KR910015965A - 자계 발생 장치 - Google Patents

자계 발생 장치 Download PDF

Info

Publication number
KR910015965A
KR910015965A KR1019910001947A KR910001947A KR910015965A KR 910015965 A KR910015965 A KR 910015965A KR 1019910001947 A KR1019910001947 A KR 1019910001947A KR 910001947 A KR910001947 A KR 910001947A KR 910015965 A KR910015965 A KR 910015965A
Authority
KR
South Korea
Prior art keywords
substrate
magnetic field
generating device
leg portion
field generating
Prior art date
Application number
KR1019910001947A
Other languages
English (en)
Other versions
KR100210541B1 (ko
Inventor
히로시 에또
노부유끼 오까
다께히로 나가끼
Original Assignee
오오가 노리오
소니 가부시끼가이샤
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 오오가 노리오, 소니 가부시끼가이샤 filed Critical 오오가 노리오
Publication of KR910015965A publication Critical patent/KR910015965A/ko
Application granted granted Critical
Publication of KR100210541B1 publication Critical patent/KR100210541B1/ko

Links

Classifications

    • 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
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10502—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
    • G11B11/10504—Recording
    • G11B11/10508—Recording by modulating only the magnetic field at the transducer
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/10576—Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier

Abstract

내용 없음

Description

자계 발생 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 자계 조정으로 광자기 디스크내에 정보 신호를 수록하기 위한 정보 기록 장치의 예로서, 본 발명에 따른 정보 신호에 응답하여 변하는 자계를 발생하기 위한 장치의 실시예가 적용되어 있는 예를 도시하는 개략 도시도, 제2A,2B,2C 및 2D도는 제1도에 도시된 정보기를 장치에 적용되어 있는 본 발명에 따른 실시예를 각각 도시하는 개략 평면, 정면, 측면 및 저면도, 제3도는 제2A 내지 2D도에 도시된 본 발명에 따른 실시예의 개략 횡단면도.

Claims (4)

  1. 정보 신호에 응답하여 변화하는 자계를 발생하기 위한 장치에 있어서, 절연 물질로 이루어진 기판과, 상기 기판의 반대 표면중 한 표면에 부착되어 있으며, 중앙 레그부의 단부면이 상기 기판의 반대 표면중 다른 표면에 나타나도록 하기 위해 상기 기판에 형성된 구멍을 통해 뻗은 중앙 레그부를 가진 자기 코어와, 상기 자기 코어의 중앙 레그부에 감겨져 있으며 정보 신호에 응답하여 변화하는 전류가 공급되게 되는 코일 수단과, 전도층을 가진 기록 매체의 반대쪽에 있게 되도록 상기 기판의 반대 표면중 다른 표면에 부착된 얇은 전도층으로 형성되며 그 캐패시턴스 검출 전극 수단에서 야기되는 와전류 손실을 억제하기 위한 수단을 갖추고 있는 캐패시턴스 검출 전극수단을 포함해서 이루어진 자계 발생 장치.
  2. 제1항에 있어서, 와전류 손실을 억제하기 위한 상기수단이 상기 캐패시턴스검출 전극 수단에 형성된 분리 차단기를 포함하고 있는 자계 발생 장치.
  3. 제2항에 있어서, 상기 분리 차단기가 상기 자기 코어의 중앙 레그부의 단부면이 나타나게 되는 상기 기판의 반대 표면중 다른 표면의 일부분을 포함하도록 선형으로 뻗어 있는 자계 발생장치.
  4. 제2항에 있어서, 상기 캐패시턴스 검출 전극 수단이 상기 분리 차단기에 대응하는 부분을 제외하고 상기 기판의 반대 표면중 다른 표면의 거의 전체 부분을 커버하도록 형성되어 있는 자계 발생장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910001947A 1990-02-06 1991-02-05 자계 발생 장치 KR100210541B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2-26861 1990-02-06
JP2026861A JP2784829B2 (ja) 1990-02-06 1990-02-06 記録信号磁界発生装置

Publications (2)

Publication Number Publication Date
KR910015965A true KR910015965A (ko) 1991-09-30
KR100210541B1 KR100210541B1 (ko) 1999-07-15

Family

ID=12205072

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910001947A KR100210541B1 (ko) 1990-02-06 1991-02-05 자계 발생 장치

Country Status (6)

