FR2389965A1 - - Google Patents

Info

Publication number
FR2389965A1
FR2389965A1 FR7713213A FR7713213A FR2389965A1 FR 2389965 A1 FR2389965 A1 FR 2389965A1 FR 7713213 A FR7713213 A FR 7713213A FR 7713213 A FR7713213 A FR 7713213A FR 2389965 A1 FR2389965 A1 FR 2389965A1
Authority
FR
France
Prior art keywords
turntable
magnetic field
motor
hall effect
detector
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
FR7713213A
Other languages
English (en)
French (fr)
Other versions
FR2389965B1 (ja
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.)
Philips Industrielle et Commerciale SA
Original Assignee
Philips Industrielle et Commerciale SA
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 Philips Industrielle et Commerciale SA filed Critical Philips Industrielle et Commerciale SA
Priority to FR7713213A priority Critical patent/FR2389965B1/fr
Priority to DE19782817311 priority patent/DE2817311A1/de
Priority to JP1978053567U priority patent/JPS53150107U/ja
Priority to GB16956/78A priority patent/GB1589646A/en
Priority to IT22861/78A priority patent/IT1095263B/it
Priority to ES469323A priority patent/ES469323A1/es
Publication of FR2389965A1 publication Critical patent/FR2389965A1/fr
Application granted granted Critical
Publication of FR2389965B1 publication Critical patent/FR2389965B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/02—Arrangements of heads
    • G11B3/08—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
    • G11B3/085—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers using automatic means
    • G11B3/08503—Control of drive of the head
    • G11B3/08506—Control of drive of the head for pivoting pick-up arms
    • G11B3/08516—Control of drive of the head for pivoting pick-up arms using magnetic detecting means

Landscapes

  • Rotational Drive Of Disk (AREA)
  • Amplifiers (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
FR7713213A 1977-05-02 1977-05-02 Expired FR2389965B1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR7713213A FR2389965B1 (ja) 1977-05-02 1977-05-02
DE19782817311 DE2817311A1 (de) 1977-05-02 1978-04-20 Plattenspieler mit start-stopregelung durch ein magnetfeld
JP1978053567U JPS53150107U (ja) 1977-05-02 1978-04-24
GB16956/78A GB1589646A (en) 1977-05-02 1978-04-28 Record player
IT22861/78A IT1095263B (it) 1977-05-02 1978-04-28 Fonoriproduttore di dischi grammofonici con controllo di avvio arresto per mezzo di campo magnetico
ES469323A ES469323A1 (es) 1977-05-02 1978-04-29 Un tocadiscos perfeccionado

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7713213A FR2389965B1 (ja) 1977-05-02 1977-05-02

Publications (2)

Publication Number Publication Date
FR2389965A1 true FR2389965A1 (ja) 1978-12-01
FR2389965B1 FR2389965B1 (ja) 1980-08-14

Family

ID=9190198

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7713213A Expired FR2389965B1 (ja) 1977-05-02 1977-05-02

Country Status (6)

Country Link
JP (1) JPS53150107U (ja)
DE (1) DE2817311A1 (ja)
ES (1) ES469323A1 (ja)
FR (1) FR2389965B1 (ja)
GB (1) GB1589646A (ja)
IT (1) IT1095263B (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699720A1 (fr) * 1992-12-23 1994-06-24 Raymond Engineering Unité d'exploitation de disques magnétiques, notamment unité de mémoire.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699720A1 (fr) * 1992-12-23 1994-06-24 Raymond Engineering Unité d'exploitation de disques magnétiques, notamment unité de mémoire.

Also Published As

Publication number Publication date
ES469323A1 (es) 1979-01-16
FR2389965B1 (ja) 1980-08-14
DE2817311A1 (de) 1978-11-16
JPS53150107U (ja) 1978-11-27
GB1589646A (en) 1981-05-20
IT1095263B (it) 1985-08-10
IT7822861A0 (it) 1978-04-28

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Legal Events

Date Code Title Description
TP Transmission of property
CD Change of name or company name
ST Notification of lapse