PORTABLE INFORMATION UNIT, METHOD FOR CONTROLLING PORTABLE INFORMATION UNIT, RECORDING MEDIUM AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To suppress the deterioration of the communication sensitivity of a non-contact IC card circuit, the shortening of a communication distance and the occurrence of a communication error even if a display part in the antenna of the non-contact IC card circuit cannot be arranged to be away from each other due to the relation of device sizes. SOLUTION: In a wristwatch 11 capable of making radio communication with an external device through the antenna, it is inhibited that the display part 29 is displayed during a data communication period corresponding to a radio communication start signal when the radio communication start signal is received from an external transmitter-receiver 12.