JP4584201B2 - ディジタルtvデータに関するシステム - Google Patents
ディジタルtvデータに関するシステム Download PDFInfo
- Publication number
- JP4584201B2 JP4584201B2 JP2006205238A JP2006205238A JP4584201B2 JP 4584201 B2 JP4584201 B2 JP 4584201B2 JP 2006205238 A JP2006205238 A JP 2006205238A JP 2006205238 A JP2006205238 A JP 2006205238A JP 4584201 B2 JP4584201 B2 JP 4584201B2
- Authority
- JP
- Japan
- Prior art keywords
- data
- decoder
- signal
- punctured
- input
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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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 programme guide from data received from the Internet and a Head-end or 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)
- Probability & Statistics with Applications (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Databases & Information Systems (AREA)
- Computer Networks & Wireless Communication (AREA)
- Error Detection And Correction (AREA)
- Circuits Of Receivers In General (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (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)
Description
102 衛星伝送チャネル
104 順方向エラー訂正TV送信装置
106 地上伝送チャネル
108 順方向エラー訂正TV送信装置
110 ケーブル伝送チャネル
112 順方向エラー訂正TV送信装置
200 受信装置畳み込み復号化器
202 受信装置復調器
204 マイクロコントローラ・インタフェース
300 同期回路
302 ダミー・データ・インサータ
304 分岐メトリック・コンピュータ
306 Viterbi 復号化器
308 畳み込み符号化器
310 トレリス・デマッパ
312 遅延ロジック
314 同期モニタ
316 選択手段
400 RAM
402 加算器
404 コンパレータ
Claims (1)
- 圧縮ディジタルTVデータを含む変調された信号を受信し、およびQAMとPSKを含む複数の変調フォーマットから選択された変調フォーマットに従って前記変調された信号を選択的に復調して、復調された信号を生成する復調器であって、前記変調された信号は、複数のタイプの伝送チャネルの少なくとも1つから受信され、当該復調された信号は、複数の変調フォーマットのうちの1つの変調フォーマットを示し、および当該復調された信号は、複数の符号化フォーマットのうちの少なくとも1つの符号化フォーマットで符号化された圧縮されたディジタル・データを表し、前記複数の符号化フォーマットは、少なくとも1つのトレリス符号化フォーマットと少なくとも1つのパンクチャド符号化フォーマットを含む、復調器と、
前記圧縮されたディジタル・データが符号化されている前記少なくとも1つの符号化フォーマットが、前記複数の符号化フォーマットのうちパンクチャド符号化フォーマットを含むかどうかを決定し、前記圧縮されたディジタル・データが前記パンクチャド符号化フォーマットで符号化されていると決定した場合、前記パンクチャド符号化フォーマットを選択し、当該選択されたパンクチャド符号化フォーマットに従って前記復調された信号を復号する復号器と、
前記復調された信号を復号する前記復号器を制御する、マイクロコントローラと、
を備えたシステム。
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 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30168695A Division JP4070831B2 (ja) | 1994-11-18 | 1995-11-20 | 衛星伝送と、地上伝送と、ケーブル伝送されたディジタルtvデータを復調し復号化する方法 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009008104A Division JP4780683B2 (ja) | 1994-11-18 | 2009-01-16 | 衛星伝送と、地上伝送と、ケーブル伝送されたディジタルtvデータを復調し復号化する装置 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2007014000A JP2007014000A (ja) | 2007-01-18 |
| JP2007014000A5 JP2007014000A5 (ja) | 2009-10-01 |
| JP4584201B2 true JP4584201B2 (ja) | 2010-11-17 |
Family
ID=26992910
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30168695A Expired - Lifetime JP4070831B2 (ja) | 1994-11-18 | 1995-11-20 | 衛星伝送と、地上伝送と、ケーブル伝送されたディジタルtvデータを復調し復号化する方法 |
| JP2006205238A Expired - Lifetime JP4584201B2 (ja) | 1994-11-18 | 2006-07-27 | ディジタルtvデータに関するシステム |
| JP2007297273A Expired - Lifetime JP4174549B2 (ja) | 1994-11-18 | 2007-11-15 | 衛星伝送と、地上伝送と、ケーブル伝送されたディジタルtvデータを復調し復号化する信号処理装置 |
