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:
Jun. 26, 2001
Filed:
Mar. 19, 1999
Eric H. Voelkel, Ben Lomond, CA (US);
Lara Technology, Inc., San Jose, CA (US);
Abstract
A content addressable memory (CAM) that is capable of providing multiple word matching is disclosed. According to one embodiment, a CAM (,) includes a word array (,) of data word registers (,-,to,-ni). Each data word register (,-,to,-ni) provides a word match value (MATCH0-MATCHni) that indicates if an applied comparand value is the same as a data word stored within a data word register (,-,to,-ni). Word match values (MATCH0-MATCHni) are received by a match detect circuit (,) that provides a number of encoding values (ENC0-ENCni). In a single word match mode, a comparand value is applied and the encoding values (ENC0-ENCni) can represent single word match values. In a multiple word match mode, a sequence of comparand values are applied and the resulting word match values stored. The resulting encoding values (ENC0-ENCni) can represent the logical combination of multiple word match values.