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:
May. 02, 1995
Filed:
Apr. 09, 1993
Applicant:
Inventor:
Isao Hasegawa, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395425 ; 364D / ;
Abstract
A selector is arranged to receive two kinds of memory bank access requests: one is a fresh request and the other a request which has been rejected at least once. In the event that the two kinds of requests are applied to the selector simultaneously, the selector allows the request at least once rejected, in preference to a fresh one, to be checked in the following access decision circuit to see if a bank demanded by the selected request is permissible or not. If the bank access request is not allowed at the access decision circuit, it is delayed for a predetermined time period and is again applied to the selector.