FR2384406A1 - Systeme de compensation de signal video - Google Patents

Systeme de compensation de signal video

Info

Publication number
FR2384406A1
FR2384406A1 FR7807449A FR7807449A FR2384406A1 FR 2384406 A1 FR2384406 A1 FR 2384406A1 FR 7807449 A FR7807449 A FR 7807449A FR 7807449 A FR7807449 A FR 7807449A FR 2384406 A1 FR2384406 A1 FR 2384406A1
Authority
FR
France
Prior art keywords
signal
chrominance
chrominance signal
comb filter
luminance
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.)
Granted
Application number
FR7807449A
Other languages
English (en)
Other versions
FR2384406B1 (fr
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of FR2384406A1 publication Critical patent/FR2384406A1/fr
Application granted granted Critical
Publication of FR2384406B1 publication Critical patent/FR2384406B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
    • H04N9/78—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/87—Regeneration of colour television signals
    • H04N9/88—Signal drop-out compensation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

Système de compensateur de signal vidéo dans lequel le signal de luminance et le signal de chrominance sont séparés l'un de l'autre par un filtre en peigne, les signaux de luminance et de chrominance étant combinés dans un rapport d'imbrication de fréquences. Des parties défectueuses du signal de luminance et du signal de chrominance sont remplacées par un signal dont la fréquence est égale à un multiple entier d'une fréquence correspondant à une période de balayage horizontal. La sortie de la ligne à retard d'une période de balayage horizontal, qui constitue le filtre en peigne pour extraire le signal de chrominance, n'est appliquée à une entrée du filtre en peigne que pendant la période de défaut du signal, la phase du signal de chrominance étant inversée afin de séparer le signal de chrominance et de compenser la partie défectueuse u signal de chrominance.
FR7807449A 1977-03-16 1978-03-15 Systeme de compensation de signal video Expired FR2384406B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2943577A JPS53114612A (en) 1977-03-16 1977-03-16 Compensating unit for color video signal defect

Publications (2)

Publication Number Publication Date
FR2384406A1 true FR2384406A1 (fr) 1978-10-13
FR2384406B1 FR2384406B1 (fr) 1985-06-14

Family

ID=12276048

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7807449A Expired FR2384406B1 (fr) 1977-03-16 1978-03-15 Systeme de compensation de signal video

Country Status (6)

Country Link
US (1) US4218696A (fr)
JP (1) JPS53114612A (fr)
DE (1) DE2811266C2 (fr)
FR (1) FR2384406B1 (fr)
GB (1) GB1594084A (fr)
NL (1) NL7802701A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493075A1 (fr) * 1980-10-27 1982-04-30 Sony Corp Procede et appareil de traitement de signaux numeriques, notamment de signaux numeriques d'image

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441090A (en) * 1979-12-19 1984-04-03 Rca Corporation Crosstalk filtering arrangement with variable frequency filtering to remove effects of FM carrier
JPS5779785A (en) * 1980-11-05 1982-05-19 Victor Co Of Japan Ltd Dropout compensation circuit
JPS5836087A (ja) * 1981-08-27 1983-03-02 Matsushita Electric Ind Co Ltd ドロツプアウト補償装置
US4541018A (en) * 1981-11-06 1985-09-10 Victor Company Of Japan, Ltd. Dropout compensation and chrominance subcarrier frequency conversion circuit in a video signal reproducing apparatus
JPS5997294A (ja) * 1982-11-27 1984-06-05 Toshiba Corp 映像信号記録再生装置
JPS59104314U (ja) * 1982-12-25 1984-07-13 パイオニア株式会社 ドロップアウト補償装置
JPS59171285A (ja) * 1983-03-17 1984-09-27 Victor Co Of Japan Ltd 映像信号のドロツプアウト補償回路
JPH04245063A (ja) * 1991-01-31 1992-09-01 Sony Corp 複製防止用の信号合成回路並びに検出回路
KR0166745B1 (ko) * 1995-07-10 1999-03-20 김광호 누출성분을 제거하는 색신호 처리장치
KR100809681B1 (ko) * 2005-01-11 2008-03-07 삼성전자주식회사 컬러 아티팩트를 개선하는 디지털 영상 신호 처리 장치 및방법

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3872497A (en) * 1973-04-13 1975-03-18 Rca Corp Signal translating apparatus for composite signal subject to jitter
NL7309910A (nl) * 1973-07-17 1975-01-21 Philips Nv Inrichting voor het weergeven van een op een registratiedrager opgetekend kleurentelevisie- signaal.
AR207776A1 (es) * 1974-06-06 1976-10-29 Rca Corp Disposicion para reproducir una grabacion de imagenes de color sucesivas
GB1524356A (en) * 1974-11-18 1978-09-13 Rca Corp Corporation sync separator
GB1536851A (en) * 1975-03-10 1978-12-20 Rca Corp Video carrier wave defect detection and compensation
US3969757A (en) * 1975-04-21 1976-07-13 Rca Corporation Color image signal processing circuits
JPS523337A (en) * 1975-06-25 1977-01-11 Sharp Corp Video signal regeneration circuit
US4021852A (en) * 1975-08-21 1977-05-03 Rca Corporation Signal defect compensation
US3996610A (en) * 1975-12-29 1976-12-07 Rca Corporation Comb filter apparatus for video playback systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493075A1 (fr) * 1980-10-27 1982-04-30 Sony Corp Procede et appareil de traitement de signaux numeriques, notamment de signaux numeriques d'image

Also Published As

Publication number Publication date
DE2811266A1 (de) 1978-09-21
FR2384406B1 (fr) 1985-06-14
JPS53114612A (en) 1978-10-06
GB1594084A (en) 1981-07-30
US4218696A (en) 1980-08-19
DE2811266C2 (de) 1982-09-09
NL7802701A (nl) 1978-09-19

Similar Documents

Publication Publication Date Title
FR2384406A1 (fr) Systeme de compensation de signal video
GB1436757A (en) Drop out compensation system
FR2398423A1 (fr) Circuit d'annulation d'ondes fantomes
FR2364582A1 (fr) Camera de television en technique etat solide
GB2069287B (en) Decoding pal television signals
AU552868B2 (en) Digital colour camera
FR2385260A1 (fr) Dispositif de filtrage d'un signal limite en amplitude
FR2433875A1 (fr) Camera de television en couleur en technique etat solide
FR2418595A1 (fr) Dispositif de formation de signaux pour systeme de television couleur
FR2404275A1 (fr) Appareil d'enregistrement et de reproduction magnetiques
KR910005704A (ko) 신호분리장치
KR900702736A (ko) 비디오 입력 신호의 인트라-프레임 처리장치
FR2361791A1 (fr) Dispositif de transcodage
GB1280733A (en) Colour television circuit arrangement
ES8206946A1 (es) Una disposicion de circuito para separar las componentes de una senal pal de television en color
JPS579187A (en) Dropout compensating device
JPS57140092A (en) Speed error detecting signal system
JPS5738087A (en) Separation circuit for carrier chrominance signal
SU1095454A1 (ru) Устройство совмещени изображений телевизионной стереопары
JPS5648761A (en) Vertical synchronism detecting circuit
FR2394205A1 (fr) Modulateur
JPS5755680A (en) Television receiver
ATE90823T1 (de) Schaltungsanordnung zum entzerren von in analoger form empfangener digitalsignale.
JPS5452417A (en) Solid pickup unit
JPS5473612A (en) Compensation circuit of signal-less segment

Legal Events

Date Code Title Description
ST Notification of lapse