公开(公告)号：US20190244007A1

公开(公告)日：2019-08-08

申请号：US16266044

申请日：2019-02-02

Applicant: HiDeep Inc.

Inventor： Woohyun BACH

IPC: G06K9/00 ,  G06F3/041

CPC classification number: G06K9/00087 ,  G06F3/0414 ,  G06F3/04817 ,  G06F3/0484 ,  G06F3/0488 ,  G06K9/00926 ,  G06K9/00993

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.