JP2013186936A - 書込み信号が複数スロープ・データ変化を伴う記憶装置 - Google Patents

書込み信号が複数スロープ・データ変化を伴う記憶装置 Download PDF

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Publication number
JP2013186936A
JP2013186936A JP2012250785A JP2012250785A JP2013186936A JP 2013186936 A JP2013186936 A JP 2013186936A JP 2012250785 A JP2012250785 A JP 2012250785A JP 2012250785 A JP2012250785 A JP 2012250785A JP 2013186936 A JP2013186936 A JP 2013186936A
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Japan
Prior art keywords
data
slope
change
write
segments
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JP2012250785A
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English (en)
Japanese (ja)
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JP2013186936A5 (enExample
Inventor
Livshitz Boris
リヴシッツ ボリス
A Gleason Jeffrey
エー．グリアソン ジェフリー
S Goldberg Jason
エス．ゴールドバーグ ジェイソン
Mazur Paul
マズア ポール
C Rabe Cameron
シー．レイブ キャメロン
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LSI Corp
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LSI Corp
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Application filed by LSI Corp filed Critical LSI Corp
Publication of JP2013186936A publication Critical patent/JP2013186936A/ja
Publication of JP2013186936A5 publication Critical patent/JP2013186936A5/ja
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    • 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
    • G11B20/10009—Improvement or modification of read or write signals
    • 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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase 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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/09—Digital recording

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Digital Magnetic Recording (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
JP2012250785A 2012-03-09 2012-11-15 書込み信号が複数スロープ・データ変化を伴う記憶装置 Withdrawn JP2013186936A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/416,443 US8699161B2 (en) 2012-03-09 2012-03-09 Storage device having write signal with multiple-slope data transition
US13/416,443 2012-03-09

Publications (2)

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JP2013186936A true JP2013186936A (ja) 2013-09-19
JP2013186936A5 JP2013186936A5 (enExample) 2015-12-03

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JP2012250785A Withdrawn JP2013186936A (ja) 2012-03-09 2012-11-15 書込み信号が複数スロープ・データ変化を伴う記憶装置

Country Status (6)

Country Link
US (1) US8699161B2 (enExample)
EP (1) EP2637171A3 (enExample)
JP (1) JP2013186936A (enExample)
KR (1) KR20130103285A (enExample)
CN (1) CN103310819B (enExample)
TW (1) TW201337915A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017179656A1 (ja) * 2016-04-14 2017-10-19 株式会社ロイヤルコーポレーション 炭化水素油の増量方法、炭化水素油の製造方法、炭化水素油の増加量を推算する方法、炭化水素油の増加量を推算する方法を実行させるプログラム、及び、炭化水素油の増加量を推算する装置
JP2018055734A (ja) * 2016-09-26 2018-04-05 株式会社東芝 磁気記録再生装置および磁気記録再生装置の制御方法
US10083711B1 (en) 2017-08-01 2018-09-25 Kabushiki Kaisha Toshiba Magnetic recording apparatus and recording current control apparatus

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US8873188B2 (en) * 2013-02-28 2014-10-28 Lsi Corporation Storage device having degauss circuitry configured for generating degauss signal with asymmetric decay envelopes
US9525405B2 (en) 2015-01-09 2016-12-20 Avago Technologies General Ip (Singapore) Pte. Ltd. Mitigation of common mode disturbances in an H-bridge driver
US10366714B1 (en) 2016-04-28 2019-07-30 Western Digital Technologies, Inc. Magnetic write head for providing spin-torque-assisted write field enhancement
US10388305B1 (en) 2016-12-30 2019-08-20 Western Digital Technologies, Inc. Apparatus and method for writing to magnetic media using an AC bias current to enhance the write field
US10424323B1 (en) 2016-12-30 2019-09-24 Western Digital Technologies, Inc. High-bandwidth STO bias architecture with integrated slider voltage potential control
US11011190B2 (en) 2019-04-24 2021-05-18 Western Digital Technologies, Inc. Magnetic write head with write-field enhancement structure including a magnetic notch
US11087784B2 (en) 2019-05-03 2021-08-10 Western Digital Technologies, Inc. Data storage devices with integrated slider voltage potential control
US10957346B2 (en) 2019-05-03 2021-03-23 Western Digital Technologies, Inc. Magnetic recording devices and methods using a write-field-enhancement structure and bias current with offset pulses

