JP5230583B2 - 受信性能が向上したデジタル放送送受信機及びその信号処理方法 - Google Patents
受信性能が向上したデジタル放送送受信機及びその信号処理方法 Download PDFInfo
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- JP5230583B2 JP5230583B2 JP2009263265A JP2009263265A JP5230583B2 JP 5230583 B2 JP5230583 B2 JP 5230583B2 JP 2009263265 A JP2009263265 A JP 2009263265A JP 2009263265 A JP2009263265 A JP 2009263265A JP 5230583 B2 JP5230583 B2 JP 5230583B2
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- 238000003672 processing method Methods 0.000 title claims description 7
- 238000000034 method Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 3
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- 230000005540 biological transmission Effects 0.000 description 34
- 238000010586 diagram Methods 0.000 description 25
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- 238000013507 mapping Methods 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000007493 shaping process Methods 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
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- 230000004075 alteration Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
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- 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
- 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
- H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
- H03M13/253—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM] with concatenated 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
- H03M13/29—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 combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
- H03M13/2933—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 combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes using a block and a convolutional code
- H03M13/2936—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 combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes using a block and a convolutional code comprising an outer Reed-Solomon code and an inner convolutional code
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03178—Arrangements involving sequence estimation techniques
- H04L25/03248—Arrangements for operating in conjunction with other apparatus
- H04L25/03286—Arrangements for operating in conjunction with other apparatus with channel-decoding circuitry
-
- 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
- H04N21/23611—Insertion of stuffing data into a multiplex stream, e.g. to obtain a constant bitrate
-
- 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
- H04N21/4346—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 involving stuffing data, e.g. packets or bytes
-
- 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
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
- H04H60/07—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information characterised by processes or methods for the generation
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Probability & Statistics with Applications (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Error Detection And Correction (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Circuits Of Receivers In General (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Description
120 RS符号化部
130 インタリーブ部
140 トレリス符号化部
150 多重化部
160 変調及びRF部
210 復調部
220 等化部
230 トレリス復号化部
240 デインタリーブ部
250 RS復号化部
260 逆ランダム化部
610 ランダム化部
620 スタッフバイト交換部
630 RS符号化部
640 インタリーブ部
650 トレリス符号化部
660 RSパリティ生成部
670 多重化部
680 制御部
800 RSパリティ生成部
810 シンボル−バイト交換器
820 デインタリーバ
830 パケットバッファ
840 RS符号化器
850 インタリーバ
860 バイト−シンボル交換器
