| 摘要 |
PROBLEM TO BE SOLVED: To eliminate a difference in the power consumption of a battery by equalizing the time of continuous receiving operation for obtaining control data irrelevantly to whether inputted transmit data are received at the front stage or rear stage of a preamble. SOLUTION: When a preamble decision means 1R1 as a preamble part decides decoded data, a sleep time arithmetic means 1R2 computes the sleep time up to the start of the continuous receiving operation for the added control data according to the position of the preamble being received and then a control means 11a controls a controlled system 11b the sleep time later according to the received and decoded control data. Further, an ID code is written to the control data to be sent and a data authenticating means maintains the security of control operation. |
