Patent ID: 6396393
Filing Date: 2002-05-28
Classification: H04B,H04L,Y02B,Y04S

Abstract:
A receiving device for receiving data via a power line transmission network which transmits the same data with the same timing in parallel via a plurality of communication channels by means of superposition on AC power, said receiving device comprising:receiving means for extracting data superimposed on AC power from a particular channel of said network thereby receiving said data; timer means for measuring a channel usage period during which a communication channel is used by said receiving means to receive data; storage means for storing the channel usage period measured by said timer means, for each communication channel; calculation means for calculating the mean channel usage period of each communication channel from the channel usage periods stored in said storage means; and control means which controls said storage means so as to store the channel usage period measured by said timer means for each communication channel, and which controls said receiving means so as to select a communication channel used to receive data on the basis of the mean channel usage periods of the respective communication channels calculated by said calculation means and so as to receive said data using the selected channel.