JPH0376521B2 - - Google Patents

Info

Publication number
JPH0376521B2
JPH0376521B2 JP58059125A JP5912583A JPH0376521B2 JP H0376521 B2 JPH0376521 B2 JP H0376521B2 JP 58059125 A JP58059125 A JP 58059125A JP 5912583 A JP5912583 A JP 5912583A JP H0376521 B2 JPH0376521 B2 JP H0376521B2
Authority
JP
Japan
Prior art keywords
signal
signals
differential
positive
negative
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
Application number
JP58059125A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58185016A (ja
Inventor
Emu Beitei Robaato
Jei Petorosuki Piitaa
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.)
Hewlett Packard Japan Inc
Original Assignee
Yokogawa Hewlett Packard 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 Yokogawa Hewlett Packard Ltd filed Critical Yokogawa Hewlett Packard Ltd
Publication of JPS58185016A publication Critical patent/JPS58185016A/ja
Publication of JPH0376521B2 publication Critical patent/JPH0376521B2/ja
Granted 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Digital Magnetic Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
JP58059125A 1982-04-05 1983-04-04 直流成分再生装置 Granted JPS58185016A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/365,661 US4467374A (en) 1982-04-05 1982-04-05 Method and means for direct-current polarity restoration in magnetic recording
US365661 1994-12-29

Publications (2)

Publication Number Publication Date
JPS58185016A JPS58185016A (ja) 1983-10-28
JPH0376521B2 true JPH0376521B2 (en]) 1991-12-05

Family

ID=23439801

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58059125A Granted JPS58185016A (ja) 1982-04-05 1983-04-04 直流成分再生装置

Country Status (4)

Country Link
US (1) US4467374A (en])
EP (1) EP0091304B1 (en])
JP (1) JPS58185016A (en])
DE (1) DE3364156D1 (en])

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61120380A (ja) * 1984-11-16 1986-06-07 Sony Corp デジタル信号処理回路
US4686586A (en) * 1986-01-21 1987-08-11 Oki America, Inc. Read back circuit for recovering data from magnetic storage medium
JPS6394411A (ja) * 1986-10-07 1988-04-25 Fuji Electric Co Ltd デイスク記憶装置の読取信号再生回路
JP2598733B2 (ja) * 1992-03-06 1997-04-09 ローム株式会社 磁気記録用書込み回路および磁気記録装置
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
US5420726A (en) * 1994-02-17 1995-05-30 Maxtor Corporation Channel qualifier for a hard disk drive which differentiates a raw data signal before peak detection and qualification of the signal
JP3499034B2 (ja) * 1995-03-13 2004-02-23 富士通株式会社 非対称信号検出回路

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3617904A (en) * 1969-06-05 1971-11-02 Digitronics Corp Noise insensitive peak detector
US3727143A (en) * 1971-12-06 1973-04-10 Ampex Integrating level sensing circuit
US3898481A (en) * 1974-03-28 1975-08-05 Cincinnati Electronics Corp Signal pulse detector
US3991376A (en) * 1975-04-16 1976-11-09 Randam Electronics, Inc. Pulse height analyzer
US4016599A (en) * 1976-03-19 1977-04-05 Xerox Corporation Anti-shouldering read circuit for magnetic disk memory
JPS6343625Y2 (en]) * 1979-06-06 1988-11-14
GB2057226B (en) * 1979-07-10 1984-02-22 Mfe Ltd Decoding mfm data signals
US4323932A (en) * 1979-07-30 1982-04-06 Sperry Corporation Readback pulse compensator
US4371900A (en) * 1981-01-23 1983-02-01 Memorex Corporation Equalization of DC null in reproducing a high density recording
US4346411A (en) * 1981-02-17 1982-08-24 International Business Machines Corporation Amplitude sensitive three-level detector for derivative read back channel of magnetic storage device

Also Published As

Publication number Publication date
US4467374A (en) 1984-08-21
JPS58185016A (ja) 1983-10-28
EP0091304A1 (en) 1983-10-12
EP0091304B1 (en) 1986-06-18
DE3364156D1 (en) 1986-07-24

Similar Documents

Publication Publication Date Title
JPH0574126B2 (en])
JPH0376521B2 (en])
US3786201A (en) Audio-digital recording system
US3562726A (en) Dual track encoder and decoder
US20020015247A1 (en) High resolution wide range write precompensation
US4972276A (en) Regeneration system for digital magnetic recording information
JPS63114423A (ja) デ−タ復調方法
KR930011378B1 (ko) 3진데이타의 기록재생방법
US3311904A (en) Conversion of pulse phase signals to nrz signals
JPS61280007A (ja) デイスク形磁気記録再生装置の記録再生回路
JPS58194119A (ja) デイジタル磁気記録信号再生回路
JPH0376522B2 (en])
JPS6061955A (ja) 磁気ディスクデ−タ読み出し回路
JPS62175913A (ja) 磁気記録再生装置
JP2588907B2 (ja) 信号検出装置
JP2000021096A (ja) 磁気ディスク装置及びそれに用いる半導体デバイス
JPS62149006A (ja) 磁気記録再生装置
JPH01169705A (ja) 磁気装置の書き込み回路
JPH01134704A (ja) 垂直磁気記録再生回路
JPS62177705A (ja) 磁気記録装置
JPS62137707A (ja) 磁気記録再生装置
JPS60147905A (ja) 磁化反転パルス再生装置
JPH01171161A (ja) 光情報記録再生装置
JPH1196509A (ja) 磁気ディスク装置及びそれに用いる半導体デバイス
JPS62234205A (ja) デジタル磁気記録情報の再生方式