CN1006255B - 磁记录设备中的信号读出电路 - Google Patents

磁记录设备中的信号读出电路 Download PDF

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Publication number
CN1006255B
CN1006255B CN87105138.9A CN87105138A CN1006255B CN 1006255 B CN1006255 B CN 1006255B CN 87105138 A CN87105138 A CN 87105138A CN 1006255 B CN1006255 B CN 1006255B
Authority
CN
China
Prior art keywords
signal
waveform
pulse
amplitude
circuit
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
CN87105138.9A
Other languages
English (en)
Chinese (zh)
Other versions
CN87105138A (zh
Inventor
大内康英
青井基
西山延昌
田村乔
斋藤真
土屋铃二郎
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 Japan Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of CN87105138A publication Critical patent/CN87105138A/zh
Publication of CN1006255B publication Critical patent/CN1006255B/zh
Expired legal-status Critical Current

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    • 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
    • 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)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Digital Magnetic Recording (AREA)
CN87105138.9A 1986-07-25 1987-07-25 磁记录设备中的信号读出电路 Expired CN1006255B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61173646A JPH0775107B2 (ja) 1986-07-25 1986-07-25 磁気記録装置の信号再生回路
JP173646/86 1986-07-25

Publications (2)

Publication Number Publication Date
CN87105138A CN87105138A (zh) 1988-04-27
CN1006255B true CN1006255B (zh) 1989-12-27

Family

ID=15964471

Family Applications (1)

Application Number Title Priority Date Filing Date
CN87105138.9A Expired CN1006255B (zh) 1986-07-25 1987-07-25 磁记录设备中的信号读出电路

Country Status (5)

Country Link
US (1) US4823208A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPH0775107B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
KR (1) KR910009465B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CN (1) CN1006255B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3724572A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0736206B2 (ja) * 1988-05-28 1995-04-19 日本電気株式会社 ディジタルデータ再生回路
US5105316A (en) * 1989-11-20 1992-04-14 Seagate Technology, Inc. Qualification for pulse detecting in a magnetic media data storage system
DE4041717A1 (de) * 1990-12-24 1992-06-25 Thomson Brandt Gmbh Verfahren und schaltung zur regenerierung des binaeren bitstroms aus einem ternaeren signal
US5367411A (en) * 1991-08-02 1994-11-22 Hitachi, Ltd. Magnetic recording and reproducing apparatus with reproducing head of magnetoresistive type having control of magnetic bias level
US5384790A (en) * 1991-11-22 1995-01-24 Wangtek, Inc. Magnetic recording system with pulse qualification and error correction circuitry
JPH06187737A (ja) * 1992-12-16 1994-07-08 Canon Inc 情報記録再生装置
US5999506A (en) * 1996-08-22 1999-12-07 Matsushita Electric Industrial Co., Ltd. Data recording/reproducing device and recording medium
US6091687A (en) * 1997-12-19 2000-07-18 Philips Electronics N.A. Corporation Method and apparatus for maximum likelihood detection
JP2011192340A (ja) * 2010-03-12 2011-09-29 Fujitsu Frontech Ltd 磁気データ読取装置および誤読検出方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3571730A (en) * 1968-07-15 1971-03-23 Ibm Self-clocked binary data detection system with noise rejection
JPS50101881A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1974-01-12 1975-08-12
US4081756A (en) * 1976-12-30 1978-03-28 Sperry Rand Corporation Dual channel signal detector circuit
US4306194A (en) * 1979-10-11 1981-12-15 International Business Machines Corporation Data signal detection circuit
US4399474A (en) * 1981-08-10 1983-08-16 Ampex Corporation Automatic threshold tracking system
JPS58108831A (ja) * 1981-12-23 1983-06-29 Agency Of Ind Science & Technol ジヨセフソン素子によるラツチ回路
US4626933A (en) * 1983-08-18 1986-12-02 Amcodyne Incorporated Method and apparatus for qualifying data
JPS6050673A (ja) * 1983-08-29 1985-03-20 Nec Corp 信号検出回路
JPH05192992A (ja) * 1992-01-22 1993-08-03 Kawasaki Steel Corp 積層金属板のフランジアップ加工方法

Also Published As

Publication number Publication date
KR880002128A (ko) 1988-04-29
JPS6331073A (ja) 1988-02-09
JPH0775107B2 (ja) 1995-08-09
DE3724572A1 (de) 1988-01-28
CN87105138A (zh) 1988-04-27
DE3724572C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1990-12-20
US4823208A (en) 1989-04-18
KR910009465B1 (ko) 1991-11-16

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Legal Events

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C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C13 Decision
GR02 Examined patent application
C14 Grant of patent or utility model
GR01 Patent grant
C15 Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993)
OR01 Other related matters
ASS Succession or assignment of patent right

Owner name: HITACHI GLOBAL STORAGE TECHNOLOGIES JAPAN LTD.

Free format text: FORMER OWNER: HITACHI CO., LTD.

Effective date: 20050422

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20050422

Address after: Kanagawa, Japan

Patentee after: Hitachi Global Storage Technologies Japan, Ltd.

Address before: Tokyo, Japan

Patentee before: Hitachi, Ltd.

C17 Cessation of patent right
CX01 Expiry of patent term