WO1999023816A1 - Co-channel interference detection network for an hdtv receiver - Google Patents
Co-channel interference detection network for an hdtv receiver Download PDFInfo
- Publication number
- WO1999023816A1 WO1999023816A1 PCT/US1998/021799 US9821799W WO9923816A1 WO 1999023816 A1 WO1999023816 A1 WO 1999023816A1 US 9821799 W US9821799 W US 9821799W WO 9923816 A1 WO9923816 A1 WO 9923816A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- datastream
- demodulated
- symbol
- data
- received
- Prior art date
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 MPEG 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
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU12706/99A AU1270699A (en) | 1997-10-31 | 1998-10-15 | Co-channel interference detection network for an hdtv receiver |
JP2000519549A JP2001522203A (en) | 1997-10-31 | 1998-10-15 | Co-channel interference detection network for HDTV receiver |
KR1020007004456A KR100564836B1 (en) | 1997-10-31 | 1998-10-15 | Apparatus and method for use in a system for processing a received vestigial sidebandvsb modulated signal |
HK01105940A HK1035288A1 (en) | 1997-10-31 | 2001-08-22 | Co-channel interference detection network for an hdtv receiver. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9723052.8A GB9723052D0 (en) | 1997-10-31 | 1997-10-31 | High definition television vsb receiver |
GB9723052.8 | 1997-10-31 | ||
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 (1)
Publication Number | Publication Date |
---|---|
WO1999023816A1 true WO1999023816A1 (en) | 1999-05-14 |
Family
ID=26312528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1998/021799 WO1999023816A1 (en) | 1997-10-31 | 1998-10-15 | 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) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100392449B1 (en) * | 2001-07-16 | 2003-07-23 | 삼성전자주식회사 | restoring system of digital TV signal and restoration method thereof |
WO2003065718A2 (en) * | 2002-01-30 | 2003-08-07 | Ericsson, Inc. | Television receivers and methods for processing signal sample streams synchronously with line/frame patterns |
SG97952A1 (en) * | 1999-10-26 | 2003-08-20 | Thomson Licensing Sa | Demodulator for an hdtv receiver |
WO2004049699A2 (en) * | 2002-11-26 | 2004-06-10 | Thomson Licensing S.A. | Apparatus and method for detecting ntsc co-channel interference |
SG110041A1 (en) * | 2002-05-30 | 2005-04-28 | Samsung Electronics Co Ltd | Carrier recovery apparatus of digital broadcasting receiver using two(2) pilot signals |
EP1566056A2 (en) * | 2002-11-26 | 2005-08-24 | Thomson Licensing S.A. | A carrier tracking loop lock detector |
JP2006174424A (en) * | 2004-11-12 | 2006-06-29 | Micronas Gmbh | Method and circuit for channel filtering of analog-modulated or digital-modulated tv signal |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2003298620A1 (en) * | 2002-11-26 | 2004-06-18 | Thomson Licensing S.A. | An 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 (en) * | 2004-08-27 | 2006-05-10 | 삼성전자주식회사 | Carrier recovery apparatus for vsb type receiver and methods thereof |
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 |
Citations (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 |
US5546132A (en) * | 1994-12-07 | 1996-08-13 | Goldstar Co., Ltd. | NTSC interference detector |
US5604541A (en) * | 1994-11-14 | 1997-02-18 | Lg Electronics Inc. | High definition television receiver |
EP0772349A2 (en) * | 1995-10-31 | 1997-05-07 | Samsung Electronics Co., Ltd. | Apparatus and method of controlling driving selection of NTSC rejection filter |
-
1998
- 1998-10-15 JP JP2000519549A patent/JP2001522203A/en active Pending
- 1998-10-15 AU AU12706/99A patent/AU1270699A/en not_active Abandoned
- 1998-10-15 KR KR1020007004456A patent/KR100564836B1/en not_active IP Right Cessation
- 1998-10-15 WO PCT/US1998/021799 patent/WO1999023816A1/en active IP Right Grant
- 1998-10-15 CN CNB988128578A patent/CN1143523C/en not_active Expired - Fee Related
-
2001
- 2001-08-22 HK HK01105940A patent/HK1035288A1/en not_active IP Right Cessation
Patent Citations (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 |
US5604541A (en) * | 1994-11-14 | 1997-02-18 | Lg Electronics Inc. | High definition television receiver |
US5546132A (en) * | 1994-12-07 | 1996-08-13 | Goldstar Co., Ltd. | NTSC interference detector |
EP0772349A2 (en) * | 1995-10-31 | 1997-05-07 | Samsung Electronics Co., Ltd. | Apparatus and method of controlling driving selection of NTSC rejection filter |
Cited By (16)
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 |
SG97952A1 (en) * | 1999-10-26 | 2003-08-20 | Thomson Licensing Sa | Demodulator for an hdtv receiver |
KR100392449B1 (en) * | 2001-07-16 | 2003-07-23 | 삼성전자주식회사 | restoring system of digital TV signal and restoration method thereof |
EP1954035A1 (en) * | 2002-01-30 | 2008-08-06 | Ericsson Inc. | Television receivers and methods for processing signal sample streams synchronously with line/frame patterns |
WO2003065718A3 (en) * | 2002-01-30 | 2003-11-27 | Ericsson Inc | Television receivers and methods for processing signal sample streams synchronously with line/frame patterns |
US7038733B2 (en) | 2002-01-30 | 2006-05-02 | Ericsson Inc. | Television receivers and methods for processing signal sample streams synchronously with line/frame patterns |
EP1933558A3 (en) * | 2002-01-30 | 2008-08-06 | Ericsson Inc. | Television receivers and methods for processing signal sample streams synchronously with line/frame patterns |
WO2003065718A2 (en) * | 2002-01-30 | 2003-08-07 | Ericsson, Inc. | Television receivers and methods for processing signal sample streams synchronously with line/frame patterns |
EP1942665A3 (en) * | 2002-01-30 | 2008-08-06 | Ericsson Inc. | Television receivers and methods for processing signal sample streams synchronously with line/frame patterns |
KR100966383B1 (en) * | 2002-01-30 | 2010-06-28 | 에릭슨 인크. | Television receivers and methods for processing signal sample streams synchronously with line/frame patterns |
SG110041A1 (en) * | 2002-05-30 | 2005-04-28 | Samsung Electronics Co Ltd | Carrier recovery apparatus of digital broadcasting receiver using two(2) pilot signals |
WO2004049699A2 (en) * | 2002-11-26 | 2004-06-10 | Thomson Licensing S.A. | Apparatus and method for detecting ntsc co-channel interference |
WO2004049699A3 (en) * | 2002-11-26 | 2004-10-14 | Thomson Licensing Sa | Apparatus and method for detecting ntsc co-channel interference |
EP1566056A2 (en) * | 2002-11-26 | 2005-08-24 | Thomson Licensing S.A. | A carrier tracking loop lock detector |
US7567298B2 (en) | 2002-11-26 | 2009-07-28 | Thomson Licensing | Apparatus and method for detecting NTSC co-channel interference |
JP2006174424A (en) * | 2004-11-12 | 2006-06-29 | Micronas Gmbh | Method and circuit for channel filtering of analog-modulated or digital-modulated tv signal |
Also Published As
Publication number | Publication date |
---|---|
CN1143523C (en) | 2004-03-24 |
HK1035288A1 (en) | 2001-11-16 |
KR20010031426A (en) | 2001-04-16 |
JP2001522203A (en) | 2001-11-13 |
CN1285993A (en) | 2001-02-28 |
KR100564836B1 (en) | 2006-03-30 |
AU1270699A (en) | 1999-05-24 |
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