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:
Dec. 29, 2009
Filed:
Aug. 04, 2005
Toshihiro Tomozaki, Kawasaki, JP;
Toshiyuki Yoshida, Kawasaki, JP;
Yuichi Ogawa, Kawasaki, JP;
Terumasa Haneda, Kawasaki, JP;
Yuuji Hanaoka, Kawasaki, JP;
Toshihiro Tomozaki, Kawasaki, JP;
Toshiyuki Yoshida, Kawasaki, JP;
Yuichi Ogawa, Kawasaki, JP;
Terumasa Haneda, Kawasaki, JP;
Yuuji Hanaoka, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A DMA apparatus which reads data corresponding to a descriptor from memory, and a dividing unit in a descriptor management device divides one descriptor into a plurality of sub-descriptors. A plurality of DMA controllers produce a plurality of reading requests for reading data corresponding to the plurality of sub-descriptors from the memory. A memory controller reads the corresponding data from the memory according to the plurality of reading requests.