Method for improving rate of fingerprint identification and terminal

Abstract

The invention provides a method for improving the rate of fingerprint identification and a terminal. The method comprises the following steps: when detecting that the length of time a touch fingerprint sensor is touched exceeds a first preset length of time, sending a message to a user to determine whether the touch action is made by the user; and when no feedback is received from the user in a second preset length of time, raising a region threshold M corresponding to the touch fingerprint sensor, wherein the region threshold M is used to indicate the touch fingerprint sensor to make a response when there are at least M regions of which the capacitance variation is greater than a preset threshold in the touch fingerprint sensor. Through the technical scheme provided by the invention, whether there is an oil pollution problem can be confirmed based on the length of time a touch fingerprint sensor is touched, and when there is an oil pollution problem, the region threshold M corresponding to the touch fingerprint sensor can be raised to improve the trigger difficulty. Therefore, the probability that a touch fingerprint sensor is triggered by mistake is reduced, and the rate of HOME key identification is improved.

Description

technical field [0001] The invention relates to the field of terminals, in particular to a method for improving the fingerprint recognition rate and a terminal. Background technique [0002] At present, more and more terminals are equipped with touch fingerprint sensors. It should be pointed out that the terminal equipped with the touch fingerprint sensor is not equipped with the HOME button, and the function of the HOME button is simulated by the software through the touch fingerprint sensor. [0003] Since there is only one sensor on the touch fingerprint hardware, there is a concept of working mode: the sensor is currently either in the working mode of the fingerprint sensor (enrolling / unlocking fingerprints), or in the working mode of the HOME key (the phone will be turned on when it is lifted after touching). back to home page). Among them, HOME event: When the user uses the HOME key function, when the user touches the HOME key, a DOWN event will be generated, and whe...

AI Technical Summary

Problems solved by technology

[0004] However, the problem of false triggering of fingerprint sensors on terminals (for example, consumer electronics products such as smart phones or tablet computers) has become one of the pain points that seriously plague users, especially for touch fingerprints, this problem is even more serious. For example, when the fingerprint sensor has oily problems, it makes it easier for false triggers to occur, which obviously affects the user experience.

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