COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To suppress the increase of the cost of power consumption due to a fact that the loss of data can be evaded by the conventional power preservation technique but the power needed for some transceivers is continuously increasing in a two-way data communication system. SOLUTION: A communication system 10 includes a 1st data source 12 connected to a 1st transceiver 14 and a 2nd data source 22 connected to a 2nd transceiver 18. The transceivers 14 and 18 are connected to each other via a data bus 20 to perform the two-way communication between both sources 12 and 22. A two-way power preservation control circuit 25 is connected to both transceivers 14 and 18 and increases the power of the transceiver 14 or 18 according to the transmission of data carried out by the source 22 or the enabling signal received from the source 12.