CA2279175A1 - Method and apparatus for split-brain avoidance in a multi-process or system - Google Patents

Method and apparatus for split-brain avoidance in a multi-process or system Download PDF

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Publication number
CA2279175A1
CA2279175A1 CA002279175A CA2279175A CA2279175A1 CA 2279175 A1 CA2279175 A1 CA 2279175A1 CA 002279175 A CA002279175 A CA 002279175A CA 2279175 A CA2279175 A CA 2279175A CA 2279175 A1 CA2279175 A1 CA 2279175A1
Authority
CA
Canada
Prior art keywords
processor
processors
stage
regroup
still operating
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.)
Abandoned
Application number
CA002279175A
Other languages
English (en)
French (fr)
Inventor
Robert L. Jardine
Karoor S. Krishnakumar
Murali Basavaiah
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.)
Tandem Computers Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2279175A1 publication Critical patent/CA2279175A1/en
Abandoned legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/0706—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment
    • G06F11/0721—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment within a central processing unit [CPU]
    • G06F11/0724—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment within a central processing unit [CPU] in a multiprocessor or a multi-core unit
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1415—Saving, restoring, recovering or retrying at system level
    • G06F11/142—Reconfiguring to eliminate the error
    • G06F11/1425—Reconfiguring to eliminate the error by reconfiguration of node membership
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/0751—Error or fault detection not based on redundancy
    • G06F11/0754—Error or fault detection not based on redundancy by exceeding limits
    • G06F11/0757—Error or fault detection not based on redundancy by exceeding limits by exceeding a time limit, i.e. time-out, e.g. watchdogs

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Hardware Redundancy (AREA)
  • Multi Processors (AREA)
  • Computer And Data Communications (AREA)
CA002279175A 1997-01-28 1998-01-22 Method and apparatus for split-brain avoidance in a multi-process or system Abandoned CA2279175A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US08/790,030 US6002851A (en) 1997-01-28 1997-01-28 Method and apparatus for node pruning a multi-processor system for maximal, full connection during recovery
US08/790,269 US5991518A (en) 1997-01-28 1997-01-28 Method and apparatus for split-brain avoidance in a multi-processor system
US08/789,257 US5884018A (en) 1997-01-28 1997-01-28 Method and apparatus for distributed agreement on processor membership in a multi-processor system
US08/790,269 1997-01-28
PCT/US1998/001379 WO1998033121A1 (en) 1997-01-28 1998-01-22 Method and apparatus for split-brain avoidance in a multi-process or system

Publications (1)

Publication Number Publication Date
CA2279175A1 true CA2279175A1 (en) 1998-07-30

Family

ID=25149431

Family Applications (3)

Application Number Title Priority Date Filing Date
CA002279175A Abandoned CA2279175A1 (en) 1997-01-28 1998-01-22 Method and apparatus for split-brain avoidance in a multi-process or system
CA002275241A Abandoned CA2275241A1 (en) 1997-01-28 1998-01-23 Distributed agreement on processor membership in a multi-processor system
CA002279185A Abandoned CA2279185A1 (en) 1997-01-28 1998-01-27 Method and apparatus for node pruning a multi-processor system for maximal, full connection during recovery

Family Applications After (2)

Application Number Title Priority Date Filing Date
CA002275241A Abandoned CA2275241A1 (en) 1997-01-28 1998-01-23 Distributed agreement on processor membership in a multi-processor system
CA002279185A Abandoned CA2279185A1 (en) 1997-01-28 1998-01-27 Method and apparatus for node pruning a multi-processor system for maximal, full connection during recovery

Country Status (5)

Country Link
US (3) US6002851A (enExample)
EP (3) EP1012717A4 (enExample)
JP (3) JP2001511922A (enExample)
CA (3) CA2279175A1 (enExample)
WO (3) WO1998033121A1 (enExample)