Country Link
US (1) US5111441A (ko)
EP (1) EP0441561B1 (ko)
JP (1) JP2784829B2 (ko)
KR (1) KR100210541B1 (ko)
DE (1) DE69121931T2 (ko)
MY (1) MY105311A (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5239425A (en) * 1990-02-28 1993-08-24 Alps Electric Co., Ltd. Magnetic head for magneto-optical recording device
JPH0512819A (ja) * 1991-07-05 1993-01-22 Teac Corp 信号記録装置
JP2813261B2 (ja) * 1992-02-14 1998-10-22 シャープ株式会社 光磁気ディスク用磁気ヘッド装置及び光磁気記録再生装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57167172A (en) * 1981-04-07 1982-10-14 Victor Co Of Japan Ltd High density information recording and reproducing system
US4605977A (en) * 1983-12-14 1986-08-12 Sperry Corporation Air bearing head displacement sensor and positioner
US4843600A (en) * 1985-09-13 1989-06-27 Canon Kabushiki Kaisha Recording head for magneto-optical information recording apparatus
JPH071560B2 (ja) * 1985-09-20 1995-01-11 オリンパス光学工業株式会社 光学式記録再生装置
CA1280207C (en) * 1986-01-23 1991-02-12 Masatoshi Hayakawa Device for producing a high frequency modulation magnetic field usedin magneto-optical recording
JPS635143A (ja) * 1986-06-23 1988-01-11 Nissan Motor Co Ltd 内燃機関のノツキング制御装置
US4931887A (en) * 1988-02-01 1990-06-05 International Business Machines Corporation Capacitive measurement and control of the fly height of a recording slider
JPH0695405B2 (ja) * 1988-04-07 1994-11-24 シャープ株式会社 光磁気デイスク装置
DE69029048T2 (de) * 1989-04-19 1997-03-20 Hitachi Ltd Magnetooptische Aufzeichnungs- und Wiedergabeverfahren, magnetooptische Speichervorrichtung
EP0635827B1 (en) * 1989-08-22 1997-07-23 Sony Corporation Magnetic head position control system

Also Published As

Publication number Publication date
EP0441561A3 (en) 1993-07-14
JP2784829B2 (ja) 1998-08-06
JPH03232102A (ja) 1991-10-16
KR100210541B1 (ko) 1999-07-15
MY105311A (en) 1994-09-30
EP0441561A2 (en) 1991-08-14
US5111441A (en) 1992-05-05
EP0441561B1 (en) 1996-09-11
DE69121931D1 (de) 1996-10-17
DE69121931T2 (de) 1997-01-30

Similar Documents

Publication Publication Date Title
SE8003001L (sv) Magnetanordning for omvandling av en magnetoresistans
US4535369A (en) Magnetic recording and reproducing apparatus
KR920013258A (ko) 자기성 전기저항 센서
KR900018915A (ko) 수직기록 및 재생용 박막 자기 헤드
KR900000704A (ko) 왜곡측정방법 및 왜곡측정장치
KR960002150A (ko) 개선된 오프-트랙 성능을 위한 집적 자기저항성 헤드
KR930003021A (ko) 박막 자기 헤드
KR970050142A (ko) 엠알 요소를 이용하는 검출부와 포화층을 갖는 자기 기록 시스템
US4635152A (en) Magnetic resonance-type playback apparatus including a magnetic material having magnetic anisotropy
KR880004433A (ko) 회전자기 헤드 장치
KR910015965A (ko) 자계 발생 장치
KR870008284A (ko) 자기헤드
KR920700442A (ko) 소형 매트릭스 구조를 갖는 다중 트랙 기록 자기 헤드
KR890702183A (ko) 박층 자기 헤드의 그라인딩의 종료 탐지방법
KR910005233A (ko) 자기헤드
KR900016948A (ko) 자기기록 장치
KR910008656A (ko) 박막 자기 헤드
KR870009422A (ko) 수은 스위치 장치
KR920700441A (ko) 자기 기록 헤드 및 이 헤드를 포함한 자기 테이프 기록 장치
SE7708262L (sv) Magnetisk domenanordning
JPS5721883A (en) Magnetic reluctance effect element
JPS56159831A (en) Reluctance effect type head
KR970071482A (ko) 자기저항소자
JPS61184711A (ja) 薄膜磁気ヘツド
JPS57191824A (en) Magneto-resistance effect head

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20090410

Year of fee payment: 11

LAPS Lapse due to unpaid annual fee