公开(公告)号：US10949644B2

公开(公告)日：2021-03-16

申请号：US16266044

申请日：2019-02-02

Applicant: HiDeep Inc.

Inventor： Woohyun Bach

IPC: G06K9/00 ,  G06F3/041 ,  G06F3/0488 ,  G06F3/0481 ,  G06F3/0484

Abstract: A fingerprint sensing method based on touch pressure in a black screen mode of a touch input device according to the embodiment of the present invention includes: sensing first pressure which has a value equal to or greater than a first predetermined threshold value and is applied by an object in the black screen mode; determining continuously after sensing the first pressure whether second pressure which has a value equal to or greater than a second predetermined threshold value and is different from the first pressure is sensed or not; recognizing a fingerprint of the object when the second pressure is sensed; determining whether or not the recognized fingerprint is identical to a fingerprint previously registered in the touch input device; and performing a predetermined operation when the recognized fingerprint is identical to the previously registered fingerprint.