GB8502586D0 - Reproducing record information - Google Patents

Reproducing record information

Info

Publication number
GB8502586D0
GB8502586D0 GB858502586A GB8502586A GB8502586D0 GB 8502586 D0 GB8502586 D0 GB 8502586D0 GB 858502586 A GB858502586 A GB 858502586A GB 8502586 A GB8502586 A GB 8502586A GB 8502586 D0 GB8502586 D0 GB 8502586D0
Authority
GB
United Kingdom
Prior art keywords
record information
reproducing record
reproducing
information
record
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
GB858502586A
Other versions
GB2156069A (en
GB2156069B (en
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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
Priority claimed from JP1429584U external-priority patent/JPS60127630U/en
Priority claimed from JP1429484U external-priority patent/JPS60127634U/en
Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Publication of GB8502586D0 publication Critical patent/GB8502586D0/en
Publication of GB2156069A publication Critical patent/GB2156069A/en
Application granted granted Critical
Publication of GB2156069B publication Critical patent/GB2156069B/en
Expired 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
    • G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0956—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
GB08502586A 1984-02-03 1985-02-01 Apparatus for reproducing recorded information Expired GB2156069B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1429584U JPS60127630U (en) 1984-02-03 1984-02-03 Recorded information reproducing device
JP1429484U JPS60127634U (en) 1984-02-03 1984-02-03 Recorded information reproducing device

Publications (3)

Publication Number Publication Date
GB8502586D0 true GB8502586D0 (en) 1985-03-06
GB2156069A GB2156069A (en) 1985-10-02
GB2156069B GB2156069B (en) 1987-05-07

Family

ID=26350217

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08502586A Expired GB2156069B (en) 1984-02-03 1985-02-01 Apparatus for reproducing recorded information

Country Status (2)

Country Link
DE (1) DE3503461A1 (en)
GB (1) GB2156069B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8500592A (en) * 1985-03-04 1986-10-01 Philips Nv ELECTRO-OPTICAL DEVICE.
JPH0619845B2 (en) * 1986-09-26 1994-03-16 ティアツク株式会社 Disk fluctuation state detection device
JP2565238B2 (en) * 1987-10-15 1996-12-18 ソニー株式会社 Optical disc player
US5065253A (en) * 1987-12-25 1991-11-12 Pioneer Electronic Corporation Disk player with disk tilt or pickup position responsive noise reduction
JP2753337B2 (en) * 1989-07-26 1998-05-20 パイオニア株式会社 Optical information reader
JPH07272300A (en) * 1994-03-31 1995-10-20 Sony Corp Skew detecting device for disk
JPH09270152A (en) * 1996-03-29 1997-10-14 Pioneer Electron Corp Optical disk
CN100383868C (en) 2002-09-06 2008-04-23 松下电器产业株式会社 Optical head

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR205243A1 (en) * 1972-05-11 1976-04-21 Philips Nv APPARATUS FOR READING A FLAT REFLECTOR RECORDING CARRIER
NL7410642A (en) * 1974-08-08 1976-02-10 Philips Nv OPTO-ELECTRONIC FOCUSING DETECTION SYSTEM.
JPS5953612B2 (en) * 1975-11-19 1984-12-26 カブシキガイシヤ フジテレビジヨン Kodenshikisai Seihouhou
NL8004969A (en) * 1980-09-02 1982-04-01 Philips Nv DEVICE FOR OPTICAL FOCUSING.
JPS59168835U (en) * 1983-04-27 1984-11-12 パイオニア株式会社 Optical recording information reading device

Also Published As

Publication number Publication date
GB2156069A (en) 1985-10-02
GB2156069B (en) 1987-05-07
DE3503461A1 (en) 1985-08-08

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee