Patent ID: 6377823
Filing Date: 2002-04-23
Classification: G08B,H04M,H04W

Abstract:
A cellular mobile telephone system comprising a cellular mobile telephone apparatus capable of sending a message through a connectable base station even in a case of traveling across cells each of which being formed by a different base station, and a peripheral apparatus which is provided separately from said cellular mobile telephone apparatus and is capable of communicating bidirectionally with said cellular mobile telephone apparatus,wherein said cellular mobile telephone comprises: a receiving/transmitting device for receiving and transmitting radio frequency signals between a base station and said cellular mobile telephone; a modulating/demodulating device for demodulating the radio frequency signals into a digital signal including an audio signal and a control signal and for modulating the digital signal into the radio frequency signals; a controlling device for controlling operation of said cellular mobile telephone apparatus in accordance with the control signal; and; a first communicating device for performing bidirectional communication with said peripheral apparatus, said first communicating device transmitting a first control information for controlling operation of said peripheral apparatus; and wherein said peripheral apparatus comprises: an inputting device for inputting a second control information; a second communication device for performing bidirectional communication with the cellular mobile telephone; and a control device for controlling operation of said peripheral apparatus in accordance with said first control information, said control device performing control of said cellular mobile telephone apparatus through said second communication device according to said second control information either for sending back a message notifying that the call cannot be received through said connectable base station or for changing said cellular mobile telephone apparatus into a recording mode by inputting an instruction for controlling said cellular mobile telephone.