JP2012169033A5 - - Google Patents
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- JP2012169033A5 JP2012169033A5 JP2012028391A JP2012028391A JP2012169033A5 JP 2012169033 A5 JP2012169033 A5 JP 2012169033A5 JP 2012028391 A JP2012028391 A JP 2012028391A JP 2012028391 A JP2012028391 A JP 2012028391A JP 2012169033 A5 JP2012169033 A5 JP 2012169033A5
- Authority
- JP
- Japan
- Prior art keywords
- read
- transducer head
- sensors
- storage medium
- sensor
- 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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Links
- 238000000034 method Methods 0.000 claims 12
- 238000011144 upstream manufacturing Methods 0.000 claims 2
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/028,915 | 2011-02-16 | ||
| US13/028,915 US8508880B2 (en) | 2011-02-16 | 2011-02-16 | Transducer head with multiple read sensors |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2012169033A JP2012169033A (ja) | 2012-09-06 |
| JP2012169033A5 true JP2012169033A5 (enExample) | 2012-10-18 |
| JP6001270B2 JP6001270B2 (ja) | 2016-10-05 |
Family
ID=45655667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012028391A Expired - Fee Related JP6001270B2 (ja) | 2011-02-16 | 2012-02-13 | 記憶媒体データトラックからの読出信号を検出する方法、およびトランスデューサヘッドを含むシステム |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US8508880B2 (enExample) |
| EP (1) | EP2490219A1 (enExample) |
| JP (1) | JP6001270B2 (enExample) |
| KR (1) | KR101313754B1 (enExample) |
| CN (1) | CN102646420B (enExample) |
Families Citing this family (50)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8508880B2 (en) * | 2011-02-16 | 2013-08-13 | Seagate Technology Llc | Transducer head with multiple read sensors |
| US20120275046A1 (en) * | 2011-04-27 | 2012-11-01 | Toshiba America Information Systems, Inc. | Splitting a data stream between two storage media in a hybrid disk drive |
| US20140063644A1 (en) * | 2012-08-29 | 2014-03-06 | Seagate Technology Llc | Magnetic Element with Multiple Selective Transducing Elements |
| US20140177102A1 (en) | 2012-12-21 | 2014-06-26 | Seagate Technology Llc | Multi-reader method and apparatus |
| US8824106B1 (en) * | 2013-05-18 | 2014-09-02 | Headway Technologies, Inc. | Two sensor reader for hard disk drive (HDD) |
| US9147431B2 (en) * | 2013-08-06 | 2015-09-29 | Seagate Technology Llc | Multi-sensor data transducer |
| US9418684B2 (en) * | 2013-10-04 | 2016-08-16 | Seagate Technology Llc | Magnetic read head with separately addressable read transducers |
| WO2015056055A1 (en) | 2013-10-18 | 2015-04-23 | Freescale Semiconductor, Inc. | A mm-wave frequency peak detector |
| US8953284B1 (en) | 2013-11-20 | 2015-02-10 | HGST Netherlands B.V. | Multi-read sensor having a narrow read gap structure |
| US9082436B1 (en) | 2014-02-05 | 2015-07-14 | HGST Netherlands B.V. | Zig-zag MIMO head reducing space between three sensors |
| US9070406B1 (en) | 2014-03-10 | 2015-06-30 | Western Digital Technologies, Inc. | Disk drive configuring one-dimensional and two-dimensional recording areas based on read element spacing |
| 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 |
| US9305596B2 (en) | 2014-03-28 | 2016-04-05 | Seagate Technology Llc | Multi-sensor media defect scan |
| US9036304B1 (en) | 2014-05-19 | 2015-05-19 | HGST Netherlands B.V. | System and methods utilizing dual read sensors |
