JPH10504689A - デジタルテレビジョン信号のためのデータフレーム構造および同期システム - Google Patents
デジタルテレビジョン信号のためのデータフレーム構造および同期システムInfo
- Publication number
- JPH10504689A JPH10504689A JP8504327A JP50432796A JPH10504689A JP H10504689 A JPH10504689 A JP H10504689A JP 8504327 A JP8504327 A JP 8504327A JP 50432796 A JP50432796 A JP 50432796A JP H10504689 A JPH10504689 A JP H10504689A
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- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 abstract description 13
- 238000012545 processing Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 23
- 230000007704 transition Effects 0.000 description 9
- 230000006870 function Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000007476 Maximum Likelihood Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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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
- H04N21/236—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
-
- 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
- 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
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
- H04L27/3416—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes
- H04L27/3427—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes in which the constellation is the n - fold Cartesian product of a single underlying two-dimensional constellation
- H04L27/3433—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes in which the constellation is the n - fold Cartesian product of a single underlying two-dimensional constellation using an underlying square constellation
-
- 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]
- H04N21/40—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
- H04N21/434—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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Artificial Intelligence (AREA)
- Error Detection And Correction (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Television Systems (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Television Signal Processing For Recording (AREA)
- Synchronizing For Television (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. 複数のソースデータバイトを表す複数の符号化されたデータ記号を、デ ータフレームを含む所定数のデータセグメントであってそのうちの所定の1つが フレーム同期セグメントを含むような前記所定数のデータセグメントに配置する 過程と、前記フレーム同期セグメントの直前のデータセグメントの最後のN個の 符号化された記号を前記フレーム同期セグメントの最後のN個の記号位置にコピ ーする過程とを含むデータフレームを構成する方法。 2. 請求の範囲1記載の方法であって、Nは12に等しく、前記所定数のデ ータセグメントは313個を含む方法。 3. 請求の範囲1または2記載の方法であって、前記フレーム同期セグメン トの直前のデータセグメントの最後のN個の符号化された記号をメモリに記憶す るために書込む過程と、記憶された前記N個の符号化された記号を前記メモリか ら読出し、前記フレーム同期セグメントの最後のN個の記号位置に挿入する過程 とを含む方法。 4. 請求の範囲1または2記載の方法であって、前記フレーム同期セグメン ト以外の各前記データセグメントは、前記ソースデータバイトの隣接する群を表 す複数の符号化された前記記号をおのおの含むN個のはさみ込まれたサブセグメ ントを含み、最初のM個のサブセグメントのおのおのの最初の記号は所定のデー タセグメント同期記号を含み、MはNより小さくて、4に等しいか、4より大き く、残りの各セグメントの最初の符号化されたデータ記号を、それぞれのサブセ グメントの符号化されたデータ記号に適切にはさみ込む方法。 5. 請求の範囲4記載の方法であって、Nは12に等しく、Mは4に等しい 方法。 6. 請求の範囲5記載の方法であって、固定した記号レートで複数のデータ 記号を供給する過程と、前記複数のデータ記号を符号化して、符号化された前記 データ記号を得る過程とを含み、前記符号化過程は、前記データ記号を長さが1 2記号間隔である遅延素子に加える過程と、前記データセグメント同期記号に対 応する記号間隔中に、前記遅延素子の出力をそれの入力端子に帰還する過程とを 含む方法。 7. 複数の連続するデータフレームを含むデータ信号を受信する手段と、復 号手段とを含み、各前記データフレームは、複数のソースデータバイトを表し、 かつ所定数のデータセグメント内に配置された複数の符号化されたデータ記号を 含み、各データフレームのデータセグメントの所定の1つはフレーム同期セグメ ントを含み、それの最後のN個の記号は直前のデータセグメントの最後のN個の 符号化されたデータ記号のコピーを含み、前記復号手段は前記受信データ信号に 応答して前記ソースデータバイトを表す複数の見積もったデータバイトを得るこ とを特徴とする受信機。 8. 請求の範囲7記載の受信機であって、前記所定の数は313に等しく、 Nは12に等しい受信機。 9. 請求の範囲7または8記載の受信機であって、前記フレーム同期セグメ ント以外の各前記データセグメントは、前記ソースデータバイトの隣接する群を 表す複数の符号化された前記記号をおのおの含むN個のはさみ込まれたサブセグ メントを含み、前記復号手段は、各前記サブセグメントを独立に復号して、隣接 するデータバイトの前記群の対応する1つを表す複数の見積もったデータバイト を得るための手段を含む受信機。 10. 請求の範囲9記載の装置であって、各データセグメントの最初のM個 のサブセグメントのおのおのの最初の記号は所定のデータセグメント同期記号を 含み、MはNより小さく、4に等しいか、4より大きく、残りの各セグメントの 最初の符号化されたデータ記号が、それぞれのサブセグメントの符号化されてい るデータ記号に適切にはさみ込まれる受信機。 