CN1346127A - 磁盘装置的控制装置、方法、记录媒体及检查方法和装置 - Google Patents
磁盘装置的控制装置、方法、记录媒体及检查方法和装置 Download PDFInfo
- Publication number
- CN1346127A CN1346127A CN00137469A CN00137469A CN1346127A CN 1346127 A CN1346127 A CN 1346127A CN 00137469 A CN00137469 A CN 00137469A CN 00137469 A CN00137469 A CN 00137469A CN 1346127 A CN1346127 A CN 1346127A
- Authority
- CN
- China
- Prior art keywords
- gain
- infer
- disk
- estimation error
- disk set
- 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
- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000006185 dispersion Substances 0.000 claims description 25
- 238000005259 measurement Methods 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 9
- 238000007689 inspection Methods 0.000 claims description 8
- 238000004590 computer program Methods 0.000 claims description 2
- 238000007792 addition Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 230000011664 signaling Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- G11B5/59611—Detection or processing of peak/envelop signals
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
- Moving Of Head For Track Selection And Changing (AREA)
Abstract
Description
Claims (17)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000303355A JP2002117636A (ja) | 2000-10-03 | 2000-10-03 | 磁気ディスク装置の制御装置、方法、記録媒体及び磁気ディスク装置の検査方法、装置 |
JP303355/2000 | 2000-10-03 | ||
JP303355/00 | 2000-10-03 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004100567530A Division CN1316452C (zh) | 2000-10-03 | 2000-12-21 | 磁盘装置的检查方法和装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1346127A true CN1346127A (zh) | 2002-04-24 |
CN1186779C CN1186779C (zh) | 2005-01-26 |
Family
ID=18784563
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB001374699A Expired - Fee Related CN1186779C (zh) | 2000-10-03 | 2000-12-21 | 磁盘装置的控制装置和方法 |
CNB2004100567530A Expired - Fee Related CN1316452C (zh) | 2000-10-03 | 2000-12-21 | 磁盘装置的检查方法和装置 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004100567530A Expired - Fee Related CN1316452C (zh) | 2000-10-03 | 2000-12-21 | 磁盘装置的检查方法和装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6603616B2 (zh) |
JP (1) | JP2002117636A (zh) |
KR (1) | KR100552542B1 (zh) |
CN (2) | CN1186779C (zh) |
SG (1) | SG97985A1 (zh) |
TW (1) | TW501102B (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1326118C (zh) * | 2004-02-25 | 2007-07-11 | 株式会社东芝 | 伺服模式写入方法 |
CN103117075A (zh) * | 2012-12-27 | 2013-05-22 | 华为技术有限公司 | 磁盘块检查方法及装置 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100459719B1 (ko) * | 2002-08-28 | 2004-12-03 | 삼성전자주식회사 | 하드 디스크 드라이브의 자기기록폭 측정 방법 |
KR100555523B1 (ko) | 2003-10-31 | 2006-03-03 | 삼성전자주식회사 | 디스크 드라이브의 트랙 탐색 서보 제어 방법 및 장치 |
KR100604927B1 (ko) | 2005-01-13 | 2006-07-28 | 삼성전자주식회사 | 하드디스크 드라이브의 tpi 결정 방법 및 이에 적합한기록 매체 |
KR100712514B1 (ko) * | 2005-06-29 | 2007-05-02 | 삼성전자주식회사 | 하드디스크 드라이브의 rro 산출 방법, 이를 이용한rro 보상값 산출 방법, 그리고 이에 적합한 기록매체들 |
US9064526B1 (en) | 2014-05-08 | 2015-06-23 | Kabushiki Kaisha Toshiba | Magnetic disk apparatus and off-track detection method |
US10008229B2 (en) * | 2016-01-05 | 2018-06-26 | Western Digital Technologies, Inc | Implementing enhanced track following during read back using head asymmetry metrics in hard disk drives |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07201146A (ja) * | 1993-12-28 | 1995-08-04 | Toshiba Corp | 磁気ディスク装置のヘッド位置決め制御装置とヘッド位置決め制御方法 |
DE69625192D1 (de) * | 1996-08-07 | 2003-01-16 | St Microelectronics Srl | Präzisionsservodemodulator |
JPH1083639A (ja) * | 1996-09-10 | 1998-03-31 | Hitachi Ltd | 磁気ディスク装置 |
US5825318A (en) * | 1996-12-19 | 1998-10-20 | Quantum Corporation | Data and servo sampling in synchronous data detection channel |
JPH10255415A (ja) * | 1997-03-06 | 1998-09-25 | Fujitsu Ltd | ヘッド位置検出方法及びディスク装置 |
US5914594A (en) * | 1997-03-18 | 1999-06-22 | Samsung Electronics, Ltd. | Method for characterizing a read head based on write-induced magnetic read center shifts and read sensitivity changes in the read head |
US5909661A (en) * | 1997-05-30 | 1999-06-01 | Hewlett-Packard Company | Method and apparatus for decomposing drive error signal noise sources |
JP2000260138A (ja) * | 1999-03-09 | 2000-09-22 | Matsushita Electric Ind Co Ltd | データ記録再生装置、ヘッド位置認識方法、及びヘッド位置算出方法 |
-
2000
- 2000-10-03 JP JP2000303355A patent/JP2002117636A/ja active Pending
- 2000-11-28 SG SG200006868A patent/SG97985A1/en unknown
- 2000-12-06 TW TW089126010A patent/TW501102B/zh not_active IP Right Cessation
- 2000-12-21 CN CNB001374699A patent/CN1186779C/zh not_active Expired - Fee Related
- 2000-12-21 US US09/742,505 patent/US6603616B2/en not_active Expired - Fee Related
- 2000-12-21 CN CNB2004100567530A patent/CN1316452C/zh not_active Expired - Fee Related
- 2000-12-22 KR KR1020000080124A patent/KR100552542B1/ko not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1326118C (zh) * | 2004-02-25 | 2007-07-11 | 株式会社东芝 | 伺服模式写入方法 |
CN103117075A (zh) * | 2012-12-27 | 2013-05-22 | 华为技术有限公司 | 磁盘块检查方法及装置 |
CN103117075B (zh) * | 2012-12-27 | 2015-08-26 | 华为技术有限公司 | 磁盘块检查方法及装置 |
Also Published As
Publication number | Publication date |
---|---|
CN1316452C (zh) | 2007-05-16 |
US20020057518A1 (en) | 2002-05-16 |
SG97985A1 (en) | 2003-08-20 |
KR100552542B1 (ko) | 2006-02-14 |
CN1577502A (zh) | 2005-02-09 |
JP2002117636A (ja) | 2002-04-19 |
US6603616B2 (en) | 2003-08-05 |
TW501102B (en) | 2002-09-01 |
CN1186779C (zh) | 2005-01-26 |
KR20020026783A (ko) | 2002-04-12 |
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C14 | Grant of patent or utility model | ||
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Owner name: PANASONIC HEALTHCARE + MEDICAL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: MATSUSHITA ELECTRIC INDUSTRIAL CO, LTD. Effective date: 20140526 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20140526 Address after: Ehime Prefecture, Japan Patentee after: Panasonic Healthcare Co., Ltd Address before: Osaka Japan Patentee before: Matsushita Electric Industrial Co., Ltd. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050126 Termination date: 20141221 |
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EXPY | Termination of patent right or utility model |