GB2109150B - Method for tracking signals on disc records - Google Patents

Method for tracking signals on disc records

Info

Publication number
GB2109150B
GB2109150B GB08230620A GB8230620A GB2109150B GB 2109150 B GB2109150 B GB 2109150B GB 08230620 A GB08230620 A GB 08230620A GB 8230620 A GB8230620 A GB 8230620A GB 2109150 B GB2109150 B GB 2109150B
Authority
GB
United Kingdom
Prior art keywords
tracking signals
disc records
records
disc
tracking
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
GB08230620A
Other versions
GB2109150A (en
Inventor
Kunio Goto
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.)
Victor Company of Japan Ltd
NIPPON VICTOR KK
Original Assignee
Victor Company of Japan Ltd
NIPPON VICTOR KK
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 to JP17174781A priority Critical patent/JPS5873064A/en
Priority to JP17174881A priority patent/JPS5873065A/en
Application filed by Victor Company of Japan Ltd, NIPPON VICTOR KK filed Critical Victor Company of Japan Ltd
Publication of GB2109150A publication Critical patent/GB2109150A/en
Application granted granted Critical
Publication of GB2109150B publication Critical patent/GB2109150B/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00Head arrangements not specific to the method of recording or reproducing
    • G11B21/02Driving or moving of heads
    • G11B21/10Track finding or aligning by moving the head Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
    • G11B21/106Track finding or aligning by moving the head Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following on disks
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition 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
    • G11B7/0901Disposition 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
GB08230620A 1981-10-27 1982-10-27 Method for tracking signals on disc records Expired GB2109150B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP17174781A JPS5873064A (en) 1981-10-27 1981-10-27 Tracking control system
JP17174881A JPS5873065A (en) 1981-10-27 1981-10-27 Tracking control system

Publications (2)

Publication Number Publication Date
GB2109150A GB2109150A (en) 1983-05-25
GB2109150B true GB2109150B (en) 1986-08-06

Family

ID=26494360

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08230620A Expired GB2109150B (en) 1981-10-27 1982-10-27 Method for tracking signals on disc records

Country Status (2)

Country Link
DE (1) DE3239857C2 (en)
GB (1) GB2109150B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2581784B1 (en) * 1985-05-10 1994-03-25 Thomson Alcatel Gigadisc Pregraved information medium and its optical reading device
EP0325329B1 (en) * 1988-01-22 1993-12-01 Philips Electronics N.V. Method of and apparatus for successively recording EFM-modulated signals
NL8800151A (en) * 1988-01-22 1989-08-16 Philips Nv Method and apparatus for recording an information signal
DE69115732T2 (en) * 1990-02-22 1996-05-30 Victor Company Of Japan Device for determining the inclination of an optical disk

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4331976A (en) * 1976-04-08 1982-05-25 Victor Company Of Japan, Ltd. High density recording system using side-by-side information and servo tracks
DE3009548A1 (en) * 1980-03-13 1981-09-24 Ibm Deutschland Track control for magnetic heads and method for compensating comparative storage sizes

Also Published As

Publication number Publication date
DE3239857C2 (en) 1986-12-18
GB2109150A (en) 1983-05-25
DE3239857A1 (en) 1983-05-19

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Legal Events

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