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:
Jan. 06, 2004
Filed:
Jan. 25, 2002
Applicant:
Inventor:
Jeng-Jye Shau, Palo Alto, CA (US);
Assignee:
UniRam Technology, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 1/500 ;
U.S. Cl.
CPC ...
G11C 1/500 ;
Abstract
Using 6 transistor memory cell to replace prior art 10 transistor binary content addressable memory (CAM) cells, and using 10 transistor ternary CAM (TCAM) cell to replace prior art 16 transistor TCAM cells, the present invention provided significant cost saving for high density CAM products. The power consumption problems of prior art high density CAM devices are solved by novel zoned lookup mechanism. For a high density CAM storing sorted data, lookup mechanisms of the present invention can reduce power consumption by two orders of magnitudes.