公开(公告)号：US09967100B2

公开(公告)日：2018-05-08

申请号：US14533799

申请日：2014-11-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun Ju Hong ,  Seung Ki Choi ,  Su Ha Yoon ,  Su Young Park ,  Eui Chang Jung ,  Sung Hyuk Shin

IPC: H04L9/32 ,  G06F3/01 ,  G06F1/16 ,  G06F1/32 ,  G06K9/00

CPC classification number: H04L9/3231 ,  G06F1/1694 ,  G06F1/325 ,  G06F3/017 ,  G06F2200/1637 ,  G06K9/00013

Abstract: A method of controlling power supply for a fingerprint sensor is provided. The method includes receiving sensor data obtained from the fingerprint sensor; determining whether the received sensor data is a fingerprint form of data; if the received sensor data is the fingerprint form of data, determining an amount of change in sensor data received over a predetermined time is greater than or equal to a predetermined value; and if the received sensor data is not the fingerprint form of data or if the received sensor data is the fingerprint form of data but an amount of change in the received sensor data is less than the predetermined value, allowing the fingerprint sensor to enter a power saving mode.