DE3787675D1 - Optisches Datenaufzeichnungs-/Wiedergabegerät. - Google Patents

Optisches Datenaufzeichnungs-/Wiedergabegerät.

Info

Publication number: DE3787675D1
Authority: DE; Germany
Prior art keywords: playback device; data recording; optical data; optical; playback
Prior art date: 1986-06-19
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 - Lifetime

Application number

DE87305483T

Other languages

English (en)

Other versions

DE3787675T2 (de

Inventor

Masaru Nomura

Toshihisa Daiyahaitsu Deguchi

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.)

Sharp Corp

Original Assignee

Sharp 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.)

1986-06-19

Filing date

1987-06-19

Publication date

1993-11-11

1987-06-19 Application filed by Sharp Corp filed Critical Sharp Corp

1993-11-11 Application granted granted Critical

1993-11-11 Publication of DE3787675D1 publication Critical patent/DE3787675D1/de

1994-02-03 Publication of DE3787675T2 publication Critical patent/DE3787675T2/de

2007-06-20 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Classifications

- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/08—Track changing or selecting during transducing operation
- 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
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head

DE19873787675 1986-06-19 1987-06-19 Optisches Datenaufzeichnungs-/Wiedergabegerät. Expired - Lifetime DE3787675T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP14589786A JPS63825A (ja)	1986-06-19	1986-06-19	光情報記録再生装置

Publications (2)

Publication Number	Publication Date
DE3787675D1 true DE3787675D1 (de)	1993-11-11
DE3787675T2 DE3787675T2 (de)	1994-02-03

Family

ID=15395581

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE19873787675 Expired - Lifetime DE3787675T2 (de)	1986-06-19	1987-06-19	Optisches Datenaufzeichnungs-/Wiedergabegerät.

Country Status (4)

Country	Link
EP (1)	EP0251601B1 (de)
JP (1)	JPS63825A (de)
CA (1)	CA1297189C (de)
DE (1)	DE3787675T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5029151A (en) *	1988-02-17	1991-07-02	Canon Kabushiki Kaisha	Optical information processing apparatus including a limiter for limiting error of focusing and/or tracking actuators and a circuit for adjusting the limit range thereof
JP2732590B2 (ja) *	1988-06-30	1998-03-30	株式会社東芝	記録媒体処理装置
JP2732591B2 (ja) *	1988-06-30	1998-03-30	株式会社東芝	記録媒体処理装置
JP2785290B2 (ja) *	1988-12-19	1998-08-13	ソニー株式会社	光ディスクのシーク及びトラッキング装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS58166567A (ja) *	1982-03-26	1983-10-01	Matsushita Electric Ind Co Ltd	情報トラックの検索装置
JPS59144051A (ja) *	1983-02-07	1984-08-17	Matsushita Electric Ind Co Ltd	光学的記録再生装置
JPS59165278A (ja) *	1983-03-09	1984-09-18	Matsushita Electric Ind Co Ltd	情報トラックの検索装置
JPS6087475A (ja) *	1983-10-18	1985-05-17	Mitsubishi Electric Corp	情報装置のヘツド部駆動装置
US4627039A (en) *	1983-12-23	1986-12-02	Magnetic Peripherals Inc.	Head positioning servo system for optical recording with coarse and fine control
JPS60136972A (ja) *	1983-12-26	1985-07-20	Hitachi Ltd	磁気デイスク装置
JPS613359A (ja) *	1984-06-15	1986-01-09	Matsushita Electric Ind Co Ltd	光学式記録再生装置
US4788421A (en) *	1985-05-15	1988-11-29	Mitsubishi Denki Kabushiki Kaisha	Apparatus for controlling relative movement of an optical head to an optical disk with velocity detection

1986
- 1986-06-19 JP JP14589786A patent/JPS63825A/ja active Pending
1987
- 1987-06-10 CA CA000539347A patent/CA1297189C/en not_active Expired - Lifetime
- 1987-06-19 DE DE19873787675 patent/DE3787675T2/de not_active Expired - Lifetime
- 1987-06-19 EP EP19870305483 patent/EP0251601B1/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
DE3787675T2 (de)	1994-02-03
EP0251601A3 (en)	1989-08-16
CA1297189C (en)	1992-03-10
JPS63825A (ja)	1988-01-05
EP0251601B1 (de)	1993-10-06
EP0251601A2 (de)	1988-01-07

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DE3787675D1 (de)	1993-11-11	Optisches Datenaufzeichnungs-/Wiedergabegerät.
DE3878613D1 (de)	1993-04-01	Aufzeichnungs- oder wiedergabebandgeraet.
DE3773303D1 (de)	1991-10-31	Optisches aufzeichnungsmedium.
DE3853497D1 (de)	1995-05-11	Optisches Informationsaufzeichnungsmedium.

Legal Events

Date	Code	Title	Description
1994-06-30	8381	Inventor (new situation)	Free format text: NOMURA, MASARU, TENRI-SHI NARA-KEN, JP DEGUCHI, TOSHIHISA DAIYAHAITSU GAKUENMAE C-722, NARA-SHI NARA-KEN, JP
1994-11-03	8364	No opposition during term of opposition