneously displayed is obtained by combining these control functions.

REFERENCES:
patent: 5303048 (1994-04-01), Chiok
patent: 5325183 (1994-06-01), Rhee
patent: 5343249 (1994-08-01), Moon
patent: 5367317 (1994-11-01), Hosotani
patent: 5386238 (1995-01-01), Kinghou et al.
patent: 5396297 (1995-03-01), Shindou et al.
patent: 5420610 (1995-05-01), Takahashi
patent: 5428405 (1995-06-01), Lee
patent: 5438375 (1995-08-01), Sasabe et al.
patent: 5438377 (1995-08-01), Chang

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