FR2798788B1 - Circuit d'elimination de bruit dans un circuit d'amplification - Google Patents

Circuit d'elimination de bruit dans un circuit d'amplification

Info

Publication number
FR2798788B1
FR2798788B1 FR0009831A FR0009831A FR2798788B1 FR 2798788 B1 FR2798788 B1 FR 2798788B1 FR 0009831 A FR0009831 A FR 0009831A FR 0009831 A FR0009831 A FR 0009831A FR 2798788 B1 FR2798788 B1 FR 2798788B1
Authority
FR
France
Prior art keywords
circuit
noise eliminating
amplification
amplification circuit
noise
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
FR0009831A
Other languages
English (en)
Other versions
FR2798788A1 (fr
Inventor
Akihiko Ono
Takumi Kawai
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of FR2798788A1 publication Critical patent/FR2798788A1/fr
Application granted granted Critical
Publication of FR2798788B1 publication Critical patent/FR2798788B1/fr
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
    • G11B20/24—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing noise
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Digital Magnetic Recording (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Amplifiers (AREA)
FR0009831A 1999-09-17 2000-07-27 Circuit d'elimination de bruit dans un circuit d'amplification Expired - Fee Related FR2798788B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26367499A JP2001084506A (ja) 1999-09-17 1999-09-17 ノイズ除去回路、増幅回路、及び磁気記録装置

Publications (2)

Publication Number Publication Date
FR2798788A1 FR2798788A1 (fr) 2001-03-23
FR2798788B1 true FR2798788B1 (fr) 2005-08-19

Family

ID=17392778

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0009831A Expired - Fee Related FR2798788B1 (fr) 1999-09-17 2000-07-27 Circuit d'elimination de bruit dans un circuit d'amplification

Country Status (3)

Country Link
US (1) US6255898B1 (fr)
JP (1) JP2001084506A (fr)
FR (1) FR2798788B1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5978379A (en) 1997-01-23 1999-11-02 Gadzoox Networks, Inc. Fiber channel learning bridge, learning half bridge, and protocol
US7430171B2 (en) 1998-11-19 2008-09-30 Broadcom Corporation Fibre channel arbitrated loop bufferless switch circuitry to increase bandwidth without significant increase in cost
US7489790B2 (en) * 2000-12-05 2009-02-10 Ami Semiconductor, Inc. Digital automatic gain control
US6724550B2 (en) 2001-01-23 2004-04-20 Seagate Technology Llc Adaptive dampening of thermal asperity events in disc drives
JP3692961B2 (ja) * 2001-04-13 2005-09-07 ソニー株式会社 磁気記録データ再生装置及び方法
AU2002323295A1 (en) 2002-03-29 2003-10-20 Seagate Technology Llc Mr head thermal asperity cancellation
KR100469283B1 (ko) * 2003-03-03 2005-02-02 엘지전자 주식회사 디지털 티브이의 채널 추정 장치
US7274523B2 (en) * 2004-03-31 2007-09-25 Stmicroelectronics, Inc. Read head preamplifier with thermal asperity transient control
JP4371063B2 (ja) * 2005-02-18 2009-11-25 富士ゼロックス株式会社 磁性体検知装置および方法
US7751139B1 (en) * 2006-08-17 2010-07-06 Marvell International Ltd. Circuits, systems, and methods for calibration of bias across a magneto-resistive sensor
US7598716B2 (en) * 2007-06-07 2009-10-06 Freescale Semiconductor, Inc. Low pass filter low drop-out voltage regulator
JPWO2009090703A1 (ja) * 2008-01-18 2011-05-26 パナソニック株式会社 ランプ波出力回路、アナログデジタル変換回路、及びカメラ
JP5251698B2 (ja) * 2009-04-20 2013-07-31 富士通株式会社 増幅回路、増幅方法及び電源電圧調整方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5418660A (en) * 1991-12-09 1995-05-23 Hitachi, Ltd. Information processing apparatus for processing reproduction signal having nonlinear characteristics
AUPM900594A0 (en) * 1994-10-24 1994-11-17 Cochlear Pty. Limited Automatic sensitivity control
US5801896A (en) * 1995-03-02 1998-09-01 International Business Machines Corporation Method and apparatus for servo pulse detection with high AC coupling and large pulse asymmetry
JP3458567B2 (ja) * 1995-11-28 2003-10-20 三菱電機株式会社 Ｍｒヘッド用増幅器
US5898532A (en) * 1996-07-02 1999-04-27 Seagate Technology Inc. MR head thermal asperity recovery
JP3545579B2 (ja) * 1997-09-30 2004-07-21 株式会社日立製作所 再生信号処理方法および再生信号処理回路ならびに磁気記憶装置

Also Published As

Publication number Publication date
JP2001084506A (ja) 2001-03-30
FR2798788A1 (fr) 2001-03-23
US6255898B1 (en) 2001-07-03

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20070330