JP5021639B2 - ストリーミング用制御プロトコルおよびトランスポートプロトコルを使用した、保護付きコンテンツの搬送 - Google Patents

ストリーミング用制御プロトコルおよびトランスポートプロトコルを使用した、保護付きコンテンツの搬送 Download PDF

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JP5021639B2
JP5021639B2 JP2008520256A JP2008520256A JP5021639B2 JP 5021639 B2 JP5021639 B2 JP 5021639B2 JP 2008520256 A JP2008520256 A JP 2008520256A JP 2008520256 A JP2008520256 A JP 2008520256A JP 5021639 B2 JP5021639 B2 JP 5021639B2
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media content
protected media
license
protected
rtsp
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JP2009500944A (ja
JP2009500944A5 (https=
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パカ アナンド
イー．クレメッツ アンダース
ピー．オリベイラ エドアルド
バット サンジェイ
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Microsoft Corp
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Microsoft Corp
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/612—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for unicast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2463/00—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
    • H04L2463/101—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying security measures for digital rights management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Technology Law (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Storage Device Security (AREA)
JP2008520256A 2005-07-07 2006-06-22 ストリーミング用制御プロトコルおよびトランスポートプロトコルを使用した、保護付きコンテンツの搬送 Expired - Fee Related JP5021639B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/176,058 US7769880B2 (en) 2005-07-07 2005-07-07 Carrying protected content using a control protocol for streaming and a transport protocol
US11/176,058 2005-07-07
PCT/US2006/024293 WO2007008362A2 (en) 2005-07-07 2006-06-22 Carrying protected content using a control protocol for streaming and a transport protocol

Publications (3)

Publication Number Publication Date
JP2009500944A JP2009500944A (ja) 2009-01-08
JP2009500944A5 JP2009500944A5 (https=) 2009-08-20
JP5021639B2 true JP5021639B2 (ja) 2012-09-12

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JP2008520256A Expired - Fee Related JP5021639B2 (ja) 2005-07-07 2006-06-22 ストリーミング用制御プロトコルおよびトランスポートプロトコルを使用した、保護付きコンテンツの搬送

Country Status (6)

