BR0112335A - Remoção de agitação de multimìdia em uma rede doméstica digital assìncrona - Google Patents

Remoção de agitação de multimìdia em uma rede doméstica digital assìncrona

Info

Publication number
BR0112335A
BR0112335A BR0112335-1A BR0112335A BR0112335A BR 0112335 A BR0112335 A BR 0112335A BR 0112335 A BR0112335 A BR 0112335A BR 0112335 A BR0112335 A BR 0112335A
Authority
BR
Brazil
Prior art keywords
data
clock
network
received
multimedia
Prior art date
Application number
BR0112335-1A
Other languages
English (en)
Inventor
Terry Wayne Lockridge
Thomas Edward Horlander
John William Richardson
Original Assignee
Thomson Licensing Sa
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 Sa filed Critical Thomson Licensing Sa
Publication of BR0112335A publication Critical patent/BR0112335A/pt

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]
    • H04N21/40—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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • H04J3/0664—Clock or time synchronisation among packet nodes using timestamps unidirectional timestamps
    • 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 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6125—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via Internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • H04J3/067—Details of the timestamp structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0673—Clock or time synchronisation among packet nodes using intermediate nodes, e.g. modification of a received timestamp before further transmission to the next packet node, e.g. including internal delay time or residence time into the packet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0685—Clock or time synchronisation in a node; Intranode synchronisation
    • H04J3/0697—Synchronisation in a packet node
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2807—Exchanging configuration information on appliance services in a home automation network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/283—Processing of data at an internetworking point of a home automation network
    • H04L12/2834—Switching of information between an external network and a home network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2838—Distribution of signals within a home automation network, e.g. involving splitting/multiplexing signals to/from different paths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L2012/284—Home automation networks characterised by the type of medium used
    • H04L2012/2841—Wireless
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L2012/284—Home automation networks characterised by the type of medium used
    • H04L2012/2843—Mains power line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L2012/2847—Home automation networks characterised by the type of home appliance used
    • H04L2012/2849—Audio/video appliances

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Small-Scale Networks (AREA)

Abstract

"REMOçãO DE AGITAçãO DE MULTIMìDIA EM UMA REDE DOMéSTICA DIGITAL ASSìNCRONA". Trata-se de um método e um aparelho utilizando um esquema de temporização de nível de sistema para remover a agitação a partir de pacotes de multimídia distribuídos através de uma rede assíncrona, em particular, uma rede assíncrona. A presente invenção supera os problemas associados com agitação introduzidos em uma rede assíncrona pela utilização de vários selos de tempo para sincronizar um relógio de dispositivo de cliente a um relógio de extremidade dianteira e para controlar o fluxo de dados no dispositivo de cliente de forma que coincidam com a taxa na qual os dados são recebidos por um receptor de banda larga acoplado à extremidade dianteira. Um primeiro selo de tempo é anexado aos pacotes de transporte quando os pacotes são recebidos a partir da extremidade dianteira. Um segundo selo de tempo é localizado no quadro de dados quando o quadro de dados é localizado na rede. Um terceiro selo de tempo é localizado no quadro de dados quando o quadro de dados é recebido da rede. Os segundo e terceiro selos de tempo são utilizados para sincronizar o relógio de cliente para o relógio de servidor, que por sua vez é travado em freq³ência ao relógio de extremidade dianteira. O primeiro selo de tempo é utilizado para o controle de fluxo de dados no qual o cliente controla o fluxo de dados de forma a corresponder à taxa na qual os dados são recebidos no servidor.
BR0112335-1A 2000-07-20 2001-06-29 Remoção de agitação de multimìdia em uma rede doméstica digital assìncrona BR0112335A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21976600P 2000-07-20 2000-07-20
PCT/US2001/020845 WO2002009331A2 (en) 2000-07-20 2001-06-29 Multi-media jitter removal in an asynchronous digital home network

Publications (1)

Publication Number Publication Date
BR0112335A true BR0112335A (pt) 2003-07-29

Family

ID=22820688

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0112335-1A BR0112335A (pt) 2000-07-20 2001-06-29 Remoção de agitação de multimìdia em uma rede doméstica digital assìncrona

Country Status (10)

Country Link
US (1) US7483451B2 (pt)
EP (1) EP1302008B1 (pt)
JP (1) JP4546026B2 (pt)
KR (1) KR100777037B1 (pt)
CN (1) CN100492943C (pt)
AU (1) AU2001271682A1 (pt)
BR (1) BR0112335A (pt)
DE (1) DE60136543D1 (pt)
MX (1) MXPA03000535A (pt)
WO (1) WO2002009331A2 (pt)

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Also Published As

Publication number Publication date
MXPA03000535A (es) 2003-05-14
CN1443403A (zh) 2003-09-17
DE60136543D1 (de) 2008-12-24
KR20030014404A (ko) 2003-02-17
WO2002009331A3 (en) 2002-08-08
CN100492943C (zh) 2009-05-27
WO2002009331A2 (en) 2002-01-31
EP1302008A2 (en) 2003-04-16
US7483451B2 (en) 2009-01-27
KR100777037B1 (ko) 2007-11-16
EP1302008B1 (en) 2008-11-12
JP4546026B2 (ja) 2010-09-15
US20040090994A1 (en) 2004-05-13
JP2004505497A (ja) 2004-02-19
AU2001271682A1 (en) 2002-02-05

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B09B Patent application refused [chapter 9.2 patent gazette]

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B09B Patent application refused [chapter 9.2 patent gazette]

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