KR890004290A - 이진 정보 기록 방법 및 장치 - Google Patents

이진 정보 기록 방법 및 장치 Download PDF

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Publication number
KR890004290A
KR890004290A KR1019880010641A KR880010641A KR890004290A KR 890004290 A KR890004290 A KR 890004290A KR 1019880010641 A KR1019880010641 A KR 1019880010641A KR 880010641 A KR880010641 A KR 880010641A KR 890004290 A KR890004290 A KR 890004290A
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KR
South Korea
Prior art keywords
pulse
binary information
laser
memory layer
recording method
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Application number
KR1019880010641A
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English (en)
Inventor
힌리히 크라세만 얀
Original Assignee
이반 밀러 레르너
엔.브이.필립스 글로아이람펜파브리켄
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Application filed by 이반 밀러 레르너, 엔.브이.필립스 글로아이람펜파브리켄 filed Critical 이반 밀러 레르너
Publication of KR890004290A publication Critical patent/KR890004290A/ko

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/10—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using electron beam; Record carriers 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
    • G11B11/1053—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 to compensate for the magnetic domain drift or time shift
    • 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
    • G11B11/10506—Recording by modulating only the light beam of 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
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10584—Record carriers characterised by the selection of the material or by the structure or form characterised by the form, e.g. comprising mechanical protection elements

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

내용 없음

Description

이진 정보 기록 방법 및 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1 도는 회전 디스크상의 자기-광학 기억층을 구비하는 기억 장치 개략도. 제 2 도는 회전 디스크상의 자기-광학 기억층 및 인접층의 구조 개략도.

Claims (3)

1비트동안 제한된 기간의 레이저 빔에 의해 기억층의 선택 영역을 거의 쿠리에 온도까지 가열함으로써 자기 광학 기억층에 이진 정보를 기록하기 위한 방법에 있어서, 제한된 기간의 각 레이저 빔이 펄스간격에 의해 분리되는 복수의 짧은 펄스로 나누어지며, 각각의 펄스는 기억층의 동일 선택영역에 입사되며, 펄스 각각은 기억층의 노출영역을 쿠리에 온도까지 가열시키는 에너지를 가지는 것을 특징으로 하는 이진 정보 기록 방법.
제 1 항에 있어서, 펄스 및 펄스 간격은 거의 동일한 길이를 가지는 것을 특징으로 하는 이진 정보 기록 방법.
제 1 항의 방법을 이행하기 위한 장치에 있어서, 이진 정보의 소스에 의해 구동될 수 있는 레이저를 구비하며, 펄스 발생기는 정보 소스와 레이저사이에 배치되어, 예정된 길이의 예정된 수의 구동펄스 및 각 정보 신호로부터의 펄스 간격을 추출하며, 상기 레이저는 상기 구동 펄스에 의해 구동되는 것을 특징으로 하는 이진 정보 기록 장치.
※ 참고사항 : 최초출원내용에 의하여 공개하는 것임.
KR1019880010641A 1987-08-25 1988-08-22 이진 정보 기록 방법 및 장치 KR890004290A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3728237.9 1987-08-25
DE19873728237 DE3728237A1 (de) 1987-08-25 1987-08-25 Verfahren zum schreiben von binaerer information in eine magnetooptische speicherschicht und anordnung zur durchfuehrung des verfahrens

Publications (1)

Publication Number Publication Date
KR890004290A true KR890004290A (ko) 1989-04-21

Family

ID=6334390

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880010641A KR890004290A (ko) 1987-08-25 1988-08-22 이진 정보 기록 방법 및 장치

Country Status (5)

Country Link
US (1) US4945528A (ko)
EP (1) EP0304992A3 (ko)
JP (1) JPS6470947A (ko)
KR (1) KR890004290A (ko)
DE (1) DE3728237A1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210004355A (ko) * 2019-07-04 2021-01-13 주식회사 아이에스원 고로 슬래그의 용융 온도 강하제

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US5140471A (en) * 1989-02-10 1992-08-18 Kabushiki Kaisha Toshiba Apparatus for driving objective lens
EP0387052B1 (en) * 1989-03-09 1995-09-20 Canon Kabushiki Kaisha Magneto-optical recording apparatus having means for delaying an input signal for preventing bit shift
US5963346A (en) * 1997-12-12 1999-10-05 Northrop Grumman Corporation Scatter noise reduction in holographic storage systems by two-step write
US6016210A (en) * 1997-12-15 2000-01-18 Northrop Grumman Corporation Scatter noise reduction in holographic storage systems by speckle averaging
US6118560A (en) * 1998-02-06 2000-09-12 Northrop Grumman Corporation Scatter noise reduction in holographic storage systems by signal-noise orthogonalization
JP2008277586A (ja) 2007-04-27 2008-11-13 Toshiba Corp 磁気素子、磁気記録ヘッド及び磁気記録装置
KR20080108016A (ko) 2007-06-07 2008-12-11 가부시끼가이샤 도시바 자기 기록 헤드 및 자기 기록 장치
JP4358279B2 (ja) 2007-08-22 2009-11-04 株式会社東芝 磁気記録ヘッド及び磁気記録装置
US8994587B2 (en) 2010-05-14 2015-03-31 Qualcomm Incorporated Compressed sensing for navigation data
JP4919901B2 (ja) * 2007-09-04 2012-04-18 株式会社東芝 磁気記録ヘッド及び磁気記録装置
JP2009070439A (ja) * 2007-09-11 2009-04-02 Toshiba Corp 磁気記録ヘッド及び磁気記録装置
JP4929108B2 (ja) * 2007-09-25 2012-05-09 株式会社東芝 磁気ヘッドおよび磁気記録装置
JP2009080875A (ja) 2007-09-25 2009-04-16 Toshiba Corp 磁気ヘッド及び磁気記録装置
JP2009080878A (ja) * 2007-09-25 2009-04-16 Toshiba Corp 磁気記録ヘッドおよび磁気記録装置
JP5376880B2 (ja) * 2007-09-27 2013-12-25 株式会社東芝 磁気記録ヘッド及び磁気記録装置
JP5361259B2 (ja) 2008-06-19 2013-12-04 株式会社東芝 スピントルク発振子、磁気記録ヘッド、磁気ヘッドアセンブリ及び磁気記録装置
JP2010003353A (ja) 2008-06-19 2010-01-07 Toshiba Corp 磁気記録ヘッド、磁気ヘッドアセンブリ及び磁気記録装置
JP5377893B2 (ja) * 2008-06-19 2013-12-25 株式会社東芝 磁気ヘッドアセンブリおよび磁気記録再生装置
JP2010040060A (ja) * 2008-07-31 2010-02-18 Toshiba Corp 高周波アシスト記録用磁気ヘッドおよびそれを用いた磁気記録装置
JP2010040126A (ja) 2008-08-06 2010-02-18 Toshiba Corp 磁気記録ヘッド、磁気ヘッドアセンブリ及び磁気記録装置
JP5173750B2 (ja) * 2008-11-06 2013-04-03 株式会社東芝 スピントルク発振子、磁気記録ヘッド、磁気ヘッドアセンブリ及び磁気記録装置
JP5558698B2 (ja) * 2008-11-28 2014-07-23 株式会社東芝 磁気記録ヘッド、磁気ヘッドアセンブリ、磁気記録装置及び磁気記録方法
JP5606482B2 (ja) 2012-03-26 2014-10-15 株式会社東芝 磁気ヘッド、磁気ヘッドアセンブリ、磁気記録再生装置及び磁気ヘッドの製造方法

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210004355A (ko) * 2019-07-04 2021-01-13 주식회사 아이에스원 고로 슬래그의 용융 온도 강하제

Also Published As

Publication number Publication date
EP0304992A2 (de) 1989-03-01
JPS6470947A (en) 1989-03-16
US4945528A (en) 1990-07-31
EP0304992A3 (de) 1990-03-14
DE3728237A1 (de) 1989-03-09

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