Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2006-02-07
2006-02-07
Padmanabhan, Mano (Department: 2188)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C711S156000
Reexamination Certificate
active
06996664
ABSTRACT:
The disclosed system and method describe a ternary CAM device having, in addition to a data entry and a ternary mask entry, one or more additional control words which can specify a net mask length and status, a table identifier, and/or a validity word to specify a detailed status of the segmented data words stored. This allows for the matching of ternary CAM device entries with a comparand without sorting ternary CAM device entries. Additional status words can be used for table identification to save space in the actual data word entries, and also allowing for matching of data entries with selected table identifiers, precluding having to search the entire ternary CAM array. Additional status words can also be used to provide additional state information to provide more flexibility in validity checking. The disclosed system and method can be used in ternary CAM devices having and/or supporting varying word widths.
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Baker Paul
Dorsey & Whitney LLP
Micro)n Technology, Inc.
Padmanabhan Mano
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