EP1391091A1 - Procede et appareil de transfert de paquets de donnees dans des reseaux de communication - Google Patents

Procede et appareil de transfert de paquets de donnees dans des reseaux de communication

Info

Publication number
EP1391091A1
EP1391091A1 EP02718728A EP02718728A EP1391091A1 EP 1391091 A1 EP1391091 A1 EP 1391091A1 EP 02718728 A EP02718728 A EP 02718728A EP 02718728 A EP02718728 A EP 02718728A EP 1391091 A1 EP1391091 A1 EP 1391091A1
Authority
EP
European Patent Office
Prior art keywords
data
coding
format
received
state
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.)
Withdrawn
Application number
EP02718728A
Other languages
German (de)
English (en)
Inventor
Jan Berglund
Peter Lindeberg
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.)
Operax AB
Original Assignee
Operax AB
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
Priority claimed from SE0101193A external-priority patent/SE0101193D0/xx
Application filed by Operax AB filed Critical Operax AB
Publication of EP1391091A1 publication Critical patent/EP1391091A1/fr
Withdrawn legal-status Critical Current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
    • H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
    • H04N21/64707—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless for transferring content from a first network to a second network, e.g. between IP and wireless
    • 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
    • H04L65/75—Media network packet handling
    • H04L65/765—Media network packet handling intermediate
    • 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
    • H04L65/80—Responding to QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5603—Access techniques

Abstract

L'invention concerne un procédé et un transcodeur permettant de transcoder des données communiquées entre un émetteur (100) et un récepteur (102). Des unités de données (202, 208) contenant des informations dans un premier format (F, IF) sont reçues et codées en de nouvelles unités de données (208, 210) dans un deuxième format (IF, F'), basé sur un état de codage courant (302, 502, 706) extrait du précédent codage de données. Un nouvel état de codage courant est extrait chaque fois qu'une unité de données (202, 500, 700) est codée. Si une unité de données reçue est dans un ordre de séquence erroné, l'état de codage courant est sauvegardé et un nouveau pseudo-état de codage (DS2', ES2', CS2') est extrait pour le codage de la prochaine unité de données reçue. Eventuellement, les données manquantes reçues (F2, S4) sont codées dans le deuxième format (IF, F') basé sur l'état de codage sauvegardé, et peuvent ensuite être utilisées comme données valides. Cela permet de réduire les délais et de rendre superflus les tampons de gigue, tout en conservant une haute qualité.
EP02718728A 2001-04-03 2002-03-25 Procede et appareil de transfert de paquets de donnees dans des reseaux de communication Withdrawn EP1391091A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
SE0101193 2001-04-03
SE0101193A SE0101193D0 (sv) 2001-04-03 2001-04-03 A method to compensate for desordered media packets in packet-to-pacet based media transcoder system
SE0102667A SE523417C2 (sv) 2001-04-03 2001-08-07 En metod och apparat för att överföra datapaket i kommunikationsnätverk
SE0102667 2001-08-07
PCT/SE2002/000590 WO2002082755A1 (fr) 2001-04-03 2002-03-25 Procede et appareil de transfert de paquets de donnees dans des reseaux de communication

Publications (1)

Publication Number Publication Date
EP1391091A1 true EP1391091A1 (fr) 2004-02-25

Family

ID=26655434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02718728A Withdrawn EP1391091A1 (fr) 2001-04-03 2002-03-25 Procede et appareil de transfert de paquets de donnees dans des reseaux de communication

Country Status (6)

Country Link
EP (1) EP1391091A1 (fr)
JP (1) JP4043952B2 (fr)
KR (1) KR20040014483A (fr)
CA (1) CA2443079A1 (fr)
SE (1) SE523417C2 (fr)
WO (1) WO2002082755A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1832079B1 (fr) * 2004-12-24 2015-04-01 Telecom Italia S.p.A. Transcodage media dans des services de distribution multimedia

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5745524A (en) * 1996-01-26 1998-04-28 Motorola, Inc. Self-initialized coder and method thereof
US6975629B2 (en) * 2000-03-22 2005-12-13 Texas Instruments Incorporated Processing packets based on deadline intervals

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02082755A1 *

Also Published As

Publication number Publication date
SE0102667D0 (sv) 2001-08-07
JP2004530357A (ja) 2004-09-30
KR20040014483A (ko) 2004-02-14
JP4043952B2 (ja) 2008-02-06
WO2002082755A1 (fr) 2002-10-17
SE523417C2 (sv) 2004-04-20
SE0102667L (sv) 2002-10-04
CA2443079A1 (fr) 2002-10-17

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