ATE490618T1 - Sichere multicast-übertragung - Google Patents

Sichere multicast-übertragung

Info

Publication number
ATE490618T1
ATE490618T1 AT04770477T AT04770477T ATE490618T1 AT E490618 T1 ATE490618 T1 AT E490618T1 AT 04770477 T AT04770477 T AT 04770477T AT 04770477 T AT04770477 T AT 04770477T AT E490618 T1 ATE490618 T1 AT E490618T1
Authority
AT
Austria
Prior art keywords
data block
segments
multicast transmission
data
encrypted
Prior art date
Application number
AT04770477T
Other languages
English (en)
Inventor
Leonid Entin
Noam Amram
Meir Fuchs
Original Assignee
Bamboo Mediacasting Ltd
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 Bamboo Mediacasting Ltd filed Critical Bamboo Mediacasting Ltd
Application granted granted Critical
Publication of ATE490618T1 publication Critical patent/ATE490618T1/de

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/04Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428Network 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/16Arrangements for providing special services to substations
    • H04L12/18Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/06Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H04L63/062Network architectures or network communication protocols for network security for supporting key management in a packet data network for key distribution, e.g. centrally by trusted party
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/083Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]
    • H04L9/0833Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP] involving conference or group key
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W12/00Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/03Protecting confidentiality, e.g. by encryption
    • H04W12/033Protecting confidentiality, e.g. by encryption of the user plane, e.g. user's traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • H04W4/029Location-based management or tracking services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/34Encoding or coding, e.g. Huffman coding or error correction
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/80Wireless
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
AT04770477T 2003-09-11 2004-09-07 Sichere multicast-übertragung ATE490618T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL157886A IL157886A0 (en) 2003-09-11 2003-09-11 Secure multicast transmission
PCT/IL2004/000806 WO2005025122A1 (en) 2003-09-11 2004-09-07 Secure multicast transmission

Publications (1)

Publication Number Publication Date
ATE490618T1 true ATE490618T1 (de) 2010-12-15

Family

ID=34259911

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04770477T ATE490618T1 (de) 2003-09-11 2004-09-07 Sichere multicast-übertragung

Country Status (6)

Country Link
US (1) US20070028099A1 (de)
EP (1) EP1668814B1 (de)
AT (1) ATE490618T1 (de)
DE (1) DE602004030357D1 (de)
IL (1) IL157886A0 (de)
WO (1) WO2005025122A1 (de)

