CA2331831C - Signal de television numerique avec composantes d'annulation des images fantomes dans des en-tete de trame a segments multiples et dispositif de reception pour ce signal - Google Patents
Signal de television numerique avec composantes d'annulation des images fantomes dans des en-tete de trame a segments multiples et dispositif de reception pour ce signal Download PDFInfo
- Publication number
- CA2331831C CA2331831C CA002331831A CA2331831A CA2331831C CA 2331831 C CA2331831 C CA 2331831C CA 002331831 A CA002331831 A CA 002331831A CA 2331831 A CA2331831 A CA 2331831A CA 2331831 C CA2331831 C CA 2331831C
- Authority
- CA
- Canada
- Prior art keywords
- data
- signal
- ghost
- data frame
- reference signal
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- H04N5/211—Ghost signal cancellation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Noise Elimination (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
La présente invention concerne un signal de télévision numérique à en-tête de trame à plusieurs segments de données (figures 3A-3D), dont une première et une seconde référence pour annulation des images fantômes (41 et 42) affectées d'un retard différentiel de la durée de deux lignes de balayage horizontal NTSC. L'invention concerne également un récepteur pour signaux de télévision numérique de ce type et qui comporte un égaliseur adaptatif (11) pour code symbole en bande de base dont les poids noyaux sont calculés par un calculateur (26) à partir de la réponse de l'égaliseur après filtrage en peigne. Le filtre en peigne (30) combine la réponse de l'égaliseur affectée d'un retard différentiel égal à la durée des deux lignes de balayage horizontal NTSC de façon à supprimer les artefacts d'interférence de co-canal NTSC au niveau de la réponse de l'égaliseur avec filtrage en peigne qui est fournie au calculateur (26). Il est ainsi possible d'atténuer l'incidence indésirable sur l'égalisation de tels artéfacts et de réduire les interférences entre symboles.
Applications Claiming Priority (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8506498P | 1998-05-12 | 1998-05-12 | |
US60/085,064 | 1998-05-12 | ||
US8988298P | 1998-06-19 | 1998-06-19 | |
US60/089,882 | 1998-06-19 | ||
US10347098P | 1998-10-08 | 1998-10-08 | |
US60/103,470 | 1998-10-08 | ||
US12063899P | 1999-02-18 | 1999-02-18 | |
US60/120,638 | 1999-02-18 | ||
PCT/US1999/010290 WO1999059331A1 (fr) | 1998-05-12 | 1999-05-11 | Signal de television numerique avec composantes d'annulation des images fantomes dans des en-tete de trame a segments multiples et dispositif de reception pour ce signal |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2331831A1 CA2331831A1 (fr) | 1999-11-18 |
CA2331831C true CA2331831C (fr) | 2003-10-28 |
Family
ID=27491934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002331831A Expired - Fee Related CA2331831C (fr) | 1998-05-12 | 1999-05-11 | Signal de television numerique avec composantes d'annulation des images fantomes dans des en-tete de trame a segments multiples et dispositif de reception pour ce signal |
Country Status (4)
Country | Link |
---|---|
KR (1) | KR100392681B1 (fr) |
AU (1) | AU4074399A (fr) |
CA (1) | CA2331831C (fr) |
WO (1) | WO1999059331A1 (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6806915B2 (en) * | 2001-05-03 | 2004-10-19 | Koninklijke Philips Electronics N.V. | Method and apparatus for echo cancellation in digital communications using an echo cancellation reference signal |
KR100407976B1 (ko) * | 2002-02-28 | 2003-12-01 | 엘지전자 주식회사 | 디지털 tv 수신기 |
AU2005318933B2 (en) | 2004-12-21 | 2011-04-14 | Emue Holdings Pty Ltd | Authentication device and/or method |
KR101253186B1 (ko) * | 2007-03-26 | 2013-04-10 | 엘지전자 주식회사 | 디지털 방송 시스템 및 데이터 처리 방법 |
KR101221914B1 (ko) | 2007-04-06 | 2013-01-15 | 엘지전자 주식회사 | 디지털 방송 신호 송신 장치 및 방법 |
KR101276851B1 (ko) | 2007-04-06 | 2013-06-18 | 엘지전자 주식회사 | 디지털 방송 신호 송신 장치 및 방법 |
WO2009028850A1 (fr) | 2007-08-24 | 2009-03-05 | Lg Electronics Inc. | Récepteur de radiodiffusion numérique et son procédé de contrôle |
WO2009054672A2 (fr) | 2007-10-22 | 2009-04-30 | Lg Electronics Inc. | Système de radiodiffusion numérique et procédé de traitement de données dans un système de radiodiffusion numérique |
KR20090040861A (ko) * | 2007-10-22 | 2009-04-27 | 엘지전자 주식회사 | 디지털 방송 시스템 및 데이터 처리 방법 |
KR100917213B1 (ko) | 2009-01-29 | 2009-09-15 | 엘지전자 주식회사 | 수신 시스템 및 데이터 처리 방법 |
KR100917214B1 (ko) * | 2009-01-29 | 2009-09-15 | 엘지전자 주식회사 | 수신 시스템 및 데이터 처리 방법 |
KR100930899B1 (ko) * | 2009-01-29 | 2009-12-10 | 엘지전자 주식회사 | 수신 시스템 및 데이터 처리 방법 |
CN108736155A (zh) * | 2017-04-17 | 2018-11-02 | 东莞百电子有限公司 | 一种新型高抑制杂波s频段高频头 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5598220A (en) * | 1991-07-18 | 1997-01-28 | Zenith Electronics Corporation | Digital signal with multilevel symbols and sync recognition |
TW231393B (fr) * | 1992-12-02 | 1994-10-01 | Samsung Electronics Co Ltd | |
US5532755A (en) * | 1994-01-05 | 1996-07-02 | Samsung Electronics Co., Ltd. | Apparatus for suppressing ghosts in signals modulating a carrier in quadrature phasing with a video carrier |
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 |
KR0139157B1 (ko) * | 1994-09-07 | 1998-05-15 | 김광호 | 정준표시된 필터계수를 이용하는 고스트 제거장치 |
US5594496A (en) * | 1995-06-07 | 1997-01-14 | Zenith Electronics Corporation | Detection of co-channel interference in digital television signals |
US5623319A (en) * | 1995-10-05 | 1997-04-22 | Philips Electronics North American Corp. | Ghost cancellation reference signal detection and synchronization circuit |
US5748226A (en) * | 1996-11-12 | 1998-05-05 | Samsung Electronics Co., Ltd. | Digital television receiver with adaptive filter circuitry for suppressing NTSC co-channel interference |
-
1999
- 1999-05-11 AU AU40743/99A patent/AU4074399A/en not_active Abandoned
- 1999-05-11 WO PCT/US1999/010290 patent/WO1999059331A1/fr active IP Right Grant
- 1999-05-11 KR KR10-2000-7012591A patent/KR100392681B1/ko not_active IP Right Cessation
- 1999-05-11 CA CA002331831A patent/CA2331831C/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO1999059331A1 (fr) | 1999-11-18 |
CA2331831A1 (fr) | 1999-11-18 |
KR20010043503A (ko) | 2001-05-25 |
AU4074399A (en) | 1999-11-29 |
KR100392681B1 (ko) | 2003-07-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20170511 |