DE60220088D1 - Schaltung und verfahren zur ausführung von suchoperationen variabler breite in einem inhaltsadressierbaren speicher - Google Patents
Schaltung und verfahren zur ausführung von suchoperationen variabler breite in einem inhaltsadressierbaren speicherInfo
- Publication number
- DE60220088D1 DE60220088D1 DE60220088T DE60220088T DE60220088D1 DE 60220088 D1 DE60220088 D1 DE 60220088D1 DE 60220088 T DE60220088 T DE 60220088T DE 60220088 T DE60220088 T DE 60220088T DE 60220088 D1 DE60220088 D1 DE 60220088D1
- Authority
- DE
- Germany
- Prior art keywords
- match
- data word
- cam
- search
- word sequence
- 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
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
Landscapes
- Memory System Of A Hierarchy Structure (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Executing Machine-Instructions (AREA)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US32521701P | 2001-09-28 | 2001-09-28 | |
US325217P | 2001-09-28 | ||
US997296 | 2001-11-30 | ||
US09/997,296 US6708250B2 (en) | 2001-09-28 | 2001-11-30 | Circuit and method for performing variable width searches in a content addressable memory |
PCT/CA2002/001464 WO2003030178A1 (en) | 2001-09-28 | 2002-09-27 | Circuit and method for performing variable width searches in a content addressable memory |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60220088D1 true DE60220088D1 (de) | 2007-06-21 |
DE60220088T2 DE60220088T2 (de) | 2007-11-08 |
Family
ID=26984826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60220088T Expired - Lifetime DE60220088T2 (de) | 2001-09-28 | 2002-09-27 | Schaltung und verfahren zur ausführung von suchoperationen variabler breite in einem inhaltsadressierbaren speicher |
Country Status (6)
Country | Link |
---|---|
US (1) | US6708250B2 (de) |
EP (1) | EP1451826B1 (de) |
CN (1) | CN100401425C (de) |
AT (1) | ATE362179T1 (de) |
DE (1) | DE60220088T2 (de) |
WO (1) | WO2003030178A1 (de) |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7110407B1 (en) | 1999-09-23 | 2006-09-19 | Netlogic Microsystems, Inc. | Method and apparatus for performing priority encoding in a segmented classification system using enable signals |
US7487200B1 (en) * | 1999-09-23 | 2009-02-03 | Netlogic Microsystems, Inc. | Method and apparatus for performing priority encoding in a segmented classification system |
CA2307240C (en) * | 2000-05-01 | 2011-04-12 | Mosaid Technologies Incorporated | Matchline sense circuit and method |
US20030145178A1 (en) * | 2002-01-31 | 2003-07-31 | Charles Jiang | Circuit and method for detecting multiple matches in a content addressable memory |
US6972978B1 (en) | 2002-03-15 | 2005-12-06 | Integrated Device Technology, Inc. | Content addressable memory (CAM) devices with block select and pipelined virtual sector look-up control and methods of operating same |
US6867991B1 (en) * | 2003-07-03 | 2005-03-15 | Integrated Device Technology, Inc. | Content addressable memory devices with virtual partitioning and methods of operating the same |
US6965519B1 (en) | 2003-06-18 | 2005-11-15 | Integrated Device Technology, Inc. | Content addressable memory (CAM) devices that utilize dual-capture match line signal repeaters to achieve desired speed/power tradeoff and methods of operating same |
US6760242B1 (en) | 2002-04-10 | 2004-07-06 | Integrated Device Technology, Inc. | Content addressable memory (CAM) devices having speed adjustable match line signal repeaters therein |
US6879532B1 (en) | 2002-04-10 | 2005-04-12 | Integrated Device Technology, Inc. | Content addressable and random access memory devices having high-speed sense amplifiers therein with low power consumption requirements |
