WIRELESS MICROPHONE HAVING ABILITY CHANNEL ACCESS

摘要

PURPOSE: A wireless microphone with a channel-access function and a power-off function is provided to reduce power consumption by automatically turning the power of the microphone off unless a user input voice signal in three minutes. CONSTITUTION: A voice signal input unit(2) converts the voice of a user to electronic voice signal. A transmitter control unit(8) receives the electronic voice signal from the voice signal input unit through a level conversion unit(7). Unless the voice of the user is input in three minutes, the transmitter automatically turns the power of the microphone off. A charge sensor and a data conversion unit(13) receive channel information and an identification number. The channel information and the identification number are transmitted to the transmitter.