公开(公告)号：US20170108916A1

公开(公告)日：2017-04-20

申请号：US14885257

申请日：2015-10-16

Applicant: RICHTEK TECHNOLOGY CORPORATION

Inventor： Hung-Chi Huang ,  Ying-Che Lo ,  Chih-Hsien Wang ,  Chih-Yi Hsiao ,  Lupu Liao

IPC: G06F1/32 ,  H04W52/02

CPC classification number: G06F1/3296 ,  G06F1/3206 ,  G06F1/325 ,  G06F1/3287 ,  H04W52/0251 ,  H04W52/0254 ,  Y02D10/171 ,  Y02D10/172 ,  Y02D70/00

Abstract: The present invention discloses an event detection method for waking up a portable electronic device and an action sensor using same. The event detection method includes the steps of: under a normal operation mode, sensing action events by the action sensor with a first data sensing frequency, wherein the action sensor operates by a normal current to detect the action events; entering into a sleep mode; under the sleep mode, detecting a wake-up event by the action sensor with a second data sensing frequency, wherein the action sensor operates by a weak current to detect the wake-up event, wherein the weak current is smaller than the normal current, and the second data sensing frequency is not higher than the first data sensing frequency; and returning to the normal operation mode when the wake-up event is detected.

公开(公告)号：US09684368B2

公开(公告)日：2017-06-20

申请号：US14885257

申请日：2015-10-16

Applicant: RICHTEK TECHNOLOGY CORPORATION

Inventor： Hung-Chi Huang ,  Ying-Che Lo ,  Chih-Hsien Wang ,  Chih-Yi Hsiao ,  Lupu Liao

IPC: G06F1/32 ,  H04W52/02

CPC classification number: G06F1/3296 ,  G06F1/3206 ,  G06F1/325 ,  G06F1/3287 ,  H04W52/0251 ,  H04W52/0254 ,  Y02D10/171 ,  Y02D10/172 ,  Y02D70/00

Abstract: The present invention discloses an event detection method for waking up a portable electronic device and an action sensor using same. The event detection method includes the steps of: under a normal operation mode, sensing action events by the action sensor with a first data sensing frequency, wherein the action sensor operates by a normal current to detect the action events; entering into a sleep mode; under the sleep mode, detecting a wake-up event by the action sensor with a second data sensing frequency, wherein the action sensor operates by a weak current to detect the wake-up event, wherein the weak current is smaller than the normal current, and the second data sensing frequency is not higher than the first data sensing frequency; and returning to the normal operation mode when the wake-up event is detected.