CN1064168C - 用于相位调制伺服定位的方法和设备 - Google Patents
用于相位调制伺服定位的方法和设备 Download PDFInfo
- Publication number
- CN1064168C CN1064168C CN94115592A CN94115592A CN1064168C CN 1064168 C CN1064168 C CN 1064168C CN 94115592 A CN94115592 A CN 94115592A CN 94115592 A CN94115592 A CN 94115592A CN 1064168 C CN1064168 C CN 1064168C
- Authority
- CN
- China
- Prior art keywords
- servo
- phase
- signal
- gain
- predetermined
- 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
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 5
- 238000013500 data storage Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000007704 transition Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/16—Digital recording or reproducing using non self-clocking codes, i.e. the clock signals are either recorded in a separate clocking track or in a combination of several information tracks
-
- 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
- G11B5/59605—Circuits
- G11B5/59622—Gain control; Filters
-
- 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
- G11B5/59683—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 for magnetoresistive heads
-
- 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
- G11B5/59688—Servo signal format patterns or signal processing thereof, e.g. dual, tri, quad, burst signal patterns
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
- Radar Systems Or Details Thereof (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Position Or Direction (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Automatic Tape Cassette Changers (AREA)
Abstract
Description
Claims (10)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12595993A | 1993-09-23 | 1993-09-23 | |
| US125959 | 1993-09-23 | ||
| US125,959 | 1993-09-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1110824A CN1110824A (zh) | 1995-10-25 |
| CN1064168C true CN1064168C (zh) | 2001-04-04 |
Family
ID=22422253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94115592A Expired - Fee Related CN1064168C (zh) | 1993-09-23 | 1994-08-30 | 用于相位调制伺服定位的方法和设备 |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US6426844B1 (zh) |
| EP (1) | EP0645764B1 (zh) |
| JP (1) | JPH07169032A (zh) |
| KR (1) | KR100191903B1 (zh) |
| CN (1) | CN1064168C (zh) |
| AT (1) | ATE197852T1 (zh) |
| BR (1) | BR9403557A (zh) |
| CA (1) | CA2127971C (zh) |
| DE (1) | DE69426345T2 (zh) |
| ES (1) | ES2152972T3 (zh) |
| MY (1) | MY113278A (zh) |
| SG (1) | SG47385A1 (zh) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2635942B2 (ja) * | 1994-02-10 | 1997-07-30 | インターナショナル・ビジネス・マシーンズ・コーポレイション | 直接アクセス記憶装置のサーボ位置決めの方法及び装置 |
| JP3670440B2 (ja) * | 1997-05-20 | 2005-07-13 | 富士通株式会社 | ディスク上の位置検出方法及びディスク装置並びにディスク |
| US6961203B1 (en) * | 2001-03-06 | 2005-11-01 | Maxtor Corporation | Hybrid printed servo patterns for magnetic media and hard disk systems implementing same |
| JP2002373411A (ja) * | 2001-06-15 | 2002-12-26 | Fuji Photo Film Co Ltd | 磁気記録媒体およびその駆動装置 |
| JP4148951B2 (ja) | 2005-01-12 | 2008-09-10 | 株式会社東芝 | 磁気記録再生装置 |
| JP2006221773A (ja) * | 2005-02-14 | 2006-08-24 | Fuji Photo Film Co Ltd | 円盤状磁気記録媒体 |
| US7209314B2 (en) * | 2005-06-09 | 2007-04-24 | Hitachi Global Storage Technologies Netherlands B.V. | Disk drive with phase-quadrature servo pattern and demodulated position error signal insensitive to timing and phase-misalignment errors |
| KR100771881B1 (ko) * | 2006-08-23 | 2007-11-01 | 삼성전자주식회사 | 디스크 회전 슬립에 따른 데이터 섹터 위상 보정 방법 및이를 이용한 디스크 드라이브 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5693119A (en) * | 1979-12-25 | 1981-07-28 | Nec Corp | Servo system for magnetic disk device |
| EP0129708A1 (en) * | 1983-06-27 | 1985-01-02 | International Business Machines Corporation | Phase modulated servo system for a disk file |
