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:
Mar. 29, 2016
Filed:
Aug. 01, 2013
Nec Corporation, Tokyo, JP;
Tohoku University, Sendai-shi, Miyagi, JP;
Noboru Sakimura, Tokyo, JP;
Ryusuke Nebashi, Tokyo, JP;
Tadahiko Sugibayashi, Tokyo, JP;
Shoun Matsunaga, Miyagi, JP;
Takahiro Hanyu, Miyagi, JP;
Hideo Ohno, Miyagi, JP;
NEC CORPORATION, Tokyo, JP;
TOHOKU UNIVERSITY, Miyagi, JP;
Abstract
Provided is a nonvolatile content addressable memory. Each word circuit includes a plurality of segments having an order relation. Each of the segments includes one or more memory cells. Each of the memory cells includes a nonvolatile storage element. Each of the segments includes a power switch for turning on/off a power of a memory cell of the segment. During stand-by, all the power switches are turned off, and, in search operation, the power switch is turned on as necessary for each of the segments.