JP4669063B2 - 受信性能及び等化性能の向上されたデジタル放送送受信システム及びその信号処理方法 - Google Patents
受信性能及び等化性能の向上されたデジタル放送送受信システム及びその信号処理方法 Download PDFInfo
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- JP4669063B2 JP4669063B2 JP2009253489A JP2009253489A JP4669063B2 JP 4669063 B2 JP4669063 B2 JP 4669063B2 JP 2009253489 A JP2009253489 A JP 2009253489A JP 2009253489 A JP2009253489 A JP 2009253489A JP 4669063 B2 JP4669063 B2 JP 4669063B2
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- 230000005540 biological transmission Effects 0.000 title claims description 22
- 238000003672 processing method Methods 0.000 title claims description 7
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 17
- 238000010586 diagram Methods 0.000 description 11
- 238000012937 correction Methods 0.000 description 8
- 238000013075 data extraction Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005562 fading Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/015—High-definition television systems
-
- 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
- H04L1/0041—Arrangements at the transmitter end
-
- 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
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/23412—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs for generating or manipulating the scene composition of objects, e.g. MPEG-4 objects
-
- 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
- H04N21/23608—Remultiplexing multiplex streams, e.g. involving modifying time stamps or remapping the packet identifiers
-
- 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
- H04N21/4344—Remultiplexing of multiplex streams, e.g. by modifying time stamps or remapping the packet identifiers
-
- 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
- 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
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L2001/0092—Error control systems characterised by the topology of the transmission link
- H04L2001/0093—Point-to-multipoint
-
- 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
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03375—Passband transmission
- H04L2025/03382—Single of vestigal sideband
-
- 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
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Error Detection And Correction (AREA)
- Time-Division Multiplex Systems (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Description
(実施形態)
以下、図面に基づいて本発明について詳細に説明する。
120 RSエンコーダ
130 インターリーバ
140 トレリスエンコーダ
150 MUX
160 VSB変調器及びRFアップコンバータ
210 復調部
220 等化部
230 ビタビデコーダ
240 デインターリーバ
250 RSデコーダ
260 逆ランダム化部
310 データランダム化部
315 スタッフバイト交換部
320 RSエンコーダ
325 パケットバッファ
330 インターリーバ
335 パリティー再構成部
340 トレリスエンコーダ
350 MUX
360 VSB変調器及びRFアップコンバータ
410 復調部
420 等化部
430 ビタビデコーダ
440 デインターリーバ
450 RSデコーダ
460 逆ランダム化部
470 既知データ検出部
471 既知シンボル個数検出部
472 セグメントフラッグ生成部
473 トレリスインタリーブ
474 既知データ抽出部
510 データランダム化部
513 シーケンス提供部
515 スタッフバイト交換部
520 RSエンコーダ
525 パケットバッファ
530 インターリーバ
535 パリティー再構成部
540 トレリスエンコーダ
550 MUX
560 VSB変調器及びRFアップコンバータ
610 復調部
620 等化部
630 ビタビデコーダ
640 デインターリーバ
650 RSデコーダ
660 逆ランダム化部
670 既知データ検出部
Claims (4)
- 既知データの挿入された伝送ストリームをエンコーディングするリードソロモンエンコーダと、
前記エンコーディングされた伝送ストリームをインターリービングするインターリーバと、
