| 摘要 |
PROBLEM TO BE SOLVED: To provide communication equipment in which required security can be kept corresponding to the characteristics of applications when performing processing corresponding to a plurality of applications. SOLUTION: In portable communication equipment 2, a transmitting signal is modulated in a modulation circuit 34 by a super wide band impulse communication system. In the portable communication equipment 2, when performing radio communication with a cash dispenser 3b, an antenna directional control circuit 39 sets an antenna 12 to have directivity by a control signal S32c from a control circuit 32. In the portable communication equipment 2, when performing radio communication with a personal computer 3a, on the other hand, the antenna directional control circuit 39 sets the antenna 12 to be non- directive by the control signal S32c. |
