QUALCOMM Incorporated
Power saving in device with ultrasonic fingerprint sensors

Abstract:

Aspects generally relate to an apparatus for authenticating a user. The apparatus can include a screen, and located under the screen are a plurality of fingerprint scanners, the plurality of fingerprint scanners corresponding to respective regions of the screen. An interface requests a location of the screen that an application uses for a fingerprint scan. A screen location touched by a user is identified, and based on the screen location touched by the user and the location of the screen that an application uses for a fingerprint scan, enabling fingerprint scanners covering the region of the location of the screen.