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. 26, 2016
Filed:
May. 03, 2013
Tohoku University, Sendai-shi, Miyagi, JP;
Takahiro Hanyu, Sendai, JP;
Shoun Matsunaga, Sendai, JP;
Naoya Onizawa, Montreal, CA;
Vincent Gaudet, Waterloo, CA;
TOHOKU UNIVERSITY, Sendai-shi, JP;
Abstract
A semiconductor storage deviceincludes: an input controller (); and a content-addressable memory block () connected to the input controller (). Each word circuit () of the content-addressable memory block () includes: a k-bit 1st-stage sub word () connected to search line 1 (SL1) of the input controller (); and an (n-k)-bit 2nd-stage sub word () connected to search line 2 (SL2) of the input controller (). The k-bit 1st-stage sub word () and the (n-k)-bit 2nd-stage sub word () are separated by a segmentation circuit (). When the 1st-stage sub word outputs a match signal, the match result is stored in the segmentation circuit (), and a plurality of local match circuits within the 2nd-stage sub word () are operated.