FR2371105A1 - Compensateur electronique de defauts de signaux - Google Patents

Compensateur electronique de defauts de signaux

Info

Publication number
FR2371105A1
FR2371105A1 FR7734183A FR7734183A FR2371105A1 FR 2371105 A1 FR2371105 A1 FR 2371105A1 FR 7734183 A FR7734183 A FR 7734183A FR 7734183 A FR7734183 A FR 7734183A FR 2371105 A1 FR2371105 A1 FR 2371105A1
Authority
FR
France
Prior art keywords
signal
correction circuit
delay circuits
correct phase
out correction
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
FR7734183A
Other languages
English (en)
Other versions
FR2371105B1 (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.)
RCA Corp
Original Assignee
RCA Corp
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 GB47548/76A external-priority patent/GB1589476A/en
Application filed by RCA Corp filed Critical RCA Corp
Publication of FR2371105A1 publication Critical patent/FR2371105A1/fr
Application granted granted Critical
Publication of FR2371105B1 publication Critical patent/FR2371105B1/fr
Granted 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
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/87—Regeneration of colour television signals
    • H04N9/88—Signal drop-out compensation
    • H04N9/882—Signal drop-out compensation the signal being a composite colour television signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

L'invention concerne un compensateur électronique de compensation d'absence de signaux. Selon l'invention un tel commutateur est destiné à fournir un signal vidéo de remplacement pendant l'absence d'un signal vidéo. Ce signal de remplacement comprend une information image de lignes avant et après la ligne où intervient le défaut, et est obtenu par sommation (sommateur 40) des signaux vidéo avec des signaux vidéo retardés de deux lignes (circuits à retard 10, 20). Le commutateur comprend également des circuits de traitement 90, 100, 110 pour que la partie chrominance du signal de remplacement air une phase correcte. L'invention s'applique notamment aux récepteurs de télévision couleurs.
FR7734183A 1976-11-15 1977-11-14 Compensateur electronique de defauts de signaux Granted FR2371105A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB47548/76A GB1589476A (en) 1976-11-15 1976-11-15 Dropout compensator circuit
US05/780,333 US4122489A (en) 1976-11-15 1977-03-23 Signal defect compensator

Publications (2)

Publication Number Publication Date
FR2371105A1 true FR2371105A1 (fr) 1978-06-09
FR2371105B1 FR2371105B1 (fr) 1982-04-23

Family

ID=26266077

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7734183A Granted FR2371105A1 (fr) 1976-11-15 1977-11-14 Compensateur electronique de defauts de signaux

Country Status (6)

Country Link
JP (1) JPS6023556B2 (fr)
AU (1) AU515009B2 (fr)
CA (1) CA1083709A (fr)
DE (1) DE2751022C2 (fr)
FR (1) FR2371105A1 (fr)
NL (1) NL7712505A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458191A1 (fr) * 1979-06-01 1980-12-26 Rca Corp
FR2462076A1 (fr) * 1979-07-19 1981-02-06 Rca Corp Compensateur de la chute hors limites d'un signal video et procede de formation d'un signal de remplacement dans le cas d'une telle chute hors limites
FR2469075A1 (fr) * 1979-10-26 1981-05-08 Ampex Appareil a filtre numerique pour traiter un signal numerique, notamment de television, et procede de mise en oeuvre de cette appareil
FR2508265A1 (fr) * 1981-06-22 1982-12-24 Rca Corp Circuit de desaccentuation video

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2927710A1 (de) * 1979-07-09 1981-01-29 Philips Nv Verfahren und anordnung zur fehlerkorrektur bei faksimileuebertragung
JPS5627592A (en) * 1979-08-13 1981-03-17 Nec Corp Dropout correction unit
JPS60130278A (ja) * 1983-12-16 1985-07-11 Matsushita Electric Ind Co Ltd 輝度信号処理装置
KR890005240B1 (ko) * 1983-10-18 1989-12-18 마쯔시다덴기산교 가부시기가이샤 영상신호 처리장치
JPS60130280A (ja) * 1983-12-19 1985-07-11 Matsushita Electric Ind Co Ltd ドロツプアウト補正装置
JPS60130986A (ja) * 1983-12-20 1985-07-12 Matsushita Electric Ind Co Ltd 映像信号処理装置
JPH0681269B2 (ja) * 1984-06-30 1994-10-12 松下電器産業株式会社 映像信号処理装置
DE3543911A1 (de) * 1984-12-14 1986-06-26 Mitsubishi Denki K.K., Tokio/Tokyo Digitale verzoegerungseinheit
US4760470A (en) * 1985-09-27 1988-07-26 Ampex Corporation Multi-standard adaptive dropout compensator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3463874A (en) * 1966-05-25 1969-08-26 Minnesota Mining & Mfg Dropout compensator for ntsc color television
GB1323434A (en) * 1970-07-21 1973-07-18 Minnesota Mining & Mfg Dropout compensator for pal colour television
DE2443541A1 (de) * 1973-09-11 1975-03-20 Quantel Ltd Einrichtung zur kompensation von signalausfaellen bei der wiedergabe auf magnetband aufgezeichneter videosignale

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3463874A (en) * 1966-05-25 1969-08-26 Minnesota Mining & Mfg Dropout compensator for ntsc color television
GB1323434A (en) * 1970-07-21 1973-07-18 Minnesota Mining & Mfg Dropout compensator for pal colour television
DE2443541A1 (de) * 1973-09-11 1975-03-20 Quantel Ltd Einrichtung zur kompensation von signalausfaellen bei der wiedergabe auf magnetband aufgezeichneter videosignale

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458191A1 (fr) * 1979-06-01 1980-12-26 Rca Corp
FR2462076A1 (fr) * 1979-07-19 1981-02-06 Rca Corp Compensateur de la chute hors limites d'un signal video et procede de formation d'un signal de remplacement dans le cas d'une telle chute hors limites
FR2469075A1 (fr) * 1979-10-26 1981-05-08 Ampex Appareil a filtre numerique pour traiter un signal numerique, notamment de television, et procede de mise en oeuvre de cette appareil
FR2508265A1 (fr) * 1981-06-22 1982-12-24 Rca Corp Circuit de desaccentuation video

Also Published As

Publication number Publication date
JPS6023556B2 (ja) 1985-06-07
NL7712505A (nl) 1978-05-17
AU3048377A (en) 1979-05-17
AU515009B2 (en) 1981-03-12
DE2751022C2 (de) 1985-10-03
CA1083709A (fr) 1980-08-12
JPS5362423A (en) 1978-06-03
FR2371105B1 (fr) 1982-04-23
DE2751022A1 (de) 1978-05-24

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Legal Events

Date Code Title Description
ST Notification of lapse