Patent ID: 8836477

Claim:
A portable communication machine comprising: a portable communication portion including: a RF data generator configured to generate a transmission data to a vehicle-mounted machine provided to a vehicle constituting an object of control by using a previously registered inherent identification data and a control data of the vehicle, a RF wireless transmitter configured to transmit the data generated by the RF data generator as a RF signal from an antenna to the vehicle-mounted machine, a RF wireless receiver configured to receive the RF signal transmitted from the vehicle-mounted machine, a RF data analyzer configured to analyze the data outputted by the RF wireless receiver, a key configured to control the vehicle by a user, a storing device used for storing a control data with regard to a vehicle-mounted information apparatus of the vehicle of the control object, a controller configured to control the RF data generator, the RF data analyzer, the key and the storing device; and an external communication portion including: an external apparatus communicating device having an interface for transmitting and receiving a data communication between an external apparatus and the portable communication portion, a secondary battery driving the external apparatus communicating device and the control of the vehicle's keyless operations can be carried out by the portable communication portion regardless of a remaining amount of the secondary battery of the external communicating portion; and wherein the portable communication portion and the external communication portion are constituted by an attachable and detachable structure.