Image drawing apparatus

Computer graphics processing and selective visual display system – Computer graphics display memory system – Logical operations

Reexamination Certificate

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Details

C345S581000

Reexamination Certificate

active

07460128

ABSTRACT:
In an image drawing apparatus for conducting a data transfer at a bit unit for image data stored in a memory device, a region storing part stores a region where at least one attribute value concerning a pixel is not constant in the image data, an attribute value storing value stores each attribute value of pixels in the region, a constant value storing part stores a constant value as the attribute value, an inside region determining part determines whether or not a coordinate being transferred is within the region, and a selection signal generating part selects one of the attribute value storing part as a selected storing part and the constant value storing part based on a determination result obtained by the inside region determining part, and generating a selection signal indicating the selected storing part, wherein a predetermined process for source image data is conducted by obtaining the attribute value from the selected storing part.

REFERENCES:
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patent: 5295202 (1994-03-01), Steinkirchner et al.
patent: 6414692 (2002-07-01), Takimoto
patent: 2003/0095128 (2003-05-01), Yamada et al.
patent: 2003/0156220 (2003-08-01), Narita
patent: 7-74927 (1995-03-01), None
patent: 9-212410 (1997-08-01), None
patent: 2003-157433 (2003-05-01), None
European Search Report and Annex dated Feb. 27, 2006 of Application No. 05 25 0893.

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