ES2109419T3 - Metodo y dispositivo para registrar informacion en un portador de registro que tiene una capa de registro que, cuando se calienta, experimenta un cambio opticamente detectable. - Google Patents

Metodo y dispositivo para registrar informacion en un portador de registro que tiene una capa de registro que, cuando se calienta, experimenta un cambio opticamente detectable.

Info

Publication number
ES2109419T3
ES2109419T3 ES93201333T ES93201333T ES2109419T3 ES 2109419 T3 ES2109419 T3 ES 2109419T3 ES 93201333 T ES93201333 T ES 93201333T ES 93201333 T ES93201333 T ES 93201333T ES 2109419 T3 ES2109419 T3 ES 2109419T3
Authority
ES
Spain
Prior art keywords
signal
impulses
radiation
signal level
detectable change
Prior art date
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 - Lifetime
Application number
ES93201333T
Other languages
English (en)
Inventor
Johannes Hendrikus M Spruit
Bernardus Antonius J Jacobs
Wilhelmus Hendrikus A Bardoel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
Philips Electronics NV
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 Koninklijke Philips Electronics NV, Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Application granted granted Critical
Publication of ES2109419T3 publication Critical patent/ES2109419T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • 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
    • G11B11/10595—Control of operating function
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Abstract

CUANDO SE GRABA INFORMACION EN UN SOPORTE DE GRABACION (1) QUE TIENE UNA CAPA DE GRABACION (2), LA CAPA DE GRABACION ES EXPLORADA POR MEDIO DE UN RAYO DE RADIACION (71) CUYO PODER DE RADIACION TIENE UNA VARIACION PULSATORIA. COMO RESULTADO DEL CALENTAMIENTO PRODUCIDO POR LOS IMPULSOS DE RADIACION, LA CAPA DE GRABACION (2) SE SOMETE A UN CAMBIO OPTICAMENTE DETECTABLE. UN CIRCUITO DE GENERACION DE SEÑAL DE ESCRITURA (78) CONVIERTE UNA SEÑAL DE INFORMACION V (T) EN UN A SEÑAL DE ESCRITURA G (T) QUE TIENE UNA PATRON PULSATORIO CUYO PATRON DE IMPULSO COMPRENDE IMPULSOS DE UN NIVEL DE SEÑAL ALTO QUE ALTERNA CON INTERVALOS DE UN NIVEL DE SEÑAL BAJO. UN CIRCUITO DE CONTROL (78) FIJA EL PODER DEL RAYO DE RADIACION (71) EN UN VALOR FIJADO POR EL NIVEL DE LA SEÑAL EN LA SEÑAL DE ESCRITURA. EL NIVEL DE SEÑAL DENTRO DE LOS IMPULSOS DECRECE, MIENTRAS QUE EL VALOR DE SEÑAL DE LA SEÑAL DE ESCRITURA G (T) AUMENTA EN LOS INTERVALOS. COMO RESULTADO LA INFLUENCIA EJERCIDA POR LOS IMPULSOS DE RADIACION PREVIOSSOBRE LA TEMPERATURA EN EL AREA DE EXPLORACION (73) ES COMPENSADO.
ES93201333T 1992-05-13 1993-05-07 Metodo y dispositivo para registrar informacion en un portador de registro que tiene una capa de registro que, cuando se calienta, experimenta un cambio opticamente detectable. Expired - Lifetime ES2109419T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92201361 1992-05-13

Publications (1)

Publication Number Publication Date
ES2109419T3 true ES2109419T3 (es) 1998-01-16

Family

ID=8210604

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93201333T Expired - Lifetime ES2109419T3 (es) 1992-05-13 1993-05-07 Metodo y dispositivo para registrar informacion en un portador de registro que tiene una capa de registro que, cuando se calienta, experimenta un cambio opticamente detectable.

Country Status (6)

Country Link
US (1) US5321682A (es)
JP (1) JPH0620278A (es)
KR (1) KR100256386B1 (es)
DE (1) DE69313919T2 (es)
ES (1) ES2109419T3 (es)
TW (1) TW227614B (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3259204B2 (ja) * 1992-10-21 2002-02-25 株式会社ニコン 光記録方法及び光記録のパルストレイン条件決定方法
US5802031A (en) * 1997-01-28 1998-09-01 International Business Machines Corporation Programmable PPM/PWM writing system for optical disk
KR100320470B1 (ko) 1999-03-05 2002-01-12 구자홍 광 디스크 기록신호 생성 방법 및 장치
US6580683B1 (en) 1999-06-23 2003-06-17 Dataplay, Inc. Optical recording medium having a master data area and a writeable data area
AU2003250421A1 (en) * 2002-08-14 2004-03-03 Koninklijke Philips Electronics N.V. Method and apparatus for recording marks in a phase-change type information layer of a record carrier
TWI387289B (zh) 2009-02-18 2013-02-21 Giga Byte Tech Co Ltd 一種網域衝突避免方法及運用該方法的路由器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR910003460B1 (ko) * 1987-02-12 1991-05-31 가부시기가이샤 히다찌세이사꾸쇼 광학식 정보기록 장치
JPH03113760A (ja) * 1989-09-22 1991-05-15 Nikon Corp 光磁気ピットポジション記録方法及びそれに使用される記録装置
JP2956146B2 (ja) * 1990-07-10 1999-10-04 ソニー株式会社 ディスクカートリッジ並びに記録及び／又は再生装置

Also Published As

Publication number Publication date
US5321682A (en) 1994-06-14
KR930023949A (ko) 1993-12-21
DE69313919D1 (de) 1997-10-23
DE69313919T2 (de) 1998-03-12
JPH0620278A (ja) 1994-01-28
TW227614B (es) 1994-08-01
KR100256386B1 (ko) 2000-05-15

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