Detection Method and Device Used In Fingerprint Identification System

Abstract

Disclosed a detection method used in a fingerprint identification system, the fingerprint identification system includes an array composed of a plurality of sensing electrodes configured to obtain a detection signal of a fingerprint, the detection method comprises: dividing the array into a plurality of regions; obtaining detection signals region by region; obtaining a noise signal from at least one of the plurality of sensing electrodes adjacent to at least one of the plurality of regions; and adjusting at least one of the detection signals by using the noise signal. The present disclosure also disclosed a detection device used in the fingerprint identification system. The disclosure can improve the quality of the image acquired by collecting the fingerprint and solve the problem that the image quality of the fingerprint identification system is deteriorated due to the common mode interference of the power supply.

Dependencies are inferred from the claim text.