| JPH04307481A (ja) * | 1991-04-04 | 1992-10-29 | Sony Corp | 磁気ディスクおよびその駆動装置 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56145568A (en) * | 1980-04-15 | 1981-11-12 | Mitsubishi Electric Corp | Head positioning system |
| JPS60129708A (ja) | 1983-12-16 | 1985-07-11 | Matsushita Electric Ind Co Ltd | 偏光板 |
| US4598327A (en) * | 1985-06-28 | 1986-07-01 | International Business Machines Corporation | Servo control system using servo pattern time of flight for read/write head positioning in a magnetic recording system |
| JPS62175924A (ja) * | 1986-01-28 | 1987-08-01 | Fujitsu Ltd | オフトラツク補償方式 |
| JPS6398820A (ja) * | 1986-10-15 | 1988-04-30 | Sony Corp | 磁気デイスクの記録方式 |
| US5119248A (en) | 1987-10-30 | 1992-06-02 | Brier Technology, Inc. | Method of recording servo signals |
| JPH01220101A (ja) | 1988-02-29 | 1989-09-01 | Hitachi Maxell Ltd | 移動マルチトラツクヘツド型情報記録装置 |
| US5055951A (en) | 1989-03-10 | 1991-10-08 | Irwin Magnetic Systems, Inc. | Method and apparatus for servo-positioning movable transducer heads |
| US5185681A (en) | 1990-09-28 | 1993-02-09 | Seagate | Thermal offset compensation for high density disk drives |
| JPH04252415A (ja) * | 1991-01-28 | 1992-09-08 | Matsushita Electric Ind Co Ltd | 磁気ディスクおよび磁気ディスク装置 |
| JPH05242435A (ja) * | 1992-02-27 | 1993-09-21 | Hitachi Ltd | 磁気ディスク装置およびヘッド |
-
1994
- 1994-07-13 CA CA002127971A patent/CA2127971C/en not_active Expired - Fee Related
- 1994-08-29 MY MYPI94002268A patent/MY113278A/en unknown
- 1994-08-30 KR KR1019940021533A patent/KR100191903B1/ko not_active Expired - Fee Related
- 1994-08-30 CN CN94115592A patent/CN1064168C/zh not_active Expired - Fee Related
- 1994-08-31 JP JP6206191A patent/JPH07169032A/ja active Pending
- 1994-09-06 EP EP94480084A patent/EP0645764B1/en not_active Expired - Lifetime
- 1994-09-06 DE DE69426345T patent/DE69426345T2/de not_active Expired - Fee Related
- 1994-09-06 ES ES94480084T patent/ES2152972T3/es not_active Expired - Lifetime
- 1994-09-06 AT AT94480084T patent/ATE197852T1/de not_active IP Right Cessation
- 1994-09-06 SG SG1996000355A patent/SG47385A1/en unknown
- 1994-09-14 BR BR9403557A patent/BR9403557A/pt not_active IP Right Cessation
-
1995
- 1995-09-11 US US08/526,197 patent/US6426844B1/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5693119A (en) * | 1979-12-25 | 1981-07-28 | Nec Corp | Servo system for magnetic disk device |
| EP0129708A1 (en) * | 1983-06-27 | 1985-01-02 | International Business Machines Corporation | Phase modulated servo system for a disk file |
| JPH04307481A (ja) * | 1991-04-04 | 1992-10-29 | Sony Corp | 磁気ディスクおよびその駆動装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0645764A2 (en) | 1995-03-29 |
| MY113278A (en) | 2002-01-31 |
| ES2152972T3 (es) | 2001-02-16 |
| EP0645764B1 (en) | 2000-11-29 |
| ATE197852T1 (de) | 2000-12-15 |
| US6426844B1 (en) | 2002-07-30 |
| CA2127971C (en) | 1999-01-12 |
| KR950009677A (ko) | 1995-04-24 |
| DE69426345T2 (de) | 2001-05-17 |
| EP0645764A3 (en) | 1996-09-11 |
| CN1110824A (zh) | 1995-10-25 |
| KR100191903B1 (ko) | 1999-06-15 |
| BR9403557A (pt) | 1995-06-20 |
| SG47385A1 (en) | 1998-04-17 |
| JPH07169032A (ja) | 1995-07-04 |
| DE69426345D1 (de) | 2001-01-04 |
| CA2127971A1 (en) | 1995-03-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HITACHI GST Free format text: FORMER OWNER: INTERNATIONAL BUSINESS MACHINE CORP. Effective date: 20040109 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20040109 Address after: Amsterdam Patentee after: Hitachi Global Storage Tech Address before: American New York Patentee before: International Business Machines Corp. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010404 Termination date: 20090930 |