FR2404275A1 - Appareil d'enregistrement et de reproduction magnetiques - Google Patents

Appareil d'enregistrement et de reproduction magnetiques

Info

Publication number
FR2404275A1
FR2404275A1 FR7826939A FR7826939A FR2404275A1 FR 2404275 A1 FR2404275 A1 FR 2404275A1 FR 7826939 A FR7826939 A FR 7826939A FR 7826939 A FR7826939 A FR 7826939A FR 2404275 A1 FR2404275 A1 FR 2404275A1
Authority
FR
France
Prior art keywords
frequency
magnetic recording
reproduction device
chrominance signal
component
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
FR7826939A
Other languages
English (en)
Other versions
FR2404275B1 (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
Priority claimed from JP52114298A external-priority patent/JPS6023555B2/ja
Priority claimed from JP52114313A external-priority patent/JPS602836B2/ja
Priority claimed from JP52157642A external-priority patent/JPS5850077B2/ja
Priority claimed from JP171678U external-priority patent/JPS5919509Y2/ja
Priority claimed from JP1951878U external-priority patent/JPS599488Y2/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of FR2404275A1 publication Critical patent/FR2404275A1/fr
Application granted granted Critical
Publication of FR2404275B1 publication Critical patent/FR2404275B1/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
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/86—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded sequentially and simultaneously, e.g. corresponding to SECAM-system
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0007—Circuits or methods for reducing noise, for correction of distortion, or for changing density of recorded information

Landscapes

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

Abstract

Appareil pour l'enregistrement et la reproduction d'un signal de télévision couleur du système SECAM. La conversion de fréquence de la composante signal de chrominance à la fréquence prédéterminée dans la bande inférieure est effectuée au moins en partie par division de fréquence par des moyens qui abaissent la fréquence de cette composante signal de chrominance, et la conversion de fréquence de la composante signal de chrominance reproduite pour la ramener à la fréquence originelle est effectuée au moins en partie par des moyens multiplicateurs de fréquence.
FR7826939A 1977-09-21 1978-09-20 Appareil d'enregistrement et de reproduction magnetiques Expired FR2404275B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP52114298A JPS6023555B2 (ja) 1977-09-21 1977-09-21 Ｓｅｃａｍ方式カラ−テレビジヨン信号の記録方式
JP52114313A JPS602836B2 (ja) 1977-09-22 1977-09-22 Ｓｅｃａｍ方式カラーテレビジヨン信号の記録方式
JP52157642A JPS5850077B2 (ja) 1977-12-27 1977-12-27 Ｓｅｃａｍ方式映像信号の記録再生装置
JP171678U JPS5919509Y2 (ja) 1978-01-10 1978-01-10 Ｓｅｃａｍ方式映像信号の記録再生装置
JP1951878U JPS599488Y2 (ja) 1978-02-15 1978-02-15 Ｓｅｃａｍ方式カラ−テレビジョン信号の記録装置

Publications (2)

Publication Number Publication Date
FR2404275A1 true FR2404275A1 (fr) 1979-04-20
FR2404275B1 FR2404275B1 (fr) 1986-08-14

Family

ID=27518154

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7826939A Expired FR2404275B1 (fr) 1977-09-21 1978-09-20 Appareil d'enregistrement et de reproduction magnetiques

Country Status (3)

Country Link
FR (1) FR2404275B1 (fr)
GB (1) GB2005513B (fr)
NL (1) NL7809567A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2419632A1 (fr) * 1978-03-08 1979-10-05 Sanyo Electric Co Procede et dispositif d'enregistrement de signaux de chrominance " secam "
FR2507047A1 (fr) * 1981-06-01 1982-12-03 Victor Company Of Japan Dispositif d'enregistrement de signaux video couleur du systeme secam et dispositif d'enregistrement et de reproduction de ces signaux
FR2507421A1 (fr) * 1981-06-03 1982-12-10 Victor Company Of Japan Appareil d'enregistrement de signaux video couleur selon le systeme secam et appareil d'enregistrement et de reproduction

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56132085A (en) * 1980-03-21 1981-10-16 Victor Co Of Japan Ltd Recording system and recording plus reproducing system for color video signal
JPS56134303A (en) * 1980-03-25 1981-10-21 Matsushita Electric Ind Co Ltd Signal recording system
JPS57201397A (en) * 1981-06-03 1982-12-09 Victor Co Of Japan Ltd Secam color video signal recording system and reproducing system
JPS5923993A (ja) * 1982-07-30 1984-02-07 Victor Co Of Japan Ltd 映像信号の信号対雑音比改善回路
JPS5955692A (ja) * 1982-09-25 1984-03-30 Victor Co Of Japan Ltd カラ−映像信号記録装置及び記録再生装置
DE3507847A1 (de) * 1985-03-06 1986-09-11 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth Anordnung zur aufzeichnung und wiedergabe von secam-farbvideosignalen
JPH08223601A (ja) * 1995-02-09 1996-08-30 Mitsubishi Electric Corp Ｓｅｃａｍ色信号再生処理装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2419632A1 (fr) * 1978-03-08 1979-10-05 Sanyo Electric Co Procede et dispositif d'enregistrement de signaux de chrominance " secam "
FR2507047A1 (fr) * 1981-06-01 1982-12-03 Victor Company Of Japan Dispositif d'enregistrement de signaux video couleur du systeme secam et dispositif d'enregistrement et de reproduction de ces signaux
FR2507421A1 (fr) * 1981-06-03 1982-12-10 Victor Company Of Japan Appareil d'enregistrement de signaux video couleur selon le systeme secam et appareil d'enregistrement et de reproduction

Also Published As

Publication number Publication date
GB2005513B (en) 1982-03-31
DE2840969C2 (de) 1982-06-16
DE2840969A1 (de) 1979-03-29
NL7809567A (nl) 1979-03-23
GB2005513A (en) 1979-04-19
FR2404275B1 (fr) 1986-08-14

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Legal Events

Date Code Title Description
ST Notification of lapse
ST Notification of lapse