CN101458939A - 光盘装置 - Google Patents
光盘装置 Download PDFInfo
- Publication number
- CN101458939A CN101458939A CNA2008101742395A CN200810174239A CN101458939A CN 101458939 A CN101458939 A CN 101458939A CN A2008101742395 A CNA2008101742395 A CN A2008101742395A CN 200810174239 A CN200810174239 A CN 200810174239A CN 101458939 A CN101458939 A CN 101458939A
- Authority
- CN
- China
- Prior art keywords
- servo
- unit
- signal
- filter characteristic
- optical disc
- 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
Links
Images
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
- G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
-
- 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
- G11B7/0946—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 operation during external perturbations not related to the carrier or servo beam, e.g. vibration
Abstract
Description
Claims (10)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-321487 | 2007-12-13 | ||
JP2007321487 | 2007-12-13 | ||
JP2007321487A JP2009146491A (ja) | 2007-12-13 | 2007-12-13 | 光ディスク装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101458939A true CN101458939A (zh) | 2009-06-17 |
CN101458939B CN101458939B (zh) | 2011-07-27 |
Family
ID=40753069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2008101742395A Expired - Fee Related CN101458939B (zh) | 2007-12-13 | 2008-11-14 | 光盘装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7969833B2 (zh) |
JP (1) | JP2009146491A (zh) |
CN (1) | CN101458939B (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009146491A (ja) * | 2007-12-13 | 2009-07-02 | Hitachi Ltd | 光ディスク装置 |
JP2010160848A (ja) * | 2009-01-08 | 2010-07-22 | Hitachi Ltd | 光ディスク装置 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03136101A (ja) * | 1989-10-23 | 1991-06-10 | Olympus Optical Co Ltd | デジタルサーボ装置 |
JP3536455B2 (ja) | 1995-08-04 | 2004-06-07 | 三菱電機株式会社 | 繰り返し補償器およびこの繰り返し補償器を備えたディスク装置 |
JPH10208418A (ja) * | 1997-01-17 | 1998-08-07 | Alps Electric Co Ltd | トラック追従制御装置 |
JP3544847B2 (ja) * | 1998-01-16 | 2004-07-21 | 三菱電機株式会社 | 光学的情報再生方法および装置 |
WO2000068939A1 (en) * | 1999-05-07 | 2000-11-16 | Seagate Technology Llc | Repeatable runout compensation using iterative learning control in a disc storage system |
JP2003505818A (ja) * | 1999-07-23 | 2003-02-12 | シーゲイト テクノロジー エルエルシー | パラメータがスケジュールされている学習アルゴリズムを使用した再現可能なランナウト補正 |
US6819521B2 (en) * | 2000-06-09 | 2004-11-16 | Seagate Technology Llc | Repeated runout position error compensation in a disc drive servo system |
KR100677097B1 (ko) * | 2000-08-26 | 2007-02-05 | 삼성전자주식회사 | 광 기록/재생 장치에서 학습 제어를 이용한 외란 보상장치 및 방법과, 그를 이용한 광 기록 매체 드라이브 서보시스템 |
US6622117B2 (en) * | 2001-05-14 | 2003-09-16 | International Business Machines Corporation | EM algorithm for convolutive independent component analysis (CICA) |
CN1400586A (zh) * | 2001-07-26 | 2003-03-05 | 迪维安公司 | 用于增进可刻录光盘刻录优良率的方法及装置 |
JP4160284B2 (ja) * | 2001-09-12 | 2008-10-01 | 松下電器産業株式会社 | 光デイスク装置及びフォーカス制御方法 |
JP2003249045A (ja) | 2002-02-27 | 2003-09-05 | Hitachi Ltd | ディスク装置 |
JP4081018B2 (ja) * | 2002-03-11 | 2008-04-23 | 松下電器産業株式会社 | 信号処理装置および信号処理方法 |
ATE396439T1 (de) * | 2002-12-18 | 2008-06-15 | Koninkl Philips Electronics Nv | Wiederholsteuerung und servoantriebssystem damit |
JP4263591B2 (ja) * | 2003-12-11 | 2009-05-13 | 株式会社日立エルジーデータストレージ | 光ディスク装置及びそのディスク記録再生方法 |
WO2006109557A1 (ja) * | 2005-04-06 | 2006-10-19 | Sony Corporation | サーボ制御装置及びサーボ制御方法、並びにディスク記録又は再生装置 |
JP2007207390A (ja) | 2006-02-06 | 2007-08-16 | Hitachi Ltd | 光ディスク装置及び試し書き方法 |
JP2008310913A (ja) * | 2007-06-18 | 2008-12-25 | Hitachi Ltd | 光ディスク装置 |
JP2009146491A (ja) * | 2007-12-13 | 2009-07-02 | Hitachi Ltd | 光ディスク装置 |
US7626782B1 (en) * | 2008-07-23 | 2009-12-01 | Western Digital Technologies, Inc. | Disk drive employing iterative learning control for tuning seek servo loop |
-
2007
- 2007-12-13 JP JP2007321487A patent/JP2009146491A/ja active Pending
-
2008
- 2008-11-14 CN CN2008101742395A patent/CN101458939B/zh not_active Expired - Fee Related
- 2008-12-12 US US12/333,554 patent/US7969833B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2009146491A (ja) | 2009-07-02 |
US20090154313A1 (en) | 2009-06-18 |
CN101458939B (zh) | 2011-07-27 |
US7969833B2 (en) | 2011-06-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: HITACHI LTD. Free format text: FORMER OWNER: HITACHI,LTD. Effective date: 20140116 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20140116 Address after: Tokyo, Japan Patentee after: Hitachi Consumer Electronics Co.,Ltd. Patentee after: Hitachi LG Data Storage Inc. Address before: Tokyo, Japan Patentee before: Hitachi Manufacturing Co., Ltd. Patentee before: Hitachi LG Data Storage Inc. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20151114 |
|
EXPY | Termination of patent right or utility model |