DE60102230D1 - Mehrfacheintragsvergleich in einem inhaltsadressierbaren speicher - Google Patents

Mehrfacheintragsvergleich in einem inhaltsadressierbaren speicher

Info

Publication number
DE60102230D1
DE60102230D1 DE60102230T DE60102230T DE60102230D1 DE 60102230 D1 DE60102230 D1 DE 60102230D1 DE 60102230 T DE60102230 T DE 60102230T DE 60102230 T DE60102230 T DE 60102230T DE 60102230 D1 DE60102230 D1 DE 60102230D1
Authority
DE
Germany
Prior art keywords
cam
comparand
cells
fractional parts
carry
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE60102230T
Other languages
English (en)
Other versions
DE60102230T2 (de
Inventor
Oerjan Kling
Otto Ahl
Gunnar Torkelsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of DE60102230D1 publication Critical patent/DE60102230D1/de
Application granted granted Critical
Publication of DE60102230T2 publication Critical patent/DE60102230T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C15/00—Digital stores in which information comprising one or more characteristic parts is written into the store and in which information is read-out by searching for one or more of these characteristic parts, i.e. associative or content-addressed stores
    • G11C15/04—Digital stores in which information comprising one or more characteristic parts is written into the store and in which information is read-out by searching for one or more of these characteristic parts, i.e. associative or content-addressed stores using semiconductor elements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C15/00—Digital stores in which information comprising one or more characteristic parts is written into the store and in which information is read-out by searching for one or more of these characteristic parts, i.e. associative or content-addressed stores
DE60102230T 2000-03-08 2001-03-07 Mehrfacheintragsvergleich in einem inhaltsadressierbaren speicher Expired - Lifetime DE60102230T2 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US18789500P 2000-03-08 2000-03-08
US187895P 2000-03-08
US666844 2000-09-21
US09/666,844 US6259620B1 (en) 2000-03-08 2000-09-21 Multiple entry matching in a content addressable memory
PCT/SE2001/000483 WO2001067456A2 (en) 2000-03-08 2001-03-07 Multiple entry matching in a content addressable memory

Publications (2)

Publication Number Publication Date
DE60102230D1 true DE60102230D1 (de) 2004-04-08
DE60102230T2 DE60102230T2 (de) 2005-03-03

Family

ID=26883517

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60102230T Expired - Lifetime DE60102230T2 (de) 2000-03-08 2001-03-07 Mehrfacheintragsvergleich in einem inhaltsadressierbaren speicher

Country Status (6)

Country Link
US (1) US6259620B1 (de)
EP (1) EP1281178B1 (de)
AT (1) ATE261177T1 (de)
AU (1) AU2001239616A1 (de)
DE (1) DE60102230T2 (de)
WO (1) WO2001067456A2 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6615210B1 (en) * 2000-02-04 2003-09-02 Broad Web Corporation Bit stream ternary match scheme
JP2002237190A (ja) * 2001-02-07 2002-08-23 Kawasaki Microelectronics Kk 連想メモリ装置およびその構成方法
US6512684B2 (en) * 2001-06-11 2003-01-28 International Business Machines Corporation Content addressable memory having cascaded sub-entry architecture
US7136961B2 (en) 2002-11-13 2006-11-14 Mosaid Technologies, Inc. Method and apparatus for wide word deletion in content addressable memories
US7181568B2 (en) * 2004-03-25 2007-02-20 Intel Corporation Content addressable memory to identify subtag matches
US20060212426A1 (en) * 2004-12-21 2006-09-21 Udaya Shakara Efficient CAM-based techniques to perform string searches in packet payloads
US20060190679A1 (en) * 2005-02-18 2006-08-24 Albrecht Alan R Content addressable memory supporting multiple width searches
US8050185B2 (en) * 2005-08-24 2011-11-01 Hewlett-Packard Development Company, L.P. Sampling of network traffic based on CAM lookup
RU2509383C2 (ru) * 2012-04-06 2014-03-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Юго-Западный государственный университет" (ЮЗГУ) Способ параллельного поиска и замены строки и однородная запоминающая матрица для его реализации
US9859006B1 (en) * 2016-06-17 2018-01-02 Globalfoundries Inc. Algorithmic N search/M write ternary content addressable memory (TCAM)

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4959811A (en) * 1986-11-03 1990-09-25 Texas Instruments Incorporated Content addressable memory including comparison inhibit and shift register circuits
US5440715A (en) * 1990-06-27 1995-08-08 Advanced Micro Devices, Inc. Method and apparatus for expanding the width of a content addressable memory using a continuation bit
US5226005A (en) 1990-11-19 1993-07-06 Unisys Corporation Dual ported content addressable memory cell and array
JP2728819B2 (ja) 1991-12-18 1998-03-18 川崎製鉄株式会社 半導体集積回路
JP2775549B2 (ja) 1992-05-08 1998-07-16 三菱電機株式会社 連想メモリセルおよび連想メモリ回路
GB9213821D0 (en) 1992-06-30 1992-08-12 Inmos Ltd Content addressable memory
US5568415A (en) 1993-02-19 1996-10-22 Digital Equipment Corporation Content addressable memory having a pair of memory cells storing don't care states for address translation
US6000008A (en) 1993-03-11 1999-12-07 Cabletron Systems, Inc. Method and apparatus for matching data items of variable length in a content addressable memory
US5454094A (en) 1993-06-24 1995-09-26 Hal Computer Systems, Inc. Method and apparatus for detecting multiple matches in a content addressable memory
JP3169155B2 (ja) 1993-12-22 2001-05-21 インターナショナル・ビジネス・マシーンズ・コーポレ−ション 情報をキャッシュするための回路
US5568416A (en) 1994-03-24 1996-10-22 Kawasaki Steel Corporation Associative memory
US5446686A (en) 1994-08-02 1995-08-29 Sun Microsystems, Inc. Method and appartus for detecting multiple address matches in a content addressable memory
JP2812262B2 (ja) 1995-08-31 1998-10-22 日本電気株式会社 連想記憶装置
US5796758A (en) 1996-10-08 1998-08-18 International Business Machines Corporation Self-checking content-addressable memory and method of operation for detecting multiple selected word lines
US6081440A (en) * 1998-11-05 2000-06-27 Lara Technology, Inc. Ternary content addressable memory (CAM) having fast insertion and deletion of data values
US5999435A (en) 1999-01-15 1999-12-07 Fast-Chip, Inc. Content addressable memory device
US6108227A (en) * 1999-07-23 2000-08-22 Lara Technology, Inc. Content addressable memory having binary and ternary modes of operation

Also Published As

Publication number Publication date
WO2001067456A3 (en) 2002-02-07
DE60102230T2 (de) 2005-03-03
WO2001067456A2 (en) 2001-09-13
AU2001239616A1 (en) 2001-09-17
US6259620B1 (en) 2001-07-10
ATE261177T1 (de) 2004-03-15
EP1281178B1 (de) 2004-03-03
EP1281178A2 (de) 2003-02-05

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Legal Events

Date Code Title Description
8332 No legal effect for de
8370 Indication related to discontinuation of the patent is to be deleted
8364 No opposition during term of opposition