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7068729B2 (en) * 2001-12-21 2006-06-27 Digital Fountain, Inc. Multi-stage code generator and decoder for communication systems
US6307487B1 (en) 1998-09-23 2001-10-23 Digital Fountain, Inc. Information additive code generator and decoder for communication systems
US9240810B2 (en) * 2002-06-11 2016-01-19 Digital Fountain, Inc. Systems and processes for decoding chain reaction codes through inactivation
AU2003277198A1 (en) 2002-10-05 2004-05-04 Digital Fountain, Inc. Systematic encoding and decoding of chain reaction codes
IL154739A0 (en) * 2003-03-04 2003-10-31 Bamboo Mediacasting Ltd Segmented data delivery over non-reliable link
IL157885A0 (en) * 2003-09-11 2004-03-28 Bamboo Mediacasting Ltd Iterative forward error correction
IL158158A (en) * 2003-09-29 2012-05-31 Bamboo Mediacasting Ltd Distribution of multicast data to users
EP2722995B1 (de) 2003-10-06 2023-04-19 QUALCOMM Incorporated Soft-Dekodierung von Multi-Stage Chain Reaction Kodes
KR101205758B1 (ko) 2004-05-07 2012-12-03 디지털 파운튼, 인크. 파일 다운로드 및 스트리밍 시스템
US7536565B2 (en) * 2005-01-07 2009-05-19 Apple Inc. Techniques for improved playlist processing on media devices
US9136983B2 (en) 2006-02-13 2015-09-15 Digital Fountain, Inc. Streaming and buffering using variable FEC overhead and protection periods
US9270414B2 (en) * 2006-02-21 2016-02-23 Digital Fountain, Inc. Multiple-field based code generator and decoder for communications systems
WO2007134196A2 (en) 2006-05-10 2007-11-22 Digital Fountain, Inc. Code generator and decoder using hybrid codes
US20100211690A1 (en) * 2009-02-13 2010-08-19 Digital Fountain, Inc. Block partitioning for a data stream
US9432433B2 (en) 2006-06-09 2016-08-30 Qualcomm Incorporated Enhanced block-request streaming system using signaling or block creation
US9380096B2 (en) 2006-06-09 2016-06-28 Qualcomm Incorporated Enhanced block-request streaming system for handling low-latency streaming
US9419749B2 (en) 2009-08-19 2016-08-16 Qualcomm Incorporated Methods and apparatus employing FEC codes with permanent inactivation of symbols for encoding and decoding processes
US9209934B2 (en) * 2006-06-09 2015-12-08 Qualcomm Incorporated Enhanced block-request streaming using cooperative parallel HTTP and forward error correction
US9178535B2 (en) * 2006-06-09 2015-11-03 Digital Fountain, Inc. Dynamic stream interleaving and sub-stream based delivery
US9386064B2 (en) * 2006-06-09 2016-07-05 Qualcomm Incorporated Enhanced block-request streaming using URL templates and construction rules
EP2039053B1 (de) * 2006-06-30 2018-05-23 Koninklijke Philips N.V. Verfahren und vorrichtung zur verschlüsselung und entschlüsselung von daten
US7653019B2 (en) 2006-07-31 2010-01-26 Alcatel-Lucent Usa Inc. Method of distributing identical data to mobile units
US8694783B2 (en) * 2007-01-22 2014-04-08 Samsung Electronics Co., Ltd. Lightweight secure authentication channel
US8116454B2 (en) 2007-07-23 2012-02-14 Savi Technology, Inc. Method and apparatus for providing security in a radio frequency identification system
EP2203836A4 (de) * 2007-09-12 2014-11-05 Digital Fountain Inc Erzeugen und übermitteln von quellenidentifikationsinformationen zur ermöglichung einer zuverlässigen kommunikation
JP4471996B2 (ja) * 2007-09-18 2010-06-02 株式会社日立製作所 列車制御システム
KR100888075B1 (ko) * 2008-04-28 2009-03-11 인하대학교 산학협력단 개인별 대칭키를 이용한 멀티캐스트를 위한 암호화 및복호화 시스템
