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 PDFInfo
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- 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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Images
Classifications
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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
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- 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)
- Television Systems (AREA)
- Picture Signal Circuits (AREA)
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 (6)
Country | Link |
---|---|
JP (1) | JP2001522203A (ja) |
KR (1) | KR100564836B1 (ja) |
CN (1) | CN1143523C (ja) |
AU (1) | AU1270699A (ja) |
HK (1) | HK1035288A1 (ja) |
WO (1) | WO1999023816A1 (ja) |
Families Citing this family (15)
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 |
WO2004049699A2 (en) * | 2002-11-26 | 2004-06-10 | Thomson Licensing S.A. | Apparatus and method for detecting ntsc co-channel interference |
AU2003290732A1 (en) * | 2002-11-26 | 2004-06-18 | Thomson Licensing S.A. | A carrier tracking loop lock detector |
JP2006507759A (ja) * | 2002-11-26 | 2006-03-02 | トムソン ライセンシング | Ntsc信号検出器 |
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)
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 |
-
1998
- 1998-10-15 KR KR1020007004456A patent/KR100564836B1/ko not_active IP Right Cessation
- 1998-10-15 WO PCT/US1998/021799 patent/WO1999023816A1/en active IP Right Grant
- 1998-10-15 AU AU12706/99A patent/AU1270699A/en not_active Abandoned
- 1998-10-15 CN CNB988128578A patent/CN1143523C/zh not_active Expired - Fee Related
- 1998-10-15 JP JP2000519549A patent/JP2001522203A/ja active Pending
-
2001
- 2001-08-22 HK HK01105940A patent/HK1035288A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR100564836B1 (ko) | 2006-03-30 |
CN1285993A (zh) | 2001-02-28 |
AU1270699A (en) | 1999-05-24 |
KR20010031426A (ko) | 2001-04-16 |
JP2001522203A (ja) | 2001-11-13 |
WO1999023816A1 (en) | 1999-05-14 |
HK1035288A1 (en) | 2001-11-16 |
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