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NL7905160A (nl) * 1979-07-03 1981-01-06 Philips Nv Inrichting voor het weergeven van audiosignalen.
US4503396A (en) * 1982-04-02 1985-03-05 Ampex Corporation Circuit and method for generating a ramp signal
US5612828A (en) 1995-09-11 1997-03-18 Vtc Inc. Write driver with improvements for risetime
US6246269B1 (en) 1998-04-06 2001-06-12 Agere Systems Guardian Corp. Programmable damping for write circuits
US6201653B1 (en) 1998-06-12 2001-03-13 International Business Machines Corporation By-pass write drivers for high-performance data recording
US6246533B1 (en) 1998-07-13 2001-06-12 Agilent Technologies, Inc. Programmable write driver circuit for writing information to a magnetic storage media
US6366421B2 (en) 1998-12-17 2002-04-02 Texas Instruments Incorporated Adjustable writer overshoot for a hard disk drive write head
US6683740B1 (en) 1999-10-21 2004-01-27 Sony Corporation Architecture for a hard disk drive write amplifier circuit with damping control
CN1449511A (zh) * 2000-06-30 2003-10-15 陶氏化学公司 多变量矩阵处理控制
US6381086B1 (en) 2000-10-23 2002-04-30 Agere Systems Guardian Corp. Programmable active damping for high-speed write driver
US6798591B2 (en) 2001-10-29 2004-09-28 Texas Instruments Incorporated Reference circuit for write driver circuit with programmable write current, overshoot duration and overshoot amplitude control
CN1553436A (zh) * 2003-05-30 2004-12-08 深圳易拓科技有限公司 磁盘驱动器组合
CN100513994C (zh) * 2003-12-17 2009-07-15 联发科技股份有限公司 决定物镜位置差与驱动电压间相对关系的方法及装置
TW200608376A (en) * 2004-08-18 2006-03-01 Lite On It Corp Method for controlling tilt angle between light axis of optical pickup head and CD and device thereof
KR100618867B1 (ko) 2004-10-05 2006-08-31 삼성전자주식회사 하드디스크 드라이브의 기록 파라메터 보정값 산출 방법및 이에 적합한 기록매체
US20080002267A1 (en) 2006-06-29 2008-01-03 Eun Kyu Jang Method and apparatus for slew rate control in the write current shape of a hard disk drive
WO2009025664A1 (en) 2007-08-20 2009-02-26 Agere Systems Inc. Data storage drive with reduced power consumption
WO2010144456A1 (en) * 2009-06-09 2010-12-16 Analog Devices, Inc. Integrated slope control driving mechanism for gradually delivering energy to a capacitive load
US8421510B2 (en) 2010-06-15 2013-04-16 Texas Instruments Incorporated Low voltage high-speed wave shaping circuitry
US8049982B1 (en) 2010-07-30 2011-11-01 Lsi Corporation Methods and apparatus for measuring servo address mark distance in a read channel using selective fine phase estimate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017179656A1 (ja) * 2016-04-14 2017-10-19 株式会社ロイヤルコーポレーション 炭化水素油の増量方法、炭化水素油の製造方法、炭化水素油の増加量を推算する方法、炭化水素油の増加量を推算する方法を実行させるプログラム、及び、炭化水素油の増加量を推算する装置
JP2018055734A (ja) * 2016-09-26 2018-04-05 株式会社東芝 磁気記録再生装置および磁気記録再生装置の制御方法
US10083711B1 (en) 2017-08-01 2018-09-25 Kabushiki Kaisha Toshiba Magnetic recording apparatus and recording current control apparatus

Also Published As

Publication number Publication date
CN103310819A (zh) 2013-09-18
US20130235485A1 (en) 2013-09-12
CN103310819B (zh) 2016-12-28
TW201337915A (zh) 2013-09-16
EP2637171A3 (en) 2015-10-14
US8699161B2 (en) 2014-04-15
EP2637171A2 (en) 2013-09-11
KR20130103285A (ko) 2013-09-23

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