CN103137142A - 具有多级别写电流的磁记录系统 - Google Patents

具有多级别写电流的磁记录系统 Download PDF

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Publication number
CN103137142A
CN103137142A CN2012103565438A CN201210356543A CN103137142A CN 103137142 A CN103137142 A CN 103137142A CN 2012103565438 A CN2012103565438 A CN 2012103565438A CN 201210356543 A CN201210356543 A CN 201210356543A CN 103137142 A CN103137142 A CN 103137142A
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CN
China
Prior art keywords
data
write
signal
level
write current
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.)
Pending
Application number
CN2012103565438A
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English (en)
Chinese (zh)
Inventor
B·利维彻兹
R·S·威尔森
J·S·高登博格
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Avago Technologies International Sales Pte Ltd
Original Assignee
Infineon Technologies North America Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Infineon Technologies North America Corp filed Critical Infineon Technologies North America Corp
Publication of CN103137142A publication Critical patent/CN103137142A/zh
Pending 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
    • G11B20/10018—Improvement or modification of read or write signals analog processing for digital recording or reproduction
    • G11B20/10027—Improvement or modification of read or write signals analog processing for digital recording or reproduction adjusting the signal strength during recording or reproduction, e.g. variable gain amplifiers
    • 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
    • G11B20/10222—Improvement or modification of read or write signals clock-related aspects, e.g. phase or frequency adjustment or bit synchronisation
    • 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
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2508—Magnetic discs
    • G11B2220/2516—Hard disks

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Digital Magnetic Recording (AREA)
CN2012103565438A 2011-11-22 2012-09-21 具有多级别写电流的磁记录系统 Pending CN103137142A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/302,169 US20130128375A1 (en) 2011-11-22 2011-11-22 Magnetic Recording System With Multi-Level Write Current
US13/302,169 2011-11-22

Publications (1)

Publication Number Publication Date
CN103137142A true CN103137142A (zh) 2013-06-05

Family

ID=46851843

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012103565438A Pending CN103137142A (zh) 2011-11-22 2012-09-21 具有多级别写电流的磁记录系统

Country Status (6)

Country Link
US (1) US20130128375A1 (https=)
EP (1) EP2597641A1 (https=)
JP (1) JP2013109815A (https=)
KR (1) KR20130056819A (https=)
CN (1) CN103137142A (https=)
TW (1) TWI536374B (https=)

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* Cited by examiner, † Cited by third party
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CN105551505A (zh) * 2014-10-28 2016-05-04 Hgst荷兰公司 写入电流过冲幅度响应于数据转换的磁记录盘驱动器
CN109427348A (zh) * 2017-09-04 2019-03-05 株式会社东芝 磁盘装置及写入处理方法
CN115206351A (zh) * 2021-04-12 2022-10-18 希捷科技有限公司 用于磁记录每单位数据具有三个或更多个状态的数据的方法和设备

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JP5048860B1 (ja) * 2011-08-29 2012-10-17 株式会社日立製作所 磁気記録装置
US9030770B2 (en) * 2012-11-02 2015-05-12 HGST Netherlands B.V. Programmable analog feed-forward timer for dynamic wave shaping
US9105276B2 (en) * 2013-02-13 2015-08-11 Avago Technologies General Ip (Singapore) Pte. Ltd. System and method for providing controllable steady state current waveshaping in a hard disk drive (HDD) preamplifier
KR20150022241A (ko) * 2013-08-22 2015-03-04 에스케이하이닉스 주식회사 반도체 메모리 장치
US9013816B2 (en) 2013-08-27 2015-04-21 Lsi Corporation Adaptive pattern detection for pattern-dependent write current control in a magnetic recording system
US8792197B1 (en) 2013-09-20 2014-07-29 Lsi Corporation Storage device with driver controller providing pattern-dependent write functionality
US8929013B1 (en) * 2013-11-08 2015-01-06 Lsi Corporation Storage system with pattern dependent write
US9430148B2 (en) 2014-05-01 2016-08-30 Avago Technologies General Ip (Singapore) Pte. Ltd. Multiplexed synchronous serial port communication with skew control for storage device
US9281005B2 (en) 2014-05-01 2016-03-08 Avago Technologies General Ip (Singapore) Pte. Ltd. Multiplexed communication in a storage device
US9343103B2 (en) 2014-07-11 2016-05-17 Avago Technologies General Ip (Singapore) Pte. Ltd. Serial port communication for storage device using single bidirectional serial data line
US9183859B1 (en) * 2014-11-11 2015-11-10 Western Digital (Fremont), Llc HAMR writer pole length characterization
US9530447B2 (en) * 2015-02-27 2016-12-27 Seagate Technology Llc Adaptive HAMR power data storage device
US9601152B2 (en) * 2015-03-06 2017-03-21 Texas Instruments Incorporated Additional overshoot current HDD write driver circuit
US20160260454A1 (en) * 2015-03-06 2016-09-08 Texas Instruments Incorporated Configurable write current overshoot system for hdd write driver
US9275656B1 (en) 2015-07-20 2016-03-01 HGST Netherlands B.V. Disk drive with channel and preamp with dynamic write-current control for write head
US10164592B1 (en) * 2015-08-24 2018-12-25 Seagate Technology Llc Individually programmable preamplifier
US9368132B1 (en) 2015-09-04 2016-06-14 Western Digital Technologies, Inc. Data storage device employing differential write data signal and differential write pattern signal
US9754610B2 (en) * 2015-12-21 2017-09-05 Avago Technologies General Ip (Singapore) Pte. Ltd. Magnetic recording system with ternary pattern dependent write signaling
US9721588B2 (en) * 2015-12-28 2017-08-01 Avago Technologies General Ip (Singapore) Pte. Ltd. Magnetic recording system including differentiated write current emphasis signal generator circuit
US9715887B2 (en) * 2015-12-28 2017-07-25 Avago Technologies General Ip (Singapore) Pte. Ltd. Magnetic recording system using pattern dependent writer having register pages for storing write currents
US9536604B1 (en) 2016-01-06 2017-01-03 International Business Machines Corporation Impedance matching system for DDR memory
JP2018049677A (ja) 2016-09-23 2018-03-29 株式会社東芝 磁気ディスク装置、調整方法、及び製造方法
US9824699B1 (en) * 2017-01-31 2017-11-21 Seagate Technology Llc Lumped-parameter thermal model of a write transducer for clearance control on magnetic recording device
JP2018147526A (ja) * 2017-03-01 2018-09-20 株式会社東芝 磁気ディスク装置
JP2019016418A (ja) 2017-07-10 2019-01-31 株式会社東芝 磁気記録再生装置
US10991391B1 (en) * 2020-02-04 2021-04-27 Headway Technologies, Inc. Circuits and methods for modifying the write current waveform to improve track density in HDD
US11894025B1 (en) 2022-03-09 2024-02-06 Marvell Asia Pte Ltd Disk writing mode providing main pole relaxation
US11915729B1 (en) 2022-03-09 2024-02-27 Marvell Asia Pte Ltd Disk writing mode with timing control of main pole relaxation

