SG50370A1 - Apparatus for demodulating and decoding satellite terrestrial and cable transmitted digital television data - Google Patents

Apparatus for demodulating and decoding satellite terrestrial and cable transmitted digital television data

Info

Publication number
SG50370A1
SG50370A1 SG1995001841A SG1995001841A SG50370A1 SG 50370 A1 SG50370 A1 SG 50370A1 SG 1995001841 A SG1995001841 A SG 1995001841A SG 1995001841 A SG1995001841 A SG 1995001841A SG 50370 A1 SG50370 A1 SG 50370A1
Authority
SG
Singapore
Prior art keywords
demodulating
digital television
transmitted digital
television data
cable transmitted
Prior art date
Application number
SG1995001841A
Other languages
English (en)
Inventor
Kumar Ramaswamy
John Sidney Stewart
Original Assignee
Thomson Consumer Electronics
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 US08/342,280 external-priority patent/US5497401A/en
Application filed by Thomson Consumer Electronics filed Critical Thomson Consumer Electronics
Publication of SG50370A1 publication Critical patent/SG50370A1/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/23—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using convolutional codes, e.g. unit memory codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/3961—Arrangements of methods for branch or transition metric calculation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/63—Joint error correction and other techniques
    • H03M13/6325—Error control coding in combination with demodulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/63—Joint error correction and other techniques
    • H03M13/635—Error control coding in combination with rate matching
    • H03M13/6362—Error control coding in combination with rate matching by puncturing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/65—Purpose and implementation aspects
    • H03M13/6502—Reduction of hardware complexity or efficient processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • 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
    • H04N21/438—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
    • 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
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Error Detection And Correction (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Circuits Of Receivers In General (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radio Relay Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
SG1995001841A 1994-11-18 1995-11-15 Apparatus for demodulating and decoding satellite terrestrial and cable transmitted digital television data SG50370A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/342,280 US5497401A (en) 1994-11-18 1994-11-18 Branch metric computer for a Viterbi decoder of a punctured and pragmatic trellis code convolutional decoder suitable for use in a multi-channel receiver of satellite, terrestrial and cable transmitted FEC compressed-digital television data
US08/501,752 US5717471A (en) 1994-11-18 1995-07-12 Apparatus for demodulating and decoding satellite, terrestrial and cable transmitted digital television data

Publications (1)

Publication Number Publication Date
SG50370A1 true SG50370A1 (en) 1998-07-20

Family

ID=26992910

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1995001841A SG50370A1 (en) 1994-11-18 1995-11-15 Apparatus for demodulating and decoding satellite terrestrial and cable transmitted digital television data

Country Status (8)

