Patent ID: 9094767
Filing Date: 2015-07-28
Classification: H04R

Abstract:
1. A switchable plug comprising: a first incoming line configured to carry a signal from a source device; a second incoming line configured to carry a signal from the source device; a Mic Bias output line; a Ground output line; and a switch control operably connected with the first incoming line configured to carry a signal from the source device, the second incoming line configured to carry a signal from the source device, the Mic Bias output line and the Ground output line, the switch control configured to detect a type of the signal carried on the first incoming line from the source device and a type of the signal carried on the second incoming line from the source device by determining a voltage of the first incoming line and a voltage of the second incoming line, and comparing the voltage of the first incoming line and the voltage of the second incoming line, the switch control further configured to automatically route a Mic Bias type signal to the Mic Bias output line and a Ground type signal to the Ground output line, without user intervention.