Families Citing this family (104)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09245007A (ja) * 1996-03-11 1997-09-19 Toshiba Corp 情報処理装置及び情報処理方法
JP3537281B2 (ja) * 1997-01-17 2004-06-14 株式会社日立製作所 共有ディスク型多重系システム
US6802062B1 (en) * 1997-04-01 2004-10-05 Hitachi, Ltd. System with virtual machine movable between virtual machine systems and control method
JP2001515244A (ja) * 1997-09-05 2001-09-18 サン・マイクロシステムズ・インコーポレーテッド スケーリング可能な共用メモリ・マルチプロセッサ・システム
US6260068B1 (en) 1998-06-10 2001-07-10 Compaq Computer Corporation Method and apparatus for migrating resources in a multi-processor computer system
US6199179B1 (en) * 1998-06-10 2001-03-06 Compaq Computer Corporation Method and apparatus for failure recovery in a multi-processor computer system
US6381682B2 (en) 1998-06-10 2002-04-30 Compaq Information Technologies Group, L.P. Method and apparatus for dynamically sharing memory in a multiprocessor system
US6633916B2 (en) 1998-06-10 2003-10-14 Hewlett-Packard Development Company, L.P. Method and apparatus for virtual resource handling in a multi-processor computer system
US6542926B2 (en) 1998-06-10 2003-04-01 Compaq Information Technologies Group, L.P. Software partitioned multi-processor system with flexible resource sharing levels
US6647508B2 (en) 1997-11-04 2003-11-11 Hewlett-Packard Development Company, L.P. Multiprocessor computer architecture with multiple operating system instances and software controlled resource allocation
US6332180B1 (en) 1998-06-10 2001-12-18 Compaq Information Technologies Group, L.P. Method and apparatus for communication in a multi-processor computer system
JPH11143729A (ja) * 1997-11-07 1999-05-28 Nec Corp フォールトトレラントコンピュータ
JP3866426B2 (ja) * 1998-11-05 2007-01-10 日本電気株式会社 クラスタ計算機におけるメモリ障害処理方法及びクラスタ計算機
US6247143B1 (en) * 1998-06-30 2001-06-12 Sun Microsystems, Inc. I/O handling for a multiprocessor computer system
US6389551B1 (en) * 1998-12-17 2002-05-14 Steeleye Technology, Inc. Method of preventing false or unnecessary failovers in a high availability cluster by using a quorum service
US6687847B1 (en) * 1999-04-21 2004-02-03 Cornell Research Foundation, Inc. Failure detector with consensus protocol
US7076783B1 (en) 1999-05-28 2006-07-11 Oracle International Corporation Providing figure of merit vote from application executing on a partitioned cluster
US7020695B1 (en) * 1999-05-28 2006-03-28 Oracle International Corporation Using a cluster-wide shared repository to provide the latest consistent definition of the cluster (avoiding the partition-in time problem)
EP1072977B1 (en) * 1999-07-28 2003-09-03 Motorola, Inc. A system for initializing a distributed computer system and a method thereof
US6490693B1 (en) * 1999-08-31 2002-12-03 International Business Machines Corporation Dynamic reconfiguration of a quorum group of processors in a distributed computing system
US6622260B1 (en) 1999-12-30 2003-09-16 Suresh Marisetty System abstraction layer, processor abstraction layer, and operating system error handling
US6748429B1 (en) 2000-01-10 2004-06-08 Sun Microsystems, Inc. Method to dynamically change cluster or distributed system configuration
US6862613B1 (en) 2000-01-10 2005-03-01 Sun Microsystems, Inc. Method and apparatus for managing operations of clustered computer systems
US6769008B1 (en) 2000-01-10 2004-07-27 Sun Microsystems, Inc. Method and apparatus for dynamically altering configurations of clustered computer systems
US6658587B1 (en) 2000-01-10 2003-12-02 Sun Microsystems, Inc. Emulation of persistent group reservations
US6757836B1 (en) * 2000-01-10 2004-06-29 Sun Microsystems, Inc. Method and apparatus for resolving partial connectivity in a clustered computing system
US6789213B2 (en) 2000-01-10 2004-09-07 Sun Microsystems, Inc. Controlled take over of services by remaining nodes of clustered computing system
JP2001345428A (ja) 2000-03-27 2001-12-14 Toshiba Corp 半導体装置とその製造方法
US6675315B1 (en) * 2000-05-05 2004-01-06 Oracle International Corp. Diagnosing crashes in distributed computing systems
US6725261B1 (en) * 2000-05-31 2004-04-20 International Business Machines Corporation Method, system and program products for automatically configuring clusters of a computing environment
US7047196B2 (en) 2000-06-08 2006-05-16 Agiletv Corporation System and method of voice recognition near a wireline node of a network supporting cable television and/or video delivery
US7711790B1 (en) * 2000-08-24 2010-05-04 Foundry Networks, Inc. Securing an accessible computer system
US6665811B1 (en) * 2000-08-24 2003-12-16 Hewlett-Packard Development Company, L.P. Method and apparatus for checking communicative connectivity between processor units of a distributed system
US7386621B1 (en) 2000-08-31 2008-06-10 Sharp Laboratories Of America, Inc. Efficient and reliable transmission via a hybrid broadcast-point-to-point system
