FINGERPRINT IDENTIFICATION DEVICE AND ELECTRONIC DEVICE USING SAME

摘要

The present disclosure relates to a fingerprint identification device includes a pressure sensor array, a multiplexer, an addressing circuit, a signal processing circuit, a microcontroller and a memory. The multiplexer is connected to the pressure sensor array and the signal processing circuit. The microcontroller is connected to the signal processing circuit and the memory. The addressing circuit is connected to the multiplexer and the microcontroller. The microcontroller includes a timing unit, a location identification unit, an image processor and a comparing unit, the timing unit. The location identification unit and the image processor are used to process electrical signals received by the microcontroller to gain location information, fingerprint images, durations and a set of fingerprint information corresponding to the electrical signal. The microcontroller gives out a fingerprint identification confirmation or fingerprint unconformable information according to the comparison result gained by the comparing unit.

主权项

1. A fingerprint identification device comprising:
a pressure sensor array; a signal processing circuit coupled to the pressure sensor array by a multiplexer; an addressing circuit connected to the multiplexer; a memory configured for storing preset fingerprint information; and a microcontroller connected to the signal processing circuit, the addressing circuit, and the memory, the microcontroller comprising: a timing unit, a location identification unit, an image processor, and a comparing unit, wherein the timing unit, the location identification unit and the image processor are used to process electrical signals received by the microcontroller to acquire location information, fingerprint images, durations and a set of fingerprint information comprising the location information, the fingerprint images and the durations corresponding to the electrical signal, wherein the comprising unit compares all the fingerprint information corresponding to the electrical signals with preset fingerprint information stored in the memory in turn, the microcontroller gives out a fingerprint identification confirmation or fingerprint unconformable information according to the comparison result acquired by the comparing unit.