CN1497964A - 译码以不同格式编码的视频信号的装置 - Google Patents
译码以不同格式编码的视频信号的装置 Download PDFInfo
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- CN1497964A CN1497964A CNA2003101164424A CN200310116442A CN1497964A CN 1497964 A CN1497964 A CN 1497964A CN A2003101164424 A CNA2003101164424 A CN A2003101164424A CN 200310116442 A CN200310116442 A CN 200310116442A CN 1497964 A CN1497964 A CN 1497964A
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0064—Concatenated codes
- H04L1/0065—Serial concatenated codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/24—Systems for the transmission of television signals using pulse code modulation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0046—Code rate detection or code type detection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0067—Rate matching
- H04L1/0068—Rate matching by puncturing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
-
- 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]
- H04N21/20—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
- 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
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/455—Demodulation-circuits
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Artificial Intelligence (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Error Detection And Correction (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Circuits Of Receivers In General (AREA)
- Radio Relay Systems (AREA)
Abstract
Description
DSS | DVB卫星 | DVB有线 | |
时钟速率 | 速率1 | 速率2 | 速率3 |
前馈均衡 | 无 | 无 | 有 |
判决反馈均衡 | 无 | 无 | 有 |
过量带宽因数 | 20% | 35% | 15% |
调制类型 | QPSK | QPSK | QAM |
可选信号群 | 无 | 无 | 有64点或256点 |
差分输出译码 | 无 | 无 | 有 |
DSS | DVB卫星 | DVB有线 | |
数据收缩卷积码码率 | 2/36/7 | 1/22/33/45/67/8 | 不适用 |
维特比译码器 | 有 | 有 | 无 |
符号至字节映射器 | 每符号1→8比特 | 每符号1→8比特 | 每符号6→8(64-QAM)比特每符号8→8(256-QAM) |
比特 | |||
解交错器类型 | Ramsey | Forney | Forney |
解扰器 | 无 | 有 | 有 |
Claims (20)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/501,334 US5666170A (en) | 1995-07-12 | 1995-07-12 | Apparatus for decoding video signals encoded in different formats |
US501334 | 1995-07-12 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB96195471XA Division CN1150751C (zh) | 1995-07-12 | 1996-06-28 | 译码以不同格式编码的视频信号的装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN1497964A true CN1497964A (zh) | 2004-05-19 |
Family
ID=23993115
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB96195471XA Expired - Lifetime CN1150751C (zh) | 1995-07-12 | 1996-06-28 | 译码以不同格式编码的视频信号的装置 |
CNA2003101164424A Pending CN1497964A (zh) | 1995-07-12 | 1996-06-28 | 译码以不同格式编码的视频信号的装置 |
CN2008101661383A Expired - Lifetime CN101448147B (zh) | 1995-07-12 | 1996-06-28 | 译码以不同格式编码的视频信号的装置 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB96195471XA Expired - Lifetime CN1150751C (zh) | 1995-07-12 | 1996-06-28 | 译码以不同格式编码的视频信号的装置 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2008101661383A Expired - Lifetime CN101448147B (zh) | 1995-07-12 | 1996-06-28 | 译码以不同格式编码的视频信号的装置 |
Country Status (17)
Country | Link |
---|---|
US (1) | US5666170A (zh) |
EP (1) | EP0838115B1 (zh) |
JP (14) | JPH11506888A (zh) |
KR (1) | KR100444378B1 (zh) |
CN (3) | CN1150751C (zh) |
AU (1) | AU715071B2 (zh) |
BR (1) | BR9610052A (zh) |
CA (1) | CA2226505C (zh) |
DE (1) | DE69616555T2 (zh) |
ES (1) | ES2164900T3 (zh) |
HK (1) | HK1015591A1 (zh) |
IN (1) | IN190408B (zh) |
MX (1) | MX9800366A (zh) |
PL (1) | PL180857B1 (zh) |
RU (1) | RU2171548C2 (zh) |
TW (1) | TW299541B (zh) |
WO (1) | WO1997003518A1 (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103237253A (zh) * | 2013-05-15 | 2013-08-07 | 无锡北斗星通信息科技有限公司 | 兼容多种音视频信号接口并具有待机模式的dvb-s机顶盒 |
CN103501218A (zh) * | 2013-09-26 | 2014-01-08 | 西安空间无线电技术研究所 | 一种基于资源复用的多载波自适应解调方法 |
CN112583771A (zh) * | 2019-09-30 | 2021-03-30 | 瑞昱半导体股份有限公司 | 数据映射器与数据映射方法 |
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JP2964899B2 (ja) * | 1995-02-28 | 1999-10-18 | 日本電気株式会社 | 符号化と復号化周波数同期方法 |
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CN103237253B (zh) * | 2013-05-15 | 2015-12-23 | 海安欣凯富机械科技有限公司 | 兼容多种音视频信号接口并具有待机模式的dvb-s机顶盒 |
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CN103501218B (zh) * | 2013-09-26 | 2016-06-01 | 西安空间无线电技术研究所 | 一种基于资源复用的多载波自适应解调方法 |
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