GB2155627B - Tracking error signal generating apparatus for an optical information recording/playback system - Google Patents

Tracking error signal generating apparatus for an optical information recording/playback system

Info

Publication number
GB2155627B
GB2155627B GB08505045A GB8505045A GB2155627B GB 2155627 B GB2155627 B GB 2155627B GB 08505045 A GB08505045 A GB 08505045A GB 8505045 A GB8505045 A GB 8505045A GB 2155627 B GB2155627 B GB 2155627B
Authority
GB
United Kingdom
Prior art keywords
information recording
error signal
signal generating
optical information
generating apparatus
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.)
Expired
Application number
GB08505045A
Other versions
GB2155627A (en
GB8505045D0 (en
Inventor
Hidehiro Ishii
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
Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Publication of GB8505045D0 publication Critical patent/GB8505045D0/en
Publication of GB2155627A publication Critical patent/GB2155627A/en
Application granted granted Critical
Publication of GB2155627B publication Critical patent/GB2155627B/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
    • G11B7/0901—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
    • G11B7/0903—Multi-beam tracking systems
GB08505045A 1984-02-27 1985-02-27 Tracking error signal generating apparatus for an optical information recording/playback system Expired GB2155627B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59035581A JPH0652577B2 (en) 1984-02-27 1984-02-27 Tracking error signal generator

Publications (3)

Publication Number Publication Date
GB8505045D0 GB8505045D0 (en) 1985-03-27
GB2155627A GB2155627A (en) 1985-09-25
GB2155627B true GB2155627B (en) 1987-01-14

Family

ID=12445732

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08505045A Expired GB2155627B (en) 1984-02-27 1985-02-27 Tracking error signal generating apparatus for an optical information recording/playback system

Country Status (3)

Country Link
JP (1) JPH0652577B2 (en)
DE (1) DE3506961A1 (en)
GB (1) GB2155627B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62188031A (en) * 1986-02-13 1987-08-17 Csk Corp Detection system for focus matching position

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57176568A (en) * 1981-04-22 1982-10-29 Pioneer Electronic Corp Relative movement controller between pickup and recording track for information reader
JPS5819744A (en) * 1981-07-24 1983-02-04 Sony Corp Optical recorder and reproducer
JPS58220252A (en) * 1982-06-16 1983-12-21 Hitachi Ltd Detecting circuit of tracking error signal of optical pickup

Also Published As

Publication number Publication date
JPH0652577B2 (en) 1994-07-06
GB2155627A (en) 1985-09-25
DE3506961A1 (en) 1985-09-05
JPS60179946A (en) 1985-09-13
GB8505045D0 (en) 1985-03-27

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940227