US 10,649,539 B1 · Hand temperature compensation

Abstract

Systems and methods for calibrating presence and gesture detection thermal sensors in a mobile electronic communications device entail sensing an ambient temperature and designating the sensed ambient temperature as room temperature, and determining that a user appendage has touched, or is close to but not touching, the thermal sensor. If the user appendage has touched a lens of the thermal sensor, a sensed temperature just prior to that event is used as hand temperature. If the user appendage is close to but not touching the lens of the thermal sensor, the temperature during that event is used as hand temperature. A difference between the hand temperature and the room temperature is then determined and the presence and gesture detection functions for the device are calibrated based on the determined difference.

Claims16

Dependent claims

A method of calibrating presence and gesture detection in a mobile electronic communications device having a thermal sensor, the method comprising:

sensing a background temperature via the thermal sensor and designating the sensed background temperature as room temperature;
detecting via a secondary sensor located adjacent to the thermal sensor that a user has touched the thermal sensor;
setting a temperature detected at the thermal sensor just prior to the detected touch as hand temperature;
determining a difference between the hand temperature and the room temperature;
and
calibrating presence and gesture detection for the device based on the determined difference.

3 more elements

Dependencies are inferred from the claim text.

Hand temperature compensation

Life of this patent

Hand temperature compensation

Life of this patent

Abstract

Claims16