Country Link
EP (1) EP0713337A3 (enExample)
JP (4) JP4070831B2 (enExample)
CN (1) CN1107412C (enExample)
AU (1) AU691986B2 (enExample)
BR (1) BR9505197A (enExample)
CA (1) CA2161467C (enExample)
MY (1) MY114203A (enExample)
SG (1) SG50370A1 (enExample)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5740203A (en) * 1995-09-14 1998-04-14 Thomson Consumer Electronics, Inc. Trellis demapper of a convolutional decoder for decoding pragmatic trellis codes suitable for use in a multi-channel receiver of satellite, terrestrial and cable transmitted FEC compressed-digital television data
US6366326B1 (en) 1996-08-01 2002-04-02 Thomson Consumer Electronics Inc. System for acquiring, processing, and storing video data and program guides transmitted in different coding formats
US5946052A (en) * 1996-08-01 1999-08-31 Thomson Consumer Electronics, Inc. System for acquiring and processing video data and program guides transmitted in different coding formats
AU1048899A (en) * 1997-10-01 1999-04-23 Thomson Multimedia S.A. Apparatus and method for aligning trellis demapped data
KR100531339B1 (ko) * 1997-12-30 2006-01-27 엘지전자 주식회사 위성방송 수신기의 통합형 복호장치
KR100459114B1 (ko) * 1997-12-31 2005-09-30 엘지전자 주식회사 디지털 방송의 디인터리버장치 및 방법
CA2263277A1 (en) * 1998-03-04 1999-09-04 International Mobile Satellite Organization Carrier activation for data communications
DE10012873A1 (de) * 2000-03-16 2001-09-27 Infineon Technologies Ag Optimierter Turbo-Decodierer
FR2825221B1 (fr) * 2001-05-23 2003-10-03 Novo S A A Transmodulateur pour recepteur de television numerique et recepteur ainsi equipe
KR100450948B1 (ko) 2001-07-12 2004-10-02 삼성전자주식회사 통신시스템에서 변조방식 결정장치 및 방법
GB2392354B (en) * 2002-08-23 2006-02-01 Samsung Electronics Co Ltd Integrated modulators and demodulators
CN1320794C (zh) * 2002-11-13 2007-06-06 上海芯华微电子有限公司 收缩卷积编码的单步方法和装置
SG124272A1 (en) * 2004-02-26 2006-08-30 Oki Techno Ct Singapore Pte A modulation/demodulation apparatus for the encoding and decoding of data and a method for encoding and decoding data
WO2015000115A1 (zh) 2013-07-01 2015-01-08 华为技术有限公司 信号调制方法、解调方法、调制解调装置及信号传输系统
KR102114847B1 (ko) * 2013-10-18 2020-06-05 삼성전자주식회사 이동 통신 시스템에서 멀티미디어 데이터 송수신 방법 및 장치
CN110069237B (zh) * 2019-04-19 2021-03-26 哈尔滨理工大学 一种基于查找表的基-8除法器信号处理方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4866395A (en) * 1988-11-14 1989-09-12 Gte Government Systems Corporation Universal carrier recovery and data detection for digital communication systems
JPH0346827A (ja) * 1989-07-14 1991-02-28 Matsushita Electric Ind Co Ltd テレビジョンチューナ
US5233630A (en) * 1991-05-03 1993-08-03 Qualcomm Incorporated Method and apparatus for resolving phase ambiguities in trellis coded modulated data
US5233629A (en) * 1991-07-26 1993-08-03 General Instrument Corporation Method and apparatus for communicating digital data using trellis coded qam
JPH05110539A (ja) * 1991-10-17 1993-04-30 Fujitsu Ltd デイジタル伝送方式
JP3053283B2 (ja) * 1991-12-26 2000-06-19 株式会社東芝 符号化多値変調装置
JP3227813B2 (ja) * 1992-07-28 2001-11-12 ソニー株式会社 ディジタル画像送信装置、ディジタル画像送信方法、ディジタル画像伝送システム及びディジタル画像送受信方法
JP3348451B2 (ja) * 1993-02-04 2002-11-20 ソニー株式会社 送信方法、送信装置、ビタビ復号方法およびビタビ復号装置
US5511096A (en) * 1994-01-18 1996-04-23 Gi Corporation Quadrature amplitude modulated data for standard bandwidth television channel
US5497401A (en) * 1994-11-18 1996-03-05 Thomson Consumer Electronics, Inc. Branch metric computer for a Viterbi decoder of a punctured and pragmatic trellis code convolutional decoder suitable for use in a multi-channel receiver of satellite, terrestrial and cable transmitted FEC compressed-digital television data

Also Published As

Publication number Publication date
JP4584201B2 (ja) 2010-11-17
CN1107412C (zh) 2003-04-30
CN1132449A (zh) 1996-10-02
JP2008136207A (ja) 2008-06-12
JP2008118673A (ja) 2008-05-22
AU3791395A (en) 1996-05-23
JP2007014000A (ja) 2007-01-18
JP4174549B2 (ja) 2008-11-05
EP0713337A3 (en) 1999-01-07
EP0713337A2 (en) 1996-05-22
JPH08223501A (ja) 1996-08-30
AU691986B2 (en) 1998-05-28
JP4070831B2 (ja) 2008-04-02
JP4219963B2 (ja) 2009-02-04
MY114203A (en) 2002-08-30
MX9504822A (es) 1998-03-31
BR9505197A (pt) 1997-09-16
CA2161467A1 (en) 1996-05-19
CA2161467C (en) 2001-01-30

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