US20020040425A1 (en) * 2000-10-04 2002-04-04 David Chaiken Multi-dimensional integrated circuit connection network using LDT
US6965936B1 (en) * 2000-12-06 2005-11-15 Novell, Inc. Method for detecting and resolving a partition condition in a cluster
US6785678B2 (en) 2000-12-21 2004-08-31 Emc Corporation Method of improving the availability of a computer clustering system through the use of a network medium link state function
US7076750B1 (en) * 2001-02-06 2006-07-11 Advanced Micro Devices, Inc. Method and apparatus for generating trenches for vias
US8095370B2 (en) 2001-02-16 2012-01-10 Agiletv Corporation Dual compression voice recordation non-repudiation system
EP1374360A4 (en) * 2001-02-24 2010-02-17 Ibm ERROR TOLERANCE IN A SUPERCOMPUTER THROUGH DYNAMIC REPARTITIONING
US20020124201A1 (en) * 2001-03-01 2002-09-05 International Business Machines Corporation Method and system for log repair action handling on a logically partitioned multiprocessing system
US6952766B2 (en) 2001-03-15 2005-10-04 International Business Machines Corporation Automated node restart in clustered computer system
US6918051B2 (en) * 2001-04-06 2005-07-12 International Business Machines Corporation Node shutdown in clustered computer system
US6820221B2 (en) * 2001-04-13 2004-11-16 Hewlett-Packard Development Company, L.P. System and method for detecting process and network failures in a distributed system
US6931564B2 (en) * 2001-07-13 2005-08-16 International Business Machines Corporation Failure isolation in a distributed processing system employing relative location information
US6880100B2 (en) * 2001-07-18 2005-04-12 Smartmatic Corp. Peer-to-peer fault detection
US6925582B2 (en) * 2001-08-01 2005-08-02 International Business Machines Corporation Forwarding of diagnostic messages in a group
US6766482B1 (en) 2001-10-31 2004-07-20 Extreme Networks Ethernet automatic protection switching
US20030182479A1 (en) * 2002-03-22 2003-09-25 Dieter Massa Implementing clustering in raid controllers
US7631066B1 (en) * 2002-03-25 2009-12-08 Symantec Operating Corporation System and method for preventing data corruption in computer system clusters
US7092990B2 (en) * 2002-06-26 2006-08-15 International Business Machines Corporation Handling node address failure in a distributed nodal system of processors
US7877483B1 (en) * 2002-10-28 2011-01-25 Cisco Technology, Inc. Virtual local area network pruning protocol
US20040153558A1 (en) * 2002-10-31 2004-08-05 Mesut Gunduc System and method for providing java based high availability clustering framework
DE10328059A1 (de) * 2003-06-23 2005-01-13 Robert Bosch Gmbh Verfahren und Vorrichtung zur Überwachung eines verteilten Systems
US7739541B1 (en) 2003-07-25 2010-06-15 Symantec Operating Corporation System and method for resolving cluster partitions in out-of-band storage virtualization environments
US7987250B2 (en) * 2003-07-30 2011-07-26 International Business Machines Corporation Maximum clique in a graph
US7231543B2 (en) * 2004-01-14 2007-06-12 Hewlett-Packard Development Company, L.P. Systems and methods for fault-tolerant processing with processor regrouping based on connectivity conditions
JP3808874B2 (ja) * 2004-03-12 2006-08-16 東芝ソリューション株式会社 分散システム及び多重化制御方法
US7293198B2 (en) 2004-03-25 2007-11-06 Emc Corporation Techniques for maintaining operation of data storage system during a failure
US8020141B2 (en) * 2004-12-06 2011-09-13 Microsoft Corporation Operating-system process construction
US7882317B2 (en) * 2004-12-06 2011-02-01 Microsoft Corporation Process isolation using protection domains
US7451435B2 (en) * 2004-12-07 2008-11-11 Microsoft Corporation Self-describing artifacts and application abstractions
US7600232B2 (en) * 2004-12-07 2009-10-06 Microsoft Corporation Inter-process communications employing bi-directional message conduits
JP4182486B2 (ja) * 2004-12-20 2008-11-19 日本電気株式会社 フォールト・トレラント・コンピュータ・リセット方法及びそのシステム
US7590885B2 (en) * 2005-04-26 2009-09-15 Hewlett-Packard Development Company, L.P. Method and system of copying memory from a source processor to a target processor by duplicating memory writes
US7933966B2 (en) * 2005-04-26 2011-04-26 Hewlett-Packard Development Company, L.P. Method and system of copying a memory area between processor elements for lock-step execution
US7332818B2 (en) * 2005-05-12 2008-02-19 Endicott Interconnect Technologies, Inc. Multi-chip electronic package with reduced line skew and circuitized substrate for use therein
US7739677B1 (en) 2005-05-27 2010-06-15 Symantec Operating Corporation System and method to prevent data corruption due to split brain in shared data clusters
US8849968B2 (en) 2005-06-20 2014-09-30 Microsoft Corporation Secure and stable hosting of third-party extensions to web services
