NL183791C - DEVICE FOR DRIVING A RECORD PLAYER. - Google Patents

DEVICE FOR DRIVING A RECORD PLAYER.

Info

Publication number
NL183791C
NL183791C NLAANVRAGE7906866,A NL7906866A NL183791C NL 183791 C NL183791 C NL 183791C NL 7906866 A NL7906866 A NL 7906866A NL 183791 C NL183791 C NL 183791C
Authority
NL
Netherlands
Prior art keywords
driving
record player
player
record
Prior art date
Application number
NLAANVRAGE7906866,A
Other languages
Dutch (nl)
Other versions
NL7906866A (en
NL183791B (en
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of NL7906866A publication Critical patent/NL7906866A/en
Publication of NL183791B publication Critical patent/NL183791B/en
Application granted granted Critical
Publication of NL183791C publication Critical patent/NL183791C/en

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
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking
    • 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
    • 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
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0932—Details of sprung supports
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Automatic Focus Adjustment (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
NLAANVRAGE7906866,A 1978-09-19 1979-09-14 DEVICE FOR DRIVING A RECORD PLAYER. NL183791C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11608878A JPS5542369A (en) 1978-09-19 1978-09-19 Pickup controller
JP11608878 1978-09-19

Publications (3)

Publication Number Publication Date
NL7906866A NL7906866A (en) 1980-03-21
NL183791B NL183791B (en) 1988-08-16
NL183791C true NL183791C (en) 1989-01-16

Family

ID=14678405

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7906866,A NL183791C (en) 1978-09-19 1979-09-14 DEVICE FOR DRIVING A RECORD PLAYER.

Country Status (3)

Country Link
JP (1) JPS5542369A (en)
FR (1) FR2437042B1 (en)
NL (1) NL183791C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469853B1 (en) * 1979-11-12 1986-09-12 Nippon Telegraph & Telephone PICK-UP FOR USE IN A DEVICE FOR PLAYING VIDEO AND / OR AUDIO INFORMATION
FR2474740A1 (en) * 1980-01-24 1981-07-31 Thomson Csf MOBILE CREW OF A VIDEODISK RECORDER PLAYER, AND VIDEO DEVICE RECORDER COMPRISING SUCH A CREW
US4592037A (en) * 1980-11-28 1986-05-27 Hitachi, Ltd. Device for displacing a pickup head in multi-axial directions
FR2522860B1 (en) * 1982-03-02 1989-07-13 Thomson Csf OPTICAL WRITE-READING HEAD OF AN OPTICAL DISC AND OPTICAL DEVICE ASSOCIATED WITH SUCH A HEAD
US4696566A (en) * 1984-02-08 1987-09-29 Sharp Kabushiki Kaisha Three-dimensional driving arrangement
NL8701526A (en) * 1987-06-30 1989-01-16 Philips Nv DEVICE FOR OPTICAL SCANNING OF A ROTATING PLATE.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946367A (en) * 1972-12-20 1976-03-23 Videonics Of Hawaii, Inc. Three dimensional electro-optical retrieval system
US3848095A (en) * 1972-12-20 1974-11-12 I O Metrics Corp Three dimensional electro-optical retrieval system
US4003059A (en) * 1974-02-07 1977-01-11 Canon Kabushiki Kaisha Optical recorder having focus controlling means
DE2661052C2 (en) * 1975-10-08 1987-07-16 Olympus Optical Co., Ltd., Tokio/Tokyo, Jp
NL176315C (en) * 1976-05-12 1985-03-18 Philips Nv OPTICAL SCANNER.
NL7608561A (en) * 1976-08-02 1978-02-06 Philips Nv OPTICAL READING UNIT FOR SCANNING A RECORD BEARING WITH A RADIATION-REFLECTING INFORMATION STRUCTURE.
NL7703232A (en) * 1977-03-25 1978-09-27 Philips Nv OPTICAL SCANNER.

Also Published As

Publication number Publication date
JPS5542369A (en) 1980-03-25
NL7906866A (en) 1980-03-21
FR2437042A1 (en) 1980-04-18
NL183791B (en) 1988-08-16
FR2437042B1 (en) 1985-10-11

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
V4 Lapsed because of reaching the maximum lifetime of a patent

Free format text: 19990914