KR100442070B1 - 자벽 이동형 광자기 기록 매체, 광자기 기록 매체의 재생 방법 및 재생 장치 - Google Patents

자벽 이동형 광자기 기록 매체, 광자기 기록 매체의 재생 방법 및 재생 장치 Download PDF

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Publication number
KR100442070B1
KR100442070B1 KR10-2001-0067370A KR20010067370A KR100442070B1 KR 100442070 B1 KR100442070 B1 KR 100442070B1 KR 20010067370 A KR20010067370 A KR 20010067370A KR 100442070 B1 KR100442070 B1 KR 100442070B1
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KR
South Korea
Prior art keywords
layer
recording
magnetic
reproduction
temperature
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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 - Fee Related
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KR10-2001-0067370A
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English (en)
Korean (ko)
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KR20020037676A (ko
Inventor
히로끼도모유끼
Original Assignee
캐논 가부시끼가이샤
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Publication of KR20020037676A publication Critical patent/KR20020037676A/ko
Application granted granted Critical
Publication of KR100442070B1 publication Critical patent/KR100442070B1/ko
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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
    • 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
    • G11B11/10515—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
    • 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
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material
    • G11B11/10589—Details
    • G11B11/10593—Details for improving read-out properties, e.g. polarisation of light
KR10-2001-0067370A 2000-11-15 2001-10-31 자벽 이동형 광자기 기록 매체, 광자기 기록 매체의 재생 방법 및 재생 장치 Expired - Fee Related KR100442070B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000348161A JP2002157792A (ja) 2000-11-15 2000-11-15 光磁気記録媒体及び該媒体のための再生方法、再生装置
JPJP-P-2000-00348161 2000-11-15

Publications (2)

Publication Number Publication Date
KR20020037676A KR20020037676A (ko) 2002-05-22
KR100442070B1 true KR100442070B1 (ko) 2004-07-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR10-2001-0067370A Expired - Fee Related KR100442070B1 (ko) 2000-11-15 2001-10-31 자벽 이동형 광자기 기록 매체, 광자기 기록 매체의 재생 방법 및 재생 장치

Country Status (6)

Country Link
US (1) US6707767B2 (enExample)
EP (1) EP1207526A2 (enExample)
JP (1) JP2002157792A (enExample)
KR (1) KR100442070B1 (enExample)
CN (1) CN1201316C (enExample)
TW (1) TW518559B (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002208193A (ja) * 2001-01-09 2002-07-26 Canon Inc 光磁気記録媒体およびその情報再生方法
JP2003257100A (ja) * 2001-12-27 2003-09-12 Canon Inc 磁壁移動型光磁気記録媒体の記録方法
JP4095364B2 (ja) * 2002-07-19 2008-06-04 キヤノン株式会社 磁壁移動型光磁気記録媒体の記録再生装置
JP3977238B2 (ja) * 2002-12-03 2007-09-19 キヤノン株式会社 光磁気記録媒体
KR100785034B1 (ko) * 2006-12-06 2007-12-11 삼성전자주식회사 자구벽 이동을 이용한 정보 저장 장치, 그 제조방법 및 그동작방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0583720A2 (en) * 1992-08-18 1994-02-23 Sony Corporation Magnetooptical recording medium
JPH09312043A (ja) * 1996-05-22 1997-12-02 Tosoh Corp 光磁気記録媒体及びその再生方法
JPH11162030A (ja) * 1997-09-25 1999-06-18 Tosoh Corp 光磁気記録媒体および光磁気記録媒体の再生方法
KR20000029419A (ko) * 1998-10-30 2000-05-25 아끼구사 나오유끼 광자기 기록 매체 및 광자기 기록 매체의 제조 방법
KR20000042134A (ko) * 1998-12-24 2000-07-15 구자홍 광자기 기록매체 및 그 재생방법

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5384758A (en) * 1991-12-02 1995-01-24 Nikon Corporation Reproduction-only magneto-optical disk with selectively exchange coupled layers, and reproduction method and reproduction apparatus therefor
JP3210178B2 (ja) 1994-06-10 2001-09-17 キヤノン株式会社 光磁気記録媒体及び該媒体の情報再生方法
JP3332458B2 (ja) 1993-04-02 2002-10-07 キヤノン株式会社 光磁気記録媒体
EP0618572B1 (en) 1993-04-02 2002-07-03 Canon Kabushiki Kaisha Magnetooptical recording medium on which high-density information can be recorded and method of reproducing the recorded information
EP0686970A3 (en) 1994-06-10 1996-07-24 Canon Kk Magneto-optical recording medium and playback method using this medium
JPH08287537A (ja) 1995-04-14 1996-11-01 Canon Inc 光磁気記録媒体及び該媒体を用いた情報再生方法
US5771211A (en) * 1995-04-26 1998-06-23 Sanyo Electric Co., Ltd. Magneto-optical recording media having a reading layer with a specified range of temperature coefficients of a kerr rotation angle
JPH1131343A (ja) * 1997-07-08 1999-02-02 Canon Inc 光磁気記録再生方法及び光磁気記録再生装置と光磁気記録方法
JP3647219B2 (ja) 1997-09-01 2005-05-11 キヤノン株式会社 磁性記録媒体の信号再生方法
JP3703315B2 (ja) * 1997-10-01 2005-10-05 キヤノン株式会社 光磁気記録再生方法及びその再生装置
JPH11353732A (ja) * 1998-06-10 1999-12-24 Canon Inc 光磁気記録再生方法及び装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0583720A2 (en) * 1992-08-18 1994-02-23 Sony Corporation Magnetooptical recording medium
JPH09312043A (ja) * 1996-05-22 1997-12-02 Tosoh Corp 光磁気記録媒体及びその再生方法
JPH11162030A (ja) * 1997-09-25 1999-06-18 Tosoh Corp 光磁気記録媒体および光磁気記録媒体の再生方法
KR20000029419A (ko) * 1998-10-30 2000-05-25 아끼구사 나오유끼 광자기 기록 매체 및 광자기 기록 매체의 제조 방법
KR20000042134A (ko) * 1998-12-24 2000-07-15 구자홍 광자기 기록매체 및 그 재생방법

Also Published As

Publication number Publication date
TW518559B (en) 2003-01-21
CN1201316C (zh) 2005-05-11
US6707767B2 (en) 2004-03-16
KR20020037676A (ko) 2002-05-22
JP2002157792A (ja) 2002-05-31
EP1207526A2 (en) 2002-05-22
CN1355527A (zh) 2002-06-26
US20020085457A1 (en) 2002-07-04

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