US 12,276,544 B2
Determining user proximity using ambient light sensor
Eliyahu Barel, Rosh-HaAyin (IL)
Assigned to Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed by Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed on Apr. 13, 2021, as Appl. No. 17/229,648.
Prior Publication US 2022/0326073 A1, Oct. 13, 2022
Int. Cl. G01J 1/42 (2006.01); G06F 3/041 (2006.01); G06F 3/0488 (2022.01)
CPC G01J 1/4204 (2013.01) [G06F 3/0412 (2013.01); G06F 3/0488 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A display device configured for mobile communications, the display device comprising:
an OLED display panel;
a touch sensor;
an ambient light sensor located behind the OLED display panel;
a processor; and
storage comprising instructions executable by the processor to
monitor an ambient light signal from the ambient light sensor,
determine whether the display device is in a dark room setting or a light room setting, the dark room setting comprising a setting in which the ambient light signal increases in intensity as the display device is moved closer to a face, and the light room setting comprising a setting in which the ambient light signal decreases in intensity as the display device is moved closer to the face,
select a threshold based on the ambient light signal, wherein selecting the threshold comprises determining whether to compare an increase in the ambient light signal to a threshold increase based at least on a determination that the display device is in the dark room setting, or compare a decrease in the ambient light signal to a threshold decrease based at least on a determination that the display device is in the light room setting,
detect, in combination with a call event and based at least on the threshold selected, a threshold change in the ambient light signal that is indicative of the display device being proximate to a body of a user, and
based at least on detecting the threshold change in the ambient light signal, modify an operation of the display device.