Importance

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Abstract

A wireless peripheral device includes a receiving module, a peripheral device body and a sweep-type fingerprint sensing chip. The receiving module is coupled to a host system through a cable. The body communicates with the receiving module in a wireless manner. The sweep-type fingerprint sensing chip disposed on the body senses a plurality of fingerprint fragment images to obtain a plurality of analog fingerprint fragment signals as a finger is sweeping over it, processes the analog fingerprint fragment signals into non-overlapped fragment images, and outputs the fragment images to the receiving module through an emitter and a receiver. Then, the host system receives and assembles the fragment images into a complete fingerprint image in a manner of stacking the fragment images side by side, compares the complete fingerprint image with a reference fingerprint image, and then enables at least one application program in the host system after the comparison passes.

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First Claim