Country Link
US (1) US7769880B2 (https=)
EP (1) EP1899838B1 (https=)
JP (1) JP5021639B2 (https=)
KR (1) KR101203266B1 (https=)
CN (1) CN101506790B (https=)
WO (1) WO2007008362A2 (https=)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7684566B2 (en) 2005-05-27 2010-03-23 Microsoft Corporation Encryption scheme for streamed multimedia content protected by rights management system
US8321690B2 (en) 2005-08-11 2012-11-27 Microsoft Corporation Protecting digital media of various content types
GB2435565B (en) * 2006-08-09 2008-02-20 Cvon Services Oy Messaging system
US8839005B2 (en) * 2006-09-13 2014-09-16 Sandisk Technologies Inc. Apparatus for transferring licensed digital content between users
WO2008049955A1 (en) 2006-10-27 2008-05-02 Cvon Innovations Ltd Method and device for managing subscriber connection
GB2436412A (en) * 2006-11-27 2007-09-26 Cvon Innovations Ltd Authentication of network usage for use with message modifying apparatus
FR2909241B1 (fr) * 2006-11-27 2009-06-05 Canon Kk Procedes et dispositifs de gestion dynamique des erreurs de transmission par des points d'interconnexion de reseaux.
GB2445630B (en) * 2007-03-12 2008-11-12 Cvon Innovations Ltd Dynamic message allocation system and method
US20080288310A1 (en) * 2007-05-16 2008-11-20 Cvon Innovation Services Oy Methodologies and systems for mobile marketing and advertising
US8935718B2 (en) * 2007-05-22 2015-01-13 Apple Inc. Advertising management method and system
GB2448957B (en) * 2007-06-20 2009-06-17 Cvon Innovations Ltd Mehtod and system for identifying content items to mobile terminals
GB2452789A (en) * 2007-09-05 2009-03-18 Cvon Innovations Ltd Selecting information content for transmission by identifying a keyword in a previous message
US20090099932A1 (en) * 2007-10-11 2009-04-16 Cvon Innovations Ltd. System and method for searching network users
GB2453810A (en) * 2007-10-15 2009-04-22 Cvon Innovations Ltd System, Method and Computer Program for Modifying Communications by Insertion of a Targeted Media Content or Advertisement
US8325800B2 (en) 2008-05-07 2012-12-04 Microsoft Corporation Encoding streaming media as a high bit rate layer, a low bit rate layer, and one or more intermediate bit rate layers
US8379851B2 (en) 2008-05-12 2013-02-19 Microsoft Corporation Optimized client side rate control and indexed file layout for streaming media
US7949775B2 (en) 2008-05-30 2011-05-24 Microsoft Corporation Stream selection for enhanced media streaming
US8387150B2 (en) * 2008-06-27 2013-02-26 Microsoft Corporation Segmented media content rights management
EP2141860B1 (en) * 2008-07-04 2016-02-24 Alcatel Lucent Method for monitoring events in a communication network
US8265140B2 (en) 2008-09-30 2012-09-11 Microsoft Corporation Fine-grained client-side control of scalable media delivery
US8196177B2 (en) * 2008-10-16 2012-06-05 International Business Machines Corporation Digital rights management (DRM)-enabled policy management for a service provider in a federated environment
US9154532B2 (en) * 2009-04-27 2015-10-06 Zaron Remote Llc Methods and apparatus for transmitting multimedia files in a data network
US8898217B2 (en) 2010-05-06 2014-11-25 Apple Inc. Content delivery based on user terminal events
US8504419B2 (en) 2010-05-28 2013-08-06 Apple Inc. Network-based targeted content delivery based on queue adjustment factors calculated using the weighted combination of overall rank, context, and covariance scores for an invitational content item
US8510658B2 (en) 2010-08-11 2013-08-13 Apple Inc. Population segmentation
US8510309B2 (en) 2010-08-31 2013-08-13 Apple Inc. Selection and delivery of invitational content based on prediction of user interest
US8983978B2 (en) 2010-08-31 2015-03-17 Apple Inc. Location-intention context for content delivery
US8640032B2 (en) 2010-08-31 2014-01-28 Apple Inc. Selection and delivery of invitational content based on prediction of user intent
US8650604B2 (en) * 2010-10-27 2014-02-11 Samsung Electronics Co., Ltd. Method and system for synchronization of audio/video (A/V) stream format change in wireless communication systems
WO2012093202A1 (en) * 2011-01-07 2012-07-12 Nokia Corporation Method and apparatus for signaling presentation
WO2012129549A1 (en) * 2011-03-23 2012-09-27 General Instrument Corporation System and methods for providing live streaming content using digital rights management-based key management
US8676952B2 (en) * 2011-09-13 2014-03-18 Ericsson Television Inc. User adaptive HTTP stream manager and method for using same
JP5875441B2 (ja) 2012-03-29 2016-03-02 インターナショナル・ビジネス・マシーンズ・コーポレーションＩｎｔｅｒｎａｔｉｏｎａｌ Ｂｕｓｉｎｅｓｓ Ｍａｃｈｉｎｅｓ Ｃｏｒｐｏｒａｔｉｏｎ データを暗号化する装置及び方法
US9141504B2 (en) 2012-06-28 2015-09-22 Apple Inc. Presenting status data received from multiple devices
US9602557B2 (en) * 2012-10-15 2017-03-21 Wowza Media Systems, LLC Systems and methods of communication using a message header that includes header flags
US9571280B2 (en) 2013-06-04 2017-02-14 Intel Corporation Application integrity protection via secure interaction and processing
WO2014196963A1 (en) 2013-06-04 2014-12-11 Intel Corporation End-to-end secure communication system
WO2014196966A1 (en) * 2013-06-04 2014-12-11 Intel Corporation Technologies for hardening the security of digital information on client platforms
KR101708741B1 (ko) * 2015-08-18 2017-02-21 카테노이드 주식회사 컨텐츠를 제공하는 에이전트의 인증 방법 및 이를 위한 디스플레이장치
KR101877535B1 (ko) * 2018-02-12 2018-07-11 한화에어로스페이스 주식회사 스트리밍 영상 암호화 방법과 컴퓨터 프로그램 및 스트리밍 영상 복호화 방법과 컴퓨터 프로그램
US11681781B2 (en) * 2018-02-21 2023-06-20 Comcast Cable Communications, Llc Systems and methods for content security
CN112347274B (zh) * 2020-10-27 2022-06-03 四川长虹电器股份有限公司 网络媒资的推荐方法、系统、计算机设备及存储介质
CN114500475B (zh) * 2021-12-31 2024-02-09 赛因芯微(北京)电子科技有限公司 一种基于实时传输协议的网络数据传输方法、装置及设备
KR102750895B1 (ko) 2023-11-09 2025-01-10 펜타시큐리티 주식회사 IoT 클라우드 보안을 위한 SDP 기반 정보 보호 방법 및 장치

