| 摘要 |
PROBLEM TO BE SOLVED: To decrease the communication cost by arranging a data receiver to stop undesired communication from a data transmitter to the data receiver. SOLUTION: A data receiver sets senders of communication data not required to be received as undesired senders (step A1) and when communication data are sent, the receiver starts reception of the communication data (step A3), identifies the sender of the communication data (step A4) and when the sender of the communication data to be identified is set as the undesired sender (step A5), the receiver stops the reception of communication data on the way (step A11), the data transmitter sends communication data only to a destination not set as an undesired destination (steps A1, A2), and when the transmitter detects it that the reception of communication data is stopped on the way, the destination stopping the reception of communication data on the way is set as an undesired destination (step A12). |
