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    Data storage device and data storage method
    4.
    发明公开
    Data storage device and data storage method 有权
    数据存储设备和方法

    公开(公告)号：EP0973136A2

    公开(公告)日：2000-01-19

    申请号：EP99305639.9

    申请日：1999-07-15

    申请人： SONY CORPORATION

    发明人： Kusakabe, Susumu ,  Takada, Masayuki ,  Sasaki, Masachika

    IPC分类号： G07F7/10 ,  G06F12/14

    CPC分类号： G07F7/1008 ,  G06F12/1408 ,  G06F12/1441 ,  G06Q20/341 ,  G06Q20/35765 ,  Y10S707/99939

    摘要： A code range which is the range of usable identification codes (corresponding to file names or directory names) is stored in an area defining area corresponding to a directory, and a layer structure in which the area defining are concerned is set as a parent layer and the other area defining areas are set as child layers is constructed on the basis of the code range. Further, the capacity (empty capacity) of the usable storage area is stored in the area defining area, and the capacity and identification codes which are usable in the layer of an area defining area are restricted by the empty capacity and the code range.

    Information processing system, portable electronic device, access apparatus for the portable electronic device, and method of using memory space
    6.
    发明公开
    Information processing system, portable electronic device, access apparatus for the portable electronic device, and method of using memory space 有权
    一种数据处理系统，便携式电子装置，所述存取装置向所述便携式电子设备，和方法使用的存储器空间

    公开(公告)号：EP1117077A2

    公开(公告)日：2001-07-18

    申请号：EP01100277.1

    申请日：2001-01-03

    申请人： SONY CORPORATION

    发明人： Kusakabe, Susumu ,  Takada, Masayuki ,  Sasaki, Masachika

    IPC分类号： G07F7/10

    CPC分类号： G07F7/1008 ,  G06Q20/341 ,  G06Q20/3576 ,  G06Q20/3672

    摘要： The invention provides an information processing system, a portable electronic device, an access apparatus for the portable electronic device, as well as a method of using a memory space. When applied to, for example, a system employing non-contact IC cards, the invention enables one IC card to be used for a plurality of business organizations in common. To this end, an access key is created based on issuer key information managed by a management sector and file key information specific to each business organization, and the created access key is assigned to the business organization. A portable electronic device is then accessed using the access key.

    摘要翻译： 本发明提供的信息处理系统中，一种便携式电子设备为便携式电子装置，以及使用存储空间的方法访问装置。 当应用于，例如，采用非接触式IC卡的系统中，本发明能够被用于在普通商业组织多个一种IC卡。 为此，访问密钥基于由管理部门来管理的文件，并具体到每一个企业组织的关键信息发行方密钥信息创建的，创建的存取密钥分配给商务组织。 然后，便携式电子设备使用的访问密钥进行访问。