DE60002178D1 - Verstärker mit variabler verstärkung mit temperaturkompensation zum gebrauch in einem plattenantriebssystem - Google Patents

Verstärker mit variabler verstärkung mit temperaturkompensation zum gebrauch in einem plattenantriebssystem

Info

Publication number
DE60002178D1
DE60002178D1 DE60002178T DE60002178T DE60002178D1 DE 60002178 D1 DE60002178 D1 DE 60002178D1 DE 60002178 T DE60002178 T DE 60002178T DE 60002178 T DE60002178 T DE 60002178T DE 60002178 D1 DE60002178 D1 DE 60002178D1
Authority
DE
Germany
Prior art keywords
signal
amplifier
compensation
temperature
readback
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.)
Expired - Fee Related
Application number
DE60002178T
Other languages
English (en)
Other versions
DE60002178T2 (de
Inventor
Richard Bonaccio
Allen Philpott
John Windler
Scott Winn
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.)
HGST Netherlands BV
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE60002178D1 publication Critical patent/DE60002178D1/de
Publication of DE60002178T2 publication Critical patent/DE60002178T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
    • 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
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/04—Modifications of control circuit to reduce distortion caused by control
    • 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
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0005—Arrangements, methods or circuits
    • G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
    • G11B2005/0013—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation
    • G11B2005/0016—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation of magnetoresistive transducers
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B2005/3996—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects large or giant magnetoresistive effects [GMR], e.g. as generated in spin-valve [SV] devices
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
    • 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
    • G11B5/455—Arrangements for functional testing of heads; Measuring arrangements for heads

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Digital Magnetic Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Amplifiers (AREA)
DE60002178T 1999-02-19 2000-02-10 Verstärker mit variabler verstärkung mit temperaturkompensation zum gebrauch in einem plattenantriebssystem Expired - Fee Related DE60002178T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/253,122 US6282038B1 (en) 1999-02-19 1999-02-19 Variable gain amplifier with temperature compensation for use in a disk drive system
US253122 1999-02-19
PCT/US2000/003382 WO2000049613A1 (en) 1999-02-19 2000-02-10 Variable gain amplifier with temperature compensation for use in a disk drive system

Publications (2)

Publication Number Publication Date
DE60002178D1 true DE60002178D1 (de) 2003-05-22
DE60002178T2 DE60002178T2 (de) 2004-03-04

Family

ID=22958957

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60002178T Expired - Fee Related DE60002178T2 (de) 1999-02-19 2000-02-10 Verstärker mit variabler verstärkung mit temperaturkompensation zum gebrauch in einem plattenantriebssystem

Country Status (13)

Country Link
US (1) US6282038B1 (de)
EP (1) EP1153390B1 (de)
JP (1) JP3682470B2 (de)
KR (1) KR100460376B1 (de)
CN (1) CN1184632C (de)
AT (1) ATE237863T1 (de)
CZ (1) CZ20013013A3 (de)
DE (1) DE60002178T2 (de)
HU (1) HUP0105213A3 (de)
MY (1) MY119878A (de)
PL (1) PL349276A1 (de)
RU (1) RU2250517C2 (de)
WO (1) WO2000049613A1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6707629B1 (en) * 2000-06-30 2004-03-16 Texas Instruments Incorporated Digital temperature monitor
US6594104B2 (en) * 2001-02-26 2003-07-15 Hitachi, Ltd. Magnetic disk unit including temperature sensing of IC mounted on suspension
KR100438770B1 (ko) * 2001-05-28 2004-07-05 삼성전자주식회사 데이터 저장 시스템의 설계 파라미터 최적화 방법 및최적화된 설계 파라미터 적용 방법
US7430083B2 (en) * 2002-05-23 2008-09-30 Seagate Technology Llc Virtual head fly profile measurement
US7260377B2 (en) * 2002-12-02 2007-08-21 Broadcom Corporation Variable-gain low noise amplifier for digital terrestrial applications
US7471941B2 (en) * 2002-12-02 2008-12-30 Broadcom Corporation Amplifier assembly including variable gain amplifier, parallel programmable amplifiers, and AGC
US8437720B2 (en) 2002-12-02 2013-05-07 Broadcom Corporation Variable-gain low noise amplifier for digital terrestrial applications
US6798286B2 (en) * 2002-12-02 2004-09-28 Broadcom Corporation Gain control methods and systems in an amplifier assembly
US7190542B2 (en) * 2003-08-13 2007-03-13 Seagate Technology Llc Acoustical noise reduction for a data storage device
US7097110B2 (en) * 2003-09-02 2006-08-29 Texas Instruments Incorporated Temperature compensation systems and methods for use with read/write heads in magnetic storage devices
US7027243B2 (en) * 2004-03-29 2006-04-11 Hitachi Global Storage Technologies Netherlands B.V. Apparatus for providing head amplitude characterization
KR100640608B1 (ko) * 2004-12-11 2006-11-01 삼성전자주식회사 스핀들 모터 드라이버의 전류 이득 변환 제어 방법 및 장치
US7773324B2 (en) 2005-04-12 2010-08-10 Stmicroelectronics, Inc. Phase acquisition loop for a read channel and related read channel, system, and method
US7768732B2 (en) * 2005-04-12 2010-08-03 Stmicroelectronics, Inc. Gain controller for a gain loop of a read channel and related gain loops, read channels, systems, and methods
JP2007184023A (ja) * 2006-01-04 2007-07-19 Hitachi Global Storage Technologies Netherlands Bv ディスク・ドライブ及びその制御方法
US7656219B2 (en) * 2007-01-26 2010-02-02 Atmel Corporation Unity gain voltage buffer with dual supply voltage for managing current consumption in low voltage applications
US7508617B1 (en) * 2007-09-07 2009-03-24 Seagate Technology Llc Fly height compensation using read gain control loop
US8922923B2 (en) 2011-03-01 2014-12-30 Seagate Technology Llc Interleaved automatic gain control for asymmetric data signals
US10312930B1 (en) * 2018-01-25 2019-06-04 Analog Devices Global Unlimited Company ADC digital gain error compensation
US11870512B2 (en) 2022-04-27 2024-01-09 Samsung Electronics Co., Ltd. Distributed closed-loop power control with VGA gain update

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0269756B1 (de) 1986-08-05 1991-01-09 International Business Machines Corporation Verstärkungssteuerungsschaltung für ein Wiedergabegerät in einem magnetischen Aufzeichnungssystem, welches ein Verfahren mit partieller Wiedergabe und höchster Wahrscheinlichkeit verwendet
US5162678A (en) 1990-09-18 1992-11-10 Silicon Systems, Inc. Temperature compensation control circuit for exponential gain function of an agc amplifier
US5177453A (en) 1991-07-01 1993-01-05 Raytheon Company Gain control amplifier
US5463603A (en) 1992-03-18 1995-10-31 Imp, Inc. Computer disk drive integrated data path circuit optimized for handling both data and servo signals
US5375145A (en) 1992-08-27 1994-12-20 Quantum Corporation Multi-mode gain control loop for PRML class IV sampling data detection channel
US5321559A (en) 1992-08-27 1994-06-14 Quantum Corporation Asynchronous peak detection of information embedded within PRML class IV sampling data detection channel
US5519548A (en) 1993-03-31 1996-05-21 Hewlett-Packard Company Using read channel noise to initialize read channel for head position calibration in a magnetic data storage device
US5442492A (en) 1993-06-29 1995-08-15 International Business Machines Corporation Data recovery procedure using DC offset and gain control for timing loop compensation for partial-response data detection
JP3208975B2 (ja) 1993-12-28 2001-09-17 株式会社日立製作所 アクティブフィルタ制御方式
US5631891A (en) 1994-01-05 1997-05-20 Fujitsu Limited Disk reproducing circuit with automatic gain control
US5491447A (en) 1994-05-13 1996-02-13 International Business Machines Corporation Operational transconductance amplifier with independent transconductance and common mode feedback control
JP3199996B2 (ja) 1995-11-15 2001-08-20 株式会社東芝 ディスク記録再生システム及びそのヘッド浮上変動検出方法
JP3457463B2 (ja) * 1996-04-26 2003-10-20 富士通株式会社 光学的記憶装置
JPH10340412A (ja) * 1997-06-06 1998-12-22 Fujitsu Ltd 情報記憶装置
GB2341267B (en) * 1997-06-13 2001-05-09 Seagate Technology Temperature dependent disc drive parametric configuration

