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    • 65. 发明公开
    • METHOD OF DETERMINING ACCESS POSITION ON RECORDING MEDIUM AND METHOD OF MANAGING RECORDING MEDIUM
    • 方法用于确定位置访问的记录介质和方法给药的AUFNBAHMEMEDIUMS作者:
    • EP1206135A1
    • 2002-05-15
    • EP00948324.9
    • 2000-07-28
    • Sharp Kabushiki Kaisha
    • IWANO, Yuri
    • H04N5/85
    • G11B27/105G11B27/005G11B27/034G11B27/036G11B27/11G11B27/329G11B27/34G11B2220/2562G11B2220/65G11B2220/657H04N5/85H04N9/8042H04N9/8063H04N9/888
    • A management system for a recording medium recorded with a multimedia data stream wherein in a first data made up of video and sound, an amount of data for a predetermined playback period is managed as a first unit (EU), an individually reproducible minimum unit of data in the first unit (EU) is managed as a second unit (VU), each of the first units (EUs) is adapted to have an equal period of playback time to others, and each of the second units (VUs) is adapted to have an equal period of playback time to others. In this management system, the positional information of the second unit (VU) on the recording medium is held as management information for every second unit, so that the positional information of the first unit (EU) on the recording medium is calculated based on the positional information of the second unit (VU) on the recording medium.
    • 用于记录在由上的数据量的视频和声音的一个预定重放周期的第一数据的多媒体数据流worin的记录介质的管理系统被管理为一个第一单元(EU)来的单独再现的最小单位 在第一单元(EU)的数据被管理为一个第二单元(VU),每个所述第一单元(EU)的是angepasst不得不的重放时间到他人等于周期,并且每一个第二单元(VU)的是angepasst 不得不播放时间给他人平等的时期。 在该管理系统中,第二单元的(VU)的记录介质上的位置信息保持为对于每个第二单元的管理信息,所以做了记录介质上的第一单元(EU)的位置信息是基于所计算的 所述记录介质上的第二单元(VU)的位置信息。
    • 68. 发明公开
    • Optical disk and recording/reproduction apparatus using the same
    • Optische Platte und Aufzeichnungs- /Wiedergabegerätzur Verwendung derselben
    • EP0996124A1
    • 2000-04-26
    • EP99308317.9
    • 1999-10-21
    • HITACHI, LTD.
    • Ono, HiroakiHiguchi, ShigemitsuSano, Kenji
    • G11B7/24G11B23/30
    • G06K19/045G06K7/10336G06K19/04G06K19/07749G11B7/24G11B23/0042G11B23/30G11B27/11G11B2220/213G11B2220/2545G11B2220/2562G11B2220/657
    • An optical recording disk intended only for the reproduction of a main information and used by an information management system has the attachment of a memory (3) in which data for the management of the main information is written and read out easily and reliably. The memory has associated electromagnetic coupling means (10,11) for transacting the record management data with and receiving power from a recording/reproduction apparatus. The electromagnetic coupling means is built in the memory or disposed in an annular or spiral form on the disk. The transmission frequency band for data transaction and power supply is set outside the main information reproduction frequency band. The memory is disposed in or on an appropriate plastic layer of the disk depending on the usage of the disk, and located in the inner or outer section of the recording medium forming area on the disk depending on the transmission band. This low-cost optical disk can be manufactured at a high reliability and high yield.
    • 仅用于再现主要信息并由信息管理系统使用的光记录盘具有可以容易且可靠地写入和读出用于管理主信息的数据的存储器(3)的附件。 存储器具有相关联的电磁耦合装置(10,11),用于将记录管理数据与来自记录/再现装置的功率进行交互。 电磁耦合装置内置在存储器中或以环形或螺旋形式设置在盘上。 用于数据交易和电源的传输频带设置在主信息再现频带之外。 存储器根据盘的使用被布置在盘的适当的塑料层中或其上,并且根据传输带位于盘上的记录介质形成区域的内部或外部。 可以以高可靠性和高产率制造这种低成本光盘。