US9281847B2 (en) * 2009-02-27 2016-03-08 Qualcomm Incorporated Mobile reception of digital video broadcasting—terrestrial services
US20110016305A1 (en) * 2009-07-17 2011-01-20 Robert Wayne Crull System and method for transforming information
US9288010B2 (en) 2009-08-19 2016-03-15 Qualcomm Incorporated Universal file delivery methods for providing unequal error protection and bundled file delivery services
US20110096828A1 (en) * 2009-09-22 2011-04-28 Qualcomm Incorporated Enhanced block-request streaming using scalable encoding
US9917874B2 (en) 2009-09-22 2018-03-13 Qualcomm Incorporated Enhanced block-request streaming using block partitioning or request controls for improved client-side handling
US9596447B2 (en) 2010-07-21 2017-03-14 Qualcomm Incorporated Providing frame packing type information for video coding
US9319448B2 (en) 2010-08-10 2016-04-19 Qualcomm Incorporated Trick modes for network streaming of coded multimedia data
US9398426B2 (en) * 2011-02-07 2016-07-19 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for transmitting secure cell broadcast messages in a cellular communication network
US9270299B2 (en) 2011-02-11 2016-02-23 Qualcomm Incorporated Encoding and decoding using elastic codes with flexible source block mapping
US8958375B2 (en) 2011-02-11 2015-02-17 Qualcomm Incorporated Framing for an improved radio link protocol including FEC
US9232268B2 (en) * 2011-02-23 2016-01-05 Broadcom Corporation Unified video delivery system for supporting IP video streaming service
US9438415B2 (en) 2011-02-23 2016-09-06 Broadcom Corporation Method and system for securing communication on a home gateway in an IP content streaming system
US8730037B2 (en) 2011-03-28 2014-05-20 Physical Apps, Llc Physical interaction device for personal electronics and method for use
US9253233B2 (en) 2011-08-31 2016-02-02 Qualcomm Incorporated Switch signaling methods providing improved switching between representations for adaptive HTTP streaming
US9843844B2 (en) 2011-10-05 2017-12-12 Qualcomm Incorporated Network streaming of media data
US8755274B2 (en) * 2011-11-19 2014-06-17 Motorola Solutions, Inc. Adaptive data rate limiter in a wireless communication device
US9294226B2 (en) 2012-03-26 2016-03-22 Qualcomm Incorporated Universal object delivery and template-based file delivery
US9191252B1 (en) * 2013-02-28 2015-11-17 L-3 Communications Corp. Variable length header for identifying changed parameters of a waveform type
US9396310B2 (en) 2013-07-15 2016-07-19 At&T Intellectual Property I, L.P. Method and apparatus for providing secure image encryption and decryption
CN104205117B (zh) * 2014-04-10 2017-04-26 华为技术有限公司 设备文件的加解密方法及装置
DE102014018867A1 (de) * 2014-12-16 2016-06-16 Giesecke & Devrient Gmbh Einbringen einer Identität in ein Secure Element
CN105893857A (zh) * 2016-03-31 2016-08-24 北京金山安全软件有限公司 一种文件加密方法、装置及设备
WO2017207057A1 (en) * 2016-06-02 2017-12-07 Kobil Systems Gmbh Secure messaging
CN108574935B (zh) * 2017-03-09 2020-12-22 华为技术有限公司 一种组播业务处理方法及接入点
DE102021117324A1 (de) 2021-07-05 2023-01-05 Bayerische Motoren Werke Aktiengesellschaft Sendeeinheit und Empfangseinheit zum Senden und Empfangen von Datenpaketen
US12388852B2 (en) * 2022-02-24 2025-08-12 Microsoft Technology Licensing, Llc Detecting mass control plane operations
CN120474635A (zh) * 2025-07-17 2025-08-12 军工保密资格审查认证中心 电磁安全通信方法及系统

