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:
Jul. 22, 2014
Filed:
Sep. 23, 2011
Applicant:
Keun Kook Kim, Seoul, KR;
Inventor:
Keun Kook Kim, Seoul, KR;
Assignee:
SK Hynix Inc., Gyeonggi-do, KR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor memory device includes a temperature sensor configured to generate a low-temperature signal which is enabled at below first set temperature and a high-temperature signal which is enabled at above second set temperature; a start signal generator configured to receive a refresh command and generate a start signal according to the low-temperature signal; and an address counter configured to count refresh addresses in response to the start signal.