| 摘要 |
PURPOSE:To send accurate time signals and to enable time correction in a short time at the corrected side by using existing waves at the receiving function part, and sending out time correction signals including time signals at the transmitting function part. CONSTITUTION:By timer part 9, power is supplied to a receiving part 2 and detecting part 3 from scores of seconds before the set time, for instance, every just time. As a result, a time announcement signal is detected, and a pulse to reset all stages of frequency dividing part 5 and the second counter part of a time measuring counter part 6 is sent out from the detecting part 3. Accordingly, the watch function part B is normalized to the correct time, and the power source at the receiving function part A is cut off. On the other hand, the output from each stage of time measuring counter part 11 is inputted into a signal making part 11, which is mainly composed of data selector, and the input end of transmission control part 10 to determine the transmission period is connected with the output end of the frequency dividing part 5, so that correction signals including time signals are sent out every second. |