| JP2007297274A Expired - Lifetime JP4219963B2 (ja) | 1994-11-18 | 2007-11-15 | 衛星伝送と、地上伝送と、ケーブル伝送されたディジタルtvデータを復調し復号化する方法 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30168695A Expired - Lifetime JP4070831B2 (ja) | 1994-11-18 | 1995-11-20 | 衛星伝送と、地上伝送と、ケーブル伝送されたディジタルtvデータを復調し復号化する方法 |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007297273A Expired - Lifetime JP4174549B2 (ja) | 1994-11-18 | 2007-11-15 | 衛星伝送と、地上伝送と、ケーブル伝送されたディジタルtvデータを復調し復号化する信号処理装置 |
| JP2007297274A Expired - Lifetime JP4219963B2 (ja) | 1994-11-18 | 2007-11-15 | 衛星伝送と、地上伝送と、ケーブル伝送されたディジタルtvデータを復調し復号化する方法 |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0713337A3 (ja) |
| JP (4) | JP4070831B2 (ja) |
| CN (1) | CN1107412C (ja) |
| AU (1) | AU691986B2 (ja) |
| BR (1) | BR9505197A (ja) |
| CA (1) | CA2161467C (ja) |
| MY (1) | MY114203A (ja) |
| SG (1) | SG50370A1 (ja) |
Families Citing this family (16)
| 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 |
| CA2263280C (en) * | 1998-03-04 | 2008-10-07 | International Mobile Satellite Organization | Method and apparatus for mobile satellite communication |
| 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 |
| EP3001628A4 (en) * | 2013-07-01 | 2016-05-18 | Huawei Tech Co Ltd | METHODS FOR MODULATION AND DEMODULATION OF SIGNALS, MODULATION AND DEMODULATION APPARATUSES, AND SIGNAL TRANSMISSION SYSTEM |
| 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)
| 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 |
-
1995
- 1995-10-26 CA CA002161467A patent/CA2161467C/en not_active Expired - Lifetime
- 1995-11-08 EP EP95117568A patent/EP0713337A3/en not_active Ceased
- 1995-11-08 MY MYPI95003396A patent/MY114203A/en unknown
- 1995-11-15 SG SG1995001841A patent/SG50370A1/en unknown
- 1995-11-16 BR BR9505197A patent/BR9505197A/pt not_active IP Right Cessation
- 1995-11-17 AU AU37913/95A patent/AU691986B2/en not_active Expired
- 1995-11-17 CN CN95119730A patent/CN1107412C/zh not_active Expired - Lifetime
- 1995-11-20 JP JP30168695A patent/JP4070831B2/ja not_active Expired - Lifetime
-
2006
- 2006-07-27 JP JP2006205238A patent/JP4584201B2/ja not_active Expired - Lifetime
-
2007
- 2007-11-15 JP JP2007297273A patent/JP4174549B2/ja not_active Expired - Lifetime
- 2007-11-15 JP JP2007297274A patent/JP4219963B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2161467A1 (en) | 1996-05-19 |
| CN1107412C (zh) | 2003-04-30 |
| AU691986B2 (en) | 1998-05-28 |
| JP4174549B2 (ja) | 2008-11-05 |
| JPH08223501A (ja) | 1996-08-30 |
| CA2161467C (en) | 2001-01-30 |
| JP2008118673A (ja) | 2008-05-22 |
| BR9505197A (pt) | 1997-09-16 |
| CN1132449A (zh) | 1996-10-02 |
| AU3791395A (en) | 1996-05-23 |
| EP0713337A3 (en) | 1999-01-07 |
| EP0713337A2 (en) | 1996-05-22 |
| SG50370A1 (en) | 1998-07-20 |
| JP2008136207A (ja) | 2008-06-12 |
| JP2007014000A (ja) | 2007-01-18 |
| JP4070831B2 (ja) | 2008-04-02 |
| MY114203A (en) | 2002-08-30 |
| JP4219963B2 (ja) | 2009-02-04 |
| MX9504822A (es) | 1998-03-31 |
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