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.

Date of Patent:
Oct. 01, 2019

Filed:

Dec. 08, 2015
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

John E. Barth, Jr., Williston, VT (US);

Dean L. Lewis, Williston, VT (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 15/04 (2006.01); G11C 15/00 (2006.01);
U.S. Cl.
CPC ...
G11C 15/046 (2013.01); G11C 15/00 (2013.01); G11C 15/04 (2013.01);
Abstract

An array organization and architecture for a content addressable memory (CAM) system. More specifically, a circuit is provided for that includes a first portion of the CAM configured to perform a first inequality operation implemented between 1 to n CAM entries. The circuit further includes a second portion of the CAM configured to perform a second inequality operation implemented between the 1 to n CAM entries. The first portion and the second portion are triangularly arranged side by side such that the first inequality operation and the second inequality operation are implemented between the 1 to n CAM entries using the same n wordlines.


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