MX9301469A - Metodo y aparato para minimizar la propagacion de error en un sistema de comunicacion digital correlativo. - Google Patents

Metodo y aparato para minimizar la propagacion de error en un sistema de comunicacion digital correlativo.

Info

Publication number
MX9301469A
MX9301469A MX9301469A MX9301469A MX9301469A MX 9301469 A MX9301469 A MX 9301469A MX 9301469 A MX9301469 A MX 9301469A MX 9301469 A MX9301469 A MX 9301469A MX 9301469 A MX9301469 A MX 9301469A
Authority
MX
Mexico
Prior art keywords
communication system
spread
minimize
error
digital communication
Prior art date
Application number
MX9301469A
Other languages
English (en)
Inventor
Leo Montreuil
Original Assignee
Scientific Atlanta
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 Scientific Atlanta filed Critical Scientific Atlanta
Publication of MX9301469A publication Critical patent/MX9301469A/es

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
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18523—Satellite systems for providing broadcast service to terrestrial stations, i.e. broadcast satellite service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/76—Wired systems
    • H04H20/77—Wired systems using carrier waves
    • H04H20/78—CATV [Community Antenna Television] systems
    • H04H20/79—CATV [Community Antenna Television] systems using downlink of the CATV systems, e.g. audio broadcast via CATV network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
    • 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
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2365—Multiplexing of several video streams
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • 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
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4347—Demultiplexing of several video streams
    • 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
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/22—Adaptations for optical transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

Un sistema de comunicación de audio digital incluye un esquema de modulación y demodulación digital, el cual utiliza de una manera eficiente la amplitud de banda y el espaciamiento de canal de un sistema de televisión por cable. Una corriente de bit digital de 30 canales se desmultiplexa en seis grupos de cinco canales.
MX9301469A 1992-03-16 1993-03-16 Metodo y aparato para minimizar la propagacion de error en un sistema de comunicacion digital correlativo. MX9301469A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/851,588 US5287351A (en) 1990-11-27 1992-03-16 Method and apparatus for minimizing error propagation in correlative digital and communication system

Publications (1)

Publication Number Publication Date
MX9301469A true MX9301469A (es) 1994-01-31

Family

ID=25311148

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9301469A MX9301469A (es) 1992-03-16 1993-03-16 Metodo y aparato para minimizar la propagacion de error en un sistema de comunicacion digital correlativo.

Country Status (5)

Country Link
US (1) US5287351A (es)
CN (1) CN1081036A (es)
AU (1) AU3805093A (es)
MX (1) MX9301469A (es)
WO (1) WO1993019543A1 (es)