11. 請求の範囲10記載の受信機であって、Nは12に等しく、Mは4に 等しい受信機。 12. 請求の範囲11記載の受信機であって、前記復号手段は長さが12記 号間隔で、前記受信手段に結合された遅延素子と、この遅延素子の出力を、前記 データセグメント同期記号に対応する記号間隔中に、それの入力端子に帰還する 手段とを含む受信機。 13. 請求の範囲11または12記載の受信機であって、受けた符号化され たデータ記号を、それより12記号間隔先行する符号化されたデータ記号から差 し引くための手段を含み、前記受信信号に応答して同一チャネル妨害を減少する 直線フィルタと、濾波された符号化された各記号をそれより12記号間隔先に発 生された濾波された符号化された記号に加える手段と、各データセグメントの記 号間隔13〜16の間に前記加える手段の出力を前記復号手段に供給し、さもな ければ前記差し引く手段の出力を前記復号手段に供給する手段とを含む受信機。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/272,357 US5629958A (en) | 1994-07-08 | 1994-07-08 | Data frame structure and synchronization system for digital television signal |
| US08/272,357 | 1994-07-08 | ||
| PCT/US1995/008135 WO1996002108A1 (en) | 1994-07-08 | 1995-06-29 | Data frame structure and synchronization system for digital television signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10504689A true JPH10504689A (ja) | 1998-05-06 |
| JP3386136B2 JP3386136B2 (ja) | 2003-03-17 |
Family
ID=23039452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50432796A Expired - Lifetime JP3386136B2 (ja) | 1994-07-08 | 1995-06-29 | デジタルテレビジョン信号のためのデータフレーム構造および同期システム |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5629958A (ja) |
| JP (1) | JP3386136B2 (ja) |
| KR (1) | KR100274288B1 (ja) |
| CN (1) | CN1166192C (ja) |
| BR (1) | BR9508262A (ja) |
| CA (1) | CA2194354C (ja) |
| MX (1) | MX9700153A (ja) |
| WO (1) | WO1996002108A1 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5398073A (en) * | 1994-04-12 | 1995-03-14 | At&T Corp. | Concatenated coded vestigial sideband modulation for high definition television |
| DE69739878D1 (de) * | 1996-04-09 | 2010-07-01 | Thomson Multimedia Sa | Detektion einer Kodesequenz in einem Trellisdekoder |
| US5914988A (en) * | 1996-04-09 | 1999-06-22 | Thomson Multimedia S.A. | Digital packet data trellis decoder |
| US5933462A (en) * | 1996-11-06 | 1999-08-03 | Qualcomm Incorporated | Soft decision output decoder for decoding convolutionally encoded codewords |
| US6122010A (en) * | 1996-12-16 | 2000-09-19 | Vidicast Ltd. | Television signal data transmission system |
| US6212654B1 (en) | 1997-07-22 | 2001-04-03 | Lucent Technologies Inc. | Coded modulation for digital storage in analog memory devices |
| CA2218321C (en) * | 1997-10-10 | 2003-01-28 | Chandra Sekhar Bontu | Detection of access bursts in tdma communications sytems |
| US6184921B1 (en) * | 1998-02-20 | 2001-02-06 | Samsung Electronics Co., Ltd. | Method for transmitting VSB digital TV with carrier frequency near co-channel NTSC audio carrier frequency |
| DE19815701A1 (de) * | 1998-04-08 | 1999-10-14 | Bosch Gmbh Robert | Verfahren zum Demodulieren einer mit einer digitalen Symbolfolge modulierten Trägerwelle |
| KR100309098B1 (ko) * | 1998-05-07 | 2001-11-15 | 윤종용 | 기준신호를갖는변복조방식디지털통신시스템수신장치에서의신호처리방법및장치와동일채널간섭신호제거를위한방법및장치 |
| US6201563B1 (en) * | 1998-06-08 | 2001-03-13 | Lsi Logic Corporation | Trellis code modulation decoder structure for advanced digital television receiver |
| US6091742A (en) * | 1998-08-17 | 2000-07-18 | Gilant Satellite Networks Ltd. | Bi-directional communications protocol |
| US6356661B1 (en) * | 1999-01-07 | 2002-03-12 | M4 Labs, Inc | Method and device for robust decoding of header information in macroblock-based compressed video data |
| US6493402B1 (en) * | 1999-05-27 | 2002-12-10 | Zenith Electronics Corporation | Mode control for trellis decoder |
| US6668014B1 (en) * | 1999-12-09 | 2003-12-23 | Ati Technologies Inc. | Equalizer method and apparatus using constant modulus algorithm blind equalization and partial decoding |
| US6958781B2 (en) * | 2000-04-18 | 2005-10-25 | Zenith Electronics Corporation | Mapping arrangement for digital communication system |
