Backlight for touchless gesture detection
First Claim
1. A device to detect a gesture performed by an object in touch-less communication with the device, the device comprising:
- two or more ambient light sensors arranged at respective first surface locations of the device, each of the two or more ambient light sensors configured to sense light intensity at the respective first surface locations; and
one or more processors configured to;
operate one or more light sources at respective second surface locations of the device based on the light intensity sensed by the two or more ambient light sensors,detect the gesture based on the light intensity sensed by each of the two or more ambient light sensors,monitor an ambient light level based on the light intensity sensed by the two or more ambient light sensors,in response to detecting that the ambient light level is below a minimum threshold level, turn on the one or more light sources if the ambient light level remains below the minimum threshold level for a predetermined duration after detecting that the ambient light level is below the minimum threshold level, andcalibrate the two or more ambient light sensors upon turning on the one or more light sources when the ambient light level drops below the minimum threshold level.
3 Assignments
0 Petitions
Accused Products
Abstract
A device and method to detect a gesture performed by an object in touch-less communication with the device are described. The device includes two or more ambient light sensors arranged at respective first surface locations of the device, each of the two or more ambient light sensors sensing light intensity at the respective first surface location. The device also includes one or more processors to operate one or more light sources at respective second surface locations of the device based on the light intensity sensed by the two or more ambient light sensors, and detect the gesture based on the light intensity sensed by each of the two or more ambient light sensors.
149 Citations
15 Claims
-
1. A device to detect a gesture performed by an object in touch-less communication with the device, the device comprising:
-
two or more ambient light sensors arranged at respective first surface locations of the device, each of the two or more ambient light sensors configured to sense light intensity at the respective first surface locations; and one or more processors configured to; operate one or more light sources at respective second surface locations of the device based on the light intensity sensed by the two or more ambient light sensors, detect the gesture based on the light intensity sensed by each of the two or more ambient light sensors, monitor an ambient light level based on the light intensity sensed by the two or more ambient light sensors, in response to detecting that the ambient light level is below a minimum threshold level, turn on the one or more light sources if the ambient light level remains below the minimum threshold level for a predetermined duration after detecting that the ambient light level is below the minimum threshold level, and calibrate the two or more ambient light sensors upon turning on the one or more light sources when the ambient light level drops below the minimum threshold level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method of detecting a gesture made by an object in touch-less communication with a device, the method comprising:
-
sensing, using two or more ambient light sensors arranged at respective surface locations of the device, light intensity at the respective first surface locations; controlling, using one or more processors, one or more light sources at respective second surface locations based on the light intensity sensed by the two or more ambient light sensors, wherein controlling the one or more light sources includes the one or more processors monitoring an ambient light level based on the light intensity sensed by the two or more ambient light sensors; detecting, using the one or more processors, the gesture based on the light intensity sensed by each of the two or more ambient light sensors; detecting, using the one or more processors, that an ambient light level is below a minimum threshold level, wherein the ambient light level is based on the light intensity sensed by the two or more ambient light sensors; using the one or more processors to turn on the one or more light sources if the ambient light level remains below the minimum threshold level for a predetermined duration in response to detecting that ambient light level is below the minimum threshold level; and the one or more processors calibrating the two or more ambient light sensors upon turning on the one or more light sources when the ambient light level drops below the minimum threshold level. - View Dependent Claims (11, 12, 13, 14, 15)
-
Specification