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. 24, 2012
Filed:
Oct. 23, 2007
Dong-hyuk Lee, Seoul, KR;
Kyung-woo Nam, Seoul, KR;
Yong-jun Kim, Hwaseong-Si, KR;
Jong-wook Park, Suwon-Si, KR;
Chi-sung OH, Gunpo-Si, KR;
Dong-Hyuk Lee, Seoul, KR;
Kyung-Woo Nam, Seoul, KR;
Yong-Jun Kim, Hwaseong-Si, KR;
Jong-Wook Park, Suwon-Si, KR;
Chi-Sung Oh, Gunpo-Si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A multi-port memory device includes a refresh register and a refresh controller for preventing refresh starvation in a shared memory unit of the memory device. The memory device further includes a plurality of ports sharing access to the shared memory unit. The refresh register stores information regarding at least one refresh command. The refresh controller determines whether to activate an internal refresh operation at a transition in port authority according to such information stored in the refresh register.