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:
Feb. 27, 2007
Filed:
Sep. 17, 2003
Norio Michiie, Tokyo, JP;
Hiromitsu Shimizu, Kanagawa, JP;
Yuriko Obata, Tokyo, JP;
Kiyotaka Moteki, Tokyo, JP;
Yasuhiro Hattori, Kanagawa, JP;
Takao Okamura, Tokyo, JP;
Norio Michiie, Tokyo, JP;
Hiromitsu Shimizu, Kanagawa, JP;
Yuriko Obata, Tokyo, JP;
Kiyotaka Moteki, Tokyo, JP;
Yasuhiro Hattori, Kanagawa, JP;
Takao Okamura, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A data processing device is disclosed. The device is provided with a plurality of data processing units; a first memory shared for storing data, to which each of the data processing units makes an access so as to perform an operation; a transfer completion time designation unit for designating a transfer completion time according to need, within which transferring the data in response to the accesses made by the data processing units should be completed; an expected transfer completion time calculation unit for calculating an expected transfer completion time needed for completing the data transfer in response to the accesses made by the data processing units, taking current access status of the first memory into consideration; and an access management unit for managing the access to the first memory based on the transfer completion time and the expected transfer completion time.