DE69430285D1 - Nullpegeleinstellschaltung für A/D Umsetzer in einer magnetischen Platteneinheit - Google Patents

Nullpegeleinstellschaltung für A/D Umsetzer in einer magnetischen Platteneinheit

Info

Publication number
DE69430285D1
DE69430285D1 DE69430285T DE69430285T DE69430285D1 DE 69430285 D1 DE69430285 D1 DE 69430285D1 DE 69430285 T DE69430285 T DE 69430285T DE 69430285 T DE69430285 T DE 69430285T DE 69430285 D1 DE69430285 D1 DE 69430285D1
Authority
DE
Germany
Prior art keywords
converters
magnetic disk
adjustment circuit
level adjustment
disk unit
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
DE69430285T
Other languages
English (en)
Other versions
DE69430285T2 (de
Inventor
Hiroshi Muto
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
Application granted granted Critical
Publication of DE69430285D1 publication Critical patent/DE69430285D1/de
Publication of DE69430285T2 publication Critical patent/DE69430285T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/124—Sampling or signal conditioning arrangements specially adapted for A/D converters
    • H03M1/129—Means for adapting the input signal to the range the converter can handle, e.g. limiting, pre-scaling ; Out-of-range indication
    • H03M1/1295—Clamping, i.e. adjusting the DC level of the input signal to a predetermined value
    • 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
    • G11B20/10037—A/D conversion, D/A conversion, sampling, slicing and digital quantisation or adjusting parameters thereof
    • 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
    • G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • G11B20/10203—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter baseline correction
    • 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
    • G11B20/10527—Audio or video recording; Data buffering arrangements
DE69430285T 1993-09-24 1994-07-04 Nullpegeleinstellschaltung für A/D Umsetzer in einer magnetischen Platteneinheit Expired - Fee Related DE69430285T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5238203A JP2809577B2 (ja) 1993-09-24 1993-09-24 ゼロレベル設定回路

Publications (2)

Publication Number Publication Date
DE69430285D1 true DE69430285D1 (de) 2002-05-08
DE69430285T2 DE69430285T2 (de) 2002-08-08

Family

ID=17026690

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69430285T Expired - Fee Related DE69430285T2 (de) 1993-09-24 1994-07-04 Nullpegeleinstellschaltung für A/D Umsetzer in einer magnetischen Platteneinheit

Country Status (4)

Country Link
US (2) US5602503A (de)
EP (1) EP0645770B1 (de)
JP (1) JP2809577B2 (de)
DE (1) DE69430285T2 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2809577B2 (ja) * 1993-09-24 1998-10-08 富士通株式会社 ゼロレベル設定回路
JP3499034B2 (ja) * 1995-03-13 2004-02-23 富士通株式会社 非対称信号検出回路
JPH08255303A (ja) * 1995-03-20 1996-10-01 Fujitsu Ltd アナログ信号の波形整形回路
US6151178A (en) * 1996-03-19 2000-11-21 Texas Instruments Incorporated Error estimation circuit and method using an analog-to-digital converter
US6023383A (en) * 1996-03-19 2000-02-08 Texas Instruments Incorporated Error estimation circuit and method for providing a read channel error signal
TW337051B (en) * 1996-11-29 1998-07-21 Philips Electronics Nv Analog-to-digital conversion
US6121806A (en) * 1998-10-06 2000-09-19 Mitsubishi Denki Kabushiki Kaisha Circuit for adjusting a voltage level in a semiconductor device
US6739509B2 (en) 2001-10-03 2004-05-25 Kimberly-Clark Worldwide, Inc. Registration mark detection using matched filtering
US6694205B2 (en) 2001-12-21 2004-02-17 Kimberly-Clark Worldwide, Inc. Binary registration mark detection using 3-state sensing and matched filtering
JP2003269378A (ja) * 2002-03-14 2003-09-25 San Medical Gijutsu Kenkyusho:Kk 遠心ポンプ
US7324162B2 (en) * 2004-10-13 2008-01-29 Cirrus Logic, Inc. Method and apparatus to improve ADC dynamic range in a video decoder
US9225253B2 (en) * 2012-10-23 2015-12-29 Microchip Technology Inc. High voltage switching linear amplifier and method therefor

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3783389A (en) * 1972-05-31 1974-01-01 Us Army Median frequency generator
US4395671A (en) * 1979-06-20 1983-07-26 Emhart Industries, Inc. Control system and method for motor starting
US4334185A (en) * 1980-12-18 1982-06-08 Motorola, Inc. Circuit for automatic gain control with constant response time
US4625240A (en) * 1984-07-25 1986-11-25 Eeco, Inc. Adaptive automatic gain control
US4924590A (en) * 1988-01-08 1990-05-15 Siemens Aktiengesellschaft Method for making metal core printed circuit board
JP2543177B2 (ja) * 1989-03-24 1996-10-16 松下電器産業株式会社 クランプ装置と自動利得制御装置
TW258797B (de) * 1990-08-24 1995-10-01 Sony Co Ltd
US5084700A (en) * 1991-02-04 1992-01-28 Thomson Consumer Electronics, Inc. Signal clamp circuitry for analog-to-digital converters
JP3039029B2 (ja) * 1991-08-09 2000-05-08 ソニー株式会社 光ディスクのデータ記録再生方法
JP3052523B2 (ja) * 1992-01-27 2000-06-12 株式会社日立製作所 再生波形の非線形補正ａ／ｄ変換方法及び装置
US5418660A (en) * 1991-12-09 1995-05-23 Hitachi, Ltd. Information processing apparatus for processing reproduction signal having nonlinear characteristics
JP2809577B2 (ja) * 1993-09-24 1998-10-08 富士通株式会社 ゼロレベル設定回路
US5477183A (en) * 1994-07-07 1995-12-19 Hughes Aircraft Company Automatic gain and level control circuit and method

Also Published As

Publication number Publication date
EP0645770A3 (de) 1999-02-17
US5731730A (en) 1998-03-24
JP2809577B2 (ja) 1998-10-08
JPH0793896A (ja) 1995-04-07
EP0645770B1 (de) 2002-04-03
DE69430285T2 (de) 2002-08-08
US5602503A (en) 1997-02-11
EP0645770A2 (de) 1995-03-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee