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JPS5755567A - Tracking controller - Google Patents

Tracking controller

Info

Publication number
JPS5755567A
JPS5755567A JP13081380A JP13081380A JPS5755567A JP S5755567 A JPS5755567 A JP S5755567A JP 13081380 A JP13081380 A JP 13081380A JP 13081380 A JP13081380 A JP 13081380A JP S5755567 A JPS5755567 A JP S5755567A
Authority
JP
Japan
Prior art keywords
motor
signal
feed
disk
supplied
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
JP13081380A
Other languages
Japanese (ja)
Other versions
JPS636939B2 (en
Inventor
Ryoichi Imanaka
Seizo Tsuji
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
Priority to JP13081380A priority Critical patent/JPS5755567A/en
Publication of JPS5755567A publication Critical patent/JPS5755567A/en
Publication of JPS636939B2 publication Critical patent/JPS636939B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)

Abstract

PURPOSE:To eliminate the effect of disturbance which is incidentally occurred on the surface of a disk, by adding the low frequency component of a tracking servo motor, a signal proportional to the number of revolutions of disk, and the speed signal of a feed motor, to a feed servo motor. CONSTITUTION:The information supplied from a disk 1 is converted into a signal by a signal detector 7 and supplied to an adder 18 via DC amplifier 11 and a low pass filter 14. While the revolution speed signal of a spindle motor 2 produced by a revolution speed detector 19 and a speed detector 17 of the motor 2 plus a feed motor speed signal of a feed control motor 10 produced by a speed detector 16 are supplied to the adder 18. The output of the adder 18 is supplied to a drive amplifier 15 to control the motor 10. Thus a stable tracking feed controller which is not affected by the disturbance occurred incidentally on the surface of a disk is obtained.
JP13081380A 1980-09-22 1980-09-22 Tracking controller Granted JPS5755567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13081380A JPS5755567A (en) 1980-09-22 1980-09-22 Tracking controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13081380A JPS5755567A (en) 1980-09-22 1980-09-22 Tracking controller

Publications (2)

Publication Number Publication Date
JPS5755567A true JPS5755567A (en) 1982-04-02
JPS636939B2 JPS636939B2 (en) 1988-02-13

Family

ID=15043303

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13081380A Granted JPS5755567A (en) 1980-09-22 1980-09-22 Tracking controller

Country Status (1)

Country Link
JP (1) JPS5755567A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57103168A (en) * 1980-12-18 1982-06-26 Pioneer Video Corp Information recorder
JPS62218889A (en) * 1986-03-20 1987-09-26 日本精工株式会社 Static pressure gas bearing spindle with vacuum suction mechanism
JPH04181571A (en) * 1990-11-15 1992-06-29 Sanyo Electric Co Ltd Pick-up drive device
US5974012A (en) * 1996-08-20 1999-10-26 Sony Corporation Recording/reproducing apparatus and recording medium rotation control method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50124604A (en) * 1974-12-06 1975-09-30
JPS53135306A (en) * 1977-04-28 1978-11-25 Sony Corp Linearly moving type tone arm device
JPS54119216A (en) * 1978-03-08 1979-09-17 Victor Co Of Japan Ltd Information signal recorder-reproducer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50124604A (en) * 1974-12-06 1975-09-30
JPS53135306A (en) * 1977-04-28 1978-11-25 Sony Corp Linearly moving type tone arm device
JPS54119216A (en) * 1978-03-08 1979-09-17 Victor Co Of Japan Ltd Information signal recorder-reproducer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57103168A (en) * 1980-12-18 1982-06-26 Pioneer Video Corp Information recorder
JPS62218889A (en) * 1986-03-20 1987-09-26 日本精工株式会社 Static pressure gas bearing spindle with vacuum suction mechanism
JPH0582907B2 (en) * 1986-03-20 1993-11-22 Nippon Seiko Kk
JPH04181571A (en) * 1990-11-15 1992-06-29 Sanyo Electric Co Ltd Pick-up drive device
US5974012A (en) * 1996-08-20 1999-10-26 Sony Corporation Recording/reproducing apparatus and recording medium rotation control method

Also Published As

Publication number Publication date
JPS636939B2 (en) 1988-02-13

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