| 摘要 |
PROBLEM TO BE SOLVED: To solve such problems that the load of power consumption is large if periodic automatic receptions are made at normal frequency during in a power saving state, and the time display becomes incorrect when the power saving state is released if the receptions are entirely prohibited. SOLUTION: A receiving operation control means 6 controls a receiving means 4 to periodically reduce the frequency of automatic receptions of standard time radio waves based on the count signals from a counting means 33 and based on the output of a power generation state detecting means 7. |