US6967856B1 (en) | 2002-04-10 | 2005-11-22 | Integrated Device Technology, Inc. | Content addressable memory (CAM) devices that utilize segmented match lines and word lines to support pipelined search and write operations and methods of operating same |
US6771525B2 (en) * | 2002-05-31 | 2004-08-03 | Mosaid Technologies Incorporated | Method and apparatus for performing variable word width searches in a content addressable memory |
US7136960B2 (en) * | 2002-06-14 | 2006-11-14 | Integrated Device Technology, Inc. | Hardware hashing of an input of a content addressable memory (CAM) to emulate a wider CAM |
US7171439B2 (en) * | 2002-06-14 | 2007-01-30 | Integrated Device Technology, Inc. | Use of hashed content addressable memory (CAM) to accelerate content-aware searches |
US6775166B2 (en) * | 2002-08-30 | 2004-08-10 | Mosaid Technologies, Inc. | Content addressable memory architecture |
US7136961B2 (en) * | 2002-11-13 | 2006-11-14 | Mosaid Technologies, Inc. | Method and apparatus for wide word deletion in content addressable memories |
US7152141B2 (en) * | 2003-07-31 | 2006-12-19 | Micron Technology, Inc. | Obtaining search results for content addressable memory |
US8909726B1 (en) * | 2003-08-27 | 2014-12-09 | Cisco Technology, Inc. | Priority based anycast routing |
US7471682B2 (en) * | 2003-10-17 | 2008-12-30 | Rmi Corporation | Method and apparatus for providing internal table extensibility based on product configuration |
US7406174B2 (en) * | 2003-10-21 | 2008-07-29 | Widevine Technologies, Inc. | System and method for n-dimensional encryption |
US7516147B2 (en) * | 2003-10-23 | 2009-04-07 | Sumisho Computer Systems Corporation | URL system and method for licensing content |
US20050213359A1 (en) * | 2004-03-26 | 2005-09-29 | Kim Jin K | Hybrid content addressable memory |
US7836044B2 (en) | 2004-06-22 | 2010-11-16 | Google Inc. | Anticipated query generation and processing in a search engine |
US7487145B1 (en) | 2004-06-22 | 2009-02-03 | Google Inc. | Method and system for autocompletion using ranked results |
US7092270B2 (en) * | 2004-06-30 | 2006-08-15 | International Business Machines Corporation | Apparatus and method for detecting multiple hits in CAM arrays |
GB2419197A (en) * | 2004-10-14 | 2006-04-19 | 3Com Corp | A content addressable memory storing wide words partitioned into segments |
US7290084B2 (en) * | 2004-11-02 | 2007-10-30 | Integrated Device Technology, Inc. | Fast collision detection for a hashed content addressable memory (CAM) using a random access memory |
US7499940B1 (en) * | 2004-11-11 | 2009-03-03 | Google Inc. | Method and system for URL autocompletion using ranked results |
US20060106769A1 (en) | 2004-11-12 | 2006-05-18 | Gibbs Kevin A | Method and system for autocompletion for languages having ideographs and phonetic characters |
US7570503B1 (en) | 2005-05-20 | 2009-08-04 | Netlogic Microsystems, Inc. | Ternary content addressable memory (TCAM) cells with low signal line numbers |
US8010523B2 (en) | 2005-12-30 | 2011-08-30 | Google Inc. | Dynamic search box for web browser |
US8244750B2 (en) * | 2007-03-23 | 2012-08-14 | Microsoft Corporation | Related search queries for a webpage and their applications |
US8255623B2 (en) * | 2007-09-24 | 2012-08-28 | Nvidia Corporation | Ordered storage structure providing enhanced access to stored items |
US8139871B2 (en) * | 2007-12-17 | 2012-03-20 | Texas Instruments Incorporated | Circuit and method for adaptive, lossless compression of successive digital data |
US8312032B2 (en) | 2008-07-10 | 2012-11-13 | Google Inc. | Dictionary suggestions for partial user entries |
US7944724B2 (en) | 2009-04-28 | 2011-05-17 | Netlogic Microsystems, Inc. | Ternary content addressable memory having reduced leakage effects |
