Patent · US Active

Parallel multi-lookup TCAM

US9619584B1 · kind B1 · utility

1Cited by

2References

20Claims

0Family size

Assignee

Marvell Israel (M.I.S.L) Ltd. · IL

Inventors

Amir Roitshtein · Holon, IL
Gil Levy · Hod HaSharon, IL
Lior Valency · Petah Tikva, IL

Key dates

Filing date	Aug 4, 2014
Grant date	Apr 11, 2017
Priority date	—
Expiry date	Jul 10, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG11C15/00
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Aspects of the disclosure provide a circuit that includes a content addressable memory (CAM) array, a first mask circuit and a first encoder. The CAM array has CAM entry lines to be compared with a search key. The CAM array is configured to output a match result indicative entry lines that match the search key. The first mask circuit is configured to selectively mask first one or more portions of the match result to generate a first masked match result indicative first entry lines among the entry lines that match the search key. The first encoder is configured to encode the first masked match result to identify a matching entry line in the first entry lines as a first search result.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.