SE0102667L - A method and apparatus for transmitting data packets in communication networks - Google Patents

A method and apparatus for transmitting data packets in communication networks

Info

Publication number
SE0102667L
SE0102667L SE0102667A SE0102667A SE0102667L SE 0102667 L SE0102667 L SE 0102667L SE 0102667 A SE0102667 A SE 0102667A SE 0102667 A SE0102667 A SE 0102667A SE 0102667 L SE0102667 L SE 0102667L
Authority
SE
Sweden
Prior art keywords
data
coded
format
received
coding state
Prior art date
Application number
SE0102667A
Other languages
Swedish (sv)
Other versions
SE523417C2 (en
SE0102667D0 (en
Inventor
Jan Berglund
Peter Lindeberg
Original Assignee
Reddo Networks 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/en
Application filed by Reddo Networks Ab filed Critical Reddo Networks Ab
Priority to SE0102667A priority Critical patent/SE523417C2/en
Publication of SE0102667D0 publication Critical patent/SE0102667D0/en
Priority to JP2002580586A priority patent/JP4043952B2/en
Priority to CA002443079A priority patent/CA2443079A1/en
Priority to PCT/SE2002/000590 priority patent/WO2002082755A1/en
Priority to KR10-2003-7013042A priority patent/KR20040014483A/en
Priority to EP02718728A priority patent/EP1391091A1/en
Publication of SE0102667L publication Critical patent/SE0102667L/en
Publication of SE523417C2 publication Critical patent/SE523417C2/en

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

A method and a transcoder for transcoding data communicated between a sender (100) and a receiver (102). Data units (202, 208) comprising information in a first format (F, IF) are received and coded into new data units (208, 210) in a second format (IF, F'), based on a current coding state (302, 502, 706) extracted from a previous coding of data. A new current coding state is extracted each time a data unit (202, 500, 700) is coded. If a received data unit is in an erroneous sequence order, the current coding state is saved and a new pseudo coding state (DS2', ES2', CS2') is eytracted for codng a next received data unit. Eventually received missing data (F2, S4) is coded into the second format (IF, F') based on the saved coding sate, and may then be used as valid data. In this way, delays are minimised and jitter buffers are not necessary, while still maintaining a high quality.
SE0102667A 2001-04-03 2001-08-07 A method and apparatus for transmitting data packets in communication networks SE523417C2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE0102667A SE523417C2 (en) 2001-04-03 2001-08-07 A method and apparatus for transmitting data packets in communication networks
JP2002580586A JP4043952B2 (en) 2001-04-03 2002-03-25 Method and apparatus for transferring data packet in communication network
CA002443079A CA2443079A1 (en) 2001-04-03 2002-03-25 A method and apparatus for transferring data packets in communication networks
PCT/SE2002/000590 WO2002082755A1 (en) 2001-04-03 2002-03-25 A method and apparatus for transferring data packets in communicaiton networks
KR10-2003-7013042A KR20040014483A (en) 2001-04-03 2002-03-25 A method and apparatus for transferring data packets in communication networks
EP02718728A EP1391091A1 (en) 2001-04-03 2002-03-25 A method and apparatus for transferring data packets in communicaiton networks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0101193A SE0101193D0 (en) 2001-04-03 2001-04-03 A method to compensate for disordered media packets in a packet-to-packet based media transcoder system
SE0102667A SE523417C2 (en) 2001-04-03 2001-08-07 A method and apparatus for transmitting data packets in communication networks

Publications (3)

Publication Number Publication Date
SE0102667D0 SE0102667D0 (en) 2001-08-07
SE0102667L true SE0102667L (en) 2002-10-04
SE523417C2 SE523417C2 (en) 2004-04-20

Family

ID=26655434

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0102667A SE523417C2 (en) 2001-04-03 2001-08-07 A method and apparatus for transmitting data packets in communication networks

Country Status (6)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006066632A1 (en) * 2004-12-24 2006-06-29 Telecom Italia S.P.A. Media transcoding in multimedia delivery services

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

Also Published As

Publication number Publication date
KR20040014483A (en) 2004-02-14
SE523417C2 (en) 2004-04-20
CA2443079A1 (en) 2002-10-17
JP2004530357A (en) 2004-09-30
EP1391091A1 (en) 2004-02-25
WO2002082755A1 (en) 2002-10-17
JP4043952B2 (en) 2008-02-06
SE0102667D0 (en) 2001-08-07

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