KR20130103285A - 다중-경사 데이터 천이를 갖는 기록 신호를 갖는 저장 디바이스 - Google Patents

다중-경사 데이터 천이를 갖는 기록 신호를 갖는 저장 디바이스 Download PDF

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Publication number
KR20130103285A
KR20130103285A KR1020120125506A KR20120125506A KR20130103285A KR 20130103285 A KR20130103285 A KR 20130103285A KR 1020120125506 A KR1020120125506 A KR 1020120125506A KR 20120125506 A KR20120125506 A KR 20120125506A KR 20130103285 A KR20130103285 A KR 20130103285A
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KR
South Korea
Prior art keywords
data
transition
write
read
slope
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.)
Withdrawn
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KR1020120125506A
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English (en)
Korean (ko)
Inventor
보리스 리브시츠
제프리 에이 글리슨
제이슨 에스 골드버그
폴 마주르
카메론 씨 라브
Original Assignee
엘에스아이 코포레이션
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Application filed by 엘에스아이 코포레이션 filed Critical 엘에스아이 코포레이션
Publication of KR20130103285A publication Critical patent/KR20130103285A/ko
Withdrawn legal-status Critical Current

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    • 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
    • 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
    • G11B5/09—Digital recording

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Digital Magnetic Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
KR1020120125506A 2012-03-09 2012-11-07 다중-경사 데이터 천이를 갖는 기록 신호를 갖는 저장 디바이스 Withdrawn KR20130103285A (ko)

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 (1)

Publication Number Publication Date
KR20130103285A true KR20130103285A (ko) 2013-09-23

Family

ID=47845817

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120125506A Withdrawn KR20130103285A (ko) 2012-03-09 2012-11-07 다중-경사 데이터 천이를 갖는 기록 신호를 갖는 저장 디바이스

Country Status (6)

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

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US20200377813A1 (en) * 2016-04-14 2020-12-03 Royal Corporation Co., Ltd. Method for increasing amount of hydrocarbon oil, method for producing hydrocarbon oil, method for estimating increase amount of hydrocarbon oil, program for executing method for estimating increase amount of hydrocarbon oil, and device for estimating increase amount of hydrocarbon oil
US10366714B1 (en) 2016-04-28 2019-07-30 Western Digital Technologies, Inc. Magnetic write head for providing spin-torque-assisted write field enhancement
JP6629160B2 (ja) * 2016-09-26 2020-01-15 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
US10424323B1 (en) 2016-12-30 2019-09-24 Western Digital Technologies, Inc. High-bandwidth STO bias architecture with integrated slider voltage potential control
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
JP2019029047A (ja) 2017-08-01 2019-02-21 株式会社東芝 磁気記録装置および記録電流制御装置
US10971187B2 (en) * 2019-03-11 2021-04-06 Marvell Asia Pte, Ltd. Constant-density writing for magnetic storage media
US11011190B2 (en) 2019-04-24 2021-05-18 Western Digital Technologies, Inc. Magnetic write head with write-field enhancement structure including a magnetic notch
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
US11087784B2 (en) 2019-05-03 2021-08-10 Western Digital Technologies, Inc. Data storage devices with integrated slider voltage potential control

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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
CA2411378A1 (en) * 2000-06-30 2002-01-10 The Dow Chemical Company Multi-variable matrix process control
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
JP4908635B2 (ja) 2007-08-20 2012-04-04 アギア システムズ インコーポレーテッド 消費電力が低減されるデータ記憶ドライブ
US8330324B2 (en) * 2009-06-09 2012-12-11 Analog Devices, Inc. Integrated PWM 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

Also Published As

Publication number Publication date
CN103310819A (zh) 2013-09-18
CN103310819B (zh) 2016-12-28
US8699161B2 (en) 2014-04-15
JP2013186936A (ja) 2013-09-19
US20130235485A1 (en) 2013-09-12
TW201337915A (zh) 2013-09-16
EP2637171A2 (en) 2013-09-11
EP2637171A3 (en) 2015-10-14

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PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 20121107

PG1501 Laying open of application
N231 Notification of change of applicant
PN2301 Change of applicant

Patent event date: 20150427

Comment text: Notification of Change of Applicant

Patent event code: PN23011R01D

PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid