PURPOSE: To construct an electric power saving system turning-on the power source of a terminal only when it is needed by turning-on the power source of the terminal main body in a slave station and thereby starting an application in respect to a starting request from the radio equipment of a master station.
CONSTITUTION: A slave station terminal 1 is normally set on standby in the state of turning-off the power source, and only a slave station radio equipment 2 waits for a call from the master station in the state of turning-on the power source. In this case, a master station terminal 6 calls the slave station by using a master station radio equipment 2 according to a request (file transfer request or user call request) from the master station. However, the slave station radio equipment 2 detects the call from the master station and turns-on the power source of the slave station terminal 1. Further, a radio start detecting flip-flop 4 is set so that a system program can detect the start of the terminal by activating the radio.
MASUBUCHI SHINICHI