Computer graphics processing and selective visual display system – Computer graphics display memory system – Plural storage devices
Reexamination Certificate
2003-12-19
2009-02-24
Tung, Kee M (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics display memory system
Plural storage devices
C345S541000, C345S543000
Reexamination Certificate
active
07495669
ABSTRACT:
To provide an image processing technique compatible with both a CCD and a CIS, which controls storage of image data read by each device in a memory and the read of the stored data for each rectangular area to obtain a high memory efficiency, an image processing apparatus includes a memory area control section which sets, for image data bitmapped on a first memory, a rectangular area divided in a main scanning direction and sub-scanning direction, an address generation section which generates address information to read out image data corresponding to the rectangular area in correspondence with the set rectangular area, a memory control section which reads out the image data corresponding to the rectangular area and DMA-transfers the image data to a second memory in accordance with the generated address information, and an image processing section which executes image processing for each rectangular area of the DMA-transferred data by using the second memory.
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Office Action dated Dec. 8, 2008 in U.S. Appl. No. 11/487,370.
Fukuo Makoto
Katahira Yoshiaki
Morishita Koichi
Nakamura Yasuyuki
Naoi Yuichi
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Hsu Joni
Tung Kee M
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