SG66291A1 - Tracking regulation circuit including apparatus for disabling coarse drive signals - Google Patents
Tracking regulation circuit including apparatus for disabling coarse drive signalsInfo
- Publication number
- SG66291A1 SG66291A1 SG1996008112A SG1996008112A SG66291A1 SG 66291 A1 SG66291 A1 SG 66291A1 SG 1996008112 A SG1996008112 A SG 1996008112A SG 1996008112 A SG1996008112 A SG 1996008112A SG 66291 A1 SG66291 A1 SG 66291A1
- Authority
- SG
- Singapore
- Prior art keywords
- disabling
- circuit including
- drive signals
- regulation circuit
- including apparatus
- 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
- G11B7/0948—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 specially adapted for detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
-
- 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
- G11B7/08—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 |
|---|---|---|---|
| DE4102801A DE4102801A1 (en) | 1991-01-31 | 1991-01-31 | TRACK CONTROL |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SG66291A1 true SG66291A1 (en) | 1999-07-20 |
Family
ID=6424041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SG1996008112A SG66291A1 (en) | 1991-01-31 | 1992-01-28 | Tracking regulation circuit including apparatus for disabling coarse drive signals |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0569412B1 (en) |
| JP (1) | JPH06504645A (en) |
| KR (1) | KR100247654B1 (en) |
| DE (2) | DE4102801A1 (en) |
| ES (1) | ES2137943T3 (en) |
| SG (1) | SG66291A1 (en) |
| WO (2) | WO1991018393A1 (en) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5758249A (en) * | 1980-09-24 | 1982-04-07 | Olympus Optical Co Ltd | Optical system recording and/or reproducing device |
| JPS5862868A (en) * | 1981-10-09 | 1983-04-14 | Pioneer Video Corp | High speed address information searching system of information reproducing device |
| JPS58166567A (en) * | 1982-03-26 | 1983-10-01 | Matsushita Electric Ind Co Ltd | Retrieving device of information track |
| JPS59152546A (en) * | 1983-02-21 | 1984-08-31 | Toshiba Corp | Optical disk record reproducer |
| JPS60121533A (en) * | 1983-12-02 | 1985-06-29 | Matsushita Electric Ind Co Ltd | Optical information recording and reproducing device |
| JP2644720B2 (en) * | 1985-02-25 | 1997-08-25 | 株式会社日立製作所 | Truck retracting method |
| JPS61214230A (en) * | 1985-03-20 | 1986-09-24 | Hitachi Ltd | Optical disc device |
| JPS61260427A (en) * | 1985-05-14 | 1986-11-18 | Olympus Optical Co Ltd | Optical information recording and reproducing device |
| JP2568525B2 (en) * | 1986-12-10 | 1997-01-08 | 松下通信工業株式会社 | Runaway prevention device for optical pickup |
| JP2557896B2 (en) * | 1987-07-31 | 1996-11-27 | 株式会社東芝 | Disk unit |
| JPS6437729A (en) * | 1987-08-04 | 1989-02-08 | Canon Kk | Optical information recording and reproducing device |
| JP2563383B2 (en) * | 1987-10-23 | 1996-12-11 | 松下電器産業株式会社 | Recording and playback device |
| JP2656812B2 (en) * | 1988-10-12 | 1997-09-24 | キヤノン株式会社 | Tracking control device |
-
1991
- 1991-01-31 DE DE4102801A patent/DE4102801A1/en not_active Withdrawn
- 1991-05-14 WO PCT/EP1991/000892 patent/WO1991018393A1/en unknown
-
1992
- 1992-01-28 SG SG1996008112A patent/SG66291A1/en unknown
- 1992-01-28 EP EP92903403A patent/EP0569412B1/en not_active Expired - Lifetime
- 1992-01-28 WO PCT/EP1992/000170 patent/WO1992014240A1/en active IP Right Grant
- 1992-01-28 KR KR1019930702254A patent/KR100247654B1/en not_active IP Right Cessation
- 1992-01-28 JP JP4503247A patent/JPH06504645A/en active Pending
- 1992-01-28 ES ES92903403T patent/ES2137943T3/en not_active Expired - Lifetime
- 1992-01-28 DE DE59209753T patent/DE59209753D1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06504645A (en) | 1994-05-26 |
| KR100247654B1 (en) | 2000-03-15 |
| ES2137943T3 (en) | 2000-01-01 |
| WO1992014240A1 (en) | 1992-08-20 |
| DE59209753D1 (en) | 1999-11-04 |
| DE4102801A1 (en) | 1992-08-06 |
| WO1991018393A1 (en) | 1991-11-28 |
| EP0569412A1 (en) | 1993-11-18 |
| KR930703670A (en) | 1993-11-30 |
| EP0569412B1 (en) | 1999-09-29 |
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