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:
Feb. 21, 2012
Filed:
Mar. 06, 2009
Brian L. Ji, Fishkill, NY (US);
Chung H. Lam, Peekskill, NY (US);
Robert K. Montoye, Rocheter, MN (US);
Bipin Rajendran, White Plains, NY (US);
Brian L. Ji, Fishkill, NY (US);
Chung H. Lam, Peekskill, NY (US);
Robert K. Montoye, Rocheter, MN (US);
Bipin Rajendran, White Plains, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A content addressable memory device with a plurality of memory cells storing ternary data values of high, low, and don't care. An aspect of the content addressable memory device is the use of first memory elements and second memory elements in the memory cells. The first and second memory elements are electrically coupled in parallel circuit to a match-line. The first memory elements are coupled to first word-lines and the second memory elements are coupled to second word-lines. The first memory elements are configured to store low resistance states if the ternary data value is low and high resistance states if the ternary data value is either high or don't care. The second memory elements are configured to store the low resistance states if the ternary data value is high and the high resistance states if the ternary data value is either low or don't care.