Family Cites Families (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5224166A (en) * 1992-08-11 1993-06-29 International Business Machines Corporation System for seamless processing of encrypted and non-encrypted data and instructions
HU219941B (hu) 1994-07-28 2001-09-28 Koninklijke Philips Electronics N.V. Eljárás és rendszer adatüzenetek átvitelére és vételére, valamint másodlagos állomás a rendszerhez
US6473903B2 (en) * 1996-12-30 2002-10-29 Koninklijke Philips Electronics N.V. Method and system for implementing interactive broadcast programs and commercials
US6205140B1 (en) * 1997-12-01 2001-03-20 Intel Corporation Communication of dynamic dependencies along media streams
US6134243A (en) * 1998-01-15 2000-10-17 Apple Computer, Inc. Method and apparatus for media data transmission
AU5771199A (en) 1998-08-20 2000-03-14 Nokia Networks Oy Method and apparatus for providing user multiplexing in a real-time protocol
EP1035735A3 (en) 1999-03-12 2007-09-05 Kabushiki Kaisha Toshiba Moving image coding and decoding apparatus optimised for the application of the Real Time Protocol (RTP)
US6278478B1 (en) * 1999-03-18 2001-08-21 Microsoft Corporation End-to-end network encoding architecture
US6944296B1 (en) * 1999-03-24 2005-09-13 Intel Corporation Video bit scrambling
JP3816689B2 (ja) 1999-03-31 2006-08-30 株式会社東芝 情報配信装置、情報受信装置及び通信方法
US6918034B1 (en) * 1999-09-29 2005-07-12 Nokia, Corporation Method and apparatus to provide encryption and authentication of a mini-packet in a multiplexed RTP payload
RU2159507C1 (ru) 1999-10-29 2000-11-20 Аликов Сергей Владимирович Узел кодирования и/или декодирования информации, система передачи информации с уплотнением каналов, система передачи информации в телекоммуникационной сети
US6654389B1 (en) * 1999-11-23 2003-11-25 International Business Machines Corporation System and method for searching patterns in real-time over a shared media
CN1182479C (zh) 2000-01-07 2004-12-29 国际商业机器公司 有效地收集、整理和访问证书吊销表的系统和方法
US7159235B2 (en) * 2000-01-28 2007-01-02 Sedna Patent Services, Llc Method and apparatus for content distribution via non-homogeneous access networks
US7257641B1 (en) * 2000-03-30 2007-08-14 Microsoft Corporation Multipoint processing unit
WO2001098903A1 (en) * 2000-06-16 2001-12-27 Entriq Limited BVI Abbot Building Methods and systems to distribute content via a network utilizing distributed conditional access agents and secure agents, and to perform digital rights management (drm)
US6965646B1 (en) * 2000-06-28 2005-11-15 Cisco Technology, Inc. MPEG file format optimization for streaming
US20060130104A1 (en) * 2000-06-28 2006-06-15 Madhukar Budagavi Network video method
WO2002003604A2 (en) 2000-06-29 2002-01-10 Cachestream Corporation Digital rights management
JP2002044135A (ja) 2000-07-25 2002-02-08 Mitsubishi Electric Corp 暗号装置及び暗号通信システム
US7689510B2 (en) * 2000-09-07 2010-03-30 Sonic Solutions Methods and system for use in network management of content
KR20020032803A (ko) 2000-10-27 2002-05-04 구자홍 스트리밍 서비스를 위한 파일 구조
EP1356653B1 (en) * 2001-01-24 2011-07-20 Broadcom Corporation Method for processing multiple security policies applied to a data packet structure
SE0101295D0 (sv) * 2001-04-10 2001-04-10 Ericsson Telefon Ab L M A method and network for delivering streaming data
