Patent ID: 9591409
Date: 2017-03-07
CPC Classifications: A61N,H04R

Claim:
1. A device to transmit an audio signal, the device comprising: at least one light source configured to transmit the audio signal with at least one wavelength of light; at least one detector configured to detect the audio signal and generate at least one electrical signal in response to the at least one wavelength of light; a transducer supported with and configured to vibrate an eardrum wherein the transducer is driven in response to the at least one electrical signal; circuitry configured to receive the audio signal and determine a first energy of the audio signal and a second energy of the audio signal, the circuitry configured to output a first amount of low frequency light energy bias from the at least one light source at a first time and a second amount of low frequency light energy bias from the at least one light source at a second time, the first amount of low frequency light energy bias different from the second amount of low frequency light energy bias in order to accommodate substantially different power consumption of the transducer in response to the first energy different from the second energy.