Patent ID: 9449561
Filing Date: 2016-09-20
CPC Classification: G09G

Claim Text:
1. A method comprising: determining an initial display brightness setting for a display of a device; determining, using an ambient light sensor, a first ambient light measurement; determining, using a lookup table, a revised display brightness setting based at least in part on the first ambient light measurement, wherein the revised display brightness setting is different from the initial display brightness setting; determining an intermediate display brightness setting, the intermediate display brightness setting corresponding to a minimum increase from the initial display brightness setting that causes a specified increase in ambient light measurement; adjusting a brightness level of the display based on the intermediate display brightness setting; determining, using the ambient light sensor, a second ambient light measurement upon adjusting the brightness level of the display based on the intermediate display brightness setting; determining a difference between the first ambient light measurement and the second ambient light measurement; determining that the difference between the first and the second ambient light measurements is less than the specified increase in the ambient light measurement; and determining that the ambient light sensor is at least partially blocked based at least in part on the determining that the difference between the first and the second ambient light measurements is less than the specified increase in the ambient light measurement.