JP2020107375A5 - - Google Patents
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- JP2020107375A5 JP2020107375A5 JP2018244893A JP2018244893A JP2020107375A5 JP 2020107375 A5 JP2020107375 A5 JP 2020107375A5 JP 2018244893 A JP2018244893 A JP 2018244893A JP 2018244893 A JP2018244893 A JP 2018244893A JP 2020107375 A5 JP2020107375 A5 JP 2020107375A5
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- JP
- Japan
- Prior art keywords
- head
- signal
- magnitude
- read
- lead
- 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.)
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- 230000007423 decrease Effects 0.000 claims 2
- 238000003672 processing method Methods 0.000 claims 2
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018244893A JP7166165B2 (ja) | 2018-12-27 | 2018-12-27 | 磁気ディスク装置及びリード処理方法 |
| CN201910608555.7A CN111383665B (zh) | 2018-12-27 | 2019-07-08 | 磁盘装置以及读处理方法 |
| US16/560,438 US10872630B2 (en) | 2018-12-27 | 2019-09-04 | Two-dimensional magnetic recording device capable of positioning the head based on reading of first and second readers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018244893A JP7166165B2 (ja) | 2018-12-27 | 2018-12-27 | 磁気ディスク装置及びリード処理方法 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2020107375A JP2020107375A (ja) | 2020-07-09 |
| JP2020107375A5 true JP2020107375A5 (enExample) | 2021-10-07 |
| JP7166165B2 JP7166165B2 (ja) | 2022-11-07 |
Family
ID=71123256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018244893A Active JP7166165B2 (ja) | 2018-12-27 | 2018-12-27 | 磁気ディスク装置及びリード処理方法 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US10872630B2 (enExample) |
| JP (1) | JP7166165B2 (enExample) |
| CN (1) | CN111383665B (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11942122B1 (en) | 2023-01-17 | 2024-03-26 | Kabushiki Kaisha Toshiba | Determining absolute position on HDD spiral patterns using dual TDMR readers |
Family Cites Families (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55135332A (en) * | 1979-04-06 | 1980-10-22 | Toshiba Corp | Track deviation detector |
| JP3588149B2 (ja) * | 1994-11-08 | 2004-11-10 | 富士通株式会社 | 記録再生装置及びこれに使用されるヘッド |
| US6266205B1 (en) | 1998-03-10 | 2001-07-24 | Maxtor Corporation | Parallel servo with ultra high bandwidth off-track detection |
| JP2002216443A (ja) | 2000-11-17 | 2002-08-02 | Hitachi Ltd | 磁気ディスク装置及びその制御方法 |
| JP2005004924A (ja) | 2003-06-13 | 2005-01-06 | Hitachi Ltd | 情報再生方法及び情報再生装置 |
| JP2008165918A (ja) | 2006-12-28 | 2008-07-17 | Fujitsu Ltd | サーボパターン書き込み装置、サーボパターン書き込み方法、サーボパターン読み取り装置、サーボパターン読み取り方法 |
| SG196730A1 (en) * | 2012-07-16 | 2014-02-13 | Agency Science Tech & Res | Methods for reading data from a storage medium using a reader and storage devices |
| JP2014089780A (ja) * | 2012-10-30 | 2014-05-15 | Toshiba Corp | 情報記録装置および情報記録方法 |
| WO2015009718A1 (en) * | 2013-07-16 | 2015-01-22 | Marvell World Trade Ltd. | Systems and methods for calibrating read and write operations in two dimensional magnetic recording |
| US9672850B2 (en) * | 2014-02-25 | 2017-06-06 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Systems and methods for synchronization hand shaking in a storage device |
| US9245556B2 (en) | 2014-03-10 | 2016-01-26 | Western Digital Technologies, Inc. | Disk drive employing multiple read elements to increase radial band for two-dimensional magnetic recording |
| US8902536B1 (en) * | 2014-04-01 | 2014-12-02 | Lsi Corporation | Skew-tolerant reader configurations using cross-track profiles for array-reader based magnetic recording |
| US8861111B1 (en) * | 2014-04-01 | 2014-10-14 | Lsi Corporation | Two dimensional magnetic recording servo system phase alignment |
| US9019642B1 (en) * | 2014-04-02 | 2015-04-28 | Lsi Corporation | Synchronization mark detection for multi-dimensional magnetic recording |
| JP6121938B2 (ja) * | 2014-04-07 | 2017-04-26 | 株式会社東芝 | 磁気ディスク装置および読み出し制御方法 |
| US8837068B1 (en) * | 2014-04-14 | 2014-09-16 | Lsi Corporation | Two dimensional magnetic recording servo system adaptive combination |
| US9792939B2 (en) * | 2014-05-13 | 2017-10-17 | Seagate Technology Llc | Servo tracking using a single servo writing pass per track for multi sensors |
| US8953276B1 (en) * | 2014-06-05 | 2015-02-10 | Seagate Technology Llc | Correcting position error based on reading first and second user data signals |
| US9087541B1 (en) * | 2014-06-05 | 2015-07-21 | Seagate Technology Llc | Processing servo data from two or more read transducers co-located on a slider |
| US9196298B1 (en) * | 2014-06-30 | 2015-11-24 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Zero phase start for array reader magnetic recording system |
| WO2016010902A1 (en) * | 2014-07-14 | 2016-01-21 | Marvell World Trade Ltd. | Method and apparatus for determining read-head deviation using orthogonal preambles |
| US9672853B1 (en) | 2015-06-01 | 2017-06-06 | Marvell International Ltd. | Digital data driven position error signal for magnetic recording |
| CN106816160B (zh) * | 2015-11-30 | 2019-04-05 | 株式会社东芝 | 磁盘装置及其控制方法 |
| US9875758B1 (en) * | 2016-10-12 | 2018-01-23 | Seagate Technology Llc | Slider utilizing multiple transducer sets |
| US9837106B1 (en) * | 2017-06-05 | 2017-12-05 | Western Digital Technologies, Inc. | Two-dimensional magnetic recording (TDMR) disk drive with multiple sensors and circuitry for selection of an active pair of associated amplifiers |
| JP6813474B2 (ja) * | 2017-12-26 | 2021-01-13 | 株式会社東芝 | 磁気ディスク装置及びリード/ライトオフセット補正方法 |
| US10529376B1 (en) * | 2018-01-12 | 2020-01-07 | Marvel International Ltd. | Two dimensional magnetic recording (TDMR) off-track performance improvement |
| US10360930B1 (en) * | 2018-01-26 | 2019-07-23 | Kabushiki Kaisha Toshiba | Disk device and method of manufacturing disk device |
| JP2019160377A (ja) * | 2018-03-15 | 2019-09-19 | 株式会社東芝 | 磁気ディスク装置及びヘッド位置の補正方法 |
-
2018
- 2018-12-27 JP JP2018244893A patent/JP7166165B2/ja active Active
-
2019
- 2019-07-08 CN CN201910608555.7A patent/CN111383665B/zh active Active
- 2019-09-04 US US16/560,438 patent/US10872630B2/en active Active
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