US8074231B2 (en) * 2005-10-26 2011-12-06 Microsoft Corporation Configuration of isolated extensions and device drivers
US20070094495A1 (en) * 2005-10-26 2007-04-26 Microsoft Corporation Statically Verifiable Inter-Process-Communicative Isolated Processes
US20070168507A1 (en) * 2005-11-15 2007-07-19 Microsoft Corporation Resource arbitration via persistent reservation
US20070174655A1 (en) * 2006-01-18 2007-07-26 Brown Kyle G System and method of implementing automatic resource outage handling
US8078907B2 (en) * 2006-01-19 2011-12-13 Silicon Graphics, Inc. Failsoft system for multiple CPU system
US8032898B2 (en) * 2006-06-30 2011-10-04 Microsoft Corporation Kernel interface with categorized kernel objects
US8789063B2 (en) * 2007-03-30 2014-07-22 Microsoft Corporation Master and subordinate operating system kernels for heterogeneous multiprocessor systems
US20080244507A1 (en) * 2007-03-30 2008-10-02 Microsoft Corporation Homogeneous Programming For Heterogeneous Multiprocessor Systems
US20080263379A1 (en) * 2007-04-17 2008-10-23 Advanced Micro Devices, Inc. Watchdog timer device and methods thereof
US7826455B2 (en) * 2007-11-02 2010-11-02 Cisco Technology, Inc. Providing single point-of-presence across multiple processors
US7836335B2 (en) * 2008-04-11 2010-11-16 International Business Machines Corporation Cost-reduced redundant service processor configuration
US8145880B1 (en) 2008-07-07 2012-03-27 Ovics Matrix processor data switch routing systems and methods
US7958341B1 (en) 2008-07-07 2011-06-07 Ovics Processing stream instruction in IC of mesh connected matrix of processors containing pipeline coupled switch transferring messages over consecutive cycles from one link to another link or memory
US8327114B1 (en) 2008-07-07 2012-12-04 Ovics Matrix processor proxy systems and methods
US8131975B1 (en) 2008-07-07 2012-03-06 Ovics Matrix processor initialization systems and methods
US7870365B1 (en) 2008-07-07 2011-01-11 Ovics Matrix of processors with data stream instruction execution pipeline coupled to data switch linking to neighbor units by non-contentious command channel / data channel
KR101724053B1 (ko) 2008-12-03 2017-04-06 인터디지탈 패튼 홀딩스, 인크 캐리어 집적에 대한 업링크 파워 헤드룸 보고
EP2484164B1 (en) 2009-10-01 2014-07-16 InterDigital Patent Holdings, Inc. Power control methods and apparatus
US8108712B1 (en) * 2009-10-30 2012-01-31 Hewlett-Packard Development Company, L.P. Method and apparatus for removing a computer from a computer cluster observing failure
US8730829B2 (en) 2010-10-01 2014-05-20 Mediatek Inc. Indication of user equipment transmit power capacilty in carrier aggregation
US20120239810A1 (en) * 2011-03-18 2012-09-20 International Business Machines Corporation System, method and computer program product for clustered computer environment partition resolution
BR112014007765B1 (pt) 2011-09-30 2022-03-22 Interdigital Patent Holdings, Inc Unidade de transmissão/recepção sem fio para transmissão em múltiplos pontos em comunicação sem fio
US8819484B2 (en) * 2011-10-07 2014-08-26 International Business Machines Corporation Dynamically reconfiguring a primary processor identity within a multi-processor socket server
JP5653332B2 (ja) * 2011-10-28 2015-01-14 株式会社東芝 周期エラー検出方法および周期エラー検出回路
JP6244009B2 (ja) 2013-04-03 2017-12-06 インターデイジタル パテント ホールディングス インコーポレイテッド 累積された送信電力制御コマンドおよび対応するアップリンクサブフレームセットに基づいてアップリンク送信電力を制御するための方法および装置
US9450852B1 (en) * 2014-01-03 2016-09-20 Juniper Networks, Inc. Systems and methods for preventing split-brain scenarios in high-availability clusters
US10007629B2 (en) 2015-01-16 2018-06-26 Oracle International Corporation Inter-processor bus link and switch chip failure recovery
CN105974356B (zh) * 2016-07-22 2019-02-05 国网浙江省电力公司电力科学研究院 一种电力计量自动化检定流水线故障诊断方法
US10606714B2 (en) 2017-09-05 2020-03-31 International Business Machines Corporation Stopping central processing units for data collection based on event categories of events
US10740030B2 (en) * 2017-09-06 2020-08-11 International Business Machines Corporation Stopping a plurality of central processing units for data collection based on attributes of tasks
US10528408B2 (en) 2018-03-06 2020-01-07 International Business Machines Corporation Symmetric connectivity over SCSI where the initiator and target are symmetric
JP7147525B2 (ja) * 2018-06-08 2022-10-05 住友電装株式会社 通信装置及び制御方法
CN113169907B (zh) * 2018-06-08 2022-06-07 住友电装株式会社 通信装置及控制方法
US11042443B2 (en) * 2018-10-17 2021-06-22 California Institute Of Technology Fault tolerant computer systems and methods establishing consensus for which processing system should be the prime string
US11500743B2 (en) 2019-02-01 2022-11-15 Nuodb, Inc. Node failure detection and resolution in distributed databases

