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. 27, 2007
Filed:
Apr. 12, 2004
Yasuo Kohashi, Kasuya-Gun, JP;
Yasuo Kohashi, Kasuya-Gun, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The integrated circuit comprises, in addition to a first bus and a first DMA controller, a second bus and a second DMA controller that mutually connects the first bus and the second bus. A main memory is connected to the first bus, and a frame memory is connected to the second bus. By the construction, a possible conflict in data transfer as 'urgent processing' and as 'normal processing' can be avoided. The data transfer as “urgent processing” includes transferring image data between the frame memory and an image input device or an image display device; while the data transfer as “normal processing” includes transferring image data between the main memory and the frame memory.