KR920017049A - Magneto-optical recording and playback method - Google Patents

Magneto-optical recording and playback method Download PDF

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Publication number
KR920017049A
KR920017049A KR1019920001724A KR920001724A KR920017049A KR 920017049 A KR920017049 A KR 920017049A KR 1019920001724 A KR1019920001724 A KR 1019920001724A KR 920001724 A KR920001724 A KR 920001724A KR 920017049 A KR920017049 A KR 920017049A
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KR
South Korea
Prior art keywords
layer
magneto
reproducing
optical recording
intermediate layer
Prior art date
Application number
KR1019920001724A
Other languages
Korean (ko)
Other versions
KR100214035B1 (en
Inventor
마스미 오다
이사무 나까오
가쓰히사 아라다니
Original Assignee
오가 노리오
소니 가부시기가이샤
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Publication date
Application filed by 오가 노리오, 소니 가부시기가이샤 filed Critical 오가 노리오
Publication of KR920017049A publication Critical patent/KR920017049A/en
Application granted granted Critical
Publication of KR100214035B1 publication Critical patent/KR100214035B1/en

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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

Abstract

내용 없음No content

Description

광자기기록재생방식Magneto-optical recording and playback method

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

제1도는 본원 발명의 광자기기록재생방식의 일예의 설명도, 제2도는 본원 발명의 광자기기록매체의 일예의 요부의 약선적 확대단면도, 제3도는 본원 발명의 광자기기록재생방식의 약선적 사시도.1 is an explanatory diagram of one example of the magneto-optical recording and reproducing method of the present invention, and FIG. Shipping perspective view.

Claims (1)

최소한 기록층과, 재생층과, 이들 각 층 사이에 개재하는 중간층을 가진 광자기기록매체에 대하여, 재생시에는 최소한 기록층을 제외하고 재생층을 1방향으로자화시킨 상태에서, 그 자화방향으로 재생자계 Hr를 부여하여 독출광을 조사(照射)하고, 이 조사에 의해 독출광조사영역내에 최소한 고온영역과, 재생가능온도영역을 발생시키고, 상기 고온영역에서는 상기 중간층을 큐리온도 이상으로 승온시키고, 재생에 기여하는 층의 보자력(保磁力)을 HCA, 상기 재생층과 상기 중간층과의 사이의 자벽에 의한 자계를 Hw1라 하면, 상기 재생가능온도 영역에서는 Hr+HCA Hw1이 성립하도록 한 것을 특징으로 하는 광자기기록재생방식.For a magneto-optical recording medium having at least a recording layer, a reproducing layer, and an intermediate layer interposed between these layers, at the time of reproducing, the reproducing layer is magnetized in one direction except at least the recording layer and reproduced in the magnetization direction. giving a magnetic field H r poison outgoing light irradiation (照射) to, and by the irradiation to generate at least a high temperature region and, renewable temperature range in the dock outgoing light radiation area, in the high-temperature zone was raised to the intermediate layer by more than the Curie temperature When the coercive force of the layer contributing to regeneration is H CA , and the magnetic field due to the magnetic wall between the regeneration layer and the intermediate layer is H w1 , H r + H CA in the renewable temperature range. The magneto-optical recording and reproducing method characterized by the fact that H w1 is established. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920001724A 1991-02-08 1992-02-07 Magneto-optic recording/ reproducing method KR100214035B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP91-018072 1991-02-08
JP03018072A JP3106514B2 (en) 1991-02-08 1991-02-08 Magneto-optical recording / reproducing method

Publications (2)

Publication Number Publication Date
KR920017049A true KR920017049A (en) 1992-09-26
KR100214035B1 KR100214035B1 (en) 1999-08-02

Family

ID=11961464

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920001724A KR100214035B1 (en) 1991-02-08 1992-02-07 Magneto-optic recording/ reproducing method

Country Status (2)

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JP (1) JP3106514B2 (en)
KR (1) KR100214035B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100447159B1 (en) * 1998-08-21 2004-12-04 엘지전자 주식회사 magneto-optical recording medium

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2142767C (en) 1994-02-21 1998-11-17 Naoki Nishimura Magneto-optical recording medium, and information reproducing method using the medium
EP0686970A3 (en) * 1994-06-10 1996-07-24 Canon Kk Magneto-optical recording medium and reproducing method using the medium
JPH08203142A (en) 1994-09-08 1996-08-09 Canon Inc Optical recording medium, optical information recording and reproducing method, and optical information recording and reproducing device
US5818811A (en) * 1994-09-08 1998-10-06 Canon Kabushiki Kaisha Information recording and reproducing method for recording information on and reproducing information from an optical recording medium including a land portion divided into a plurality of information tracks
JPH08287537A (en) * 1995-04-14 1996-11-01 Canon Inc Magneto-optical recording medium and information reproducing method using the medium
US5896365A (en) * 1995-04-28 1999-04-20 Canon Kabushiki Kaisha Optical information recording medium capable of recording in lands and grooves without a track-jumping operation; optical information recording/reproducing apparatus using, and master disk exposure apparatus for producing the same
JP3049482B2 (en) * 1995-06-09 2000-06-05 富士通株式会社 Magneto-optical recording medium and reproducing method thereof
JPH0954993A (en) * 1995-08-15 1997-02-25 Canon Inc Magneto-optical recording medium and reproducing method of information in the medium
JP2001184801A (en) * 1999-12-24 2001-07-06 Sony Corp Optical recording medium and recording and reproducing device
JP2003233937A (en) 2002-02-06 2003-08-22 Sony Corp Optical recording and reproducing method and optical recording medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100447159B1 (en) * 1998-08-21 2004-12-04 엘지전자 주식회사 magneto-optical recording medium

Also Published As

Publication number Publication date
JP3106514B2 (en) 2000-11-06
KR100214035B1 (en) 1999-08-02
JPH04255946A (en) 1992-09-10

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