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    • 3. 发明授权
    • Memory card
    • 存储卡
    • US07418602B2
    • 2008-08-26
    • US10868960
    • 2004-06-17
    • Satoshi YoshidaKunihiro KatayamaAkira KanehiraMasaharu Ukeda
    • Satoshi YoshidaKunihiro KatayamaAkira KanehiraMasaharu Ukeda
    • G06F21/00
    • G06F21/78G06F21/31G06F2221/2143
    • In order to protect the user security data, provided is a memory card capable of preventing the data leakage to a third party not having the access authority by imposing the limitation on the number of password authentications and automatically erasing the data. In a system comprised of a multimedia card and a host machine electrically connected to the multimedia card and controlling the operations of the multimedia card, a retry counter for storing the number of password authentication failures is provided and the upper limit of the number of failures is registered in a register. When passwords are repeatedly entered once, twice, . . . and n times and the retry counter which counts the entries reaches the upper limit of the number of failures, the data is automatically erased so as not to leave the data in the flash memory.
    • 为了保护用户安全数据,提供了一种能够通过对密码认证数量进行限制并自动擦除数据来防止数据泄漏给不具有访问权限的第三方的存储卡。 在由多媒体卡和与多媒体卡电连接并控制多媒体卡的操作的主机构成的系统中,提供用于存储密码认证失败次数的重试计数器,故障次数的上限为 注册登记。 当密码重复输入一次,两次,。 。 。 并且n次,对条目进行计数的重试计数器达到故障次数的上限,数据被自动擦除,以便不将数据留在闪存中。
    • 7. 发明授权
    • Storage device
    • 储存设备
    • US07415729B2
    • 2008-08-19
    • US10463768
    • 2003-06-18
    • Masaharu UkedaMotoyasu TsunodaNagamasa MizushimaKunihiro Katayama
    • Masaharu UkedaMotoyasu TsunodaNagamasa MizushimaKunihiro Katayama
    • G06F7/04
    • G06F21/78G06F21/10G06F21/62
    • A storage device allows expanding user utilizable applications by storing information permitted to be read according to a certificate and information permitted to be read according to information determined by a user. An information distributor receives a certificate from the storage device and after verifying the certificate, transmits data of a license and access control conditions to the storage device. After receiving data of a certificate from an information browser, verifying the certificate and imposing a limit on access based upon one of access control conditions, the storage device transmits data of the license and the other to the information browser. The information browser permits utilization of the license under the limitation defined by the access control condition. The certificate includes either or both of a certificate approved by a certificate authority and a PIN (personal identifying number) determined by the user.
    • 存储装置允许通过根据由用户确定的信息根据证书和允许读取的信息来存储允许读取的信息来扩展用户可利用的应用。 信息分配器从存储装置接收证书,并且在验证证书之后,向存储装置发送许可证和访问控制条件的数据。 在从信息浏览器接收到证书的数据之后,根据访问控制条件之一验证证书和强制访问限制,存储设备将许可证的数据传送给信息浏览器。 信息浏览器允许在由访问控制条件定义的限制下使用许可证。 证书包括证书颁发机构批准的证书和用户确定的PIN(个人识别号码)中的一个或两个。
    • 9. 发明申请
    • DATA PROCESSING CIRCUIT AND COMMUNICATION MOBILE TERMINAL DEVICE
    • 数据处理电路和通信移动终端设备
    • US20090144834A1
    • 2009-06-04
    • US12271099
    • 2008-11-14
    • Yoshinori MOCHIZUKIMasaharu UkedaShigemasa ShiotaTakeo Kon
    • Yoshinori MOCHIZUKIMasaharu UkedaShigemasa ShiotaTakeo Kon
    • H04L9/32H04M1/00G06F12/02
    • G11C16/22G11C16/225
    • A data processing circuit includes a rewritable nonvolatile memory and a controller performing nonvolatile memory control and external interface control. A first detector and a second detector are employed to detect respectively whether the operation of the data processing circuit deviates from a first operating condition and a second operating condition, wherein the second operating condition is severer than the first operating condition. When the first detector detects deviation from the first operating condition, reset is instructed to the controller. When the second detector detects deviation from the second operating condition, the controller backs up an internal state and imposes a restriction on external access to a storage region of the nonvolatile memory. Accordingly, when operation of the microcontroller deviates from specific operating conditions within an operation guarantee range and performance degradation is exhibited, an unauthorized access to the data inside the microcontroller can be suppressed.
    • 数据处理电路包括可重写非易失性存储器和执行非易失性存储器控制和外部接口控制的控制器。 采用第一检测器和第二检测器来检测数据处理电路的操作是否偏离第一操作条件和第二操作条件,其中第二操作条件比第一操作条件更严格。 当第一检测器检测到与第一操作条件的偏差时,向控制器指示复位。 当第二检测器检测到与第二操作条件的偏差时,控制器备份内部状态并对对非易失性存储器的存储区域的外部访问施加限制。 因此,当微控制器的操作在操作保证范围内偏离特定操作条件并且表现出性能下降时,可以抑制对微控制器内的数据的未经授权的访问。
    • 10. 发明申请
    • MEMORY CARD
    • 存储卡
    • US20080301817A1
    • 2008-12-04
    • US12182123
    • 2008-07-29
    • Satoshi YoshidaKunihiro KatayamaAkira KanehireMasaharu Ukeda
    • Satoshi YoshidaKunihiro KatayamaAkira KanehireMasaharu Ukeda
    • G06F21/00
    • G06F21/78G06F21/31G06F2221/2143
    • In order to protect the user security data, provided is a memory card capable of preventing the data leakage to a third party not having the access authority by imposing the limitation on the number of password authentications and automatically erasing the data. In a system comprised of a multimedia card and a host machine electrically connected to the multimedia card and controlling the operations of the multimedia card, a retry counter for storing the number of password authentication failures is provided and the upper limit of the number of failures is registered in a register. When passwords are repeatedly entered once, twice, . . . and n times and the retry counter which counts the entries reaches the upper limit of the number of failures, the data is automatically erased so as not to leave the data in the flash memory.
    • 为了保护用户安全数据,提供了一种能够通过对密码认证数量进行限制并自动擦除数据来防止数据泄漏给不具有访问权限的第三方的存储卡。 在由多媒体卡和与多媒体卡电连接并控制多媒体卡的操作的主机构成的系统中,提供用于存储密码认证失败次数的重试计数器,故障次数的上限为 注册登记。 当密码重复输入一次,两次,。 。 。 并且n次,对条目进行计数的重试计数器达到故障次数的上限,数据被自动擦除,以便不将数据留在闪存中。