Patent ID: 9414168
Filing Date: 2016-08-09
CPC Classification: H04R

Claim Text:
1. A hearing aid, comprising: a microphone for converting an audio input into a first input signal; telecoil for converting a time-varying electromagnetic field sensed by the telecoil into a second input signal; a digital signal processor (DSP) for processing the first input signal, the second input signal, or a combination thereof into an output signal in a manner that compensates for the patient's hearing deficit; an audio amplifier and speaker for converting the output signal into an audio output; a triaxial magnetometer for measuring a magnetic field produced by a magnet along three orthogonal axes and sending signals corresponding thereto to the DSP; wherein the DSP is configured to use the second input signal generated by the telecoil for producing the output signal when a magnetic field above a specified threshold is measured by the triaxial magnetometer; and, wherein the DSP is configured to detect the presence of objects in the environment of a wearer of the hearing aid that distort the Earth's magnetic field as measured by the triaxial magnetometer.