JPH04176028A - Eccentric displacement absorber for disk - Google Patents

Eccentric displacement absorber for disk

Info

Publication number
JPH04176028A
JPH04176028A JP30297890A JP30297890A JPH04176028A JP H04176028 A JPH04176028 A JP H04176028A JP 30297890 A JP30297890 A JP 30297890A JP 30297890 A JP30297890 A JP 30297890A JP H04176028 A JPH04176028 A JP H04176028A
Authority
JP
Japan
Prior art keywords
disk
center
servo
quantity
recording track
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.)
Pending
Application number
JP30297890A
Inventor
Hideki Tanaka
Original Assignee
Funai Denki Kenkyusho: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
Application filed by Funai Denki Kenkyusho:Kk filed Critical Funai Denki Kenkyusho:Kk
Priority to JP30297890A priority Critical patent/JPH04176028A/en
Publication of JPH04176028A publication Critical patent/JPH04176028A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To lighten the burden of a tracking servo system by computing displacement from the center of a disk of the center of a recording track on the basis of the quantity of servo of a pick-up at the time of initialization and moving the shaft of the disk to the center of the recording track on the computed value.
CONSTITUTION: A servo-quantity detecting section 7 detects the quantity of servo of a pick-up 2 by reading one part of the recording track of a disk 1 on initialization prior to the regeneration of a disk player on the basis of a signal from a tracking servo 3. A micro-computer 8 computes displacement from the center of the disk of the center of the recording track on the basis of the quantity of servo detected, and drives a X-axis moving motor 10 and a Y-axis moving motor 11 through a driver circuit 9 on the basis of the computed value. A spindle 12 is shifted to the center of the recording track so that the quantity of servo is minimized-that is, so that eccentric displacement is absorbed. Accordingly, the burden of a tracking servo system can be lightened.
COPYRIGHT: (C)1992,JPO&Japio
JP30297890A 1990-11-07 1990-11-07 Eccentric displacement absorber for disk Pending JPH04176028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30297890A JPH04176028A (en) 1990-11-07 1990-11-07 Eccentric displacement absorber for disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30297890A JPH04176028A (en) 1990-11-07 1990-11-07 Eccentric displacement absorber for disk

Publications (1)

Publication Number Publication Date
JPH04176028A true JPH04176028A (en) 1992-06-23

Family

ID=17915459

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30297890A Pending JPH04176028A (en) 1990-11-07 1990-11-07 Eccentric displacement absorber for disk

Country Status (1)

Country Link
JP (1) JPH04176028A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014087460A1 (en) * 2012-12-03 2014-06-12 日立コンシューマエレクトロニクス株式会社 Record/play device
US9023946B2 (en) 2009-12-22 2015-05-05 Henkel IP & Holding GmbH Moisture cure hot melt adhesives
US9212300B2 (en) 2007-08-10 2015-12-15 Henkel Ag & Co. Kgaa Reactive hot melt adhesive
US9365751B2 (en) 2012-07-24 2016-06-14 Henkel IP & Holding GmbH Reactive hot melt adhesive
US9428677B2 (en) 2013-01-24 2016-08-30 Henkel IP & Holding GmbH Reactive hot melt adhesive

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5512561A (en) * 1978-07-14 1980-01-29 Hitachi Ltd Disc player
JPS61227234A (en) * 1985-04-01 1986-10-09 Canon Inc Information recording and reproducing device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5512561A (en) * 1978-07-14 1980-01-29 Hitachi Ltd Disc player
JPS61227234A (en) * 1985-04-01 1986-10-09 Canon Inc Information recording and reproducing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9212300B2 (en) 2007-08-10 2015-12-15 Henkel Ag & Co. Kgaa Reactive hot melt adhesive
US9023946B2 (en) 2009-12-22 2015-05-05 Henkel IP & Holding GmbH Moisture cure hot melt adhesives
US9365751B2 (en) 2012-07-24 2016-06-14 Henkel IP & Holding GmbH Reactive hot melt adhesive
WO2014087460A1 (en) * 2012-12-03 2014-06-12 日立コンシューマエレクトロニクス株式会社 Record/play device
US9428677B2 (en) 2013-01-24 2016-08-30 Henkel IP & Holding GmbH Reactive hot melt adhesive

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