To provide a communication method capable of transmitting a data train, even if an interference wave occurs with a constant cycle.
If an error detection code is comprised by a header part for transmission, it is normally delivered when no interference wave is outputted, while a header error takes place when the interference wave is outputted. So the header part is transmitted by a plurality of times with an interval corresponding to the greatest common divisor of the occurrence cycle of a plurality of interference waves, to specify the cycle of interference wave. Only when no header error has occurred, will the transmission be delayed by the period equal to the n-th power of 1/2 multiplied by the cycle. Then, the header part is transmitted, after the time period equal to a cycle minus the n-th power of 1/2 multiplied by the cycle, where n is incremented by one, which is repeated at an arbitrary frequency. Thus, the transmission start time of the header part is close to the occurrence time of interference waves to presume approximate occurrence time of interference wave, so that the data train is transmitted by avoiding the time zone in which the interference wave occurs.
MATSUMOTO KAZUNORI
ARAI TAKAYUKI
KUGA AKIYOSHI
