Multiple-RAM CAM device and method therefor

Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition

Reexamination Certificate

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C711S104000, C365S049130

Reexamination Certificate

active

07054994

ABSTRACT:
A method and system for storing arranged data in a memory, the system including: (a) a plurality of random access memories, each random access memory (RAM) of the plurality including: (i) a first array of cells, the first array having at least two dimensions and having rows and columns, the first array designed and configured to contain a plurality of key entries, each of the cells having a unique address including a row index and a column index, each of the key entries for matching with an input key, and (b) a processor designed and configured to search the plurality of key entries for a match, in response to the input key, the plurality of RAMs designed and configured such that: (i) at least one row in a second of the RAMs has a row index that is identical to a row index in a first of the RAMs, and (ii) the key entries are arranged within each of the plurality of RAMs in monotonic order.

REFERENCES:
patent: 6226710 (2001-05-01), Melchior
patent: 6374325 (2002-04-01), Simpson et al.
patent: 6553453 (2003-04-01), Gibson et al.
patent: 6633953 (2003-10-01), Stark
patent: 6718433 (2004-04-01), Pereira
patent: 6757780 (2004-06-01), Stark
patent: 6766317 (2004-07-01), Sharma et al.
patent: 2003/0182498 (2003-09-01), Villaret et al.
patent: PCT/IL01/01025 (2001-11-01), None
patent: WO 01/91132 (2001-11-01), None

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