CN1143523C - 用于高清晰度电视接收机的同信道干扰检测网络 - Google Patents

用于高清晰度电视接收机的同信道干扰检测网络 Download PDF

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Publication number
CN1143523C
CN1143523C CNB988128578A CN98812857A CN1143523C CN 1143523 C CN1143523 C CN 1143523C CN B988128578 A CNB988128578 A CN B988128578A CN 98812857 A CN98812857 A CN 98812857A CN 1143523 C CN1143523 C CN 1143523C
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CN
China
Prior art keywords
data stream
signal
filtered
demodulated data
demodulated
Prior art date
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Expired - Fee Related
Application number
CNB988128578A
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English (en)
Chinese (zh)
Other versions
CN1285993A (zh
Inventor
T・J・王
T·J·王
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Thomson Licensing SAS
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Thomson Licensing SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GBGB9723052.8A external-priority patent/GB9723052D0/en
Priority claimed from US09/140,143 external-priority patent/US6697098B1/en
Application filed by Thomson Licensing SAS filed Critical Thomson Licensing SAS
Publication of CN1285993A publication Critical patent/CN1285993A/zh
Application granted granted Critical
Publication of CN1143523C publication Critical patent/CN1143523C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • 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
    • H04L27/06—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • 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
    • H04N5/04—Synchronising
    • H04N5/08—Separation of synchronising signals from picture signals
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Synchronizing For Television (AREA)
  • Picture Signal Circuits (AREA)
  • Television Systems (AREA)
CNB988128578A 1997-10-31 1998-10-15 用于高清晰度电视接收机的同信道干扰检测网络 Expired - Fee Related CN1143523C (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9723052.8 1997-10-31
GBGB9723052.8A GB9723052D0 (en) 1997-10-31 1997-10-31 High definition television vsb receiver
US09/140,143 1998-08-26
US09/140,143 US6697098B1 (en) 1998-08-26 1998-08-26 Co-channel interference detection network for an HDTV receiver

Publications (2)

Publication Number Publication Date
CN1285993A CN1285993A (zh) 2001-02-28
CN1143523C true CN1143523C (zh) 2004-03-24

Family

ID=26312528

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB988128578A Expired - Fee Related CN1143523C (zh) 1997-10-31 1998-10-15 用于高清晰度电视接收机的同信道干扰检测网络

Country Status (5)

Country Link
JP (1) JP2001522203A (enExample)
KR (1) KR100564836B1 (enExample)
CN (1) CN1143523C (enExample)
AU (1) AU1270699A (enExample)
WO (1) WO1999023816A1 (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6707861B1 (en) 1999-10-26 2004-03-16 Thomson Licensing S.A. Demodulator for an HDTV receiver
KR100392449B1 (ko) * 2001-07-16 2003-07-23 삼성전자주식회사 디지털ｔｖ신호의 재생시스템 및 그 재생방법
US7038733B2 (en) * 2002-01-30 2006-05-02 Ericsson Inc. Television receivers and methods for processing signal sample streams synchronously with line/frame patterns
KR100859868B1 (ko) * 2002-05-30 2008-09-24 삼성전자주식회사 2개의 파일럿을 이용하여 안정되게 반송파를 복원할 수있는 디지털 방송 수신기의 반송파 복원장치
JP2006507760A (ja) * 2002-11-26 2006-03-02 トムソン ライセンシング Ｎｔｓｃ同一チャネル干渉を検出する装置および方法
US7421042B2 (en) * 2002-11-26 2008-09-02 Thomson Licensing Carrier tracking loop lock detector
US20060146200A1 (en) * 2002-11-26 2006-07-06 Edde Gabriel A Ntsc signal detector
US7672285B2 (en) * 2004-06-28 2010-03-02 Dtvg Licensing, Inc. Method and apparatus for minimizing co-channel interference by scrambling
KR100577703B1 (ko) * 2004-08-27 2006-05-10 삼성전자주식회사 Ｖｓｂ 방식 수신기를 위한 반송파 복원장치 및 그 복원방법
DE102004054893A1 (de) * 2004-11-12 2006-05-24 Micronas Gmbh Verfahren und Schaltungsanordnung zur Kanalfilterung analog oder digital modulierter TV-Signale
CN1988435B (zh) * 2006-12-19 2011-06-08 上海广电（集团）有限公司中央研究院 一种数字比特位同步方法
CN101841503B (zh) * 2009-03-20 2014-01-15 高通创锐讯企业管理(上海)有限公司 Vsb调制系统中采样时钟恢复的方法
JP5561093B2 (ja) * 2010-10-15 2014-07-30 富士通株式会社 データ判定回路および受信装置
CN103297363B (zh) * 2012-02-27 2016-03-16 晨星软件研发(深圳)有限公司 符号率检测装置及符号率检测方法
TWI822030B (zh) * 2022-05-05 2023-11-11 律芯科技股份有限公司 雜訊整型式數位自動增益控制系統

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5087975A (en) * 1990-11-09 1992-02-11 Zenith Electronics Corporation VSB HDTV transmission system with reduced NTSC co-channel interference
US5260793A (en) * 1991-07-18 1993-11-09 Zenith Electronics Corporation Receiver post coder selection circuit
US5452015A (en) * 1994-02-10 1995-09-19 Philips Electronics North America Corporation Method and apparatus for combating co-channel NTSC interference for digital TV transmission
KR960020485A (ko) * 1994-11-14 1996-06-17 이헌조 에이치디티브이(hdtv) 수신장치
US5546132A (en) * 1994-12-07 1996-08-13 Goldstar Co., Ltd. NTSC interference detector
KR0151529B1 (ko) * 1995-10-31 1998-10-15 김광호 엔티에스씨 리젝션 필터의 구동선택을 제어하는 장치 및 방법

Also Published As

Publication number Publication date
KR20010031426A (ko) 2001-04-16
JP2001522203A (ja) 2001-11-13
WO1999023816A1 (en) 1999-05-14
CN1285993A (zh) 2001-02-28
AU1270699A (en) 1999-05-24
KR100564836B1 (ko) 2006-03-30
HK1035288A1 (en) 2001-11-16

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