Patent ID: 9693163
Date: 2017-06-27
CPC Classifications: H02H,H04R

Claim:
1. A polarity control device of a microphone of a portable terminal, the polarity control device comprising: a microphone having a current control element connected between a microphone first polarity terminal and a microphone second polarity terminal; first and second connection terminals connected to the first polarity terminal and the second polarity terminal, respectively, of the microphone; a controller that detects a level of at least one connection terminal of the first and second connection terminals and that determines whether the polarity of the microphone is normally connected; codecs that are each connected to the first and second connection terminals to code an audio signal; and a polarity adjusting unit that is connected between the first and second connection terminals and first and second polarity terminals of the codec and that switches an output of the first connection terminal and the second connection terminal by the control of the controller, when the polarity of the microphone is abnormally connected and that is connected to the codec to align the polarity, wherein the polarity adjusting unit comprises: