| 摘要 |
PROBLEM TO BE SOLVED: To provide a sampling method in which the sampling operation of respective terminal processors arranged so as to be distributed is synchronized surely. SOLUTION: A sampling method is provided with a reception circuit 31 which receives time information to be transmitted, by radio waves, to respective terminal processors, with a frequency-signal generation circuit 32, with a PLL circuit 33, with a radio-wave monitoring circuit 34 and with a sample-and-hold circuit 35. When the radio waves are not received, the radio-wave monitoring circuit 34 is operated. By its operation, the sample-and-hold circuit 35 holds the input of a voltage-controlled oscillator 33c at the PLL circuit 33. |