Citations (5)

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US4482927A (en) * 1982-01-15 1984-11-13 Sperry Corporation Ternary magnetic recording and reproducing system with simultaneous overwrite
CN1443350A (zh) * 2000-03-31 2003-09-17 西加特技术有限责任公司 数据存储设备中适用于配合场维持电流使用的脉冲写电流
US6826003B1 (en) * 2002-01-31 2004-11-30 Western Digital Technologies, Inc. Disk drive comprising a pattern dependent overshoot circuit for controlling write current overshoot
US7372649B2 (en) * 2003-04-03 2008-05-13 Texas Instruments Incorporated Apparatus and method for applying write signals for driving a write head
US7944641B2 (en) * 2008-01-28 2011-05-17 Samsung Electronics Co., Ltd. Overshoot duration range selection in a hard disk drive

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WO1995035565A1 (en) * 1994-06-17 1995-12-28 Minnesota Mining And Manufacturing Company Nrz magnetic recording
KR100468778B1 (ko) * 2002-12-13 2005-01-29 삼성전자주식회사 하드디스크 드라이브의 기록 전류 최적화 방법 및 기록밀도 설정 방법
KR100532486B1 (ko) * 2003-12-24 2005-12-02 삼성전자주식회사 하드디스크 드라이브의 기록 전류 제어 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4482927A (en) * 1982-01-15 1984-11-13 Sperry Corporation Ternary magnetic recording and reproducing system with simultaneous overwrite
CN1443350A (zh) * 2000-03-31 2003-09-17 西加特技术有限责任公司 数据存储设备中适用于配合场维持电流使用的脉冲写电流
US6826003B1 (en) * 2002-01-31 2004-11-30 Western Digital Technologies, Inc. Disk drive comprising a pattern dependent overshoot circuit for controlling write current overshoot
US7372649B2 (en) * 2003-04-03 2008-05-13 Texas Instruments Incorporated Apparatus and method for applying write signals for driving a write head
US7944641B2 (en) * 2008-01-28 2011-05-17 Samsung Electronics Co., Ltd. Overshoot duration range selection in a hard disk drive

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105551505A (zh) * 2014-10-28 2016-05-04 Hgst荷兰公司 写入电流过冲幅度响应于数据转换的磁记录盘驱动器
CN109427348A (zh) * 2017-09-04 2019-03-05 株式会社东芝 磁盘装置及写入处理方法
CN115206351A (zh) * 2021-04-12 2022-10-18 希捷科技有限公司 用于磁记录每单位数据具有三个或更多个状态的数据的方法和设备

Also Published As

Publication number Publication date
US20130128375A1 (en) 2013-05-23
TWI536374B (zh) 2016-06-01
EP2597641A1 (en) 2013-05-29
TW201333944A (zh) 2013-08-16
KR20130056819A (ko) 2013-05-30
JP2013109815A (ja) 2013-06-06

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SE01 Entry into force of request for substantive examination
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Owner name: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) CORPORAT

Free format text: FORMER OWNER: INFINEON TECHNOLOGIES CORP.

Effective date: 20150818

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TA01 Transfer of patent application right

Effective date of registration: 20150818

Address after: Singapore Singapore

Applicant after: Avago Technologies General IP (Singapore) Pte. Ltd.

Address before: California, USA

Applicant before: LSI Corp.

WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20130605