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US5239540A (en) * 1990-11-27 1993-08-24 Scientific-Atlanta, Inc. Method and apparatus for transmitting, receiving and communicating digital data signals with corresponding program data signals which describe the digital data signals
DE4111131C2 (de) * 1991-04-06 2001-08-23 Inst Rundfunktechnik Gmbh Verfahren zum Übertragen digitalisierter Tonsignale
WO1994024773A1 (en) * 1993-04-16 1994-10-27 Trans Video Electronics Inc. Global video communications systems
US5546383A (en) * 1993-09-30 1996-08-13 Cooley; David M. Modularly clustered radiotelephone system
US5572264A (en) 1994-02-14 1996-11-05 Hitachi, Ltd. High definition TV signal receiver
JP3371506B2 (ja) * 1994-02-14 2003-01-27 株式会社日立製作所 受信装置
GB2286950B (en) * 1994-02-22 1998-06-17 Roke Manor Research A direct conversion receiver
US6700958B2 (en) 1995-04-10 2004-03-02 Starguide Digital Networks, Inc. Method and apparatus for transmitting coded audio signals through a transmission channel with limited bandwidth
US5966163A (en) 1995-10-20 1999-10-12 Scientific-Atlanta, Inc. Providing constant bit rate upstream data transport in a two way cable system by scheduling preemptive grants for upstream data slots using selected fields of a plurality of grant fields
US6230203B1 (en) 1995-10-20 2001-05-08 Scientific-Atlanta, Inc. System and method for providing statistics for flexible billing in a cable environment
US7028088B1 (en) 1996-04-03 2006-04-11 Scientific-Atlanta, Inc. System and method for providing statistics for flexible billing in a cable environment
US6516466B1 (en) 1996-05-02 2003-02-04 Vincent C. Jackson Method and apparatus for portable digital entertainment system
CA2204828C (en) * 1996-05-10 2004-11-23 Ray Nuber Error detection and recovery for high rate isochronous data in mpeg-2 data streams
US5901350A (en) * 1996-09-30 1999-05-04 Fairchild Semiconductor Corporation Low distortion large swing frequency down coverter filter amplifier circuit
CA2268303A1 (en) * 1996-10-09 1998-04-16 Starguide Digital Networks Aggregate information production and display system
US6272150B1 (en) 1997-01-17 2001-08-07 Scientific-Atlanta, Inc. Cable modem map display for network management of a cable data delivery system
US6308328B1 (en) 1997-01-17 2001-10-23 Scientific-Atlanta, Inc. Usage statistics collection for a cable data delivery system
US6286058B1 (en) 1997-04-14 2001-09-04 Scientific-Atlanta, Inc. Apparatus and methods for automatically rerouting packets in the event of a link failure
US7194757B1 (en) 1998-03-06 2007-03-20 Starguide Digital Network, Inc. Method and apparatus for push and pull distribution of multimedia
US8284774B2 (en) 1998-04-03 2012-10-09 Megawave Audio Llc Ethernet digital storage (EDS) card and satellite transmission system
US6160797A (en) 1998-04-03 2000-12-12 Starguide Digital Networks, Inc. Satellite receiver/router, system, and method of use
US6141783A (en) * 1998-04-10 2000-10-31 International Business Machines Corporation Error propagation limiting encoder/decoder for multilevel decision feedback equalization
JP4267761B2 (ja) * 1999-06-07 2009-05-27 富士通株式会社 流合雑音抑圧システム及び流合雑音対策装置
GB0614543D0 (en) * 2006-07-21 2006-08-30 Vodafone Plc RF Distribution
AT504472B1 (de) * 2006-10-16 2012-10-15 Sensordynamics Ag Verfahren zur zweiseitenbandübertragung
KR101454027B1 (ko) * 2007-08-10 2014-10-24 한국전자통신연구원 병렬 구조를 가지는 시분할 다중화 통신 시스템 및 방법
US8798670B2 (en) * 2012-08-03 2014-08-05 Blackberry Limited Mobile wireless communications device with DDPDT RF switch and related methods
EP3343801A1 (en) * 2016-12-30 2018-07-04 Eutelsat S.A. Method for protection of signal blockages in a satellite mobile broadcast system
CN109672869A (zh) * 2019-02-11 2019-04-23 湖南国科微电子股份有限公司 一种分时复用图像处理装置、方法以及电子设备
US11838057B2 (en) * 2021-12-17 2023-12-05 The Boeing Company Optical communication using double sideband suppressed carrier modulation

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FR2510331A1 (fr) * 1981-07-23 1983-01-28 Leclert Alain Circuit de regeneration d'une onde porteuse
CA1232022A (en) * 1983-11-30 1988-01-26 Eisuke Fukuda Radio communication system
US4648100A (en) * 1985-03-28 1987-03-03 At&T Bell Laboratories Carrier recovery circuit
FR2581277A1 (fr) * 1985-04-30 1986-10-31 Labo Electronique Physique Circuit de recuperation de l'onde porteuse de systemes de transmissions numeriques
FR2585908B1 (fr) * 1985-07-30 1987-11-13 France Etat Procede et recepteur de transmission par paquets de signaux numeriques sur voie de grande capacite, notamment sur voie de diffusion par satellite
US5022053A (en) * 1989-04-10 1991-06-04 At&T Bell Laboratories Data communications with alternation of signaling constellations
US4959844A (en) * 1989-10-24 1990-09-25 Amp Incorporated Clock recovery circuit for digital demodulator
US5150384A (en) * 1990-09-28 1992-09-22 Motorola, Inc. Carrier recovery method and apparatus having an adjustable response time determined by carrier signal parameters

Also Published As

Publication number Publication date
AU3805093A (en) 1993-10-21
WO1993019543A1 (en) 1993-09-30
CN1081036A (zh) 1994-01-19
US5287351A (en) 1994-02-15

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