Display controller, electronic instrument, and method of...

Details Display controller, electronic instrument, and method of... Display controller, electronic instrument, and method of...

2005-07-05

2010-02-23

Tung, Kee M (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics display memory system

Graphic display memory controller

C345S564000, C345S565000, C345S566000

Reexamination Certificate

active

07667708

ABSTRACT:
A display controller includes a memory storing at least three frames of image data, a write starting address register to which a write starting address is set, a read starting address register to which a read starting address is set, and a rotation control section performing control for reading out from the memory image data corresponding to an image whose orientation is rotated. When writing of the image data to the area designated by the write starting address is completed, the write starting address is updated and the previous value of the updated write starting address is set to the read starting address register. The image data corresponding to the rotated image is read out by the rotation control section40from an area of the memory designated by the read starting address, and then supplied to a display driver.

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patent: 2003/0210338 (2003-11-01), Matsuoka et al.
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patent: 2003-224862 (2003-08-01), None

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