WO2010139277A1 (en) | 2009-06-03 | 2010-12-09 | Google Inc. | Autocompletion for partially entered query |
CN101567214B (zh) * | 2009-06-10 | 2011-06-15 | 哈尔滨工业大学 | 适应九管存储单元读写功能的行选择器 |
CN102906739A (zh) * | 2010-02-18 | 2013-01-30 | 井上克己 | 具备信息过滤检测功能的存储器、使用该存储器的信息检测方法、含有该存储器的装置、信息检测方法、存储器使用方法及存储器地址比较电路 |
US7920397B1 (en) | 2010-04-30 | 2011-04-05 | Netlogic Microsystems, Inc. | Memory device having bit line leakage compensation |
US8407413B1 (en) * | 2010-11-05 | 2013-03-26 | Netapp, Inc | Hardware flow classification for data storage services |
JP2013191255A (ja) * | 2012-03-14 | 2013-09-26 | Renesas Electronics Corp | 内容参照メモリシステム |
CN103345937B (zh) * | 2013-06-18 | 2016-08-03 | 苏州雄立科技有限公司 | 一种在比较搜索芯片中支持多种查找模式的优先级编码方法 |
KR20170111649A (ko) * | 2016-03-29 | 2017-10-12 | 에스케이하이닉스 주식회사 | 메모리 시스템 및 그것의 동작 방법 |
CN110309374A (zh) * | 2019-05-22 | 2019-10-08 | 深圳市金泰克半导体有限公司 | 一种解析方法、系统、终端设备及计算机可读存储介质 |
US10903849B1 (en) * | 2020-07-20 | 2021-01-26 | Micron Technology, Inc. | Bit string compression |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1468753A (en) * | 1974-05-09 | 1977-03-30 | Honeywell Invormation Systems | Associative memory |
US4366551A (en) * | 1977-06-24 | 1982-12-28 | Holtz Klaus E | Associative memory search system |
US4296475A (en) * | 1978-12-19 | 1981-10-20 | U.S. Philips Corporation | Word-organized, content-addressable memory |
US4254476A (en) * | 1979-06-25 | 1981-03-03 | Sanders Associates, Inc. | Associative processor |
JPH0743947B2 (ja) * | 1985-09-20 | 1995-05-15 | 株式会社日立製作所 | 内容呼び出しメモリ |
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 |
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 |
US6118682A (en) * | 1998-07-07 | 2000-09-12 | Vlsi Technology, Inc. | Method and apparatus for reading multiple matched addresses |
US6253280B1 (en) * | 1999-03-19 | 2001-06-26 | Lara Technology, Inc. | Programmable multiple word width CAM architecture |
JP3920501B2 (ja) * | 1999-04-02 | 2007-05-30 | 株式会社東芝 | 不揮発性半導体記憶装置及びそのデータ消去制御方法 |
CA2317387A1 (en) | 1999-09-10 | 2001-03-10 | Sibercore Technologies, Inc. | Variable width content addressable memory device for searching variable width data |
JP2001023379A (ja) * | 2000-01-01 | 2001-01-26 | Mitsubishi Electric Corp | 連想記憶回路 |
US6243281B1 (en) * | 2000-06-14 | 2001-06-05 | Netlogic Microsystems, Inc. | Method and apparatus for accessing a segment of CAM cells in an intra-row configurable CAM system |
US6252789B1 (en) | 2000-06-14 | 2001-06-26 | Netlogic Microsystems, Inc. | Inter-row configurability of content addressable memory |
-
2001
- 2001-11-30 US US09/997,296 patent/US6708250B2/en not_active Expired - Lifetime
-
2002
- 2002-09-27 AT AT02764431T patent/ATE362179T1/de not_active IP Right Cessation
- 2002-09-27 CN CNB028191889A patent/CN100401425C/zh not_active Expired - Fee Related
- 2002-09-27 DE DE60220088T patent/DE60220088T2/de not_active Expired - Lifetime
- 2002-09-27 WO PCT/CA2002/001464 patent/WO2003030178A1/en active IP Right Grant
- 2002-09-27 EP EP02764431A patent/EP1451826B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ATE362179T1 (de) | 2007-06-15 |
DE60220088T2 (de) | 2007-11-08 |
US6708250B2 (en) | 2004-03-16 |
CN1561522A (zh) | 2005-01-05 |
EP1451826B1 (de) | 2007-05-09 |
WO2003030178A1 (en) | 2003-04-10 |
US20030070039A1 (en) | 2003-04-10 |
EP1451826A1 (de) | 2004-09-01 |
CN100401425C (zh) | 2008-07-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: NVIDEA CORP., SANTA CLARA, CALIF., US |
|
8327 | Change in the person/name/address of the patent owner |
Owner name: TRACE STEP HOLDINGS, LLC, DOVER, DEL., US |
|
8328 | Change in the person/name/address of the agent |
Representative=s name: NOTARBARTOLO & GERVASI GMBH, 80336 MUENCHEN |