| KR100672561B1 (ko) | 2000-09-22 | 2007-01-23 | 엘지전자 주식회사 | 디지털 티브이의 통신 시스템 |
| KR100351829B1 (ko) * | 2000-09-26 | 2002-09-11 | 엘지전자 주식회사 | 디지털 통신 시스템 |
| KR100351831B1 (ko) * | 2000-10-02 | 2002-09-11 | 엘지전자 주식회사 | Vsb 송신 시스템 |
| KR100673419B1 (ko) * | 2000-12-28 | 2007-01-24 | 엘지전자 주식회사 | 전송 시스템 및 데이터 처리 방법 |
| KR100674423B1 (ko) * | 2001-01-19 | 2007-01-29 | 엘지전자 주식회사 | 송/수신 시스템 및 데이터 처리 방법 |
| US7110048B2 (en) * | 2001-03-30 | 2006-09-19 | Weiss S Merrill | Digital signal transmitter synchronization system |
| US6947487B2 (en) * | 2001-04-18 | 2005-09-20 | Lg Electronics Inc. | VSB communication system |
| US7631340B2 (en) * | 2001-04-18 | 2009-12-08 | Lg Electronics Inc. | VSB communication system |
| KR100734351B1 (ko) * | 2001-04-20 | 2007-07-03 | 엘지전자 주식회사 | 디지털 방송 전송 시스템 |
| KR100736500B1 (ko) * | 2001-04-25 | 2007-07-06 | 엘지전자 주식회사 | 디지털티브이의 브이에스비 통신시스템 |
| KR100706508B1 (ko) * | 2001-04-25 | 2007-04-11 | 엘지전자 주식회사 | 디지털티브이의 브이에스비 통신시스템 |
| KR100793766B1 (ko) * | 2001-06-11 | 2008-01-10 | 엘지전자 주식회사 | 디지털 전송 시스템 및 방법 |
| KR100850932B1 (ko) * | 2001-06-11 | 2008-08-12 | 엘지전자 주식회사 | 디지털 전송 시스템 및 방법 |
| KR100510679B1 (ko) * | 2003-03-21 | 2005-08-31 | 엘지전자 주식회사 | 디지털 vsb 전송 시스템 및 부가 데이터 다중화 방법 |
| US7599348B2 (en) * | 2003-11-04 | 2009-10-06 | Lg Electronics Inc. | Digital E8-VSB reception system and E8-VSB data demultiplexing method |
| CN101310552A (zh) * | 2005-11-04 | 2008-11-19 | 汤姆森特许公司 | 在低信噪比下感测高级电视系统委员会信号的装置和方法 |
| CA2633816A1 (en) * | 2005-12-16 | 2007-06-21 | Unilever Plc | Hair treatment compositions |
| US20090052588A1 (en) * | 2006-02-16 | 2009-02-26 | Wen Gao | Apparatus and Method for Sensing an Atsc Signal in Low Signal-to-Noise Ratio |
| JP2010527558A (ja) * | 2007-05-16 | 2010-08-12 | トムソン ライセンシング | 信号を符号化および復号する方法および装置 |
| MX2010004146A (es) | 2007-10-15 | 2010-05-17 | Thomson Licensing | Aparatos y metodos para codificar y decodificar se?ales. |
| KR101513283B1 (ko) * | 2007-10-15 | 2015-04-17 | 톰슨 라이센싱 | 버스트 모드 활동을 통신하기 위한 장치 및 방법 |
| US8239737B2 (en) * | 2009-12-10 | 2012-08-07 | Intel Corporation | Data line storage and transmission utilizing both error correcting code and synchronization information |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3934248A1 (de) * | 1989-10-13 | 1991-04-18 | Standard Elektrik Lorenz Ag | Multiplexer und demultiplexer, insbesondere fuer nachrichtenuebertragungs-netze mit einer synchronen hierarchie der digitalsignale |
| US5087975A (en) * | 1990-11-09 | 1992-02-11 | Zenith Electronics Corporation | VSB HDTV transmission system with reduced NTSC co-channel interference |
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-
1994
- 1994-07-08 US US08/272,357 patent/US5629958A/en not_active Expired - Lifetime
-
1995
- 1995-06-29 CA CA002194354A patent/CA2194354C/en not_active Expired - Lifetime
- 1995-06-29 JP JP50432796A patent/JP3386136B2/ja not_active Expired - Lifetime
- 1995-06-29 BR BR9508262A patent/BR9508262A/pt not_active IP Right Cessation
- 1995-06-29 KR KR1019970700046A patent/KR100274288B1/ko not_active Expired - Lifetime
- 1995-06-29 WO PCT/US1995/008135 patent/WO1996002108A1/en not_active Ceased
- 1995-06-29 CN CNB951939823A patent/CN1166192C/zh not_active Expired - Lifetime
- 1995-06-29 MX MX9700153A patent/MX9700153A/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN1166192C (zh) | 2004-09-08 |
| US5629958A (en) | 1997-05-13 |
| MX9700153A (es) | 1997-04-30 |
| CA2194354C (en) | 2001-02-20 |
| WO1996002108A1 (en) | 1996-01-25 |
| JP3386136B2 (ja) | 2003-03-17 |
| BR9508262A (pt) | 1997-12-23 |
| CN1151813A (zh) | 1997-06-11 |
| KR100274288B1 (ko) | 2000-12-15 |
| KR970705305A (ko) | 1997-09-06 |
| CA2194354A1 (en) | 1996-01-25 |
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