| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a time adjustment device, capable of reducing power consumption and improving convenience by allowing rapid acquisition of time information. <P>SOLUTION: A wrist watch with GPS comprises a GPS device which receives satellite signals transmitted from GPS satellites; a time information generating unit that generates internal time information; and a time adjustment device that corrects the internal time information. A control part 20 of the time adjustment device includes a reception control means 51 that controls the GPS device; a determination means 52 that determines whether a received Z count is usable or not; a time adjustment recording means 55 that records whether or not the time was adjusted using second information; a first information time adjustment means 53 that adjusts the internal time with the Z count when the time was adjusted using the second information; and a second information time adjustment means 54 that receives the Z count, a week number and a satellite health state to adjust the internal time when the time was not adjusted using the second information. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
