WO2007104892A3 - Mecanisme securise pour la transmission de valeur de compteur dans le cadre de la transmission d'un signal de synchronisation dans un reseau a commutation par paquets - Google Patents

Mecanisme securise pour la transmission de valeur de compteur dans le cadre de la transmission d'un signal de synchronisation dans un reseau a commutation par paquets Download PDF

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Publication number
WO2007104892A3
WO2007104892A3 PCT/FR2007/050919 FR2007050919W WO2007104892A3 WO 2007104892 A3 WO2007104892 A3 WO 2007104892A3 FR 2007050919 W FR2007050919 W FR 2007050919W WO 2007104892 A3 WO2007104892 A3 WO 2007104892A3
Authority
WO
WIPO (PCT)
Prior art keywords
context
transmission
counter value
synchronizing signal
packet network
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.)
Ceased
Application number
PCT/FR2007/050919
Other languages
English (en)
Other versions
WO2007104892A2 (fr
Inventor
Serge Defrance
Thierry Tapie
Gael Mace
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.)
Thomson Licensing SAS
Original Assignee
Thomson Licensing SAS
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 Thomson Licensing SAS filed Critical Thomson Licensing SAS
Priority to EP07731735A priority Critical patent/EP1994766A2/fr
Priority to JP2008558867A priority patent/JP4971374B2/ja
Priority to US12/225,016 priority patent/US8218577B2/en
Publication of WO2007104892A2 publication Critical patent/WO2007104892A2/fr
Publication of WO2007104892A3 publication Critical patent/WO2007104892A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643—Communication protocols
    • H04N21/64322—IP
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/242—Synchronisation processes, e.g. processing of PCR [Programme Clock References]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
    • H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/633—Control signals issued by server directed to the network components or client
    • H04N21/6332—Control signals issued by server directed to the network components or client directed to client

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

La présente invention se rapporte à un dispositif apte à recevoir des paquets dans un réseau de communication par paquets comportant au moins deux stations, caractérisé en ce qu' il comporte : une boucle à verrouillage de phase; ainsi que des moyens pour : recevoir des paquets contenant des échantillons dudit réseau, lesdits échantillons provenant de données échantillonnées toutes les périodes Tech , où Tech est issu d'une base de temps synchronisée sur toutes les stations dudit réseau et lesdits échantillons étant associés à des valeurs d' incrément prédisant au moins un échantillon; calculer, en cas d' interruption de réception de paquets, une prédiction d'un échantillon qui aurait dû être reçu, en ajoutant une valeur d' incrément à une valeur d'échantillon reçue. La présente invention se rapporte également à un dispositif apte à émettre des paquets dans un réseau de communication par paquets.
PCT/FR2007/050919 2006-03-13 2007-03-13 Mecanisme securise pour la transmission de valeur de compteur dans le cadre de la transmission d'un signal de synchronisation dans un reseau a commutation par paquets Ceased WO2007104892A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP07731735A EP1994766A2 (fr) 2006-03-13 2007-03-13 Mecanisme securise pour la transmission de valeur de compteur dans le cadre de la transmission d'un signal de synchronisation dans un reseau a commutation par paquets
JP2008558867A JP4971374B2 (ja) 2006-03-13 2007-03-13 パケット交換網における同期信号の送信における送信計数値のための保護機構
US12/225,016 US8218577B2 (en) 2006-03-13 2007-03-13 Secure mechanism for transmitting counter value in the context of transmission of a synchronizing signal in a packet network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0650838A FR2898454A1 (fr) 2006-03-13 2006-03-13 Mecanisme securise pour la transmission de valeur de compteur pour la transmission d'un signal genlock sur un reseau ip
FR0650838 2006-03-13

Publications (2)

Publication Number Publication Date
WO2007104892A2 WO2007104892A2 (fr) 2007-09-20
WO2007104892A3 true WO2007104892A3 (fr) 2007-11-29

Family

ID=37546683

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2007/050919 Ceased WO2007104892A2 (fr) 2006-03-13 2007-03-13 Mecanisme securise pour la transmission de valeur de compteur dans le cadre de la transmission d'un signal de synchronisation dans un reseau a commutation par paquets

Country Status (5)

Country Link
US (1) US8218577B2 (fr)
EP (1) EP1994766A2 (fr)
JP (1) JP4971374B2 (fr)
FR (1) FR2898454A1 (fr)
WO (1) WO2007104892A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8170012B2 (en) * 2007-06-12 2012-05-01 Thomson Licensing Phase control of a synchronization signal in a packet switching network
EP2150062B1 (fr) * 2008-07-28 2022-10-26 Imagine Communications Corp. Procédé, système et appareil améliorés pour la synchronisation de signaux

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0624983A2 (fr) * 1993-05-13 1994-11-17 RCA Thomson Licensing Corporation Méthode de synchronisation pour un signal vidéo comprimé

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4457005A (en) * 1981-12-07 1984-06-26 Motorola, Inc. Digital coherent PSK demodulator and detector
US4752748A (en) * 1987-04-16 1988-06-21 Amdahl Corporation Intelligent phase-locked loop
US5459524A (en) * 1991-11-18 1995-10-17 Cooper; J. Carl Phase modulation demodulator apparatus and method
US5612981A (en) * 1994-02-15 1997-03-18 Philips Electronics North America Corporation Apparatus and methods for improving timing recovery of a system clock
US5805602A (en) * 1995-09-25 1998-09-08 Bell Atlantic Network Services, Inc. Network monitoring system for cell delay variation
DE19630398C1 (de) * 1996-07-26 1998-02-12 Siemens Ag Verfahren zum Synchronisieren eines in einer Datenempfangsstation zu generierenden Taktsignals mit einem in einer Datensendestation verwendeten Taktsignal
JP4081936B2 (ja) 1999-03-17 2008-04-30 ソニー株式会社 通信装置、通信方法、および記録媒体
US7599400B2 (en) * 2005-09-06 2009-10-06 Nortel Networks Limited Methods and systems for reducing waiting-time jitter
US7657333B2 (en) * 2007-09-27 2010-02-02 Rockwell Automation Technologies, Inc. Adjustment of data collection rate based on anomaly detection

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0624983A2 (fr) * 1993-05-13 1994-11-17 RCA Thomson Licensing Corporation Méthode de synchronisation pour un signal vidéo comprimé

Also Published As

Publication number Publication date
FR2898454A1 (fr) 2007-09-14
JP2009530886A (ja) 2009-08-27
WO2007104892A2 (fr) 2007-09-20
JP4971374B2 (ja) 2012-07-11
US20090073976A1 (en) 2009-03-19
US8218577B2 (en) 2012-07-10
EP1994766A2 (fr) 2008-11-26

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