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. 24, 2011
Filed:
Mar. 08, 2010
Hyung-ock Kim, Seoul, KR;
Jung-yun Choi, Gyeonggi-do, KR;
Bong-hyun Lee, Gyeonggi-do, KR;
Mun-jun Seo, Daejeon, KR;
Youngsoo Shin, Daejeon, KR;
Hyung-Ock Kim, Seoul, KR;
Jung-Yun Choi, Gyeonggi-do, KR;
Bong-Hyun Lee, Gyeonggi-do, KR;
Mun-Jun Seo, Daejeon, KR;
Youngsoo Shin, Daejeon, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Korea Advanced Institute of Science and Technology, Daejeong, KR;
Abstract
A power gating circuit includes a logic circuit, a switching element and a retention flip-flop. The logic circuit is coupled between a first power rail and a virtual power rail. The switching element selectively couples the virtual power rail to a second power rail in response to a mode control signal indicating an active mode or a standby mode. The retention flip-flop selectively performs a flip-flop operation or a data retention operation in response to a voltage of the virtual power rail.