CA2241590C - Circuit de recepteur de television numerique pour detecter et supprimer le brouillage dans le meme canal ntsc - Google Patents

Circuit de recepteur de television numerique pour detecter et supprimer le brouillage dans le meme canal ntsc Download PDF

Info

Publication number
CA2241590C
CA2241590C CA002241590A CA2241590A CA2241590C CA 2241590 C CA2241590 C CA 2241590C CA 002241590 A CA002241590 A CA 002241590A CA 2241590 A CA2241590 A CA 2241590A CA 2241590 C CA2241590 C CA 2241590C
Authority
CA
Canada
Prior art keywords
decoding results
symbol decoding
television signal
estimated symbol
circuitry
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
CA002241590A
Other languages
English (en)
Other versions
CA2241590A1 (fr
Inventor
Allen Leroy Limberg
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
Priority claimed from US08/882,539 external-priority patent/US5801759A/en
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of CA2241590A1 publication Critical patent/CA2241590A1/fr
Application granted granted Critical
Publication of CA2241590C publication Critical patent/CA2241590C/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Circuits Of Receivers In General (AREA)
  • Noise Elimination (AREA)
  • Processing Of Color Television Signals (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

Les résultats du décodage de symboles obtenus au moyen de filtres en peigne pour supprimer des artefacts de brouillage dans le même canal NTSC avant le décodage des symboles sont comparés avec les résultats du décodage de symboles obtenus sans filtre à peigne également avant le décodage des symboles, afin de déterminer lesquels desdits résultats de décodage il convient de choisir comme résultats définitifs. Les résultats du décodage de symboles obtenus au moyen de filtres à peigne pour supprimer les artefacts de brouillage dans le même canal NTSC sont retenus comme résultats définitifs en présence de brouillage dans le même canal NTSC. Les signaux de télévision numérique sont détectés afin de déterminer s'il y a interaction de porteuses NTSC à 4,5 MHz, afin de confirmer la présence d'un important brouillage dans le même canal NTSC.
CA002241590A 1997-06-25 1998-06-23 Circuit de recepteur de television numerique pour detecter et supprimer le brouillage dans le meme canal ntsc Expired - Fee Related CA2241590C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/882,539 US5801759A (en) 1997-04-15 1997-06-25 Digital TV receiver circuitry for detecting and suppressing NTSC co-channel interference
US08/882,539 1997-06-25

Publications (2)

Publication Number Publication Date
CA2241590A1 CA2241590A1 (fr) 1998-12-25
CA2241590C true CA2241590C (fr) 2001-09-11

Family

ID=25380809

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002241590A Expired - Fee Related CA2241590C (fr) 1997-06-25 1998-06-23 Circuit de recepteur de television numerique pour detecter et supprimer le brouillage dans le meme canal ntsc

Country Status (3)

Country Link
JP (1) JP3330542B2 (fr)
KR (1) KR100268059B1 (fr)
CA (1) CA2241590C (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100594275B1 (ko) * 2004-05-14 2006-06-30 삼성전자주식회사 Ｎｔｓｃ 코채널 간섭 제거를 위한 채널 상태 생성 회로를구비한 디지털 텔레비전 수신기 및 그 방법
KR100721776B1 (ko) * 2005-07-20 2007-05-25 노키아 코포레이션 디지털 광대역 전송을 제공하기 위한 방법, 시스템 및네트웍 개체

Also Published As

Publication number Publication date
CA2241590A1 (fr) 1998-12-25
KR19990007352A (ko) 1999-01-25
KR100268059B1 (ko) 2000-10-16
JPH1175092A (ja) 1999-03-16
JP3330542B2 (ja) 2002-09-30

Similar Documents

Publication Publication Date Title
US5748226A (en) Digital television receiver with adaptive filter circuitry for suppressing NTSC co-channel interference
US7038732B1 (en) DTV signal with GCR components in plural-data-segment frame headers and receiver apparatus for such signal
US5534933A (en) Apparatus for processing NTSC TV signals having digital signals on quadrature-phase video carrier
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
CA2220740C (fr) Dispositif de decodage de symboles a decoupeurs de donnees et filtre adaptatif ntsc de brouillage dans le meme canal
US5835131A (en) Digital television receiver with adaptive filter circuitry for suppressing NTSC co-channel interference
US6480233B1 (en) NTSC co-channel interference detectors responsive to received Q-channel signals in digital TV signal receivers
CA2247555C (fr) Detecteurs de brouillage ntsc utilisant des filtres en peigne qui suppriment la porteuse pilote dtv afin d'extraire les artefacts ntsc
KR100246767B1 (ko) 보조 아날로그 텔레비젼 수신기로부터의 영상신호를 이용하여 엔.티.에스.씨 간섭을 검파하는 디지탈 텔레비젼 수신기
US6023306A (en) NTSC interference detectors using comb filters that suppress digital TV pilot carrier for NTSC extraction
KR100246800B1 (ko) 인터캐리어 신호를 이용하여 엔.티.에스.씨 간섭을 검파하는 디지탈 텔레비젼 수신기
US5798803A (en) NTSC interference detectors using comb filters that suppress HDTV pilot carrier for NTSC extraction
US6201564B1 (en) Method of operating the channel equalizer in a receiver for DTV signals subject to co-channel NTSC interference
WO1999059331A1 (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
US6400393B1 (en) DTV receiver with filter in I-F circuitry to suppress FM sound carrier of NTSC Co-channel interfering signal
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
AU702333B1 (en) Digital TV receiver circuitry for detecting and suppressing NTSC co-channel interference
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
CA2241067C (fr) Televiseur numerique dote d'une circuiterie de filtre adaptee pour la suppression d'interference dans la meme voie ntsc
AU702137B1 (en) Digital television receiver with adaptive filter circuitry for suppressing NTSC co-channel interference
KR100260422B1 (ko) 디지털 텔레비젼신호 수신기
CN1115043C (zh) 用于检测和抑制ntsc共道干扰的数字电视接收机电路
KR100268059B1 (ko) 디지털 텔레비젼 수신기에 있어서의 엔티에스씨 간섭신호검출/차단 장치 및 방법
KR100288290B1 (ko) 엔티에스씨동일채널간섭을억제하기위한적응형필터회로를갖는디지털티브이수신기및그의심볼디코딩방법

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 20090623