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    • 5. 发明授权
    • SD card including smart card and method for accessing to the same based on a file system
    • SD卡包括智能卡和基于文件系统访问的方法
    • US08285899B2
    • 2012-10-09
    • US12717920
    • 2010-03-04
    • Shuo HeHongwen MengJia Hu
    • Shuo HeHongwen MengJia Hu
    • H04B1/38G06F13/12G06F13/00
    • G06K19/07G06F21/35G06F21/74G06F21/79G06K19/07732
    • A smart SD card and a method of accessing the same are disclosed, which resolve a problem of incompatibilities between drivers of various smart SD cards. The smart SD card includes a SD interface (201), a SD memory (203), a smart card (204) and a SD controller (202). The method of accessing the SD card includes: an application program performing a write operation on the smart card interface file and notifying the SD controller establishing a communication connection with the smart card; the application program reading the interface file and receiving response data returned by the smart card via the SD controller; the establishing of the connection being successful, the application program writing the smart card operation commands into the interface file, and the SD controller forwarding the commands to the smart card; the application program reading the interface file and receiving response data returned by the smart card via the SD controller.
    • 公开了一种智能SD卡及其访问方法,其解决了各种智能SD卡的驱动程序之间的不兼容问题。 智能SD卡包括SD接口(201),SD存储器(203),智能卡(204)和SD控制器(202)。 访问SD卡的方法包括:应用程序对智能卡接口文件执行写入操作,并通知SD控制器建立与智能卡的通信连接; 所述应用程序读取所述接口文件并且经由所述SD控制器接收由所述智能卡返回的响应数据; 连接建立成功,应用程序将智能卡操作命令写入接口文件,SD控制器将命令转发到智能卡; 应用程序读取接口文件,并通过SD控制器接收智能卡返回的响应数据。