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4228496A (en) * 1976-09-07 1980-10-14 Tandem Computers Incorporated Multiprocessor system
US4323966A (en) * 1980-02-05 1982-04-06 The Bendix Corporation Operations controller for a fault-tolerant multiple computer system
US4321666A (en) * 1980-02-05 1982-03-23 The Bendix Corporation Fault handler for a multiple computer system
US4399531A (en) * 1980-09-29 1983-08-16 Rockwell International Corporation Distributed digital data communications network
US4340776A (en) * 1980-10-29 1982-07-20 Siemens Corporation Modular telecommunication system
US4590554A (en) * 1982-11-23 1986-05-20 Parallel Computers Systems, Inc. Backup fault tolerant computer system
JPS60191536A (ja) * 1984-03-13 1985-09-30 Nec Corp デ−タ処理装置障害通知方式
US4718002A (en) * 1985-06-05 1988-01-05 Tandem Computers Incorporated Method for multiprocessor communications
US4757442A (en) * 1985-06-17 1988-07-12 Nec Corporation Re-synchronization system using common memory bus to transfer restart data from non-faulty processor to failed processor
US4868818A (en) * 1987-10-29 1989-09-19 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Fault tolerant hypercube computer system architecture
US4879716A (en) * 1987-12-23 1989-11-07 Bull Hn Information Systems Inc. Resilient data communications system
JPH02287858A (ja) * 1989-04-28 1990-11-27 Toshiba Corp 分散処理システムのリスタート方式
US4939752A (en) * 1989-05-31 1990-07-03 At&T Company Distributed timing recovery for a distributed communication system
JP3118855B2 (ja) * 1991-04-10 2000-12-18 株式会社日立製作所 マルチプロセッサシステム
JPH05128080A (ja) * 1991-10-14 1993-05-25 Mitsubishi Electric Corp 情報処理装置
US5367697A (en) * 1991-10-22 1994-11-22 Bull Hn Information Systems Inc. Means for providing a graceful power shut-down capability in a multiprocessor system having certain processors not inherently having a power shut-down capability
US5452441A (en) * 1994-03-30 1995-09-19 At&T Corp. System and method for on-line state restoration of one or more processors in an N module redundant voting processor system
US5592610A (en) * 1994-12-21 1997-01-07 Intel Corporation Method and apparatus for enhancing the fault-tolerance of a network
US5687308A (en) * 1995-06-07 1997-11-11 Tandem Computers Incorporated Method to improve tolerance of non-homogeneous power outages
US5666486A (en) * 1995-06-23 1997-09-09 Data General Corporation Multiprocessor cluster membership manager framework

Also Published As

Publication number Publication date
US5884018A (en) 1999-03-16
CA2279185A1 (en) 1998-08-13
WO1998033120A1 (en) 1998-07-30
JP2001509291A (ja) 2001-07-10
JP2001511922A (ja) 2001-08-14
WO1998034457A2 (en) 1998-08-13
JP2001511278A (ja) 2001-08-07
WO1998033121A1 (en) 1998-07-30
CA2275241A1 (en) 1998-07-30
US5991518A (en) 1999-11-23
WO1998034457A3 (en) 1998-11-19
EP0954783A4 (en) 2005-10-26
EP0954783A1 (en) 1999-11-10
EP1012728A4 (en) 2005-07-20
EP1012717A4 (en) 2005-07-06
EP1012717A1 (en) 2000-06-28
US6002851A (en) 1999-12-14
EP1012728A2 (en) 2000-06-28

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