| US9053727B1 (en) | 2014-06-02 | 2015-06-09 | Western Digital Technologies, Inc. | Disk drive opening spiral crossing window based on DC and AC spiral track error |
| US9013824B1 (en) | 2014-06-04 | 2015-04-21 | Western Digital Technologies, Inc. | Data storage device comprising dual read sensors and dual servo channels to improve servo demodulation |
| US20160055868A1 (en) * | 2014-08-21 | 2016-02-25 | HGST Netherlands B.V. | Multiple-input-multiple-output sensor designs for magnetic applications |
| US9142246B1 (en) * | 2014-10-10 | 2015-09-22 | Seagate Technology Llc | Apparatus and methods to reduce hard disk drive manufacturing test time |
| US9542962B2 (en) | 2015-01-23 | 2017-01-10 | HGST Netherlands B.V. | Multi-sensor reader structure having a current path with increased size to reduce noise |
| US9269383B1 (en) | 2015-01-23 | 2016-02-23 | HGST Netherlands B.V. | Multi-sensor (MIMO) head having a back side antiferromagnetic middle shield |
| US9373355B1 (en) | 2015-01-30 | 2016-06-21 | Seagate Technology Llc | Compensating for interference via a multi-reader system |
| US9576597B2 (en) * | 2015-03-12 | 2017-02-21 | Seagate Technology Llc | Disk drive sensor selection |
| US9396744B1 (en) | 2015-08-10 | 2016-07-19 | HGST Netherlands B.V. | Two dimensional magnetic read head having asymmetrical secondary read elements |
| US9401162B1 (en) | 2015-08-14 | 2016-07-26 | Seagate Technology Llc | Read sensor with free layers of different widths sandwiching a SAF structure for extremely high resolution |
| US9536549B1 (en) | 2015-08-14 | 2017-01-03 | Seagate Technology Llc | Multiple sensor magnetic reproducing device with reduced inter-sensor spacing |
| US9865301B1 (en) | 2015-12-11 | 2018-01-09 | Seagate Technology Llc | Selectable magnetic writers of different target geometries for reducing performance variance |
| US9830935B1 (en) | 2016-08-10 | 2017-11-28 | Seagate Technology Llc | Read sensor capable of providing multiple effective read widths |
| US9990941B1 (en) | 2016-11-14 | 2018-06-05 | Seagate Technology Llc | Selectable readers for improvements in yield, reliability and performance |
| US10115418B2 (en) | 2016-11-21 | 2018-10-30 | Headway Technologies, Inc. | Hard magnet stabilized shield for double (2DMR) or triple (3DMR) dimension magnetic reader structures |
| US10586562B1 (en) | 2017-01-13 | 2020-03-10 | Seagate Technology Llc | Read head having sensors with conflicting design characteristics |
| 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 |
| US10056108B1 (en) * | 2017-07-05 | 2018-08-21 | Seagate Technology Llc | Determining bit aspect ratios for interlaced magnetic recording tracks |
| US10049690B1 (en) | 2017-08-08 | 2018-08-14 | Seagate Technology Llc | Selectable readers for better performance |
| US9928872B1 (en) | 2017-08-11 | 2018-03-27 | Seagate Technology Llc | Data recovery using a multi-reader head |
| US9972349B1 (en) * | 2017-08-30 | 2018-05-15 | Western Digital Technologies, Inc. | Data storage device with two read elements offset radially by at least one servo track at all radial locations |
| US10037779B1 (en) | 2017-10-31 | 2018-07-31 | Seagate Technology Llc | Read-after-write methodology using multiple actuators moveable over the same magnetic recording disk surface |
| US10600435B2 (en) | 2017-11-15 | 2020-03-24 | Seagate Technology Llc | Recording head gimbal assembly programming by selective application of interconnects |
