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:
May. 30, 2000
Filed:
Aug. 29, 1997
Applicant:
Inventors:
Airell R Clark, II, Albany, OR (US);
Brian R Jung, Poway, CA (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M / ;
U.S. Cl.
CPC ...
341 50 ; 711108 ;
Abstract
A method and apparatus for prioritizing encoded MATCH signal and MATCH ADDRESS signals for a content addressable memory ('CAM') array is disclosed. Each CAM core has an output encoder for providing a MATCH signal and, if a MATCH is determined, a MATCH.sub.-- ADDRESS signal indicative of locations in the CAM of the data of interest. The priority encoder output signals are encoded to provide a final MATCH signal and a final MATCH.sub.-- ADDRESS to only the highest priority MATCH.sub.-- ADDRESS from the CAM core having the data, solving the problem of determining which of a plurality of CAM matches to select.