Method and apparatus for performing variable word width...

Static information storage and retrieval – Associative memories – Compare/search/match circuit

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C365S049100

Reexamination Certificate

active

08004868

ABSTRACT:
A content Addressable memory (CAM) for performing search operations using variable width search data, said CAM comprising a plurality of arrays of CAM cells, each coupled to a respective sub-search data bus, the sub-search buses being confined to form a main search data bus, to which is applied the search data; selector circuits receiving match line signals from respective CAM arrays, the match line signals being indicative of the results of a search and comparison formed in the associated CAM array, the selector circuit being responsive to a mode selection signal for selecting one or more of said match line output signals to be switched to a priority encoder and multiple match resolver (PE-MMR), wherein in a first mode the match line output signals are switched to said PE-MMR and in a second mode groups of match line output signals from selected arrays are switched to said PE-MMR.

REFERENCES:
patent: 5383146 (1995-01-01), Threewitt
patent: 5440753 (1995-08-01), Hou et al.
patent: 5602764 (1997-02-01), Eskandari-Gharnin et al.
patent: 5877714 (1999-03-01), Satoh
patent: 6081441 (2000-06-01), Ikeda
patent: 6252789 (2001-06-01), Pereira et al.
patent: 6373738 (2002-04-01), Towler et al.
patent: 6389524 (2002-05-01), Sato
patent: 6535410 (2003-03-01), Yanagawa
patent: 6553453 (2003-04-01), Gibson et al.
patent: 6708250 (2004-03-01), Gillingham
patent: 6751111 (2004-06-01), Foss et al.
patent: 6771525 (2004-08-01), Roth
patent: 6972978 (2005-12-01), Miller et al.
patent: 7643324 (2010-01-01), Roth
patent: 2003/0035331 (2003-02-01), Foss et al.
patent: 2003/0070039 (2003-04-01), Gillingham
patent: 2004/0003170 (2004-01-01), Gibson et al.
patent: 2004/0093462 (2004-05-01), Roth et al.
patent: 2005/0262295 (2005-11-01), Nataraj et al.
“Restriction Requirement”, U.S. Appl. No. 11/367,507, filed Apr. 14, 2009, 9 pages.
“Notice of Allowance/Base Issue Fee Due”, U.S. Appl. No. 11/367,507, filed Aug. 21, 2009, 4 pages.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for performing variable word width... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for performing variable word width..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for performing variable word width... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2725122

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.