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:
Oct. 24, 2023
Filed:
Jun. 30, 2022
Fujitsu Limited, Kawasaki, JP;
Yuji Kondo, Kawasaki, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A memory access controller includes a request issuing circuit to issue a user request in response to a memory request, issue a refresh request at first issuing intervals, and issue a scrubbing request at second issuing intervals; and a command issuing circuit to issue a first active to a memory via a row command bus and issue M reads to the memory via a column command bus after the first active is issued, when memory access for the user request is to be executed, issue refresh to the memory via the row command bus when the memory access for the refresh request is executed, and issue a second active to the memory via the row command bus and issues N (>M) reads to the memory via the column command bus after the second active is issued, when the memory access for the scrubbing request is to be executed.