Patent ID: 9668076
Date: 2017-05-30
CPC Classifications: H04R

Claim:
1. A mobile device comprising: a network interface to enable a failure notification be sent from the mobile device to a remote supply management system; and a microphone failure detection circuit to detect a failure of a microphone circuit of a headset coupled to the mobile device by measuring a change in at least one of a microphone bias line signal or a microphone bias line temperature signal, and then signal that a failure notification be transmitted to the remote supply management system using the network interface, wherein the microphone failure detection circuit is configured to compare the measured microphone bias line signal or the microphone bias line temperature signal to a first threshold to detect a predicted future failure of the headset, and to a second threshold to detect a current failure of the headset; and wherein the failure notification refers to a predicted future failure or a current failure of the headset.