HK68995A - Optical scanning device - Google Patents
Optical scanning deviceInfo
- Publication number
- HK68995A HK68995A HK68995A HK68995A HK68995A HK 68995 A HK68995 A HK 68995A HK 68995 A HK68995 A HK 68995A HK 68995 A HK68995 A HK 68995A HK 68995 A HK68995 A HK 68995A
- Authority
- HK
- Hong Kong
- Prior art keywords
- laser beam
- track
- data track
- level laser
- optical scanning
- Prior art date
Links
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
- G11B7/09—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
-
- 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
- G11B7/08—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
- G11B7/0904—Dithered tracking systems
-
- 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
- G11B7/24073—Tracks
- G11B7/24082—Meandering
Landscapes
- Optical Recording Or Reproduction (AREA)
- Vehicle Body Suspensions (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Communication System (AREA)
- Holo Graphy (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3923330A DE3923330A1 (de) | 1989-07-14 | 1989-07-14 | Optische abtastvorrichtung |
| PCT/EP1990/001039 WO1991001551A1 (de) | 1989-07-14 | 1990-06-29 | Optische abtastvorrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| HK68995A true HK68995A (en) | 1995-05-12 |
Family
ID=6385049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HK68995A HK68995A (en) | 1989-07-14 | 1995-05-04 | Optical scanning device |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US5247507A (es) |
| EP (1) | EP0485404B1 (es) |
| JP (1) | JP2877952B2 (es) |
| KR (1) | KR920704280A (es) |
| CN (1) | CN1019428B (es) |
| AT (1) | ATE111627T1 (es) |
| AU (1) | AU6040990A (es) |
| DD (1) | DD296773A5 (es) |
| DE (2) | DE3923330A1 (es) |
| ES (1) | ES2061051T3 (es) |
| HK (1) | HK68995A (es) |
| HU (1) | HUT60560A (es) |
| MY (1) | MY105973A (es) |
| WO (1) | WO1991001551A1 (es) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR950010418B1 (ko) * | 1991-08-28 | 1995-09-16 | 미쯔비시덴끼 가부시끼가이샤 | 광기록재생장치 |
| US5659613A (en) * | 1994-06-29 | 1997-08-19 | Macrovision Corporation | Method and apparatus for copy protection for various recording media using a video finger print |
| JPH08147699A (ja) * | 1994-11-22 | 1996-06-07 | Sony Corp | 情報記録再生装置 |
| US5835478A (en) * | 1995-06-15 | 1998-11-10 | Sony Corporation | Optical disc having address information for recording and reproducing data at correct positions |
| KR970008064A (ko) * | 1995-07-25 | 1997-02-24 | 김광호 | 컴팩트 디스크 플레이어의 흠집부분 재생방지방법 |
| US6052358A (en) * | 1996-10-04 | 2000-04-18 | Sony Corporation | Head feeding mechanism and optical pick-up feeding mechanism |
| US5757756A (en) * | 1996-10-15 | 1998-05-26 | Eastman Kodak Company | Reducing mark length variations in recording data in wobbled groove storage media |
| JP3224513B2 (ja) * | 1996-11-27 | 2001-10-29 | シャープ株式会社 | 光ディスクの再生方法 |
| US6355290B1 (en) * | 1998-07-17 | 2002-03-12 | Creative Edge Design Group, Ltd. | Ice cream manufacturing and packaging process and a package for this process |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS583297B2 (ja) * | 1978-06-09 | 1983-01-20 | 株式会社日立製作所 | 情報記録再生方法，その装置およびその記録媒体 |
| NL8000121A (nl) * | 1980-01-09 | 1981-08-03 | Philips Nv | Schijfvormige, optische uitleesbare registratiedrager als opslagmedium voor datainformatie, inrichting voor het vervaardigen van zo'n registratiedrager, inrichting voor het optekenen van datainformatie in zo'n registratiedrager en inrichting voor het uitlezen van zo'n registratiedrager. |
| JPS59177735A (ja) * | 1983-03-25 | 1984-10-08 | Canon Inc | 光情報記録再生装置 |
-
1989
- 1989-07-14 DE DE3923330A patent/DE3923330A1/de not_active Withdrawn
-
1990
- 1990-06-29 DE DE59007160T patent/DE59007160D1/de not_active Expired - Lifetime
- 1990-06-29 HU HU9219A patent/HUT60560A/hu unknown
- 1990-06-29 EP EP90910647A patent/EP0485404B1/de not_active Expired - Lifetime
- 1990-06-29 WO PCT/EP1990/001039 patent/WO1991001551A1/de active IP Right Grant
- 1990-06-29 AT AT90910647T patent/ATE111627T1/de not_active IP Right Cessation
- 1990-06-29 ES ES90910647T patent/ES2061051T3/es not_active Expired - Lifetime
- 1990-06-29 JP JP2510275A patent/JP2877952B2/ja not_active Expired - Lifetime
- 1990-06-29 KR KR1019920700076A patent/KR920704280A/ko not_active Application Discontinuation
- 1990-06-29 AU AU60409/90A patent/AU6040990A/en not_active Abandoned
- 1990-07-13 DD DD90342780A patent/DD296773A5/de not_active IP Right Cessation
- 1990-07-13 MY MYPI90001183A patent/MY105973A/en unknown
- 1990-07-14 CN CN90104614A patent/CN1019428B/zh not_active Expired
-
1992
- 1992-01-16 US US07/880,940 patent/US5247507A/en not_active Expired - Lifetime
-
1995
- 1995-05-04 HK HK68995A patent/HK68995A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1019428B (zh) | 1992-12-09 |
| ES2061051T3 (es) | 1994-12-01 |
| EP0485404B1 (de) | 1994-09-14 |
| CN1048764A (zh) | 1991-01-23 |
| EP0485404A1 (de) | 1992-05-20 |
| JP2877952B2 (ja) | 1999-04-05 |
| DD296773A5 (de) | 1991-12-12 |
| MY105973A (en) | 1995-02-28 |
| US5247507A (en) | 1993-09-21 |
| AU6040990A (en) | 1991-02-22 |
| KR920704280A (ko) | 1992-12-19 |
| DE59007160D1 (de) | 1994-10-20 |
| JPH04507029A (ja) | 1992-12-03 |
| ATE111627T1 (de) | 1994-09-15 |
| HU9200019D0 (en) | 1992-04-28 |
| DE3923330A1 (de) | 1991-01-24 |
| HUT60560A (en) | 1992-09-28 |
| WO1991001551A1 (de) | 1991-02-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PF | Patent in force | ||
| PE | Patent expired |
Effective date: 20100628 |