VEHICLE ENTERTAINMENT SYSTEM HAVING GROUND NOISE REDUCTION AND METHOD OF OPERATING THE SAME

摘要

A vehicle entertainment system and method that alternately configures an input of the entertainment system as a differential input that is decoupled from a ground point, or as ground referenced input that is coupled to a ground point. A noise detector determines a noise signal value for a ground switch module that alternately changes a switch state between a coupled state that couples the common channel connection to the ground point, and a decoupled state that decouples the common channel connection from the ground point, based upon the noise signal value being greater than a threshold.