BR9804211A - Método e aparelho para nova regulagem de um sinal digital. - Google Patents

Método e aparelho para nova regulagem de um sinal digital.

Info

Publication number
BR9804211A
BR9804211A BR9804211-4A BR9804211A BR9804211A BR 9804211 A BR9804211 A BR 9804211A BR 9804211 A BR9804211 A BR 9804211A BR 9804211 A BR9804211 A BR 9804211A
Authority
BR
Brazil
Prior art keywords
digital signal
digital
indicator
transmitted
signal
Prior art date
Application number
BR9804211-4A
Other languages
English (en)
Inventor
Edwin Loverseed
Original Assignee
Ndl Limited
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 Ndl Limited filed Critical Ndl Limited
Publication of BR9804211A publication Critical patent/BR9804211A/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]
    • H04N21/20—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—Synchronization processes, e.g. processing of PCR [Program Clock References]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/062—Synchronisation of signals having the same nominal but fluctuating bit rates, e.g. using buffers
    • H04J3/0632—Synchronisation of packets and cells, e.g. transmission of voice via a packet network, circuit emulation service [CES]
    • 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
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/23406—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving management of server-side video buffer
    • 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
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/44004—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video buffer management, e.g. video decoder buffer or video display buffer
    • 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
    • H04N21/64307—ATM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478—Provisions for broadband connections
    • 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
    • H04L2012/5614—User Network Interface
    • H04L2012/5616—Terminal equipment, e.g. codecs, synch.
    • 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
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity
    • H04L2012/5652—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly
    • 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
    • H04L2012/5672—Multiplexing, e.g. coding, scrambling
    • H04L2012/5674—Synchronisation, timing recovery or alignment

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Hardware Design (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Television Systems (AREA)

Abstract

<B>MéTODO E APARELHO PARA NOVA REGULAGEM DE UM SINAL DIGITAL<D>. A presente invenção refere-se a geralmente à recepção de sinais digitais e mais especificamente a um método e aparelho para nova regulagem de sinais digitais. A invenção é de uso específico no campo de transmissão de vídeo digital. A presente invenção fornece um método de receber um sinal digital composto de um ou mais pacotes que foi transmitido em um canal. Um indicador é aplicado para cada pacote do sinal digital. O indicador é característico da posição relativa de cada pacote com relação a tempo. O sinal digital é transmitido pela liberação de cada pacote quando o indicador atinge um valor predeterminado. Os pacotes podem ser liberados de tal modo que quaisquer erros de regulagem no sinal recebido em relação a um sinal transmitido original são removidos.
BR9804211-4A 1997-10-27 1998-10-26 Método e aparelho para nova regulagem de um sinal digital. BR9804211A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9722500.7A GB9722500D0 (en) 1997-10-27 1997-10-27 Method and apparatus for re-timing a digital signal

Publications (1)

Publication Number Publication Date
BR9804211A true BR9804211A (pt) 1999-12-21

Family

ID=10821043

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9804211-4A BR9804211A (pt) 1997-10-27 1998-10-26 Método e aparelho para nova regulagem de um sinal digital.

Country Status (5)

Country Link
EP (1) EP0912065A3 (pt)
JP (1) JPH11308248A (pt)
AU (1) AU8941998A (pt)
BR (1) BR9804211A (pt)
GB (1) GB9722500D0 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8451701B2 (en) 2010-01-15 2013-05-28 Laufer Teknik, Inc. System and method for suppressing jitter
US8995243B2 (en) 2010-01-15 2015-03-31 Laufer Teknik, Inc. System and method for suppressing jitter in digital data signals including image, video and audio data signals

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0382243A (ja) * 1989-08-25 1991-04-08 Nec Corp セル時間順序回復装置
JPH03239038A (ja) * 1990-02-16 1991-10-24 Fujitsu Ltd Ａｔｍ網におけるバースト情報転送方式
FR2693864B1 (fr) * 1992-07-17 1994-08-26 Thomson Csf Procédé et dispositif de synchronisation d'un décodeur connecté à un réseau de transmission asynchrone, notamment de type ATM.
US5396492A (en) * 1993-04-28 1995-03-07 At&T Corp. Method and apparatus for adaptive clock recovery
AU8009294A (en) * 1994-03-29 1995-10-17 Scientific-Atlanta, Inc. Method for preserving the original timebase of a program in a multiplexed communications system
US5566174A (en) * 1994-04-08 1996-10-15 Philips Electronics North America Corporation MPEG information signal conversion system
US5740173A (en) * 1996-02-28 1998-04-14 Telefonaktiebolaget Lm Ericsson Asynchronous transfer mode (ATM) cell arrival monitoring system

Also Published As

Publication number Publication date
JPH11308248A (ja) 1999-11-05
EP0912065A3 (en) 2002-06-12
EP0912065A2 (en) 1999-04-28
GB9722500D0 (en) 1997-12-24
AU8941998A (en) 1999-05-13

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B15K Others concerning applications: alteration of classification

Ipc: H04N 21/242 (2011.01), H04J 3/06 (2006.0