US 12,013,738 B2
Sensor array and method of controlling sensing device and related electronic device
En-Feng Hsu, Hsin-Chu (TW)
Assigned to PixArt Imaging Inc., Hsin-Chu (TW)
Filed by PixArt Imaging Inc., Hsin-Chu (TW)
Filed on Apr. 5, 2021, as Appl. No. 17/222,987.
Application 17/222,987 is a continuation of application No. 16/593,930, filed on Oct. 4, 2019, granted, now 11,003,234.
Application 16/593,930 is a continuation of application No. 14/055,894, filed on Oct. 17, 2013, granted, now 10,481,670, issued on Nov. 19, 2019.
Claims priority of application No. 101141137 (TW), filed on Nov. 6, 2012.
Prior Publication US 2021/0223849 A1, Jul. 22, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 1/3231 (2019.01); G06F 1/3234 (2019.01); G06F 1/3287 (2019.01); G06F 3/01 (2006.01); G06F 3/03 (2006.01)
CPC G06F 1/3231 (2013.01) [G06F 1/3262 (2013.01); G06F 1/3287 (2013.01); G06F 3/017 (2013.01); G06F 3/0304 (2013.01); Y02D 10/00 (2018.01)] 12 Claims
OG exemplary drawing
 
1. An electronic device, comprising:
a first sensing device for selectively detecting a state of motion of an object at a first frequency;
a second sensing device for selectively detecting the object to determine whether the object is in a specific space at a second frequency, wherein the second frequency is greater than the first frequency; and the power consumption of the second sensing device is smaller than the power consumption of the first sensing device;
a light emitting device, for illuminating the object to make the first sensing device able to detect the state of motion of the object; and
a control unit, coupled to the first sensing device and the second sensing device, for controlling operating states of the first sensing device and the second sensing device;
wherein the first sensing device and the second sensing device are discrete to each other; and the first sensing device and the second sensing device are incorporated into a single System-on-a-Chip (SoC); and when the object leaves from the specific space or the object is motionless, the control unit allows the first sensing device to enter a low power consumption operating state, and the first sensing device accordingly stops detecting.