Patent ID: 6807434
Filing Date: 2004-10-19
Classification: H04M

Abstract:
A communication system for a mobile or a cellular telephone to be installed inside a car, comprising:a microphone connected by a wire to the mobile or cellular telephone for receiving a first voice signal from a user and then transmitting the first voice signal to the mobile or cellular telephone; a transmitter connected to the mobile or cellular telephone for receiving, a second voice signal from the telephone and then converting the second voice signal into a wireless signal so that the wireless signal is broadcast by the transmitter, wherein the transmitter can be an separated unit or a built-in unit in the mobile or cellular telephone; and a receiver earphone for picking up the wireless signal from the transmitter and then converting the wireless signal into a third voice signal for hearing by the user, wherein the transmitter and the receiver earphone are coupled in a wireless manner, and the receiver earphone forms a stand-alone unit that is not connected to the microphone.