DE69125585T2 - Verfahren und Vorrichtung zur Korrektur der Versetzung des Kopfpositioniersignales - Google Patents
Verfahren und Vorrichtung zur Korrektur der Versetzung des KopfpositioniersignalesInfo
- Publication number
- DE69125585T2 DE69125585T2 DE69125585T DE69125585T DE69125585T2 DE 69125585 T2 DE69125585 T2 DE 69125585T2 DE 69125585 T DE69125585 T DE 69125585T DE 69125585 T DE69125585 T DE 69125585T DE 69125585 T2 DE69125585 T2 DE 69125585T2
- Authority
- DE
- Germany
- Prior art keywords
- correcting
- displacement
- positioning signal
- head positioning
- head
- 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.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head 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 on disks
- G11B5/59627—Aligning for runout, eccentricity or offset compensation
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2412640A JP2642518B2 (ja) | 1990-12-21 | 1990-12-21 | 磁気ヘッド位置信号のオフセット補正方式 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69125585D1 DE69125585D1 (de) | 1997-05-15 |
DE69125585T2 true DE69125585T2 (de) | 1997-07-17 |
Family
ID=18521455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69125585T Expired - Fee Related DE69125585T2 (de) | 1990-12-21 | 1991-09-26 | Verfahren und Vorrichtung zur Korrektur der Versetzung des Kopfpositioniersignales |
Country Status (4)
Country | Link |
---|---|
US (1) | US5457587A (de) |
EP (1) | EP0492774B1 (de) |
JP (1) | JP2642518B2 (de) |
DE (1) | DE69125585T2 (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3198490B2 (ja) * | 1993-03-02 | 2001-08-13 | ソニー株式会社 | 偏心量測定装置 |
JP3135447B2 (ja) * | 1994-01-27 | 2001-02-13 | 富士通株式会社 | 磁気ディスクドライブの制御方法及びその装置 |
US5798885A (en) * | 1994-06-06 | 1998-08-25 | Fujitsu Limited | Head positioning control for disk apparatus using peak detection, polarity detection and sector mark detection |
KR0147228B1 (ko) * | 1994-10-27 | 1998-10-15 | 김광호 | 자기 디스크 구동장치에서 오프-트랙을 이용한 트랙 추종 방법 |
KR0124992B1 (ko) * | 1994-11-17 | 1997-11-28 | 김광호 | 디스크 구동 기록장치의 서보제어계 게인 보정 방법 |
KR100269169B1 (ko) * | 1995-08-25 | 2000-10-16 | 윤종용 | 하드 디스크 드라이브에서의 스큐 최적화 방법 |
KR100224918B1 (ko) | 1995-09-06 | 1999-10-15 | 윤종용 | 디스크 기록면들의 트랙오프셋에 의한 헤드간 트랙위치 오프셋 보상장치 및 그 방법 |
JP3257939B2 (ja) * | 1995-11-21 | 2002-02-18 | 富士通株式会社 | ディスク装置及びディスク装置のヘッド位置決め制御方法 |
US5774297A (en) * | 1996-03-26 | 1998-06-30 | Seagate Technology, Inc. | Dynamic compensation of servo burst measurement offsets in a disc drive |
KR100233669B1 (ko) * | 1996-11-01 | 2000-01-15 | 윤종용 | 트랙 쉬프트량 보상을 위한 서보버스트 기록방법및 서보제어방법 |
JP3013892B2 (ja) * | 1997-06-26 | 2000-02-28 | 日本電気株式会社 | ヘッド位置信号復調装置及びこれを利用したヘッド位置決め装置 |
JP2002538569A (ja) * | 1999-02-22 | 2002-11-12 | シーゲイト テクノロジー エルエルシー | 異なるサーボパルス・データ適格化モードを使用したシーク回復 |
US6574068B1 (en) | 1999-04-21 | 2003-06-03 | Seagate Technology Llc | Servo control using continuous position error signal with high order polynomial component |
US6671119B2 (en) | 2000-04-18 | 2003-12-30 | Seagate Technology Llc | Method and apparatus to encode position error signal correction information |
US6760170B2 (en) | 2000-08-15 | 2004-07-06 | Seagate Technology Llc | Servo test method |
DE10196825T5 (de) * | 2000-10-24 | 2004-04-15 | Seagate Technology Llc, Scotts Valley | Schaltung für Self-Writing-Servo- und -Taktfelder auf einem Plattenlaufwerk |
JPWO2002091381A1 (ja) * | 2001-04-27 | 2004-08-26 | 富士通株式会社 | 磁気ディスク装置および高周波振動観測方法 |
KR100529309B1 (ko) * | 2002-10-07 | 2005-11-17 | 삼성전자주식회사 | Dvd 플레이어의 오프셋 조정 장치 및 방법 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5153787A (en) * | 1982-05-10 | 1992-10-06 | Digital Equipment Corporation | Combination embedded and dedicated servo system including embedded servo waiting |
JPS5971171A (ja) * | 1982-10-15 | 1984-04-21 | Fujitsu Ltd | 磁気デイスク装置のオフセツト動作方式 |
FI88973C (fi) * | 1983-11-25 | 1993-07-26 | Mitsubishi Electric Corp | Skivenhet |
US4669003A (en) * | 1986-05-02 | 1987-05-26 | Hewlett-Packard Company | Method and apparatus for eliminating apparent offset in the servo code in a magnetic disc drive |
JPS62279569A (ja) * | 1986-05-28 | 1987-12-04 | Mitsubishi Electric Corp | 磁気デイスク装置 |
US4974109A (en) * | 1986-08-27 | 1990-11-27 | Sony Corporation | Hard disk drive employing a reference track to compensate for tracking error |
JP2612262B2 (ja) * | 1986-12-16 | 1997-05-21 | 富士通株式会社 | 磁気デイスク装置 |
JPS63239659A (ja) * | 1987-03-27 | 1988-10-05 | Nec Corp | オフセツト自動補正回路 |
JPH0821210B2 (ja) * | 1987-07-09 | 1996-03-04 | 日本電気株式会社 | 位置誤差補償方式 |
JPH01176374A (ja) * | 1988-01-05 | 1989-07-12 | Toshiba Corp | 磁気ヘッド位置決め制御装置 |
JPH02220262A (ja) * | 1989-02-20 | 1990-09-03 | Fujitsu Ltd | ディスク装置のヘッド切替方式 |
US5138594A (en) * | 1990-04-20 | 1992-08-11 | International Business Machines Corporation | Reducing amplitude variations of optical disk readback signals and increasing reliability of track-crossing counts |
-
1990
- 1990-12-21 JP JP2412640A patent/JP2642518B2/ja not_active Expired - Fee Related
-
1991
- 1991-09-26 DE DE69125585T patent/DE69125585T2/de not_active Expired - Fee Related
- 1991-09-26 EP EP91308763A patent/EP0492774B1/de not_active Expired - Lifetime
-
1994
- 1994-05-26 US US08/250,111 patent/US5457587A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5457587A (en) | 1995-10-10 |
JP2642518B2 (ja) | 1997-08-20 |
EP0492774A2 (de) | 1992-07-01 |
JPH04221473A (ja) | 1992-08-11 |
DE69125585D1 (de) | 1997-05-15 |
EP0492774A3 (en) | 1993-03-24 |
EP0492774B1 (de) | 1997-04-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |