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1. WO2005031731 - 光記録媒体の記録方法

公開番号 WO/2005/031731
公開日 07.04.2005
国際出願番号 PCT/JP2003/012249
国際出願日 25.09.2003
IPC
G11B 7/007 2006.01
G物理学
11情報記憶
B記録担体と変換器との間の相対運動に基づいた情報記録
7光学的手段による記録または再生,例.光ビームの照射による記録,低パワー光ビームを用いる再生;そのための記録担体
007記録担体上の情報の配列,例.トラックの形状
CPC
G11B 11/10513
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
11Recording 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
10using 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
105using 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 thermo-magnetic recording, ; spin magnetisation recording,; Kerr ; or Faraday; effect reproducing
10502characterised by the transducing operation to be executed
10504Recording
1051by modulating both the magnetic field and the light beam at the transducers
10513one of the light beam or the magnetic field being modulated by data and the other by a clock or frequency generator
G11B 11/10515
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
11Recording 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
10using 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
105using 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 thermo-magnetic recording, ; spin magnetisation recording,; Kerr ; or Faraday; effect reproducing
10502characterised by the transducing operation to be executed
10515Reproducing
G11B 11/1053
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
11Recording 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
10using 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
105using 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 thermo-magnetic recording, ; spin magnetisation recording,; Kerr ; or Faraday; effect reproducing
10502characterised by the transducing operation to be executed
1053to compensate for the magnetic domain drift or time shift
G11B 11/10543
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
11Recording 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
10using 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
105using 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 thermo-magnetic recording, ; spin magnetisation recording,; Kerr ; or Faraday; effect reproducing
10532Heads
10541for reproducing
10543using optical beam of radiation
G11B 11/10584
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
11Recording 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
10using 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
105using 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 thermo-magnetic recording, ; spin magnetisation recording,; Kerr ; or Faraday; effect reproducing
10582Record carriers characterised by the selection of the material or by the structure or form
10584characterised by the form, e.g. comprising mechanical protection elements
G11B 11/10597
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
11Recording 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
10using 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
105using 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 thermo-magnetic recording, ; spin magnetisation recording,; Kerr ; or Faraday; effect reproducing
10595Control of operating function
10597Adaptations for transducing various formats on the same or different carriers
出願人
  • FUJITSU LIMITED [JP]/[JP] (AllExceptUS)
  • HOSOKAWA, Tetsuo [JP]/[JP] (UsOnly)
  • AOYAMA, Nobuhide [JP]/[JP] (UsOnly)
発明者
  • HOSOKAWA, Tetsuo
  • AOYAMA, Nobuhide
代理人
  • SANADA, Tamotsu
優先権情報
公開言語 (言語コード) 日本語 (JA)
出願言語 (言語コード) 日本語 (JA)
指定国 (国コード)
発明の名称
(EN) METHOD FOR RECORDING ON OPTICAL RECORDING MEDIUM
(FR) PROCEDE D'ENREGISTREMENT SUR UN SUPPORT OPTIQUE
(JA) 光記録媒体の記録方法
要約
(EN)
A method for recording on an optical recording medium having a ROM layer capable of reproducing information recorded in advance and a RAM layer capable of recording/reproducing information. A laser beam is emitted with two or more pulses per recording unit of a RAM recording mark to be recorded as information on the RAM layer and by using the laser beam, the RAM recording mark is recorded.
(FR)
L'invention porte sur un procédé d'enregistrement sur un support optique possédant une couche ROM capable de reproduire des informations d'enregistrement/reproduction. Un faisceau laser est émis par au moins deux impulsions par unité d'enregistrement d'une marque d'enregistrement RAM à enregistrer sous forme d'information sur la couche RAM, et en utilisant le faisceau laser, la marque d'enregistrement RAM est ainsi enregistrée.
(JA)
予め記録された情報を再生可能なROM層と、情報を記録/再生可能なRAM層とが積層された光記録媒体の記録方法であって、RAM層に情報として記録されるRAM記録マークの記録単位あたり2回以上のパルスでレーザ光を発光させ、かかるレーザ光を用いてRAM記録マークを記録する。
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