| 摘要 |
<P>PROBLEM TO BE SOLVED: To allow a calender control apparatus to enhance its versatility, since even for a clock without calender functions can use a common time control apparatus by providing the time control apparatus and to provide the calender control apparatus for each unit. <P>SOLUTION: A calender unit 50 has a calender control apparatus 51, having a midnight signal input terminal 51A where a midnight signal (trigger signal) is inputted. The calender IC chip 51 receives a midnight signal supplied from a clock unit 10, drives a calender drive section 60, and displays a data display section 70. There is no mechanical connections, such as a wheel train between the clock unit 10 and the calender unit 50, thus simplifying the mechanism and making the IC chip versatile. <P>COPYRIGHT: (C)2003,JPO |
