DE69114099D1 - Optisches Datenspeicherungssystem mit Servosektor. - Google Patents
Optisches Datenspeicherungssystem mit Servosektor.Info
- Publication number
- DE69114099D1 DE69114099D1 DE69114099T DE69114099T DE69114099D1 DE 69114099 D1 DE69114099 D1 DE 69114099D1 DE 69114099 T DE69114099 T DE 69114099T DE 69114099 T DE69114099 T DE 69114099T DE 69114099 D1 DE69114099 D1 DE 69114099D1
- Authority
- DE
- Germany
- Prior art keywords
- data storage
- storage system
- optical data
- servo sector
- sector
- 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 - Fee Related
Links
- 238000013500 data storage Methods 0.000 title 1
- 230000003287 optical effect Effects 0.000 title 1
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
- G11B7/08—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
-
- 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
- G11B7/00745—Sectoring or header formats within a track
-
- 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
- G11B7/0901—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 for track following only
-
- 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
- G11B7/094—Methods and circuits for servo offset compensation
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/579,434 US5327408A (en) | 1990-09-07 | 1990-09-07 | Optical disk with sector servo patterns compensating for variations in pattern size and/or radial velocity |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69114099D1 true DE69114099D1 (de) | 1995-11-30 |
DE69114099T2 DE69114099T2 (de) | 1996-05-30 |
Family
ID=24316889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69114099T Expired - Fee Related DE69114099T2 (de) | 1990-09-07 | 1991-08-30 | Optisches Datenspeicherungssystem mit Servosektor. |
Country Status (4)
Country | Link |
---|---|
US (1) | US5327408A (de) |
EP (1) | EP0480574B1 (de) |
JP (1) | JPH04232616A (de) |
DE (1) | DE69114099T2 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5872767A (en) * | 1995-02-17 | 1999-02-16 | Matsushita Electric Industrial Co., Ltd. | Optical disk and an optical disk recording/reproduction device having address blocks located on boundary lines between adjoining tracks |
JP3917207B2 (ja) * | 1996-01-12 | 2007-05-23 | パイオニア株式会社 | プリ情報記録方法及び装置、情報記録方法及び装置並びに情報記録媒体 |
WO1997038420A1 (fr) * | 1996-04-11 | 1997-10-16 | Matsushita Electric Industrial Co., Ltd. | Disque optique |
US5892745A (en) * | 1996-08-27 | 1999-04-06 | Seagate Technology, Inc. | System and method to compensate for data defects within a magneto-optical computer memory device |
US6014283A (en) * | 1997-05-15 | 2000-01-11 | Western Digital Corporation | Non-quadrature servo burst pattern for micro-jogging a magnetoresistive head in a magnetic disk drive |
KR100618962B1 (ko) * | 1998-08-29 | 2006-09-01 | 삼성전자주식회사 | 서보 에러 검출 방법, 이에 적합한 장치, 트랙킹 에러 검출 방법, 그리고 틸트 에러 검출방법 |
US6349079B1 (en) | 1998-10-09 | 2002-02-19 | Seagate Technology Llc | System and method for detecting a head positioning error within a computer memory device |
KR100408298B1 (ko) * | 2001-09-29 | 2003-12-01 | 삼성전자주식회사 | 디스크 드라이브에서의 적응적 트랙 제로 크로싱 신호발생 장치 및 방법 |
JP2006010568A (ja) * | 2004-06-28 | 2006-01-12 | Canon Inc | 位置検出装置 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3919697A (en) * | 1974-06-26 | 1975-11-11 | Battelle Development Corp | Data record tracking using track identifying information in the gaps between recorded data groups |
US4549232A (en) * | 1983-06-27 | 1985-10-22 | International Business Machines Corporation | Phase modulated servo system |
US4608618A (en) * | 1984-10-25 | 1986-08-26 | Verbatim Corporation | Digital alignment diagnostic disk |
JPS61144781A (ja) * | 1984-12-18 | 1986-07-02 | Toshiba Corp | デイスク装置 |
NL8500152A (nl) * | 1985-01-22 | 1986-08-18 | Philips Nv | Registratiedragerlichaam voorzien van vooraf aangebrachte en optisch detekteerbare servospoorgedeelten en sektoradressen. |
US4811135A (en) * | 1985-11-20 | 1989-03-07 | Magnetic Peripherals Inc. | Tri-phase servo pattern for providing information for positioning the transducers of a magnetic disk storage drive |
US4669004A (en) * | 1986-02-27 | 1987-05-26 | Quantum Corporation | High capacity disk file with embedded sector servo |
JP2796285B2 (ja) * | 1986-07-11 | 1998-09-10 | 株式会社日立製作所 | トラッキング方法及びそれを用いた光ディスク装置 |
FR2609591B1 (fr) * | 1987-01-13 | 1990-12-07 | Soudure Autogene Francaise | Coiffe pour torche de travail a l'arc et torche correspondante |
KR910008503B1 (ko) * | 1987-03-13 | 1991-10-18 | 미쯔비시덴끼 가부시끼가이샤 | 광 디스크 |
JP2653073B2 (ja) * | 1987-08-21 | 1997-09-10 | ソニー株式会社 | ディスク状記録媒体 |
US5070421A (en) * | 1987-09-25 | 1991-12-03 | Fuji Xerox Co., Ltd. | Magnetic disk system having tracking control using recorded information |
US4910617A (en) * | 1988-04-29 | 1990-03-20 | Brand Technologies | Disk drive head positioning servo system utilizing encoded track zone information |
DE3833314A1 (de) * | 1988-09-30 | 1990-04-05 | Siemens Ag | Optischer datenspeicher mit einer zu positionierung formatierten datenspeicherplatte |
US5134601A (en) * | 1989-08-08 | 1992-07-28 | International Business Machines Corporation | Optical disk sector servo patterns |
JP2893752B2 (ja) * | 1989-09-29 | 1999-05-24 | ソニー株式会社 | ディスク状記録媒体 |
US5073833A (en) * | 1989-11-13 | 1991-12-17 | International Business Machines Corporation | Dual sector servo system for disk file with separate read and write heads |
US5050144A (en) * | 1989-12-11 | 1991-09-17 | International Business Machines Corporation | Recording intensity modulated signals and polarization-modulated optical signals in the same area of a storage member |
-
1990
- 1990-09-07 US US07/579,434 patent/US5327408A/en not_active Expired - Lifetime
-
1991
- 1991-07-15 JP JP3173647A patent/JPH04232616A/ja active Pending
- 1991-08-30 DE DE69114099T patent/DE69114099T2/de not_active Expired - Fee Related
- 1991-08-30 EP EP91307968A patent/EP0480574B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0480574B1 (de) | 1995-10-25 |
US5327408A (en) | 1994-07-05 |
DE69114099T2 (de) | 1996-05-30 |
EP0480574A3 (en) | 1993-04-14 |
JPH04232616A (ja) | 1992-08-20 |
EP0480574A2 (de) | 1992-04-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |