FR2361690A1 - Systeme de commande de vitesse de platines tournantes ou analogues - Google Patents

Systeme de commande de vitesse de platines tournantes ou analogues

Info

Publication number
FR2361690A1
FR2361690A1 FR7724403A FR7724403A FR2361690A1 FR 2361690 A1 FR2361690 A1 FR 2361690A1 FR 7724403 A FR7724403 A FR 7724403A FR 7724403 A FR7724403 A FR 7724403A FR 2361690 A1 FR2361690 A1 FR 2361690A1
Authority
FR
France
Prior art keywords
turntable
control system
speed control
winding
similar plates
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
FR7724403A
Other languages
English (en)
Other versions
FR2361690B1 (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
Application filed by RCA Corp filed Critical RCA Corp
Publication of FR2361690A1 publication Critical patent/FR2361690A1/fr
Application granted granted Critical
Publication of FR2361690B1 publication Critical patent/FR2361690B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/28—Speed controlling, regulating, or indicating

Landscapes

  • Control Of Electric Motors In General (AREA)
  • Rotational Drive Of Disk (AREA)
  • Control Of Ac Motors In General (AREA)
  • Winding Of Webs (AREA)

Abstract

L'invention se rapporte à un système de commande de vitesse d'une platine tourne-disque 12. Selon l'invention, un condensateur 61 est associé à l'enroulement 44, qui crée un champ magnétique alternatif dans l'entrefer 42, pour constituer une charge présentant une résonance à la fréquence du courant d'excitation de l'enroulement 44; un moyen 52, 54 pour engendrer des créneaux récurrents à la fréquence du courant d'excitation de l'enroulement; et un moyen 58 pour appliquer ces créneaux à ladite charge résonante. L'invention s'applique notamment aux systèmes de vidéodisques.
FR7724403A 1976-08-09 1977-08-08 Systeme de commande de vitesse de platines tournantes ou analogues Granted FR2361690A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33121/76A GB1580883A (en) 1976-08-09 1976-08-09 Speed control system for a turntable

Publications (2)

Publication Number Publication Date
FR2361690A1 true FR2361690A1 (fr) 1978-03-10
FR2361690B1 FR2361690B1 (fr) 1982-05-28

Family

ID=10348838

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7724403A Granted FR2361690A1 (fr) 1976-08-09 1977-08-08 Systeme de commande de vitesse de platines tournantes ou analogues

Country Status (8)

Country Link
US (1) US4100465A (fr)
JP (1) JPS5320901A (fr)
AT (1) AT351801B (fr)
DE (1) DE2735849A1 (fr)
FR (1) FR2361690A1 (fr)
GB (1) GB1580883A (fr)
IT (1) IT1085650B (fr)
NL (1) NL7708742A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458129A1 (fr) * 1979-05-29 1980-12-26 Rca Corp Systeme d'entrainement de la platine d'un tourne-videodisque

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0768641B2 (ja) * 1991-07-24 1995-07-26 山喜株式会社 防縮性襟羽根の加工方法と加工器具
SE9200956D0 (sv) * 1992-03-27 1992-03-27 Peter Forsell Anordning foer drivning av skivspelare med svaenghjul enligt luftlagringsprincipen med hoeg rotationshastighet samt massa (gyro)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2178277A5 (fr) * 1971-03-11 1973-11-09 Kohlhagen Walter
GB1502594A (en) * 1971-01-20 1978-03-01 Dornier Ag Electric drive unit for high-speed appliances for example gas ultra-centrifuges

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2999186A (en) * 1953-04-07 1961-09-05 Rca Corp Multi-beam convergence controlling systems
US3912283A (en) * 1974-09-10 1975-10-14 Rca Corp Turntable speed lock system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1502594A (en) * 1971-01-20 1978-03-01 Dornier Ag Electric drive unit for high-speed appliances for example gas ultra-centrifuges
FR2178277A5 (fr) * 1971-03-11 1973-11-09 Kohlhagen Walter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458129A1 (fr) * 1979-05-29 1980-12-26 Rca Corp Systeme d'entrainement de la platine d'un tourne-videodisque

Also Published As

Publication number Publication date
AT351801B (de) 1979-08-10
DE2735849A1 (de) 1978-02-16
IT1085650B (it) 1985-05-28
NL7708742A (nl) 1978-02-13
FR2361690B1 (fr) 1982-05-28
US4100465A (en) 1978-07-11
GB1580883A (en) 1980-12-10
JPS5320901A (en) 1978-02-25
ATA581677A (de) 1979-01-15

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Legal Events

Date Code Title Description
ST Notification of lapse