Transmission power control in a data communication equipment

摘要

To Provide a Data Communication Equipment that is characterized low power consumption and resistive to leakage of confidential information. The data communication system is consisted of the first communication equipment and the second communication equipment. The first communication equipment is consisted of a transceiver that sends a conditional signal and receives the reception if formation that the second communication equipment received the signal and a controlling algorithmn that commands the transceiver to reduce its transmitting power either until when the transceiver receives the information that the reception condition is poor for the second communication equipment or until when the transceiver receives no more signal from the second communication equipment. The second communication equipment has the features as the second reception method which is the reception of the conditional signals, and the second controlling method which is consisted of the evaluation of the quality of the signal and creation of the reception information, and the second transmission method which is the transmission of the reception information to the first communication equipment.