Patent ID: 7831217
Filing Date: 2010-11-09
Classification: H04B,H04W

Abstract:
1. An external speaker/microphone apparatus for a radio transceiver, said apparatus comprising: a speaker; a microphone; a push-to-talk switch; an emergency switch; an encoder module operatively coupled to the push-to-talk switch and the emergency switch and configured to generate a digital identification each time the push-to-talk switch is pressed, and a digital emergency signal and digital identification when the emergency switch is pressed; and a connector configured to operatively couple audio to the speaker from the radio transceiver, a combination audio signal from the microphone and the encoder module to the radio transceiver, and said connector further configured to operatively couple the push-to-talk switch and the emergency switch to the radio transceiver so that the radio transceiver is switched to a transmit mode when either the push-to-talk switch or the emergency switch is pressed.