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. 04, 2011
Filed:
May. 09, 2008
Jin-hyoung Kwon, Seongnam-si, KR;
Han-gu Sohn, Suwon-si, KR;
Dong-woo Lee, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A multiprocessor system includes first and second processors and a multi-path accessible semiconductor memory device including a shared memory area and a pseudo operation execution unit. The shared memory area is accessible by the first and second processors according to a page open policy. The pseudo operation execution unit responds to a virtual active command from one of the first and second processors to close a last-opened page. The virtual active command is generated with a row address not corresponding to any row of the shared memory area. For example, bit-lines of a last accessed row are pre-charged for closing the last-opened page.