Patent ID: 8775103

Claim:
A method comprising: under control of a user device configured with executable instructions, measuring capacitance using a proximity sensor to obtain proximity data that indicates whether the user device is within a threshold distance of a human body; calculating refined proximity data by analyzing the proximity data and removing outlier data; in response to determining at a first time that the refined proximity data is within a threshold range of previously obtained proximity data, transmitting information at a first set of transmission power levels, the first set of transmission power levels being based on capacitance values related to the previously obtained proximity data, and the first set of transmission power levels being set to reduce by a first amount from a current level, radiation emitted by the user device when the user device is within the threshold distance from the human body; and in response to determining at a second time that the refined proximity data is outside the threshold range of the previously obtained proximity data, transmitting additional information at a second set of transmission power levels, the second set of transmission power levels being based on capacitance values related to default proximity data that is different from the previously obtained proximity data, the second set of transmission power levels being set to reduce by a second amount from the current level, the amount of radiation emitted by the user device when the user device is within the threshold distance from the human body, and the first amount being different from the second amount.