发明授权
US09032107B2 USB key and a method for communication between the USB key and a terminal 有权
USB钥匙和USB钥匙与终端之间的通讯方法

USB key and a method for communication between the USB key and a terminal
摘要:
A key has a micro-control unit (MCU) module for detecting a pattern of a MCU module pin in a potential state. An Universal serial bus (USB) is fixedly connected with an interface module of a terminal. The MCU module is connected with the USB when a predetermined condition is satisfied. An enumeration request is sent to the terminal. The terminal is connected with the interface module. A mode pin is utilized for indicating a communication mode between the USB and the terminal in the potential state.
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