| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic clock which performs time measurement to digits of 1/1000 sec.SOLUTION: An electronic clock comprises a count value table 800 in which a count clock of 32.768 kHz is counted 33 times and defined as first 1/1000 sec ("33"), a count clock of 32.768 kHz is counted 32 times and defined as a second 1/1000 sec ("32"), and 768 times of the first 1/1000 sec ("33") and 232 times of the second 1/1000 sec ("32") are combined in a predetermined order and become 1 sec. Based on a count value of the count value table 800 corresponding to an address value of an address counter 909, a 1000 Hz counter 908 outputs 1000 Hz, thereby performing time measurement to digits of 1/1000 sec. |
