SG99401A1 - Method and apparatus for optimizing auto gain control of read channel in a disk drive - Google Patents

Method and apparatus for optimizing auto gain control of read channel in a disk drive

Info

Publication number
SG99401A1
SG99401A1 SG200203890A SG200203890A SG99401A1 SG 99401 A1 SG99401 A1 SG 99401A1 SG 200203890 A SG200203890 A SG 200203890A SG 200203890 A SG200203890 A SG 200203890A SG 99401 A1 SG99401 A1 SG 99401A1
Authority
SG
Singapore
Prior art keywords
disk drive
gain control
read channel
auto gain
optimizing
Prior art date
Application number
SG200203890A
Other languages
English (en)
Inventor
Sakai Yuji
Original Assignee
Toshiba Kk
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 Toshiba Kk filed Critical Toshiba Kk
Publication of SG99401A1 publication Critical patent/SG99401A1/en

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
    • 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
    • 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
    • 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
    • G11B5/027—Analogue recording
    • G11B5/035—Equalising
SG200203890A 2001-07-30 2002-06-27 Method and apparatus for optimizing auto gain control of read channel in a disk drive SG99401A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001230202A JP3645505B2 (ja) 2001-07-30 2001-07-30 ディスク記憶装置及び同装置に適用するリード方法

Publications (1)

Publication Number Publication Date
SG99401A1 true SG99401A1 (en) 2003-10-27

Family

ID=19062444

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200203890A SG99401A1 (en) 2001-07-30 2002-06-27 Method and apparatus for optimizing auto gain control of read channel in a disk drive

Country Status (3)

Country Link
US (1) US6963459B2 (ja)
JP (1) JP3645505B2 (ja)
SG (1) SG99401A1 (ja)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7885282B2 (en) * 2003-07-24 2011-02-08 Seagate Technology Llc Dynamic control of physical layer quality on a serial bus
JP2006065918A (ja) * 2004-08-25 2006-03-09 Tdk Corp 磁気記録再生装置
JP4268108B2 (ja) * 2004-09-13 2009-05-27 富士通株式会社 磁気記録再生装置および磁気記録再生方法
JP4797136B2 (ja) * 2005-09-27 2011-10-19 日本電産サンキョー株式会社 磁気データ読取回路及びカード処理装置
JP4601546B2 (ja) * 2005-12-09 2010-12-22 三洋電機株式会社 光ディスク装置
JP4413199B2 (ja) 2006-03-23 2010-02-10 東芝ストレージデバイス株式会社 偏心補正方法、信号処理回路、磁気記憶装置及び垂直磁気記録媒体
JP2008103060A (ja) * 2006-09-20 2008-05-01 Fujitsu Ltd ヘッドｉｃ、リード回路及び媒体記憶装置
JP4724098B2 (ja) * 2006-11-29 2011-07-13 東芝ストレージデバイス株式会社 ヘッドｉｃ、リード回路及び媒体記憶装置
JP2009117002A (ja) * 2007-11-09 2009-05-28 Fujitsu Ltd ヘッドｉｃ、リード回路及び媒体記憶装置
JP2009134806A (ja) * 2007-11-30 2009-06-18 Fujitsu Ltd ヘッドｉｃ、リード回路及び媒体記憶装置
JP2009140585A (ja) * 2007-12-07 2009-06-25 Fujitsu Ltd ヘッドｉｃ、リード回路、媒体記憶装置及びヘッドｉｃのアンプゲイン調整方法
JP2010073295A (ja) * 2008-09-22 2010-04-02 Toshiba Storage Device Corp 磁気記録装置、制御装置および磁気記録装置制御方法
CN109036477B (zh) * 2017-06-09 2020-03-27 光宝科技股份有限公司 光碟机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0229925A2 (en) * 1985-11-30 1987-07-29 Kabushiki Kaisha Toshiba Recorded data reproducing apparatus
JPH10326403A (ja) * 1997-05-26 1998-12-08 Fujitsu Ltd 磁気ディスク装置
JPH11154336A (ja) * 1997-11-20 1999-06-08 Ricoh Co Ltd 光ディスク記録再生装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2610373B2 (ja) * 1991-01-30 1997-05-14 株式会社東芝 磁気記録再生装置
JPH0562202A (ja) 1991-09-04 1993-03-12 Canon Inc 情報再生装置
JPH06187733A (ja) 1992-12-18 1994-07-08 Ricoh Co Ltd 光ディスク装置
JPH06187643A (ja) 1992-12-18 1994-07-08 Ricoh Co Ltd 光ディスク装置
US5485323A (en) 1993-07-14 1996-01-16 International Business Machines Corporation Method and apparatus for moving a disk drive actuator away from a magnetic latch
JPH07254243A (ja) * 1994-03-15 1995-10-03 Fujitsu Ltd ディスク装置及びディスク媒体
JPH08161830A (ja) 1994-12-05 1996-06-21 Sharp Corp 光再生装置
JPH08316754A (ja) 1995-05-22 1996-11-29 Hitachi Ltd Ａｇｃアンプ制御回路
JPH0963198A (ja) 1995-08-29 1997-03-07 Toshiba Corp ヘッドの位置決めとパラメータの設定とを並行に処理可能なディスク装置及びこのディスク装置におけるパラメータ設定方法
JP3031226B2 (ja) 1995-12-26 2000-04-10 日本電気株式会社 磁気ディスク装置のｒ／ｗチャネル・パラメータの設定方法
JPH09288826A (ja) 1996-04-22 1997-11-04 Olympus Optical Co Ltd 光学的情報再生装置
JPH10144002A (ja) 1996-11-13 1998-05-29 Sony Corp 光ディスク装置および光ディスク再生方法
JPH10177768A (ja) 1996-12-13 1998-06-30 Sony Corp ディスク装置
KR100255207B1 (ko) 1997-01-28 2000-05-01 윤종용 하드 디스크 드라이브의 안정된 언래치 제어 방법
US6078453A (en) 1997-11-12 2000-06-20 Western Digital Corporation Method and apparatus for optimizing the servo read channel of a hard disk drive
JP2000132933A (ja) * 1998-10-22 2000-05-12 Internatl Business Mach Corp <Ibm> ヘッドのデータ書き込み制御方法およびそれを利用した記憶装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0229925A2 (en) * 1985-11-30 1987-07-29 Kabushiki Kaisha Toshiba Recorded data reproducing apparatus
JPH10326403A (ja) * 1997-05-26 1998-12-08 Fujitsu Ltd 磁気ディスク装置
JPH11154336A (ja) * 1997-11-20 1999-06-08 Ricoh Co Ltd 光ディスク記録再生装置

Also Published As

Publication number Publication date
JP3645505B2 (ja) 2005-05-11
US6963459B2 (en) 2005-11-08
JP2003045120A (ja) 2003-02-14
US20030021053A1 (en) 2003-01-30

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