Also Published As

Publication number Publication date
US6282038B1 (en) 2001-08-28
CZ20013013A3 (cs) 2002-01-16
RU2250517C2 (ru) 2005-04-20
JP2002537626A (ja) 2002-11-05
KR100460376B1 (ko) 2004-12-08
JP3682470B2 (ja) 2005-08-10
EP1153390A1 (de) 2001-11-14
DE60002178T2 (de) 2004-03-04
CN1340193A (zh) 2002-03-13
HUP0105213A2 (hu) 2002-04-29
CN1184632C (zh) 2005-01-12
PL349276A1 (en) 2002-07-15
EP1153390B1 (de) 2003-04-16
KR20020007300A (ko) 2002-01-26
MY119878A (en) 2005-07-29
HUP0105213A3 (en) 2003-07-28
WO2000049613A1 (en) 2000-08-24
ATE237863T1 (de) 2003-05-15

Similar Documents

Publication Publication Date Title
DE60002178D1 (de) Verstärker mit variabler verstärkung mit temperaturkompensation zum gebrauch in einem plattenantriebssystem
JP2625598B2 (ja) データ記録装置、非線形ビットシフトの測定方法、非線形ビットシフトの補償方法及び磁気記録装置
Sutor et al. A Preisach-based hysteresis model for magnetic and ferroelectric hysteresis
EP2410528A1 (de) Kompensierung von Vorverstärkerfrequenzgang und Zeitverzögerung für Plattenlaufwerke
ATE511237T1 (de) Vorrichtung und verfahren zur überwachung und regelung der linearität eines leistungsverstärkers durch detektion von grund- und oberschwingungen
JPH03235206A (ja) データチャネルにおける付加的外乱を抑制する方法及び回路
RU2001124834A (ru) Усилитель с регулируемым коэффициентом усиления и температурной компенсацией, предназначенный для использованния в дисководе
MY124679A (en) Method for measuring relative and absolute amplitudes of a signal read from a data storage medium
US6051997A (en) Circuit for tracking rapid changes in mid-point voltage of a data signal
SG124226A1 (en) Method and apparatus for run-time temperature compensation of giant magnetoresistive head bias current
US4704584A (en) Instantaneous floating point amplifier
US20050174669A1 (en) Preamplifier circuit with signal interference cancellation suitable for use in magnetic storage devices
JP2002504253A (ja) 周波数領域における再生ヘッド線形化を用いる方法および装置
JP2008005129A (ja) 非線形歪補償回路、送信装置、非線形歪補償方法、プログラム、記録媒体
HUP9902173A2 (hu) Készülék írás előkompenzálására mágneses adathordozóra történő felvételhez
US3577192A (en) Reproduce head with peak sensing circuit
ATE156945T1 (de) Schaltkreis zum schalten der leseköpfe eines videorecorders
US6510012B1 (en) High-speed CMOS buffer circuit with programmable quadratic transfer function
TWI242767B (en) Optical record carrier recording method and recording apparatus
MY126443A (en) Arrangement for reading information from a record carrier
JP2975323B2 (ja) 非線形ひずみ量測定方法
US7595949B1 (en) Method for active cancellation of write-to-read crosstalk
JP2701804B2 (ja) 磁気記録再生方法及び装置並びにこれらを用いた磁気ディスク装置
AU2003280181A1 (en) Method and apparatus for dynamic readout decision level adjustment for use in domain expansion reading
JPS6145300B2 (de)

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.

8339 Ceased/non-payment of the annual fee