Family Cites Families (100)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5247575A (en) * 1988-08-16 1993-09-21 Sprague Peter J Information distribution system
US5247576A (en) * 1991-02-27 1993-09-21 Motorola, Inc. Key variable identification method
US5361402A (en) * 1992-03-30 1994-11-01 Motorola, Inc. Test device for analyzing communication channels in a trunked radio system
US5319705A (en) * 1992-10-21 1994-06-07 International Business Machines Corporation Method and system for multimedia access control enablement
US5406613A (en) * 1993-06-29 1995-04-11 Pacific Communication Sciences, Inc. Method and apparatus for reducing power consumption in cellular telephone by adaptively determining the reliability of the reception of a received message block
US5400403A (en) * 1993-08-16 1995-03-21 Rsa Data Security, Inc. Abuse-resistant object distribution system and method
JPH07283740A (ja) * 1994-04-05 1995-10-27 Sony Corp 送信装置、受信装置、および伝送システム
US5541927A (en) * 1994-08-24 1996-07-30 At&T Corp. Method of multicasting
US5727065A (en) * 1994-11-14 1998-03-10 Hughes Electronics Deferred billing, broadcast, electronic document distribution system and method
US6453438B1 (en) * 1995-01-19 2002-09-17 The Fantastic Corporation System and method for automatically rescheduling a data transmission to members of a group
US5553083B1 (en) * 1995-01-19 2000-05-16 Starburst Comm Corp Method for quickly and reliably transmitting frames of data over communications links
US5568554A (en) * 1995-01-31 1996-10-22 Digital Equipment Corporation Method for improving the processing and storage performance of digital signature schemes
US5896566A (en) * 1995-07-28 1999-04-20 Motorola, Inc. Method for indicating availability of updated software to portable wireless communication units
CN1145395A (zh) * 1995-08-08 1997-03-19 周鼎力 利用废橡胶制造汽油、柴油和炭黑的方法及设备
US5757813A (en) * 1995-10-18 1998-05-26 Telefonaktiebolaget Lm Ericsson Method for achieving optimal channel coding in a communication system
US5862329A (en) * 1996-04-18 1999-01-19 International Business Machines Corporation Method system and article of manufacture for multi-casting audio visual material
FI112419B (fi) * 1996-06-06 2003-11-28 Nokia Corp Menetelmä tiedonsiirron salaamiseksi
US5748736A (en) * 1996-06-14 1998-05-05 Mittra; Suvo System and method for secure group communications via multicast or broadcast
US5887252A (en) * 1996-09-10 1999-03-23 Nokia Mobile Phones Limited Multicast transmission for DS-CDMA cellular telephones
US5905871A (en) * 1996-10-10 1999-05-18 Lucent Technologies Inc. Method of multicasting
US6014089A (en) * 1996-10-28 2000-01-11 Tracy Corporation Ii Method for transmitting data using a digital control channel of a wireless network
CA2217838C (en) * 1996-11-07 2003-07-29 At&T Corp. Wan-based voice gateway
US6046980A (en) * 1996-12-09 2000-04-04 Packeteer, Inc. System for managing flow bandwidth utilization at network, transport and application layers in store and forward network
US6324570B1 (en) * 1997-02-25 2001-11-27 E-Parcel, Llc Prioritized delivery and content auto select system
US5963557A (en) * 1997-04-11 1999-10-05 Eng; John W. High capacity reservation multiple access network with multiple shared unidirectional paths
US6108706A (en) * 1997-06-09 2000-08-22 Microsoft Corporation Transmission announcement system and method for announcing upcoming data transmissions over a broadcast network
US6104929A (en) * 1997-06-20 2000-08-15 Telefonaktiebolaget Lm Ericsson Data packet radio service with enhanced mobility management
US6351467B1 (en) * 1997-10-27 2002-02-26 Hughes Electronics Corporation System and method for multicasting multimedia content
US6115754A (en) * 1997-12-29 2000-09-05 Nortel Networks Limited System and method for appending location information to a communication sent from a mobile terminal operating in a wireless communication system to an internet server
US5978368A (en) * 1998-04-30 1999-11-02 Telefonaktiebolaget Lm Ericsson Allocation of channels for packet data services
US6445717B1 (en) * 1998-05-01 2002-09-03 Niwot Networks, Inc. System for recovering lost information in a data stream
US6104709A (en) * 1998-07-17 2000-08-15 Motorola, Inc. Channel assignment within a broad-band communication system
US6144651A (en) * 1998-07-17 2000-11-07 Motorola, Inc. Data transmission within a wireless communication system
US6141347A (en) * 1998-08-26 2000-10-31 Motorola, Inc. Wireless communication system incorporating multicast addressing and method for use
US6320873B1 (en) * 1998-08-27 2001-11-20 Qualcomm Incorporated CDMA transmission of packet-switched data
