Patent ID: 8320591
Filing Date: 2012-11-27
Classification: H04M,H04R,H04S

Abstract:
1. An ANR headset system for coupling to output of an aircraft radio intercom, the headset comprising: ANR circuitry that generates a noise reduction signal for an ANR driver in response to an ANR microphone; a first input for receiving audio signals from the aircraft radio intercom; a second input for receiving audio signals from a digital music player; a wireless transceiver coupled to the ANR circuitry for communicating wirelessly with a mobile telephone; comparison circuitry within the headset system that compares an intercom output signal from the aircraft radio intercom to a threshold; decoupling circuitry that electrically decouples the intercom output signal from an input signal path of the ANR circuitry; and attenuating circuitry coupled to the first input and the second input that selectively attenuates audio signals from the second input when the first input is receiving audio signals from the aircraft radio intercom that exceed the threshold as determined by the comparison circuitry.