	US 11,996,023 B2
	Viewer synchronized illumination sensing
Timo Kunkel, Kensington, CA (US)
Assigned to DOLBY LABORATORIES LICENSING CORPORATION, San Francisco, CA (US)
Appl. No. 17/640,803
Filed by DOLBY LABORATORIES LICENSING CORPORATION, San Francisco, CA (US)
PCT Filed Sep. 3, 2020, PCT No. PCT/US2020/049239 § 371(c)(1), (2) Date Mar. 4, 2022, PCT Pub. No. WO2021/046242, PCT Pub. Date Mar. 11, 2021.
Claims priority of provisional application 62/896,203, filed on Sep. 5, 2019.
Claims priority of application No. 19195627 (EP), filed on Sep. 5, 2019.
Prior Publication US 2022/0375378 A1, Nov. 24, 2022
Int. Cl. G09G 3/20 (2006.01); G06F 3/01 (2006.01); H04R 1/10 (2006.01)

CPC G09G 3/20 (2013.01) [G06F 3/012 (2013.01); H04R 1/1041 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0242 (2013.01); G09G 2320/0626 (2013.01); G09G 2320/066 (2013.01); G09G 2320/0666 (2013.01); G09G 2354/00 (2013.01); G09G 2360/144 (2013.01)]

23 Claims

1. A method to compensate for a light source perceived in a field of view of a viewer of a display device, the method comprising:

receiving sensor data from one or more light sensors mounted on a wearable device worn by the viewer, wherein a field of view for the light sensors covers at least the field of view of the viewer;

identifying the light source perceived in the field of view of the viewer based on the sensor data;

determining whether the light source is a light source reflected off a surface of the display device;

if the light source is a light source reflected off a surface of the display device, analyzing an average luminance and a variation of luminance for the surface of the display device; and

identifying if the light source is a diffuse ambient light source or a glare light source based on the average luminance and the variation of luminance; and

performing one or more operations, by a display controller of the display device, to compensate for a change in brightness or color of content displayed by the display device caused by the light source, based at least in part on light source information of the light source identified.

23. A method to identify a light source, the method comprising:

receiving sensor data from one or more light sensors mounted on or close to a display device in a room, wherein the one or more light sensors is directed at a viewer viewing the display device;

identifying a reflection for a light source on a passive surface of the viewer based on the sensor data;

determining whether the light source is a light source reflected off a surface of the display device;

analyzing the light source to be a glare light source or an ambient light source based on the reflection by analyzing an average luminance and a variation of luminance for the surface of the display device;

identifying if the light source is a diffuse ambient light source or a glare light source based on the average luminance and the variation of luminance; and

performing one or more operations based at least in part on the analysis.