DE10118997C1 (de) 2001-04-18 2002-06-20 Hepro Gmbh Steuervorrichtung und Verfahren zum Schälen von stangenförmigem Schälgut
US20060167985A1 (en) * 2001-04-26 2006-07-27 Albanese Michael J Network-distributed data routing
US6983049B2 (en) * 2001-05-04 2006-01-03 Hewlett-Packard Development Company, Lp. Storage devices for secure scalable data streaming
US20030041257A1 (en) 2001-05-04 2003-02-27 Wee Susie J. Systems, methods and storage devices for scalable data streaming
US7145919B2 (en) * 2001-06-01 2006-12-05 Telefonaktienbolaget Lm Ericsson (Publ) Method and apparatus for transporting different classes of data bits in a payload over a radio interface
US6745364B2 (en) 2001-06-28 2004-06-01 Microsoft Corporation Negotiated/dynamic error correction for streamed media
US7362707B2 (en) * 2001-07-23 2008-04-22 Acme Packet, Inc. System and method for determining flow quality statistics for real-time transport protocol data flows
US7260215B2 (en) * 2001-09-04 2007-08-21 Portauthority Technologies Inc. Method for encryption in an un-trusted environment
JP3719180B2 (ja) * 2001-09-27 2005-11-24 ソニー株式会社 通信方法、通信システム及び出力機器
WO2003034428A2 (en) * 2001-10-17 2003-04-24 Koninklijke Philips Electronics N.V. Secure single drive copy method and apparatus
JP2003169090A (ja) 2001-11-30 2003-06-13 Fujitsu Ltd 伝送システム
CN100450176C (zh) * 2001-12-11 2009-01-07 艾利森电话股份有限公司 用于流媒体的数字权利管理方法和客户设备
US7242773B2 (en) 2002-09-09 2007-07-10 Sony Corporation Multiple partial encryption using retuning
JP2003224556A (ja) * 2002-01-28 2003-08-08 Toshiba Corp 通信装置及び通信制御方法
US7233587B2 (en) * 2002-02-01 2007-06-19 Harris Corporation Method and system for encapsulating time division multiplex data into individual packets of a packet based network
US7080043B2 (en) * 2002-03-26 2006-07-18 Microsoft Corporation Content revocation and license modification in a digital rights management (DRM) system on a computing device
US20050177875A1 (en) * 2002-03-28 2005-08-11 Kamperman Franciscus Lucas Antonius J. Revocation of content material
US7549060B2 (en) * 2002-06-28 2009-06-16 Microsoft Corporation Using a rights template to obtain a signed rights label (SRL) for digital content in a digital rights management system
KR20050061395A (ko) 2002-09-30 2005-06-22 마쯔시다덴기산교 가부시키가이샤 컨텐츠 이용 장치
JP3821086B2 (ja) * 2002-11-01 2006-09-13 ソニー株式会社 ストリーミングシステム及びストリーミング方法、クライアント端末及びデータ復号方法、並びにプログラム
GB0230301D0 (en) * 2002-12-30 2003-02-05 Nokia Corp Streaming media
US7536418B2 (en) * 2003-01-10 2009-05-19 At&T Intellectual Property Ii, Lp Preload library for transparent file transformation
US7383586B2 (en) 2003-01-17 2008-06-03 Microsoft Corporation File system operation and digital rights management (DRM)
EP1450514A1 (en) * 2003-02-18 2004-08-25 Matsushita Electric Industrial Co., Ltd. Server-based rate control in a multimedia streaming environment
JP2004282731A (ja) * 2003-02-28 2004-10-07 Matsushita Electric Ind Co Ltd コンテンツ利用実績収集システム
JP2004328706A (ja) * 2003-03-05 2004-11-18 Toshiba Corp 送信装置、受信装置、送信制御プログラム及び受信制御プログラム
JP2004287937A (ja) 2003-03-24 2004-10-14 Matsushita Electric Ind Co Ltd デジタルストリーミング放送システムおよび著作権管理方法
US7136945B2 (en) * 2003-03-31 2006-11-14 Sony Corporation Method and apparatus for extending protected content access with peer to peer applications
US7346160B2 (en) * 2003-04-23 2008-03-18 Michaelsen David L Randomization-based encryption apparatus and method
