公开(公告)号：US20210124814A1

公开(公告)日：2021-04-29

申请号：US16605416

申请日：2018-04-17

Applicant: FINGERPRINT CARDS AB

Inventor： Markus ANDERSSON ,  Fredrik RAMBERG ,  Hans THÖRNBLOM ,  Gabriel RUNDLÖF ,  Hamid SARVE ,  Troels BJERRE

IPC: G06F21/32 ,  G06F3/044 ,  G06F3/041 ,  G06K9/00

Abstract: The present invention relates to a method for transitioning a device controller comprised with an electronic device from an at least partly inactive mode to an at least partly active mode, wherein the method comprises: determining the area portion of a finger detecting structure being touched by an object; determining a force applied on the fingerprint sensing device. When the area portion of the finger detecting structure being touched by the object exceeds a predetermined threshold area portion, and the force exceeds a predetermined threshold force value, transitioning, using the pre-processing module, the device controller from the at least partly inactive mode to the at least partly active mode. The invention also relates to such an electronic device.