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, 1987
Filed:
Sep. 13, 1984
Applicant:
Inventor:
Yasaburo Inagaki, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365222 ; 365212 ; 307301 ;
Abstract
A semiconductor memory device with an internal refresh circuit is disclosed. The internal refresh circuit includes a timer circuit which generates a refresh request signal in a shorter cycle at a high temperature and in a longer cycle at a low temperature. The cycle of a self-refresh mode can be thereby lengthened in a low temperature to reduce a power consumption in the self-refresh mode.
Inagaki, Yasaburo. (1987). Semiconductor memory device with variable self-refresh cycle (U.S. Patent No. 4716551). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4716551
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile