| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a radio controlled watch capable of compensate the tuning deviation of a receiving antenna even the environment of the receiving antenna is fluctuated. <P>SOLUTION: The radio controlled watch 1 comprises: the external packaging 2 composed of components 10, 14 and 17 of non magnetic metal; the standard radio wave receiving antenna 40 arranged in the external packaging 2; the receiving circuit 63 forming a resonance circuit to the standard radio wave JJY cooperating with the receiving antenna 40; and the magnetic material 50 for correcting the inductance arranged at the position for correction proximity to the receiving antenna 40 in the external package 2 for correcting the inductance of the receiving antenna 40 in the external package 2 so that the standard radio wave receiving antenna 40 might resonance to the standard radio wave JJY by cooperating with the resonance part of the receiving circuit 63. <P>COPYRIGHT: (C)2007,JPO&INPIT |
