A method and terminal for improving fingerprint recognition rate

Abstract

The invention provides a method and a terminal for improving the fingerprint recognition rate. The method includes: when it is detected that the touch-type fingerprint sensor is touched for more than a first preset time length, sending a prompt to the user to determine whether it is a touch action made by the user; When no feedback from the user is received, increase the area threshold M corresponding to the touch fingerprint sensor; wherein, the area threshold M is used to indicate when there are at least M area capacitance changes in the touch fingerprint sensor When the amount is greater than a preset threshold, the touch fingerprint sensor responds. It can be seen that, by implementing the technical solution provided by the present invention, it is possible to confirm the presence of oil contamination based on the touch duration of the touch fingerprint sensor, and when there is an oil contamination problem, increase the area threshold M corresponding to the touch fingerprint sensor to increase the difficulty of triggering, thereby Reduce the probability of false triggering of the touch fingerprint sensor, thereby improving the recognition rate of the HOME key.

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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