KR880011753A - Magneto-optical memory with floating magnetic heads. - Google Patents

Magneto-optical memory with floating magnetic heads. Download PDF

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Publication number
KR880011753A
KR880011753A KR1019880001464A KR880001464A KR880011753A KR 880011753 A KR880011753 A KR 880011753A KR 1019880001464 A KR1019880001464 A KR 1019880001464A KR 880001464 A KR880001464 A KR 880001464A KR 880011753 A KR880011753 A KR 880011753A
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magneto
recording
magnetic field
optical
memory device
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KR1019880001464A
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KR910002755B1 (en
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다게시 나가오
마사히로 오지마
요시노리 미야무라
도요지 오구와기
요우이지 가와구보
요시노리 다게우지
유우소우 야마구찌
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미다 가쓰시게
가부시기가이샤 히다찌세이사꾸쇼
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    • 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
    • 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
    • G11B11/10502—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
    • G11B11/10517—Overwriting or erasing
    • 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
    • G11B11/10532—Heads
    • 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
    • G11B11/1058—Flying heads

Abstract

내용 없음No content

Description

부상형 자기헤드를 가지는 광자기 기억장치Magneto-optical memory with floating magnetic head

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 제1실시예를 도시한 구성도.1 is a block diagram showing a first embodiment of the present invention.

제2도는 (a)~(d)는 본 발명에 있어서 정보기록의 동작을 도시한 도면.2 (a) to (d) show the operation of information recording in the present invention.

제3도는 본 발명에서 사용하는 자기헤드의 1구조예를 도시한 도면.3 is a diagram showing one structural example of a magnetic head used in the present invention.

Claims (16)

