CA2023338A1 - Optical disk device eliminating offset of actuator and offset eliminating method used thereby - Google Patents

Optical disk device eliminating offset of actuator and offset eliminating method used thereby

Info

Publication number
CA2023338A1
CA2023338A1 CA 2023338 CA2023338A CA2023338A1 CA 2023338 A1 CA2023338 A1 CA 2023338A1 CA 2023338 CA2023338 CA 2023338 CA 2023338 A CA2023338 A CA 2023338A CA 2023338 A1 CA2023338 A1 CA 2023338A1
Authority
CA
Canada
Prior art keywords
offset
actuator
eliminating
optical disk
disk device
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
CA 2023338
Other languages
French (fr)
Other versions
CA2023338C (en
Inventor
Shigenori Yanagi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of CA2023338A1 publication Critical patent/CA2023338A1/en
Application granted granted Critical
Publication of CA2023338C publication Critical patent/CA2023338C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

An optical disk device for eliminating an offset of actuator which controls a fine adjustment of a tracking control. In the device, in an offset measuring mode, an electric drive current of the actuator is changed and the drive current is stored and held when a detection output at a neutral position in a position detector of the actuator is obtained. Then, in a usual operation mode, the obtained offset current is constantly supplied as the drive current of the actuator, whereby a spring force is cancelled and an offset of the tracking error signal is eliminated.
CA002023338A 1989-08-19 1990-08-15 Optical disk device eliminating offset of actuator and offset eliminating method used thereby Expired - Fee Related CA2023338C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1-213431 1989-08-19
JP1213431A JPH0377285A (en) 1989-08-19 1989-08-19 female contact

Publications (2)

Publication Number Publication Date
CA2023338A1 true CA2023338A1 (en) 1991-02-20
CA2023338C CA2023338C (en) 1996-06-25

Family

ID=16639115

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002023338A Expired - Fee Related CA2023338C (en) 1989-08-19 1990-08-15 Optical disk device eliminating offset of actuator and offset eliminating method used thereby

Country Status (2)

Country Link
JP (1) JPH0377285A (en)
CA (1) CA2023338C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995027368A1 (en) * 1994-03-30 1995-10-12 Sony Corporation Digital switch
KR100799548B1 (en) * 2006-09-05 2008-01-31 한국단자공업 주식회사 Backlight Lamp Terminal Fixing Socket
JP6002031B2 (en) * 2012-12-27 2016-10-05 ヒロセ電機株式会社 Electrical connector
JP2014232576A (en) * 2013-05-28 2014-12-11 株式会社オートネットワーク技術研究所 Multi-contact female terminal
WO2017053675A1 (en) 2015-09-23 2017-03-30 Molex, Llc Plug assembly and receptacle assembly with two rows

Also Published As

Publication number Publication date
JPH0377285A (en) 1991-04-02
CA2023338C (en) 1996-06-25

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 19990817