JP2006524860A (ja) 2003-04-28 2006-11-02 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 失効リストを格納する方法
US20050008240A1 (en) * 2003-05-02 2005-01-13 Ashish Banerji Stitching of video for continuous presence multipoint video conferencing
US20050002402A1 (en) 2003-05-19 2005-01-06 Sony Corporation And Sony Electronics Inc. Real-time transport protocol
US7483532B2 (en) 2003-07-03 2009-01-27 Microsoft Corporation RTP payload format
US8582659B2 (en) * 2003-09-07 2013-11-12 Microsoft Corporation Determining a decoding time stamp from buffer fullness
US7852919B2 (en) * 2003-09-07 2010-12-14 Microsoft Corporation Field start code for entry point frames with predicted first field
JP2005204001A (ja) * 2004-01-15 2005-07-28 Hitachi Ltd データ配信サーバ、ソフトウェア、及びシステム
US7567584B2 (en) * 2004-01-15 2009-07-28 Panasonic Corporation Multiplex scheme conversion apparatus
US7447158B2 (en) * 2004-01-28 2008-11-04 Empirix Inc. System and method for testing signals within digital-network packets
US7522712B2 (en) * 2004-01-29 2009-04-21 Comverse Ltd. Method for initiating a session in a store and forward messaging system
WO2005084381A2 (en) * 2004-03-03 2005-09-15 Packetvideo Network Solutions, Inc. System and method for retrieving digital multimedia content from a network node
US20060184790A1 (en) * 2004-03-26 2006-08-17 Microsoft Corporation Protecting elementary stream content
JP4561146B2 (ja) 2004-03-29 2010-10-13 ソニー株式会社 コンテンツ流通システム、暗号化装置、暗号化方法、情報処理プログラム、及び記憶媒体
US7477749B2 (en) * 2004-05-12 2009-01-13 Nokia Corporation Integrity protection of streamed content
US20050254526A1 (en) * 2004-05-12 2005-11-17 Nokia Corporation Parameter sets update in streaming applications
KR101148701B1 (ko) * 2004-08-31 2012-05-23 파나소닉 주식회사 동화상 부호화 방법 및 장치
JP4762145B2 (ja) * 2004-09-03 2011-08-31 パナソニック株式会社 記録媒体、記録装置、プログラム、記録方法、再生装置、再生方法
KR101227330B1 (ko) * 2004-10-07 2013-01-28 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. 화상 부호화 장치 및 화상 복호화 장치
US20060104356A1 (en) * 2004-11-15 2006-05-18 Microsoft Corporation Timing for decoder buffer examination
CN101151840B (zh) * 2005-01-10 2011-09-21 四次方有限公司 用于依据指令处理媒体的单芯片媒体处理器
EP1844611A1 (en) * 2005-01-31 2007-10-17 Thomson Licensing Personal monitoring and information apparatus
US7656835B2 (en) * 2005-05-18 2010-02-02 Nokia Corporation Method for informing changed communications capabilities
US7584497B2 (en) * 2005-05-24 2009-09-01 Microsoft Corporation Strategies for scheduling bandwidth-consuming media events
US20060291475A1 (en) * 2005-06-28 2006-12-28 Noam Cohen Selective forward error correction
US7577258B2 (en) 2005-06-30 2009-08-18 Intel Corporation Apparatus and method for group session key and establishment using a certified migration key
US7725593B2 (en) * 2005-07-15 2010-05-25 Sony Corporation Scalable video coding (SVC) file format

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Publication number Publication date
JP2009500944A (ja) 2009-01-08
EP1899838A2 (en) 2008-03-19
US7769880B2 (en) 2010-08-03
WO2007008362A2 (en) 2007-01-18
CN101506790B (zh) 2013-04-03
US20070011344A1 (en) 2007-01-11
CN101506790A (zh) 2009-08-12
EP1899838B1 (en) 2018-05-23
EP1899838A4 (en) 2014-06-25
WO2007008362A3 (en) 2009-04-16
KR20080033930A (ko) 2008-04-17
KR101203266B1 (ko) 2012-11-20

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