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 PDF

Info

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
Application number
CA002331831A
Other languages
English (en)
Other versions
CA2331831A1 (fr
Inventor
Allen L. Limberg
Chandrakant B. Patel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of CA2331831A1 publication Critical patent/CA2331831A1/fr
Application granted granted Critical
Publication of CA2331831C publication Critical patent/CA2331831C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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

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.
CA002331831A 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 Expired - Fee Related CA2331831C (fr)

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)

* Cited by examiner, † Cited by third party
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
KR101276851B1 (ko) 2007-04-06 2013-06-18 엘지전자 주식회사 디지털 방송 신호 송신 장치 및 방법
KR101221914B1 (ko) 2007-04-06 2013-01-15 엘지전자 주식회사 디지털 방송 신호 송신 장치 및 방법
KR101556134B1 (ko) 2007-08-24 2015-09-30 엘지전자 주식회사 디지털 방송 송신기 및 그 제어 방법
KR20090040861A (ko) * 2007-10-22 2009-04-27 엘지전자 주식회사 디지털 방송 시스템 및 데이터 처리 방법
US8116381B2 (en) 2007-10-22 2012-02-14 Lg Electronics Inc. Digital broadcasting system and data processing method in digital broadcasting system
KR100917213B1 (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
KR100917214B1 (ko) * 2009-01-29 2009-09-15 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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
WO1999059331A1 (fr) 1999-11-18
CA2331831A1 (fr) 1999-11-18
KR20010043503A (ko) 2001-05-25
KR100392681B1 (ko) 2003-07-28
AU4074399A (en) 1999-11-29

Similar Documents

Publication Publication Date Title
US7038732B1 (en) DTV signal with GCR components in plural-data-segment frame headers and receiver apparatus for such signal
US6535553B1 (en) Passband equalizers with filter coefficients calculated from modulated carrier signals
US6313885B1 (en) DTV receiver with baseband equalization filters for QAM signal and for VSB signal which employ common elements
US6480236B1 (en) Envelope detection of PN sequences accompanying VSB signal to control operation of QAM/VSB DTV receiver
US6124898A (en) Digital television receiver with equalization performed on digital intermediate-frequency signals
US5748226A (en) Digital television receiver with adaptive filter circuitry for suppressing NTSC co-channel interference
CA2331831C (fr) 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
US5572249A (en) Method and apparatus for optimal NTSC rejection filtering and transmitter and receiver comprising same
JP2529821B2 (ja) ビデオ搬送波と直交位相関係にある搬送波を変調する信号に於けるゴ―ストを抑圧する装置
US6057877A (en) NTSC interference detectors using pairs of comb filters with zero-frequency responses, as for DTV receivers
US5801759A (en) Digital TV receiver circuitry for detecting and suppressing NTSC co-channel interference
US5835131A (en) Digital television receiver with adaptive filter circuitry for suppressing NTSC co-channel interference
US5995135A (en) Digital television receiver with adaptive filter circuitry for suppressing NTSC Co-channel interference
CA2247555C (fr) Detecteurs de brouillage ntsc utilisant des filtres en peigne qui suppriment la porteuse pilote dtv afin d'extraire les artefacts ntsc
US6480233B1 (en) NTSC co-channel interference detectors responsive to received Q-channel signals in digital TV signal receivers
US6201564B1 (en) Method of operating the channel equalizer in a receiver for DTV signals subject to co-channel NTSC interference
US6081301A (en) DTV circuitry for measuring multipath distortion based on ghosting of data segment synchronizing signals
US6400393B1 (en) DTV receiver with filter in I-F circuitry to suppress FM sound carrier of NTSC Co-channel interfering signal
US6188441B1 (en) Detection of PN sequences accompanying VSB signal to control operating mode of QAM/VSB DTV signal receiver
US6496230B1 (en) Digital TV signal receiver with direct conversion from UHF I-F to Low-Band I-F before digital demodulation
JP2000023055A (ja) Ｎｔｓｃ同一チャネル干渉を抑制するための適応形フィルタ回路を有するディジタルｔｖ受信機
CA2267679C (fr) Detecteurs d'interference ntsc dans un meme canal reagissant a des signaux recus du canal q dans des recepteurs de signaux de tv numerique
CA2241590C (fr) Circuit de recepteur de television numerique pour detecter et supprimer le brouillage dans le meme canal ntsc
KR100260422B1 (ko) 디지털 텔레비젼신호 수신기
CA2241067C (fr) Televiseur numerique dote d'une circuiterie de filtre adaptee pour la suppression d'interference dans la meme voie ntsc

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20170511