CN1069771C - 磁记录/再现装置及其控制方法 - Google Patents
磁记录/再现装置及其控制方法 Download PDFInfo
- Publication number
- CN1069771C CN1069771C CN95103514A CN95103514A CN1069771C CN 1069771 C CN1069771 C CN 1069771C CN 95103514 A CN95103514 A CN 95103514A CN 95103514 A CN95103514 A CN 95103514A CN 1069771 C CN1069771 C CN 1069771C
- Authority
- CN
- China
- Prior art keywords
- magnetic head
- magnetic
- servo
- transcriber
- magnetic recording
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 28
- 230000000694 effects Effects 0.000 claims abstract description 25
- 230000009471 action Effects 0.000 claims description 31
- 238000006243 chemical reaction Methods 0.000 claims 2
- 238000005516 engineering process Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000005070 sampling Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 3
- 239000000700 radioactive tracer Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
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
- G11B5/54—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 into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
- G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
- G11B5/553—Details
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
-
- 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
- G11B5/40—Protective measures on heads, e.g. against excessive temperature
-
- 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
- G11B5/54—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 into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5504—Track change, selection or acquisition by displacement of the head across tape tracks
- G11B5/5508—Control circuits therefor
-
- 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
- G11B5/54—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 into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
- G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
- G11B5/553—Details
- G11B5/5547—"Seek" control and circuits therefor
-
- 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
- G11B5/584—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 tapes
-
- 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
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0005—Arrangements, methods or circuits
- G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
- G11B2005/0013—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation
- G11B2005/0016—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation of magnetoresistive transducers
- G11B2005/0018—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation of magnetoresistive transducers by current biasing control or regulation
Landscapes
- Magnetic Heads (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
Description
Claims (8)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP048350/1994 | 1994-03-18 | ||
JP06048350A JP3134657B2 (ja) | 1994-03-18 | 1994-03-18 | 磁気ディスク装置 |
JP048350/94 | 1994-03-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1115069A CN1115069A (zh) | 1996-01-17 |
CN1069771C true CN1069771C (zh) | 2001-08-15 |
Family
ID=12800933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN95103514A Expired - Lifetime CN1069771C (zh) | 1994-03-18 | 1995-03-17 | 磁记录/再现装置及其控制方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5606470A (zh) |
EP (2) | EP0673032B1 (zh) |
JP (1) | JP3134657B2 (zh) |
CN (1) | CN1069771C (zh) |
DE (2) | DE69533207T2 (zh) |
PH (1) | PH31527A (zh) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5793550A (en) * | 1996-04-23 | 1998-08-11 | Read-Rite Corporation | Magnetoresistive head using sense currents of opposite polarities |
JP3117658B2 (ja) * | 1997-03-19 | 2000-12-18 | 富士通株式会社 | Mrヘッドを備えた磁気再生装置 |
US6385000B1 (en) * | 1998-08-21 | 2002-05-07 | International Business Machines Corporation | System and method for extending the operating life of a magnetoresistive transducer provided in a disk drive system |
US6455280B1 (en) | 1998-12-22 | 2002-09-24 | Genset S.A. | Methods and compositions for inhibiting neoplastic cell growth |
US6574061B1 (en) | 1999-08-27 | 2003-06-03 | Seagate Technology Llc | Method and apparatus for run-time temperature compensation of giant magnetoresistive head bias current |
JP2001067765A (ja) | 1999-08-31 | 2001-03-16 | Hitachi Ltd | 磁気ディスク装置及びその制御方法 |
JP4337317B2 (ja) * | 2002-09-06 | 2009-09-30 | ソニー株式会社 | 情報処理装置、およびプログラム |
JP2005157622A (ja) * | 2003-11-25 | 2005-06-16 | Hitachi Ltd | アイドルシークのためのディスクアレイ装置 |
JP2005346816A (ja) * | 2004-06-02 | 2005-12-15 | Hitachi Global Storage Technologies Netherlands Bv | データ記憶装置及びその制御方法 |
JP2008243293A (ja) | 2007-03-27 | 2008-10-09 | Toshiba Corp | プローブメモリを備える記録再生装置 |
US7963023B2 (en) * | 2007-11-16 | 2011-06-21 | Oracle America, Inc. | Process for accurately machining a magnetic tape head |
US11341989B2 (en) * | 2020-09-30 | 2022-05-24 | Seagate Technology Llc | Read head stress reduction |
US11386921B2 (en) | 2020-09-30 | 2022-07-12 | Seagate Technology Llc | Read head stress reduction |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0361786A2 (en) * | 1988-09-26 | 1990-04-04 | International Business Machines Corporation | Disk file digita servo control |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4589036A (en) * | 1984-12-03 | 1986-05-13 | International Business Machines Corporation | Apparatus and method for instrumented radial translation of a read/write transducer at start-up of a rotating disk file |
JPH02131348A (ja) * | 1988-11-08 | 1990-05-21 | Fujitsu Ltd | 光ディスク装置用ボイスコイルモータ |
US5345347A (en) * | 1992-02-18 | 1994-09-06 | Western Digital Corporation | Disk drive with reduced power modes |
JPH05226850A (ja) | 1992-02-18 | 1993-09-03 | Fujitsu Ltd | 携帯用機器の装丁体 |
US5408369A (en) * | 1992-04-23 | 1995-04-18 | Teac Corporation | Power saving system for rotating disk data storage apparatus |
JP2671780B2 (ja) * | 1993-01-07 | 1997-10-29 | 日本電気株式会社 | 記録再生分離型磁気ディスク装置用サーボ装置並びにディスク装置におけるアクチュエータ力定数推定方法及び補償方法 |
US5381279A (en) * | 1993-10-13 | 1995-01-10 | Maxtor Corporation | Disk drive system with adjustable spindle and actuator power to improve seek and access performance |
-
1994
- 1994-03-18 JP JP06048350A patent/JP3134657B2/ja not_active Expired - Lifetime
-
1995
- 1995-03-02 US US08/397,522 patent/US5606470A/en not_active Expired - Lifetime
- 1995-03-15 DE DE69533207T patent/DE69533207T2/de not_active Expired - Fee Related
- 1995-03-15 EP EP95103756A patent/EP0673032B1/en not_active Expired - Lifetime
- 1995-03-15 DE DE69517224T patent/DE69517224T2/de not_active Expired - Fee Related
- 1995-03-15 EP EP99120017A patent/EP0978824B1/en not_active Expired - Lifetime
- 1995-03-17 PH PH50147A patent/PH31527A/en unknown
- 1995-03-17 CN CN95103514A patent/CN1069771C/zh not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0361786A2 (en) * | 1988-09-26 | 1990-04-04 | International Business Machines Corporation | Disk file digita servo control |
Also Published As
Publication number | Publication date |
---|---|
DE69517224D1 (de) | 2000-07-06 |
CN1115069A (zh) | 1996-01-17 |
EP0673032A3 (en) | 1997-11-05 |
DE69517224T2 (de) | 2001-02-22 |
DE69533207T2 (de) | 2005-06-30 |
EP0673032B1 (en) | 2000-05-31 |
EP0673032A2 (en) | 1995-09-20 |
JP3134657B2 (ja) | 2001-02-13 |
EP0978824A2 (en) | 2000-02-09 |
EP0978824B1 (en) | 2004-06-23 |
JPH07262539A (ja) | 1995-10-13 |
US5606470A (en) | 1997-02-25 |
PH31527A (en) | 1998-11-03 |
EP0978824A3 (en) | 2000-03-29 |
DE69533207D1 (de) | 2004-07-29 |
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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 GLOBAL STORAGE TECHNOLOGIES JAPAN LTD. Free format text: FORMER OWNER: HITACHI CO., LTD. Effective date: 20031230 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20031230 Address after: Kanagawa, Japan Patentee after: Hitachi Global Scinece Technology Jappan Co., Ltd. Address before: Tokyo, Japan Patentee before: Hitachi Ltd. |
|
C17 | Cessation of patent right | ||
CX01 | Expiry of patent term |
Expiration termination date: 20150317 Granted publication date: 20010815 |