US6260168B1 (en) * 1998-09-23 2001-07-10 Glenayre Electronics, Inc. Paging system having optional forward error correcting code transmission at the data link layer
US6118911A (en) * 1998-09-25 2000-09-12 Hughes Electronics Corporation Waveguide switch matrix using junctions matched in only one state
US6553540B1 (en) * 1998-12-07 2003-04-22 Telefonaktiebolaget Lm Ericsson Efficient system and method for forward error correction
JP2000183873A (ja) * 1998-12-11 2000-06-30 Fujitsu Ltd データ転送方法
US6741575B1 (en) * 1999-02-26 2004-05-25 Hughes Electronics Corporation Apparatus and method for efficient delivery of multicast data over personal access communications system (PACS)
JP3776619B2 (ja) * 1999-03-05 2006-05-17 株式会社東芝 暗号通信端末、暗号通信センター装置、暗号通信システム及び記憶媒体
US6269080B1 (en) * 1999-04-13 2001-07-31 Glenayre Electronics, Inc. Method of multicast file distribution and synchronization
US6122483A (en) * 1999-06-28 2000-09-19 Nortel Networks Limited Method and apparatus for multicast messaging in a public satellite network
US6570851B1 (en) * 1999-07-01 2003-05-27 Nokia Telecommunications Oy Receiver driven differentiated service marking for unicast and multicast applications
US7581110B1 (en) * 1999-08-25 2009-08-25 Nokia Corporation Key distribution for encrypted broadcast data using minimal system bandwidth
US6283162B1 (en) * 1999-09-09 2001-09-04 Boyd L. Butler Thin boom tube exhaust pipes, method of sheet metal construction thereof, and exhaust systems which utilize such exhaust pipes for increased ground clearance on race cars
US6360076B1 (en) * 1999-10-06 2002-03-19 Telefonaktiebolaget L M Ericsson (Publ) Method of broadcasting a quality over-the-air multicast
US7213005B2 (en) * 1999-12-09 2007-05-01 International Business Machines Corporation Digital content distribution using web broadcasting services
US7093028B1 (en) * 1999-12-15 2006-08-15 Microsoft Corporation User and content aware object-based data stream transmission methods and arrangements
US20010032245A1 (en) * 1999-12-22 2001-10-18 Nicolas Fodor Industrial capacity clustered mail server system and method
WO2001067674A2 (en) * 2000-03-03 2001-09-13 Qualcomm Incorporated Method and apparatus for participating in group communication services in an existing communication system
US7254409B2 (en) * 2000-04-14 2007-08-07 Ntt Docomo, Inc. Multicast service providing system, multicast service providing method, information distributor, radio terminal, and radio base station
US7310809B2 (en) 2000-05-19 2007-12-18 General Instrument Corporation Scalable pay-by-time technique for secure multicast distribution of streaming content
FI20001574L (fi) * 2000-06-30 2001-12-31 Nokia Corp Resurssien allokointi ja palvelun välittäminen langattoman verkon yli
JP3833450B2 (ja) * 2000-07-27 2006-10-11 三菱電機株式会社 通信制御方式及びルータ
JP2002124992A (ja) * 2000-08-10 2002-04-26 Kddi Corp マルチキャストによるデータファイル配信方法
WO2002023795A1 (en) * 2000-09-11 2002-03-21 Zhang Jinglong F A method and apparatus employing one-way transforms
JP3494142B2 (ja) 2000-10-04 2004-02-03 日本電気株式会社 パケット通信用メモリ及びそれに用いるデータ書込み読出し方法
US20020172368A1 (en) * 2000-10-26 2002-11-21 General Instrument, Inc. Intial free preview for multimedia multicast content
US7143289B2 (en) 2000-10-30 2006-11-28 Geocodex Llc System and method for delivering encrypted information in a communication network using location identity and key tables
US6804528B1 (en) * 2000-11-03 2004-10-12 Lucent Technologies, Inc. Apparatus and method for use in the multicast of traffic data in wireless multiple access communications systems
US20020064282A1 (en) * 2000-11-29 2002-05-30 Dmitrii Loukianov Decryption key management in remote nodes
US7155487B2 (en) * 2000-11-30 2006-12-26 Intel Corporation Method, system and article of manufacture for data distribution over a network
US6681114B2 (en) * 2000-12-06 2004-01-20 At&T Corp. On demand multicast messaging system
US20020075824A1 (en) * 2000-12-14 2002-06-20 Willekes Tom J. System and method for distributing files in a wireless network infrastructure
US6978376B2 (en) * 2000-12-15 2005-12-20 Authentica, Inc. Information security architecture for encrypting documents for remote access while maintaining access control
US7116640B2 (en) * 2000-12-22 2006-10-03 Mitchell Paul Tasman Architecture and mechanism for forwarding layer interfacing for networks
US20020085536A1 (en) * 2000-12-29 2002-07-04 Rudrapatna Ashok N. System and method for implementing a wireless isochronous data service
US20020087623A1 (en) * 2000-12-30 2002-07-04 Eatough David A. Method and apparatus for determining network topology and/or managing network related tasks
