×

Sliding bias and peak limiting for optical hearing devices

  • US 10,531,206 B2
  • Filed: 02/06/2018
  • Issued: 01/07/2020
  • Est. Priority Date: 07/14/2014
  • Status: Active Grant
First Claim
Patent Images

1. A hearing apparatus to transmit an audio signal to an ear of a user with light, comprising:

  • an input to receive the audio signal;

    a light source to generate an optical signal;

    an output transducer to receive the optical signal from the light source; and

    a processor coupled to the input, the processor configured with instructions to receive the audio signal,determine a bias of the audio signal and a biased audio signal in response to the audio signal, andoutput the biased audio signal to circuitry to drive the light source with the biased signal in order to decrease light energy of the optical signal transmitted from the light source,wherein the processor comprises instructions for a look ahead delay to decrease the gain to inhibit clipping in response to a negative signal below a threshold amount detected with the look ahead delay.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×