| 摘要 |
PURPOSE:To hold the precision of a watch at a computer use time easily and surely, by relating the time with the computer use to correct the time automatically on a basis of gaining and losing information written to the RAM which is backed up by a battery. CONSTITUTION:When computer 1 becomes ready in use by power supply, preceding correction data, time, gaining and losing information for the watch after elapse of the time, and so on stored in gaining and losing information memory 9 of the RAM which is backed up by a battery are read through computer 1, and simultaneously, contents of counters 4a-4f of the watch which is always driven by the battery are read. Computer 1 corrects counters 4a-4f through write data selector 11 on a basis of gaining and losing information and erwrites the correction data of memory 9. By relating the time with computer to correct the time automatically in this manner, the precision of the watch for computer use is held easily and surely. |