| US10255943B1 (en) | 2018-05-17 | 2019-04-09 | Seagate Technology Llc | Independent head, dual reader control logic |
| US10818317B1 (en) | 2019-07-02 | 2020-10-27 | Seagate Technology Llc | Multi-actuator data storage system |
| JP2021047944A (ja) | 2019-09-18 | 2021-03-25 | 株式会社東芝 | 磁気ディスク装置 |
| JP7225156B2 (ja) | 2020-03-23 | 2023-02-20 | 株式会社東芝 | 磁気ディスク装置 |
| US11348611B1 (en) | 2021-04-19 | 2022-05-31 | Seagate Technology Llc | Zero skew elevator system |
| US11948612B2 (en) | 2021-04-19 | 2024-04-02 | Seagate Technology Llc | Zero skew elevator system |
| US11361787B1 (en) | 2021-07-30 | 2022-06-14 | Seagate Technology Llc | Zero skew disk drive with dual actuators |
| US11488624B1 (en) | 2021-09-20 | 2022-11-01 | Seagate Technology Llc | Ball bearing cartridge for linear actuator |
| US11468909B1 (en) | 2021-11-02 | 2022-10-11 | Seagate Technology Llc | Zero skew with ultrasonic piezoelectric swing suspension |
| US11430472B1 (en) | 2021-11-17 | 2022-08-30 | Seagate Technology Llc | Triple magnet linear actuator motor |
| JP2024037482A (ja) | 2022-09-07 | 2024-03-19 | 株式会社東芝 | 磁気ディスク装置およびその基準パターン書込方法 |
| US12354629B2 (en) | 2022-10-31 | 2025-07-08 | Western Digital Technologies, Inc. | SOT reader with recessed SOT topological insulator material |
| US12136446B2 (en) | 2022-10-31 | 2024-11-05 | Western Digital Technologies, Inc. | TDMR SOT read heads having recessed topological insulator materials |
Family Cites Families (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4656546A (en) | 1985-01-22 | 1987-04-07 | Digital Equipment Corporation | Vertical magnetic recording arrangement |
| JPH04146504A (ja) * | 1990-10-08 | 1992-05-20 | Nippon Digital Equip Kk | 磁気記録媒体の再生方法および装置 |
| US6021024A (en) | 1992-02-21 | 2000-02-01 | Kabushiki Kaisha Toshiba | Magnetic disk drive having a constant skew angle |
| JPH06103509A (ja) * | 1992-09-21 | 1994-04-15 | Fujitsu Ltd | 磁気デイスク読み取り装置、および薄膜磁気ヘッド |
| US5426539A (en) * | 1992-12-01 | 1995-06-20 | National Semiconductor Corporation | Multiple gap read/write head for data storage devices |
| JPH07302410A (ja) * | 1994-05-10 | 1995-11-14 | Sony Corp | 複合型薄膜磁気ヘッド |
| US6157510A (en) * | 1998-03-10 | 2000-12-05 | Maxtor Corporation | Magnetic storage device with multiple read elements which are offset laterally and longitudinally |
| US6195230B1 (en) * | 1998-04-27 | 2001-02-27 | Intel Corporation | Disk head assembly with multiple read and/or write transducers for improved performance |
| US6381088B1 (en) * | 1998-11-06 | 2002-04-30 | Acorn Technologies, Inc. | Apparatus for developing a dynamic servo signal from data in a magnetic disc drive and method |
| JP2001143218A (ja) * | 1999-11-18 | 2001-05-25 | Hitachi Ltd | 磁気ヘッド及びこれを用いた磁気ディスク装置 |
| US6504675B1 (en) | 2000-01-12 | 2003-01-07 | Seagate Technology Llc | Perpendicular magnetic recording heads with write pole shaped to reduce skew effects during writing |
| JP2002216325A (ja) * | 2001-01-17 | 2002-08-02 | Hitachi Ltd | 複合型磁気ヘッド、これを用いた磁気ディスク装置及び磁気ディスク装置の制御方法 |
| US6954340B2 (en) | 2001-05-23 | 2005-10-11 | Seagate Technology Llc | Perpendicular magnetic recording head with nonmagnetic write gap greater than twice side shield gap distance |
| US6771441B2 (en) | 2001-08-09 | 2004-08-03 | Seagate Technology Llc | Track mis-registration measurement for a disc drive |
| JP4342884B2 (ja) | 2002-09-18 | 2009-10-14 | ガジック・テクニカル・エンタープライゼス | スキュー角度に対して最適な配置を有する磁気ヘッド及びディスクx−y試験装置 |