内部メモリを用いて前記インターリービングされた伝送ストリームをトレリスエンコーディングし、トレリスリセット作業の制御のための制御信号に応じて、前記既知データがトレリスエンコーディングされる開始点で前記内部メモリをリセットするトレリスエンコーディング部と、
前記内部メモリのリセットによって変更されたデータに対するリードソロモンパリティを訂正するリードソロモンリエンコーディング部と
を含むデジタル放送送信機。 - 前記既知データを前記伝送ストリーム内に挿入する既知データ挿入部
を更に含む請求項1に記載のデジタル放送送信機。 - 既知データの挿入された伝送ストリームをエンコーディングするステップと、
前記エンコーディングされた伝送ストリームをインターリービングするステップと、
トレリスエンコーダ内の内部メモリを用いて前記インターリービングされた伝送ストリームをトレリスエンコーディングし、トレリスリセット作業の制御のための制御信号に応じて、前記既知データがトレリスエンコーディングされる開始点で前記内部メモリをリセットするステップと、
前記内部メモリのリセットによって変更されたデータに対するリードソロモンパリティを訂正するステップと
を含むデジタル放送送信機のストリーム処理方法。 - 前記既知データを前記伝送ストリーム内に挿入するステップ
を更に含む請求項3に記載のデジタル放送送信機のストリーム処理方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040047153A KR100744055B1 (ko) | 2004-06-23 | 2004-06-23 | 수신 성능 및 등화 성능이 향상된 디지털 방송 송수신 시스템 및 그의 신호처리방법 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007516402A Division JP4668987B2 (ja) | 2004-06-23 | 2005-06-23 | 受信性能及び等化性能の向上されたデジタル放送送受信システム及びその信号処理方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010035213A JP2010035213A (ja) | 2010-02-12 |
JP4669063B2 true JP4669063B2 (ja) | 2011-04-13 |
Family
ID=35782012
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007516402A Expired - Fee Related JP4668987B2 (ja) | 2004-06-23 | 2005-06-23 | 受信性能及び等化性能の向上されたデジタル放送送受信システム及びその信号処理方法 |
JP2009253489A Expired - Fee Related JP4669063B2 (ja) | 2004-06-23 | 2009-11-04 | 受信性能及び等化性能の向上されたデジタル放送送受信システム及びその信号処理方法 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007516402A Expired - Fee Related JP4668987B2 (ja) | 2004-06-23 | 2005-06-23 | 受信性能及び等化性能の向上されたデジタル放送送受信システム及びその信号処理方法 |
Country Status (12)
Country | Link |
---|---|
US (6) | US7738581B2 (ja) |
EP (2) | EP2131515A3 (ja) |
JP (2) | JP4668987B2 (ja) |
KR (1) | KR100744055B1 (ja) |
CN (1) | CN1973542B (ja) |
BR (1) | BRPI0512505A (ja) |
CA (1) | CA2568023C (ja) |
HK (1) | HK1100608A1 (ja) |
MX (1) | MXPA06014982A (ja) |
RU (2) | RU2350037C2 (ja) |
SG (1) | SG153853A1 (ja) |
WO (1) | WO2006001635A1 (ja) |
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EP1759528A4 (en) | 2016-01-27 |
CN1973542B (zh) | 2010-05-12 |
US8194797B2 (en) | 2012-06-05 |
KR100744055B1 (ko) | 2007-07-30 |
US20070033475A1 (en) | 2007-02-08 |
RU2008142151A (ru) | 2010-04-27 |
HK1100608A1 (en) | 2007-09-21 |
US8059741B2 (en) | 2011-11-15 |
EP2131515A2 (en) | 2009-12-09 |
BRPI0512505A (pt) | 2008-03-11 |
CA2568023C (en) | 2013-08-27 |
US8127210B2 (en) | 2012-02-28 |
SG153853A1 (en) | 2009-07-29 |
US20090103657A1 (en) | 2009-04-23 |
EP2131515A3 (en) | 2016-02-17 |
US7738581B2 (en) | 2010-06-15 |
US20090116580A1 (en) | 2009-05-07 |
RU2350037C2 (ru) | 2009-03-20 |
KR20050122023A (ko) | 2005-12-28 |
MXPA06014982A (es) | 2007-02-08 |
WO2006001635A1 (en) | 2006-01-05 |
US20090103647A1 (en) | 2009-04-23 |
JP4668987B2 (ja) | 2011-04-13 |
EP1759528A1 (en) | 2007-03-07 |
CA2568023A1 (en) | 2006-01-05 |
US20070253502A1 (en) | 2007-11-01 |
JP2008503915A (ja) | 2008-02-07 |
JP2010035213A (ja) | 2010-02-12 |
US8312357B2 (en) | 2012-11-13 |
RU2006145867A (ru) | 2008-06-27 |
CN1973542A (zh) | 2007-05-30 |
US7752528B2 (en) | 2010-07-06 |
US20090103660A1 (en) | 2009-04-23 |
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