910 バイトマッパ
920 パケットバッファ
930 RS符号化器
940 シンボルマッパ
1200 MUX
1250 MUX
1510 復調部
1520 等化部
1530 ビタビ復号化部
1540 デインタリーブ部
1550 RS復号化部
1560 逆ランダム化部
1570 制御部
1610 ランダム化部
1620 スタッフバイト交換部
1630 RS符号化部
1640 インタリーブ部
1650 トレリス符号化部
1660 RSパリティ生成部
1670 制御部
1680 多重化部
Claims (8)
- デジタル放送受信機において、
デジタル放送送信機からストリームを受信するチューナー部と、
前記ストリームを復調する復調部と、
前記復調されたストリームを等化する等化部と、
を含み、
前記ストリームは、
4シンボルの初期化バイトを含み、前記4シンボルのうち2シンボルはトレリス符号化部の初期化に用いられ、残りの2シンボルは既知のデータに用いられることを特徴とするデジタル放送受信機。 - 前記等化されたストリームを復号化する復号化部と、
前記復号化されたストリームを再整列するデインタリーブ部と、
前記デインタリーブ部で再整列されたストリームをRS復号化するRS復号化部と、
を更に含む請求項1に記載のデジタル放送受信機。 - 前記トレリス符号化部は12個のトレリス符号化器
を含むことを特徴とする請求項1に記載のデジタル放送受信機。 - 前記ストリーム内に含まれた既知データを前記等化部に提供する制御部
を更に含むことを特徴とする請求項1に記載のデジタル放送受信機。 - デジタル放送受信機のストリームの処理方法において、
デジタル放送送信機からストリームを受信するステップと、
前記ストリームを復調するステップと、
前記復調されたストリームを等化するステップと、
を含み、
前記ストリームは、
4シンボルの初期化バイトを含み、前記4シンボルのうち2シンボルはトレリス符号化部の初期化に用いられ、残りの2シンボルは既知のデータに用いられることを特徴とするデジタル放送受信機のストリームの処理方法。 - 前記等化されたストリームを復号化するステップと、
前記復号化されたストリームを再整列するステップと、
前記再整列されたストリームをRS復号化するステップと、
を更に含むことを特徴とする請求項5に記載のデジタル放送受信機のストリームの処理方法。 - 前記トレリス符号化部は12個のトレリス符号化器
を含むことを特徴とする請求項5に記載のデジタル放送受信機のストリームの処理方法。 - 前記等化ステップは、
前記ストリーム内に含まれた既知データを用いることを特徴とする請求項5に記載のデジタル放送受信機のストリームの処理方法。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US73943005P | 2005-11-25 | 2005-11-25 | |
US60/739,430 | 2005-11-25 | ||
US11/475,098 US7983354B2 (en) | 2005-11-25 | 2006-06-27 | Digital broadcast transmitter/receiver having an improved receiving performance and signal processing method thereof |
US11/475,098 | 2006-06-27 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2008542242A Division JP5084738B2 (ja) | 2005-11-25 | 2006-11-24 | 受信性能が向上したデジタル放送送受信機及びその信号処理方法 |
Publications (2)
Publication Number | Publication Date |
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JP2010093831A JP2010093831A (ja) | 2010-04-22 |
JP5230583B2 true JP5230583B2 (ja) | 2013-07-10 |
Family
ID=38067419
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JP2008542242A Expired - Fee Related JP5084738B2 (ja) | 2005-11-25 | 2006-11-24 | 受信性能が向上したデジタル放送送受信機及びその信号処理方法 |
JP2009263265A Expired - Fee Related JP5230583B2 (ja) | 2005-11-25 | 2009-11-18 | 受信性能が向上したデジタル放送送受信機及びその信号処理方法 |
JP2009263266A Expired - Fee Related JP4990957B2 (ja) | 2005-11-25 | 2009-11-18 | 受信性能が向上したデジタル放送送受信機及びその信号処理方法 |
JP2009263262A Expired - Fee Related JP4990956B2 (ja) | 2005-11-25 | 2009-11-18 | 受信性能が向上したデジタル放送送受信機及びその信号処理方法 |
JP2009263264A Expired - Fee Related JP5230582B2 (ja) | 2005-11-25 | 2009-11-18 | 受信性能が向上したデジタル放送送受信機及びその信号処理方法 |
JP2009263263A Pending JP2010045850A (ja) | 2005-11-25 | 2009-11-18 | 受信性能が向上したデジタル放送送受信機及びその信号処理方法 |
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JP2008542242A Expired - Fee Related JP5084738B2 (ja) | 2005-11-25 | 2006-11-24 | 受信性能が向上したデジタル放送送受信機及びその信号処理方法 |
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JP2009263266A Expired - Fee Related JP4990957B2 (ja) | 2005-11-25 | 2009-11-18 | 受信性能が向上したデジタル放送送受信機及びその信号処理方法 |
JP2009263262A Expired - Fee Related JP4990956B2 (ja) | 2005-11-25 | 2009-11-18 | 受信性能が向上したデジタル放送送受信機及びその信号処理方法 |
JP2009263264A Expired - Fee Related JP5230582B2 (ja) | 2005-11-25 | 2009-11-18 | 受信性能が向上したデジタル放送送受信機及びその信号処理方法 |
JP2009263263A Pending JP2010045850A (ja) | 2005-11-25 | 2009-11-18 | 受信性能が向上したデジタル放送送受信機及びその信号処理方法 |
Country Status (5)
Country | Link |
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US (6) | US7983354B2 (ja) |
JP (6) | JP5084738B2 (ja) |
CN (6) | CN101686315B (ja) |
CA (6) | CA2686275C (ja) |
WO (1) | WO2007061244A1 (ja) |
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