| US7072147B2 (en) | 2003-06-20 | 2006-07-04 | Seagate Technology Llc | Hard drive actuator arm with reduced skew variation |
| US7324304B1 (en) | 2003-11-20 | 2008-01-29 | Maxtor Corporation | Tapered write pole for reduced skew effect |
| US6882488B1 (en) | 2003-12-03 | 2005-04-19 | Hitachi Global Storage Technologies Netherlands B.V. | Method for magnetic recording on patterned multilevel perpendicular media using variable write current |
| US7265941B2 (en) | 2004-02-27 | 2007-09-04 | Hitachi Global Storage Technologies Netherlands B.V. | Self-aligned, notched trailing shield for perpendicular recording |
| US7436632B2 (en) | 2004-06-30 | 2008-10-14 | Seagate Technology Llc | Differential/dual CPP recording head |
| US7251878B2 (en) | 2004-06-30 | 2007-08-07 | Hitachi Global Storage Technologies Netherlands B.V. | Method and apparatus for defining leading edge taper of a write pole tip |
| US7253992B2 (en) | 2004-11-04 | 2007-08-07 | Hitachi Global Storage Technologies Netherlands, B.V. | Single-pole recording head having trapezoidal main pole and bevel angle promotion layer and methods of fabricating the same |
| US7502193B2 (en) * | 2005-02-28 | 2009-03-10 | Hitachi Global Storage Technologies Netherlands B.V. | Positioning of a magnetic head in a magnetic data recording device using a multiple sensor array |
| US7126773B1 (en) | 2005-03-30 | 2006-10-24 | Hitachi Global Storage Technologies Netherlands, B.V. | Write precompensation method for perpendicular magnetic recording |
| US20070030594A1 (en) * | 2005-08-04 | 2007-02-08 | Biskeborn Robert G | Tape recording head with overlapping read transducers |
| JP2007265546A (ja) | 2006-03-29 | 2007-10-11 | Fujitsu Ltd | 磁気記録ヘッドのオフセット測定方法及び磁気記録再生装置 |
| US7436621B2 (en) * | 2006-06-08 | 2008-10-14 | Quantum Corporation | Azimuth compensation using combination bump pes detection |
| JP4595028B2 (ja) * | 2007-03-19 | 2010-12-08 | 東芝ストレージデバイス株式会社 | 追記型記憶装置、制御回路及び制御方法 |
| US8339735B2 (en) | 2007-06-29 | 2012-12-25 | Seagate Technology Llc | Magnetic writer for patterned stack with increased write field |
| US8089724B2 (en) | 2008-05-19 | 2012-01-03 | Seagate Technology Llc | Self-aligned perpendicular writer pole and front shield |
| US20100020435A1 (en) * | 2008-07-25 | 2010-01-28 | Agency For Science, Technology And Research | Recording device with write head spanning multiple rows of bit cells and multi-sensor read head |
| JP2010092571A (ja) * | 2008-10-10 | 2010-04-22 | Toshiba Storage Device Corp | 磁気ディスク装置および磁気記録に用いるスライダ |
| US8040629B2 (en) | 2008-10-31 | 2011-10-18 | Seagate Technology Llc | Bit and track patterned recording |
| JP2010146626A (ja) * | 2008-12-17 | 2010-07-01 | Toshiba Storage Device Corp | 記憶装置、記憶装置制御方法およびヘッドスライダ |
| US8508880B2 (en) * | 2011-02-16 | 2013-08-13 | Seagate Technology Llc | Transducer head with multiple read sensors |
-
2011
- 2011-02-16 US US13/028,915 patent/US8508880B2/en active Active
-
2012
- 2012-02-13 EP EP12155210A patent/EP2490219A1/en not_active Ceased
- 2012-02-13 JP JP2012028391A patent/JP6001270B2/ja not_active Expired - Fee Related
- 2012-02-15 CN CN201210040428.XA patent/CN102646420B/zh not_active Expired - Fee Related
- 2012-02-16 KR KR1020120015869A patent/KR101313754B1/ko not_active Expired - Fee Related
-
2013
- 2013-07-31 US US13/955,843 patent/US8724252B2/en active Active
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