CN1542779A - 校准光盘盘面倾斜伺服系统的方法及相关光盘存取装置 - Google Patents
校准光盘盘面倾斜伺服系统的方法及相关光盘存取装置 Download PDFInfo
- Publication number
- CN1542779A CN1542779A CNA200410034339XA CN200410034339A CN1542779A CN 1542779 A CN1542779 A CN 1542779A CN A200410034339X A CNA200410034339X A CN A200410034339XA CN 200410034339 A CN200410034339 A CN 200410034339A CN 1542779 A CN1542779 A CN 1542779A
- Authority
- CN
- China
- Prior art keywords
- card
- drive
- focusing
- read head
- servo system
- 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.)
- Granted
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Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/24—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by sensing features on the record carrier other than the transducing track ; sensing signals or marks recorded by another method than the main recording
-
- 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
- G11B7/0945—Methods for initialising servos, start-up sequences
-
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
- G11B7/1267—Power calibration
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
Abstract
Description
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US46157803P | 2003-04-10 | 2003-04-10 | |
US60/461,578 | 2003-04-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1542779A true CN1542779A (zh) | 2004-11-03 |
CN1257500C CN1257500C (zh) | 2006-05-24 |
Family
ID=34375192
Family Applications (10)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004100325828A Expired - Lifetime CN1271618C (zh) | 2003-04-10 | 2004-04-09 | 光盘写入功率校正时决定试写结果参数的方法及相关装置 |
CNB2004100343633A Active CN100365732C (zh) | 2003-04-10 | 2004-04-12 | 判断地址数据的方法 |
CNB2004100343648A Active CN1246835C (zh) | 2003-04-10 | 2004-04-12 | 动态调整限幅电平的限幅器 |
CNB2004100343652A Active CN1331149C (zh) | 2003-04-10 | 2004-04-12 | 相位频率比较装置 |
CNB2004100343436A Active CN1271629C (zh) | 2003-04-10 | 2004-04-12 | 摆动时钟产生电路及其方法 |
CNB2004100343455A Active CN1324604C (zh) | 2003-04-10 | 2004-04-12 | 摆动时钟产生电路及其方法 |
CNB2004100343510A Active CN1261931C (zh) | 2003-04-10 | 2004-04-12 | 时钟信号调整装置 |
CNB200410034339XA Active CN1257500C (zh) | 2003-04-10 | 2004-04-12 | 校准光盘盘面倾斜伺服系统的方法及相关光盘存取装置 |
CNB2004100343440A Active CN1291412C (zh) | 2003-04-10 | 2004-04-12 | 摆动时钟产生电路及其方法 |
CNB2004100343385A Active CN1257494C (zh) | 2003-04-10 | 2004-04-12 | 一种进行光盘写入功率校正的方法及相关装置 |
Family Applications Before (7)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004100325828A Expired - Lifetime CN1271618C (zh) | 2003-04-10 | 2004-04-09 | 光盘写入功率校正时决定试写结果参数的方法及相关装置 |
CNB2004100343633A Active CN100365732C (zh) | 2003-04-10 | 2004-04-12 | 判断地址数据的方法 |
CNB2004100343648A Active CN1246835C (zh) | 2003-04-10 | 2004-04-12 | 动态调整限幅电平的限幅器 |
CNB2004100343652A Active CN1331149C (zh) | 2003-04-10 | 2004-04-12 | 相位频率比较装置 |
CNB2004100343436A Active CN1271629C (zh) | 2003-04-10 | 2004-04-12 | 摆动时钟产生电路及其方法 |
CNB2004100343455A Active CN1324604C (zh) | 2003-04-10 | 2004-04-12 | 摆动时钟产生电路及其方法 |
CNB2004100343510A Active CN1261931C (zh) | 2003-04-10 | 2004-04-12 | 时钟信号调整装置 |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004100343440A Active CN1291412C (zh) | 2003-04-10 | 2004-04-12 | 摆动时钟产生电路及其方法 |
CNB2004100343385A Active CN1257494C (zh) | 2003-04-10 | 2004-04-12 | 一种进行光盘写入功率校正的方法及相关装置 |
Country Status (3)
Country | Link |
---|---|
US (10) | US7447290B2 (zh) |
CN (10) | CN1271618C (zh) |
TW (10) | TWI258137B (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN100380473C (zh) * | 2004-12-10 | 2008-04-09 | 株式会社东芝 | 光盘装置和倾斜控制方法 |
CN101428574B (zh) * | 2007-11-07 | 2011-07-20 | 丰田纺织株式会社 | 用于锁定车辆座椅的装饰材料的钩构件及车辆座椅 |
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Cited By (2)
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CN100380473C (zh) * | 2004-12-10 | 2008-04-09 | 株式会社东芝 | 光盘装置和倾斜控制方法 |
CN101428574B (zh) * | 2007-11-07 | 2011-07-20 | 丰田纺织株式会社 | 用于锁定车辆座椅的装饰材料的钩构件及车辆座椅 |
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