DE3876544D1 - Optisches speichersystem. - Google Patents

Optisches speichersystem.

Info

Publication number: DE3876544D1
Authority: DE; Germany
Prior art keywords: storage system; optical storage; optical; storage
Prior art date: 1987-09-02
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

DE8888308137T

Other languages

English (en)

Other versions

DE3876544T3 (de

DE3876544T2 (de

Inventor

Akira Takahashi

Tetsuya Inui

Kenji Ohta

Toshihisa Deguchi

Kazuo Van

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.)

1987-09-02

Filing date

1988-09-02

Publication date

1993-01-21

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=16739722&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3876544(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1988-09-02 Application filed by Sharp Corp filed Critical Sharp Corp

1993-01-21 Application granted granted Critical

1993-01-21 Publication of DE3876544D1 publication Critical patent/DE3876544D1/de

1993-04-15 Publication of DE3876544T2 publication Critical patent/DE3876544T2/de

1999-04-29 Publication of DE3876544T3 publication Critical patent/DE3876544T3/de

2008-09-03 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
- G11B7/24085—Pits
- 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
- G11B7/0938—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 servo format, e.g. guide tracks, pilot signals
- 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
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track

DE3876544T 1987-09-02 1988-09-02 Optisches Speichersystem. Expired - Lifetime DE3876544T3 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP21970887		1987-09-02

Publications (3)

Publication Number	Publication Date
DE3876544D1 true DE3876544D1 (de)	1993-01-21
DE3876544T2 DE3876544T2 (de)	1993-04-15
DE3876544T3 DE3876544T3 (de)	1999-04-29

Family

ID=16739722

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE3876544T Expired - Lifetime DE3876544T3 (de)	1987-09-02	1988-09-02	Optisches Speichersystem.

Country Status (3)

Country	Link
US (1)	US5666345A (de)
EP (1)	EP0306324B2 (de)
DE (1)	DE3876544T3 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE69313538T2 (de) *	1992-07-03	1998-02-26	Ibm	In Bereiche unterteilter Aufzeichnungsträger
JP2934684B2 (ja) *	1993-09-10	1999-08-16	株式会社日本コンラックス	光学式情報記録再生システム及び該システムにおけるトラッキング制御装置
JPH09251668A (ja) *	1996-03-15	1997-09-22	Sony Corp	光学式記録媒体
US5932397A (en) *	1996-05-28	1999-08-03	Rvm Scientific, Inc.	Multicolor lithography for control of three dimensional refractive index gradient processing
US7239602B2 (en) *	1998-08-27	2007-07-03	Ricoh Company, Ltd.	Optical information recording medium with a partition wall between an information tracks groove and a preformat pit encoding information therefor
JPH11250504A (ja) *	1998-02-27	1999-09-17	Sony Corp	光記録媒体及びその製造方法
JP2001006220A (ja) *	1999-06-22	2001-01-12	Sharp Corp	光記録媒体
JP3490356B2 (ja) *	1999-09-29	2004-01-26	シャープ株式会社	光記録媒体、並びに、光記録媒体用原盤およびその製造方法
JP3962522B2 (ja) *	2000-02-14	2007-08-22	パイオニア株式会社	情報記録媒体
JP4157254B2 (ja) *	2000-06-14	2008-10-01	シャープ株式会社	情報記録再生装置およびそのトラッキングサーボ方法
US20040090874A1 (en) *	2002-11-08	2004-05-13	Kunjithapatham Balasubramanian	Apparatus and method for effective reduction of a laser beam spot size
KR100717854B1 (ko) *	2005-06-24	2007-05-14	엘지전자 주식회사	근접장 방식 및 원격장 방식 호환 광 디스크 드라이브에서광 디스크 매질 확인 방법 및 이를 이용한 광 디스크 장치
US7596067B2 (en) *	2005-08-29	2009-09-29	Hewlett-Packard Development Company, L.P.	Method of laser spot location and adjustment thereof

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5841446A (ja) *	1981-09-04	1983-03-10	Hitachi Ltd	光学的情報追跡方式
EP0100995A3 (en) *	1982-08-10	1985-10-16	Kabushiki Kaisha Toshiba	Optical disk
JPS60261043A (ja) *	1984-06-07	1985-12-24	Victor Co Of Japan Ltd	情報記録媒体円盤
JPS6185653A (ja) *	1984-10-02	1986-05-01	Sharp Corp	光磁気メモリ素子
JPS61126635A (ja) *	1984-11-21	1986-06-14	Nec Home Electronics Ltd	光メモリデイスク
JPS61129741A (ja) *	1984-11-28	1986-06-17	Nec Home Electronics Ltd	光メモリデイスク
JPS61151843A (ja) *	1984-12-25	1986-07-10	Nec Home Electronics Ltd	光メモリデイスク
NL8500153A (nl) *	1985-01-22	1986-08-18	Philips Nv	Registratiedragerlichaam voorzien van een reliefstruktuur van optisch detekteerbare servospoorgedeelten en sektoradressen en inrichting voor het aanbrengen van deze struktuur.
JPS61178116A (ja) *	1985-01-31	1986-08-09	Oyo Jiki Kenkyusho:Kk	金属箔の製造方法および製造装置
JPS61214246A (ja) *	1985-03-20	1986-09-24	Matsushita Electric Ind Co Ltd	平板状情報記録担体
US4707816A (en) *	1985-03-29	1987-11-17	Hitachi, Ltd.	Method and apparatus for composite wobbled and push-pull tracking servo system
JPH0746429B2 (ja) *	1985-06-21	1995-05-17	オリンパス光学工業株式会社	光学式記録再生装置
JP2857284B2 (ja) *	1992-08-24	1999-02-17	レームプロパティズビーブイ	電力系統制御装置

1988
- 1988-09-02 DE DE3876544T patent/DE3876544T3/de not_active Expired - Lifetime
- 1988-09-02 EP EP88308137A patent/EP0306324B2/de not_active Expired - Lifetime
1994
- 1994-02-28 US US08/203,619 patent/US5666345A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
EP0306324A1 (de)	1989-03-08
DE3876544T3 (de)	1999-04-29
DE3876544T2 (de)	1993-04-15
US5666345A (en)	1997-09-09
EP0306324B2 (de)	1998-11-25
EP0306324B1 (de)	1992-12-09

Publication	Publication Date	Title
DE3751578D1 (de)	1995-12-07	Datenspeichersystem.
DE3853982D1 (de)	1995-07-20	Optisches Plattenspeichersystem.
NO912941D0 (no)	1991-07-29	Lineaermotor-fremdriftssystem.
DE3864101D1 (de)	1991-09-12	Stuetzanlage.
FI891846A0 (fi)	1989-04-18	Optisk avbrytare.
DE3887324D1 (de)	1994-03-03	Speicheranordnung.
NO871342L (no)	1987-10-02	Lagringssystem.
DE3770283D1 (de)	1991-07-04	Optisches speichergeraet.
DE3860235D1 (de)	1990-07-19	Optisches schaltsystem.
FI912295A0 (fi)	1991-05-10	Optisk hastighetsbestaemning.
DE3850050D1 (de)	1994-07-14	Optisches Speichermedium.
DE3873005D1 (de)	1992-08-27	Optischer plattenspieler.
NO882138D0 (no)	1988-05-16	Datalagringssystem.
DE3876544D1 (de)	1993-01-21	Optisches speichersystem.
DE68907612D1 (de)	1993-08-19	Optisches system.
DE68921916D1 (de)	1995-05-04	Apochromatisches optisches System.
DE3851241D1 (de)	1994-10-06	Speicheranordnung.
DE3765174D1 (de)	1990-10-31	Lagersystem.
DE3785938D1 (de)	1993-07-01	Optisches system.
DE3880010D1 (de)	1993-05-13	Lagereinrichtung.
DE68910022D1 (de)	1993-11-25	Optisches Speichersystem.
DE68912744D1 (de)	1994-03-10	Bifokales optisches System.
NO870904L (no)	1988-09-05	Oljelagringssystem.
NO164699C (no)	1990-11-07	Oppbevaringssystem.
DE3888440D1 (de)	1994-04-21	Optisch aktive 2-Biphenylpyridine.

Legal Events

Date	Code	Title	Description
1993-12-16	8363	Opposition against the patent
1999-02-04	8366	Restricted maintained after opposition proceedings