Contact type CPU card easy to expand and with USB interface
A USB interface, contact technology, applied in the field of information security, can solve the problems of limited scalability, single function of the contact CPU card, etc., to reduce costs, increase security, easy to implement and popularize.
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[0026] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0027] An easy-to-extend contact CPU card with a USB interface according to the present invention mainly includes a CPU card chip, a storage module, an interface module and an increased USB interface, an expansion processor, an expansion storage module, an information security module, and a fingerprint modules and display modules. Structural diagram such as figure 2 Shown:
[0028] CPU card chip and storage module: The CPU card chip and storage module are the components that make up the traditional CPU card.
[0029] Interface module: The interface module complies with the ISO7816 standard. At the same time, C4 and C8 are expanded as USB signals. C1, C5, C4, and C8 form a standard USB interface.
[0030] Extended processor: a processor independent of the CPU card chip, a processor dedicated to implementing extended applications, which solves the problem t...
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