RU2003108835A - Устройство записи и воспроизведения для записи и воспроизведения информации на и с магнитооптического носителя записи - Google Patents

Устройство записи и воспроизведения для записи и воспроизведения информации на и с магнитооптического носителя записи

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Publication number
RU2003108835A
RU2003108835A RU2003108835/28A RU2003108835A RU2003108835A RU 2003108835 A RU2003108835 A RU 2003108835A RU 2003108835/28 A RU2003108835/28 A RU 2003108835/28A RU 2003108835 A RU2003108835 A RU 2003108835A RU 2003108835 A RU2003108835 A RU 2003108835A
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RU
Russia
Prior art keywords
recording medium
magneto
recording
optical
optical recording
Prior art date
Application number
RU2003108835/28A
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English (en)
Inventor
Минору ТОБИТА (JP)
Минору ТОБИТА
Йосиюки ТЕРАОКА (JP)
Йосиюки ТЕРАОКА
Томидзи ТАНАКА (JP)
Томидзи ТАНАКА
Масато ХАТТОРИ (JP)
Масато ХАТТОРИ
Тамоцу ИСИИ (JP)
Тамоцу ИСИИ
Original Assignee
Сони Корпорейшн (JP)
Сони Корпорейшн
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Publication date
Application filed by Сони Корпорейшн (JP), Сони Корпорейшн filed Critical Сони Корпорейшн (JP)
Publication of RU2003108835A publication Critical patent/RU2003108835A/ru

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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
    • G11B11/10504—Recording
    • G11B11/10508—Recording by modulating only the magnetic field at 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
    • G—PHYSICS
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    • 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
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    • G—PHYSICS
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    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
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    • G11—INFORMATION STORAGE
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    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
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    • G11B27/24—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by sensing features on the record carrier other than the transducing track ; sensing signals or marks recorded by another method than the main recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G—PHYSICS
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    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
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    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/327—Table of contents
    • G11B27/329—Table of contents on a disc [VTOC]
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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Optical Recording Or Reproduction (AREA)

Claims (8)

1. Устройство записи/воспроизведения информации для записи и воспроизведения информации на и с магнитооптического носителя записи, который содержит первый магнитный слой для записи по меньшей мере информации, второй магнитный слой для регулирования переключаемой соединительной силы и третий магнитный слой для сдвига магнитной стенки записанных меток для воспроизведения информации, при этом три слоя уложены на прозрачную подложку с образованием носителя записи, при этом устройство записи/воспроизведения содержит оптическую головку, имеющую источник света и линзы объектива, при этом источник света выполнен с возможностью излучения по меньшей мере одного лазерного луча с длиной волны около 780 нм, линза объектива имеет числовую апертуру около 0,45 и выполнена с возможностью фокусирования лазерного луча от источника света в пятно луча для излучения на магнитооптический носитель записи, и магнитную головку для приложения магнитного поля записи к магнитооптическому носителю записи.
2. Устройство записи/воспроизведения информации по п.1, отличающееся тем, что оптическая головка и магнитная головка выполнены с возможностью генерирования строчных меток на первом магнитном слое магнитооптического носителя записи с использованием технологии модуляции с помощью магнитного поля и лазерных импульсов для записи информации на магнитооптический носитель записи, и оптическая головка выполнена с возможностью излучения лазерного луча на магнитооптический носитель записи для обеспечения заданной температуры так, что второй магнитный слой становится магнитно нейтральным, и магнитные стенки в первом магнитном слое переносятся в третий магнитный слой так, что строчные метки становятся видимыми под пятном луча на магнитооптическом носителе записи и с обеспечением обнаружения указанных меток.
3. Устройство записи/воспроизведения информации по п.1, отличающееся тем, что оптическая головка и магнитная головка выполнены с возможностью записи и воспроизведения информации на и с другого магнитооптического носителя записи, который содержит диэлектрическую пленку, магнитную пленку, другую диэлектрическую пленку, отражательную пленку и защитную пленку, расположенные пачкой на прозрачной поликарбонатной подложке.
4. Устройство записи/воспроизведения информации по п.3, отличающееся тем, что дополнительно содержит опорный диск, выполненный с возможностью установки магнитооптического носителя записи и другого магнитооптического носителя записи в положение записи/воспроизведения и выполненный с возможностью вращения носителя записи с линейной скоростью, соответствующей носителю записи, установленному на опорный диск.
5. Устройство записи/воспроизведения информации по п.4, отличающееся тем, что опорный диск выполнен с возможностью вращения магнитооптического носителя записи с линейной скоростью, примерно находящейся внутри диапазона от 1,85 до 2,06 м/с включительно, и выполнен с возможностью вращения другого магнитооптического носителя записи с линейной скоростью, примерно находящейся внутри диапазона от 2,4 до 2,8 м/с включительно.
6. Устройство записи/воспроизведения информации по п.5, отличающееся тем, что опорный диск выполнен с возможностью вращения другого магнитооптического носителя записи с линейной скоростью, примерно находящейся внутри диапазона от 1,2 до 1,4 м/с включительно.
7. Устройство записи/воспроизведения информации по п.3, отличающееся тем, что магнитооптический носитель записи и другой магнитооптический носитель записи, каждый из которых является диском одного и того же первого размера, размещенным в кассете одного и того же второго размера.
8. Устройство записи/воспроизведения информации по п.7, отличающееся тем, что диск имеет диаметр 64,8 мм, диаметр центрального отверстия равен 11 мм, толщина равна 1,2 мм, а размер кассеты по глубине, ширине и высоте составляет 68×72×5 мм.
RU2003108835/28A 2002-04-01 2003-03-31 Устройство записи и воспроизведения для записи и воспроизведения информации на и с магнитооптического носителя записи RU2003108835A (ru)

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JP2002099276 2002-04-01
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JP2002190808 2002-06-28

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US (1) US7110328B2 (ru)
EP (1) EP1351232A3 (ru)
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KR (1) KR20030079722A (ru)
CN (1) CN1308946C (ru)
AU (1) AU2003202535A1 (ru)
BR (1) BR0300852A (ru)
CA (1) CA2423526A1 (ru)
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CN103792635B (zh) 2012-10-29 2016-02-17 中强光电股份有限公司 波长转换轮模块及照明系统
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US7110328B2 (en) 2006-09-19
JP2004087085A (ja) 2004-03-18
AU2003202535A1 (en) 2003-10-23
CN1308946C (zh) 2007-04-04
TWI267823B (en) 2006-12-01
EP1351232A3 (en) 2005-09-14
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BR0300852A (pt) 2004-08-17
US20030185109A1 (en) 2003-10-02

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