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    • 9. 发明授权
    • Storage and access control method for storage
    • 存储和访问控制方法存储
    • US07716509B2
    • 2010-05-11
    • US11453644
    • 2006-06-14
    • Yukihide Inagaki
    • Yukihide Inagaki
    • G06F12/14
    • G06F1/14G06F21/10G06F21/79G06F21/80G11B20/00086G11B20/00492G11B20/0084G11B20/00847
    • Embodiments of the invention prevent a storage from being continuously used in a state in which the time of a built-in clock is different from the actual time because of replacement of a battery or intentional tampering of time. In one embodiment, a storage having a recording medium for storing content data includes: a clock that can refer to present time and can set time to reliable standard time on the outside (time synchronization); a built-in power supply that supplies power to the clock; and a nonvolatile memory that records time when the time synchronization for the clock is performed. The storage compares, according to circumstances, the present time indicated by the built-in clock and the time when the time synchronization is performed last time and, when it is made clear that the time synchronization is not performed for time longer than a fixed time set in advance, prohibits an access to a limited access area of the recording medium.
    • 本发明的实施例防止在内置时钟的时间与实际时间不同的状态下连续使用存储器,因为更换电池或有意篡改时间。 在一个实施例中,具有用于存储内容数据的记录介质的存储器包括:可以参考当前时间并且可以将时间设置到外部可靠的标准时间的时钟(时间同步)的时钟; 内置电源供电给时钟; 以及在执行时钟的时间同步时记录时间的非易失性存储器。 存储器根据情况比较由内置时钟指示的当前时间和上次执行时间同步的时间,并且当清楚时间同步不比固定时间长时间执行时 预先设置,禁止访问记录介质的有限访问区域。
    • 10. 发明申请
    • DATA MANAGEMENT METHOD, DATA MANAGEMENT SYSTEM, AND DATA STORAGE SYSTEM
    • 数据管理方法,数据管理系统和数据存储系统
    • US20100011226A1
    • 2010-01-14
    • US12394153
    • 2009-02-27
    • Yukihide InagakiTsutomu Imai
    • Yukihide InagakiTsutomu Imai
    • G06F12/14
    • G06F21/10
    • Encrypted data and an encryption key used for the encrypted data are separately stored and managed. A first storage device stores an encrypted data block, predetermined information and first management information. The predetermined information includes key data for decrypting the encrypted data block and includes a requirement for using the encrypted data block. The first management information is used to manage the encrypted data block and includes a first storage address at which the predetermined information is stored. A host device transfers the predetermined information from the first storage device to a second storage device, causes second management information including a second storage address, at which the transferred predetermined information is stored and which is included in the second storage device to be stored in the second storage device.
    • 加密数据和用于加密数据的加密密钥被单独存储和管理。 第一存储装置存储加密数据块,预定信息和第一管理信息。 预定信息包括用于解密加密数据块的密钥数据,并且包括使用加密数据块的要求。 第一管理信息用于管理加密数据块,并且包括存储预定信息的第一存储地址。 主机设备将预定信息从第一存储设备传送到第二存储设备,引起包括第二存储地址的第二管理信息,其中存储传送的预定信息,并将包含在第二存储设备中的第二存储地址存储在 第二存储设备。