US6941326B2 (en) * 2001-01-24 2005-09-06 Microsoft Corporation Accounting for update notifications in synchronizing data that may be represented by different data structures
US6952558B2 (en) * 2001-02-20 2005-10-04 Sony Corporation Wireless sports view display and business method of use
US7711122B2 (en) * 2001-03-09 2010-05-04 Arcot Systems, Inc. Method and apparatus for cryptographic key storage wherein key servers are authenticated by possession and secure distribution of stored keys
US6447149B1 (en) * 2001-04-12 2002-09-10 Xodus Medical, Inc. Surgical light handle cover
WO2003003650A2 (en) * 2001-06-27 2003-01-09 Telefonaktiebolaget Lm Ericsson (Publ) Multicast in point-to-point packet-switched oriented networks
FI20011392L (fi) * 2001-06-28 2002-12-29 Nokia Corp Mekanismi multicast-jakelua varten tietoliikennejärjestelmässä
EP1274263A1 (de) * 2001-06-29 2003-01-08 Motorola, Inc. Verfahren und Vorrichtung zur Bestimmung einer Mehrfachübertragungsgruppe in einer hybriden Funkumgebung
US20030039225A1 (en) * 2001-08-22 2003-02-27 Alessio Casati Method of sending a multicast message to mobile stations, and a radio telecommunications network
US7903593B2 (en) 2001-08-23 2011-03-08 Runcom Technologies Ltd. Multicast transmission in packet based cellular networks
JP2003069547A (ja) 2001-08-29 2003-03-07 Fujitsu Ltd マルチキャスト通信システム
US20030051159A1 (en) * 2001-09-11 2003-03-13 Mccown Steven H Secure media transmission with incremental decryption
US7061880B2 (en) * 2001-10-11 2006-06-13 Telefonaktiebolaget Lm Ericsson (Publ) Systems and methods for multicast communications
US20030084284A1 (en) * 2001-10-24 2003-05-01 Satoshi Ando Data distribution system, sending device, receiving device, data distribution method, sending method, receiving method, recording medium on which data preparation program is recorded and recording medium on which data assembling program is recorded
US8068832B2 (en) * 2001-11-19 2011-11-29 Nokia Corporation Multicast session handover
GB2383494B (en) * 2001-12-19 2006-01-25 Qualcomm A method of and apparatus for handling messages in a mobile communications environment
US7305010B2 (en) * 2002-01-11 2007-12-04 Nippon Telegraph And Telephone Corporation Multicast communication system
US20030163355A1 (en) * 2002-02-25 2003-08-28 Ge Medical Systems Information Technologies, Inc. System and method for determining the likelihood of the presence of a condition of a patient's heart
US7171479B2 (en) * 2002-04-26 2007-01-30 International Business Machines Corporation Efficient delivery of boot code images from a network server
CN1482556A (zh) * 2002-05-20 2004-03-17 ��ʽ����Ntt����Ħ 通信终端、流通服务器、提供服务器、电子书籍流通方法
FI113091B (fi) * 2002-06-10 2004-02-27 Scando Oy Menetelmä ja järjestely paikannuksen suorittamiseksi
JP2004056563A (ja) * 2002-07-22 2004-02-19 Matsushita Electric Ind Co Ltd 携帯電話機
US6970698B2 (en) * 2002-07-23 2005-11-29 Sbc Technology Resources, Inc. System and method for updating data in remote devices
US7177275B2 (en) * 2002-07-26 2007-02-13 Kenneth Stanwood Scheduling method and system for communication systems that offer multiple classes of service
US7289500B1 (en) * 2003-07-17 2007-10-30 Novell, Inc. Method and system for reliable multicast data transmission
AU2002325970A1 (en) * 2002-09-20 2004-04-08 Nokia Corporation Multicast transmission in a cellular network
US8159998B2 (en) * 2002-12-27 2012-04-17 Rockstar Bidco Lp Method and apparatus for improving a transmission signal characteristic of a downlink signal in a time division multiple access wireless communication system
FR2851389B1 (fr) * 2003-02-14 2005-04-29 Canon Kk Procede et dispositif de gestion de requetes dans une architecture du type client-serveur
US7646762B2 (en) * 2003-08-06 2010-01-12 Motorola, Inc. Method and apparatus for providing session data to a subscriber to a multimedia broadcast multicast service
JP2005184352A (ja) * 2003-12-18 2005-07-07 Alps Electric Co Ltd 携帯電話端末装置
JP2006054853A (ja) * 2004-07-14 2006-02-23 Iwatsu Electric Co Ltd 無線lanにおけるパケット伝送方法及び装置
US7251476B2 (en) * 2004-11-01 2007-07-31 Xcellasave, Inc. Method for advertising on digital cellular telephones and reducing costs to the end user

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EP1668814B1 (de) 2010-12-01
WO2005025122A1 (en) 2005-03-17
US20070028099A1 (en) 2007-02-01
EP1668814A4 (de) 2009-02-11
IL157886A0 (en) 2009-02-11
EP1668814A1 (de) 2006-06-14
DE602004030357D1 (de) 2011-01-13
WO2005025122A8 (en) 2005-05-19

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