HK1035288A1 - Co-channel interference detection network for an hdtv receiver. - Google Patents

Co-channel interference detection network for an hdtv receiver.

Info

Publication number
HK1035288A1
HK1035288A1 HK01105940A HK01105940A HK1035288A1 HK 1035288 A1 HK1035288 A1 HK 1035288A1 HK 01105940 A HK01105940 A HK 01105940A HK 01105940 A HK01105940 A HK 01105940A HK 1035288 A1 HK1035288 A1 HK 1035288A1
Authority
HK
Hong Kong
Prior art keywords
channel interference
detection network
interference detection
hdtv receiver
hdtv
Prior art date
Application number
HK01105940A
Inventor
Tian Jun Wang
Original Assignee
Thomson Licensing Sa
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 Sa filed Critical Thomson Licensing Sa
Publication of HK1035288A1 publication Critical patent/HK1035288A1/en

Links

Classifications

    • 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)
  • Picture Signal Circuits (AREA)
  • Television Systems (AREA)
  • Synchronizing For Television (AREA)
HK01105940A 1997-10-31 2001-08-22 Co-channel interference detection network for an hdtv receiver. HK1035288A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9723052.8A GB9723052D0 (en) 1997-10-31 1997-10-31 High definition television vsb receiver
US09/140,143 US6697098B1 (en) 1998-08-26 1998-08-26 Co-channel interference detection network for an HDTV receiver
PCT/US1998/021799 WO1999023816A1 (en) 1997-10-31 1998-10-15 Co-channel interference detection network for an hdtv receiver

Publications (1)

Publication Number Publication Date
HK1035288A1 true HK1035288A1 (en) 2001-11-16

Family

ID=26312528

Family Applications (1)

Application Number Title Priority Date Filing Date
HK01105940A HK1035288A1 (en) 1997-10-31 2001-08-22 Co-channel interference detection network for an hdtv receiver.

Country Status (6)

Country Link
JP (1) JP2001522203A (en)
KR (1) KR100564836B1 (en)
CN (1) CN1143523C (en)
AU (1) AU1270699A (en)
HK (1) HK1035288A1 (en)
WO (1) WO1999023816A1 (en)

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 (en) * 2001-07-16 2003-07-23 삼성전자주식회사 restoring system of digital TV signal and restoration method thereof
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 (en) * 2002-05-30 2008-09-24 삼성전자주식회사 Carrier Recovery Apparatus of digital broadcasting receiver using the 2 pilot signal
KR20050085089A (en) * 2002-11-26 2005-08-29 톰슨 라이센싱 소시에떼 아노님 An ntsc signal detector
KR100999493B1 (en) * 2002-11-26 2010-12-09 톰슨 라이센싱 A carrier tracking loop lock detector
JP2006507760A (en) * 2002-11-26 2006-03-02 トムソン ライセンシング Apparatus and method for detecting NTSC co-channel interference
US7672285B2 (en) * 2004-06-28 2010-03-02 Dtvg Licensing, Inc. Method and apparatus for minimizing co-channel interference by scrambling
KR100577703B1 (en) * 2004-08-27 2006-05-10 삼성전자주식회사 Carrier recovery apparatus for vsb type receiver and methods thereof
DE102004054893A1 (en) * 2004-11-12 2006-05-24 Micronas Gmbh Method and circuit arrangement for channel filtering analog or digitally modulated TV signals
CN1988435B (en) * 2006-12-19 2011-06-08 上海广电（集团）有限公司中央研究院 Digital bit synchronizing method
CN101841503B (en) * 2009-03-20 2014-01-15 高通创锐讯企业管理(上海)有限公司 Method for recovering sampling clock in VSB (Vestigial Sideband) modulating system
JP5561093B2 (en) * 2010-10-15 2014-07-30 富士通株式会社 Data determination circuit and receiving apparatus
CN103297363B (en) * 2012-02-27 2016-03-16 晨星软件研发(深圳)有限公司 Symbol rate checkout gear and symbol rate detection method
TWI822030B (en) * 2022-05-05 2023-11-11 律芯科技股份有限公司 Noise shaping digital automatic gain control system

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 (en) * 1994-11-14 1996-06-17 이헌조 HTV receiver
US5546132A (en) * 1994-12-07 1996-08-13 Goldstar Co., Ltd. NTSC interference detector
KR0151529B1 (en) * 1995-10-31 1998-10-15 김광호 Apparatus and method for controlling the operation selection of ntsc rejection filter

Also Published As

Publication number Publication date
WO1999023816A1 (en) 1999-05-14
KR20010031426A (en) 2001-04-16
KR100564836B1 (en) 2006-03-30
AU1270699A (en) 1999-05-24
CN1143523C (en) 2004-03-24
CN1285993A (en) 2001-02-28
JP2001522203A (en) 2001-11-13

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20081015