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:
Apr. 02, 2013
Filed:
Nov. 01, 2010
Masayuki Demura, Ebina, JP;
Hisato Matsuo, Yokohama, JP;
Keisuke Tanaka, Machida, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Memory access arbitration allowing a shared memory to be used both as a memory for a processor and as a buffer for data flows, including an arbiter unit that makes assignment for access requests to the memory sequentially and transfers blocks of data in one round-robin cycle according to bandwidths required for the data transfers, sets priorities for the transfer blocks so that the bandwidths required for the data transfers are met by alternate transfer of the transfer blocks, and executes an access from the processor with an upper limit set for the number of access times from the processor to the memory in one round-robin cycle so that the access from the processor with the highest priority and with a predetermined transfer length exerts less effect on bandwidths for data flow transfers in predetermined intervals between the transfer blocks.