자장인가 수단에 의해 기록정보에 따라 극성반전 혹은 강도 변조된 자장을 기록체위의 광자기 기록막에 인가함과 동시에 광헤드에서 고출력의 레이저광을 연속조사하는 것에 의해 정봉의 기록을 행하는 광자기 기억장치에 있어서, 상기 자장인가 수단으로서 상기 기록체를 끼워서 상기 기록체를 끼워서 상기 광헤드와 대향시켜서 마련한 부상형 자기헤드를 사용하여 상기 기록체의 기판쪽에서 광조사, 기록막쪽에서 자장인가를 행하는 것을 특징으로하는 광자기 기억장치.Magneto-optical memory for recording positive peaks by applying a magnetic field whose polarity is reversed or intensity-modulated in accordance with the recording information by the magnetic field applying means to the magneto-optical recording film on the recording body and continuously irradiating a high power laser beam from the optical head. In the apparatus, as the magnetic field applying means, the magnetic field is applied from the substrate side of the recording material to the magnetic field application from the recording film side by using the floating magnetic head provided by sandwiching the recording material to sandwich the recording material so as to face the optical head. Characterized by magneto-optical storage. 특허청구의 범위 제1항에 있어서, 상기 부상형 자기헤드는 그 부상량이 1㎛이상인 것을 특징으로 하는 광자기 기억장치.The magneto-optical memory device according to claim 1, wherein the floating magnetic head has a floating amount of 1 µm or more. 특허청구의 범위 제1항에 있어서, 상기 부상형 자기헤드는 기록소거에 대해 유효한 자장인가 영역의 넓이가 0.1㎜×0.1㎜이상, 1㎜×1㎜이하인 것을 특징으로 하는 광자기 기억장치.The magneto-optical memory device according to claim 1, wherein the floating magnetic head has an area of at least 0.1 mm x 0.1 mm and less than 1 mm x 1 mm effective for recording erasing. 특허청구의 범위 제1항에 있어서, 상기 부상형 자기헤드는 상기 유효자장인가영역이 트랙방향보다도 그 직교방향으로 넓은 것을 특징으로 하는 광자기 기억장치.The magneto-optical memory device according to claim 1, wherein the floating magnetic head has an effective magnetic field applying region wider in the orthogonal direction than the track direction. 특허청구의 범위 제1항에 있어서, 상기 부상형 자기헤드에 의한 기록 주파수가 2㎒이상인 것을 특징으로 하는 광자기 기억장치.The magneto-optical memory device according to claim 1, wherein a recording frequency of said floating magnetic head is 2 MHz or more. 특허청구의 범위 제1항에 있어서, 상기 부상형 자기헤드는 상기 기록체의 진행방향을 따라서 중식측위에 적어도 1개이상의 원형오목 부분 혹은 관통구멍을 마련한 슬라이더를 가지는 것을 특징으로 하는 광자기 기억장치.The magneto-optical memory device according to claim 1, wherein the floating magnetic head has a slider provided with at least one circular recessed portion or through-holes on the lunch side along the traveling direction of the recording medium. . 특허청구의 범위 제1항에 있어서, 상기 부상형 자기헤드는 비자성 재료로 되는 슬라이더를 가지는 것을 특징으로 하는 광자기 기억장치.The magneto-optical memory device according to claim 1, wherein the floating magnetic head has a slider made of a nonmagnetic material. 특허청구의 범위 제1항에 있어서, 상기 기록체는 한쪽면에만 상기 광자기 기록말을 갖고 상기 기록막위에 1㎛이상 20㎛이하의 보호막이 형성되어 있는 것을 특징으로 하는 광자기 기억장치.The magneto-optical memory device according to claim 1, wherein the recording medium has the magneto-optical recording end only on one surface thereof, and a protective film of 1 m or more and 20 m or less is formed on the recording film. 특허청구의 범위 제8항에 있어서, 상기 기록체는 상기 보호막에 대향해서 방진기구가 마련되어진 카아트리지에 수납되어 교환가능하다는 것을 특징으로 하는 광자기 기억장치.9. The magneto-optical memory device according to claim 8, wherein the recording medium is housed in a cartridge provided with a dustproof mechanism opposite the protective film, and is replaceable. 특허청구의 범위 제1항에 있어서, 상기 광헤드는 파장, 출력, 잡음특성이 다른 2개의 반도체 레이저칩을 동일한 패키지내 수납한 레이저 어레이 광원을 가지는 것을 특징으로 하는 광자기 기억장치.The magneto-optical memory device according to claim 1, wherein the optical head has a laser array light source in which two semiconductor laser chips having different wavelengths, outputs, and noise characteristics are housed in the same package. 기판위에 마련되어진 기록막을 가지는 기록체에 대하여 상기 기판쪽에서 광조사하는 광조사 수단으로서 기록시에 고출력 레이저광을 연결조사하는 광조사 수단, 상기 기록체를 끼워서 상기 광헤드와 대향해서 마련되어 기록시에 기록 정보에 따라 극성반전 혹은 강도변조된 자장을 상기 기록막에 인가하는 자장인가 수단으로서, 상기 기록체의 이동에 의해 상기 그 기록체와의 동작 중 일정하게 유지되는 자장인가 수단을 가지는 것을 특징으로 하는 광자기 기억장치.Light irradiation means for irradiating a recording body provided with a recording film on a substrate from the substrate side, the light irradiation means for irradiating a high-power laser light at the time of recording; Magnetic field applying means for applying a magnetic field of polarity inversion or intensity modulation in accordance with recording information to the recording film, the magnetic field applying means being constantly maintained during operation with the recording material by movement of the recording material Magneto-optical storage. 특허청구의 범위 제11항에 있어서, 상기 자장인가 수단은 상기 기록체와 대향하는 면을 가지고 상기 공기압에 의해 부상하는 슬라이더 부분과 그 슬라이더 부분에 마련되어 상기 자장을 발생하는 자장 발생 부분을 가지는 것을 특징으로 하는 광자기 기억장치.12. The magnetic field applying means according to claim 11, wherein the magnetic field applying means has a surface facing the recording body and has a slider portion floating by the air pressure and a magnetic field generating portion provided at the slider portion to generate the magnetic field. Magneto-optical storage. 특허청구의 범위 제11항에 있어서, 상기 기록체와의 간격이 1㎛이상인 것을 특징으로 하는 광자기 기억장치.The magneto-optical memory device according to claim 11, wherein a distance from the recording medium is 1 m or more. 특허청구의 범위 제12항에 있어서, 상기 자장발생 부분은 상기 기록체와 대향하는 자장발생영역의 넓이가 0.1㎜×0.1㎜이상, 1㎜×1㎜이하인 것을 특징으로 하는 광자기 기억장치.13. The magneto-optical memory device according to claim 12, wherein the magnetic field generating portion has an area of a magnetic field generating region facing the recording medium of 0.1 mm x 0.1 mm or more and 1 mm x 1 mm or less. 특허청구의 범위 제12항에 있어서, 상기 기록체는 상기 기록막위에 1㎛이상 20㎛이하의 보호막을 가지는 것을 특징으로 하는 광자기 기억장치.The magneto-optical memory device according to claim 12, wherein the recording medium has a protective film of 1 µm or more and 20 µm or less on the recording film. 광자기 디스크를 회전시키는 회전기구, 그 광자기 디스크에 대하여 그 기판쪽에서 과아조사하여 기록시에 일정출력의 레이저광을 출력하는 광헤드, 상기 광자기 디스크를 끼워서 상기 헤드와 대향해서 마련되어 광자기 디스크의 회전에 따른 공기압에 의해 광자기 디스크와의 간격이 일정하게 유지됨과 동시에 기록시에 2㎒이상의 주파수로 변조되어 디스크면에 수직 방향의 자장을 발생하는 자기헤드, 상기 자기헤드를 지지하여 상기 광헤드와 연동시켜서 상기 자기헤드를 상기 광자기 디스크의 지름방향으로 이동하는 이동기구를 구비하는 것을 특징으로 하는 광자기 디스크장치.A rotating mechanism for rotating the magneto-optical disk, an optical head for over-irradiating the magneto-optical disk from the substrate side and outputting laser light of a constant output during recording, and opposing the head with the magneto-optical disk inserted. The magnetic head maintains a constant distance from the magneto-optical disk due to the air pressure caused by the rotation of the magnetic head and modulates the magnetic field in a direction perpendicular to the disk surface at the time of recording. The magnetic head supports the magnetic head. And a moving mechanism for interlocking with the head to move the magnetic head in the radial direction of the magneto-optical disk. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880001464A 1987-03-06 1988-02-15 Magneto-optical storage device KR910002755B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP62-50040 1987-03-06
JP87-50040 1987-03-06
JP62050040A JP2575687B2 (en) 1987-03-06 1987-03-06 Magneto-optical storage device

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KR880011753A true KR880011753A (en) 1988-10-31
KR910002755B1 KR910002755B1 (en) 1991-05-04

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DE3804733A1 (en) 1988-09-15
KR910002755B1 (en) 1991-05-04
DE3804733C2 (en) 1992-08-06
JP2575687B2 (en) 1997-01-29
JPS63217548A (en) 1988-09-09

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