ATE393450T1 - Scheibenneigungs-detektionseinrichtung - Google Patents
Scheibenneigungs-detektionseinrichtungInfo
- Publication number
- ATE393450T1 ATE393450T1 AT05702727T AT05702727T ATE393450T1 AT E393450 T1 ATE393450 T1 AT E393450T1 AT 05702727 T AT05702727 T AT 05702727T AT 05702727 T AT05702727 T AT 05702727T AT E393450 T1 ATE393450 T1 AT E393450T1
- Authority
- AT
- Austria
- Prior art keywords
- periodic signal
- tilt detection
- disc
- signal
- asymmetry
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title abstract 4
- 230000000737 periodic effect Effects 0.000 abstract 4
- 230000003287 optical effect Effects 0.000 abstract 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
- G11B7/09—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
- G11B7/095—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 discs, e.g. for compensation of eccentricity or wobble
-
- 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
- G11B7/095—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 discs, e.g. for compensation of eccentricity or wobble
- G11B7/0956—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 discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
-
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
- Geophysics And Detection Of Objects (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04100290 | 2004-01-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE393450T1 true ATE393450T1 (de) | 2008-05-15 |
Family
ID=34814357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT05702727T ATE393450T1 (de) | 2004-01-28 | 2005-01-19 | Scheibenneigungs-detektionseinrichtung |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20080247287A1 (de) |
| EP (1) | EP1711940B1 (de) |
| JP (1) | JP2007520025A (de) |
| KR (1) | KR20060121944A (de) |
| CN (1) | CN1914671A (de) |
| AT (1) | ATE393450T1 (de) |
| DE (1) | DE602005006239T2 (de) |
| WO (1) | WO2005073962A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010225241A (ja) * | 2009-03-24 | 2010-10-07 | Toshiba Corp | 情報処理装置および故障予兆判定方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6020326A (ja) * | 1983-07-14 | 1985-02-01 | Olympus Optical Co Ltd | 光学的記録装置 |
| JPS6066341A (ja) * | 1983-09-20 | 1985-04-16 | Olympus Optical Co Ltd | 情報記録再生装置 |
| US5202864A (en) * | 1988-04-14 | 1993-04-13 | Matsushita Electric Industrial Co., Ltd. | Slip-off preventing tracking control apparatus |
| JP2001344790A (ja) * | 2000-05-31 | 2001-12-14 | Matsushita Electric Ind Co Ltd | 光ディスク装置 |
| AU2001272372A1 (en) * | 2000-07-12 | 2002-01-21 | Disccontrol Aps | Method for improved reading of a digital data disc |
| JP2002288859A (ja) * | 2001-03-23 | 2002-10-04 | Toshiba Corp | ディスク装置とそのチルト検出方法 |
-
2005
- 2005-01-19 AT AT05702727T patent/ATE393450T1/de not_active IP Right Cessation
- 2005-01-19 WO PCT/IB2005/050228 patent/WO2005073962A1/en not_active Ceased
- 2005-01-19 EP EP05702727A patent/EP1711940B1/de not_active Expired - Lifetime
- 2005-01-19 CN CNA2005800032942A patent/CN1914671A/zh active Pending
- 2005-01-19 DE DE602005006239T patent/DE602005006239T2/de not_active Expired - Fee Related
- 2005-01-19 KR KR1020067015052A patent/KR20060121944A/ko not_active Withdrawn
- 2005-01-19 JP JP2006550419A patent/JP2007520025A/ja not_active Withdrawn
- 2005-01-19 US US10/597,389 patent/US20080247287A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| KR20060121944A (ko) | 2006-11-29 |
| JP2007520025A (ja) | 2007-07-19 |
| DE602005006239D1 (de) | 2008-06-05 |
| CN1914671A (zh) | 2007-02-14 |
| US20080247287A1 (en) | 2008-10-09 |
| EP1711940B1 (de) | 2008-04-23 |
| DE602005006239T2 (de) | 2009-05-20 |
| EP1711940A1 (de) | 2006-10-18 |
| WO2005073962A1 (en) | 2005-08-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |