The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 09, 2010
Filed:
Jul. 17, 2006
Katsutoshi Ushida, Kanagawa, JP;
Yuichi Naoi, Saitama, JP;
Yoshiaki Katahira, Chiba, JP;
Yasuyuki Nakamura, Kanagawa, JP;
Koichi Morishita, Tokyo, JP;
Makoto Fukuo, Kanagawa, JP;
Katsutoshi Ushida, Kanagawa, JP;
Yuichi Naoi, Saitama, JP;
Yoshiaki Katahira, Chiba, JP;
Yasuyuki Nakamura, Kanagawa, JP;
Koichi Morishita, Tokyo, JP;
Makoto Fukuo, Kanagawa, JP;
Canon Kabushiki Kiasha, Tokyo, JP;
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.