Patent ID: 9144041
Filing Date: 2015-09-22
Classification: H04B,H04W

Abstract:
1. A wireless device comprising: a Wi-Fi unit having a controllable power output radio frequency amplifier; at least one capacitive sensor and at least one inductive sensor located at each corner of said wireless device; and a microcontroller and memory, said microcontroller further comprising: an inductive sensor interface coupled to the inductive sensors, a capacitive sensor interface coupled to the capacitive sensors, and an analog-to-digital converter (ADC) having analog inputs coupled to the inductive and capacitive sensor interfaces and digital outputs coupled to the microcontroller; wherein the microcontroller determines when there is a change in a capacitance value of any one of the capacitive sensors, thereafter determines whether there is a change in an inductance value of any one of the inductive sensors and whether there is a change in mutual capacitance values between the capacitive sensors; whereby if the capacitive value of any one of the capacitive sensors has changed and the inductive value of any one of the inductive sensors has changed then the power output of the radio frequency amplifier is reduced; and whereby if the capacitive value of any one of the capacitive sensors has changed and any one of the mutual capacitance values has changed then the power output of the radio frequency amplifier is reduced.