发明名称 |
Radio corrected clock |
摘要 |
A radio correcting timepiece that can reduce the influence of a radio wave situation of the standard radio wave having time information according to an area, and can make a correction to the exact time in a shorter time is provided. The radio correcting timepiece comprises a signal receiving means ( 1 ) for receiving a standard radio wave and a timepiece means ( 2 ) for correcting and displaying time on the basis of the time information outputted from the signal receiving means. The signal receiving means ( 1 ) can receive plural standard radio waves and includes memory means ( 1 I) which is able to store signal receiving order of the plural standard radio waves. Since the plural standard radio waves can be received, the influence of a radio wave situation according to an area can be reduced and a correction to the exact time can be made in a shorter time by using the standard radio wave transmitted every minute.
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申请公布号 |
US7408845(B2) |
申请公布日期 |
2008.08.05 |
申请号 |
US20040487996 |
申请日期 |
2004.02.27 |
申请人 |
CITIZEN HOLDINGS CO., LTD. |
发明人 |
IHARA TAKASHI;SAKUYAMA MASAO;TAKADA AKINARI;NAMEKAWA MASAAKI |
分类号 |
G04C11/02;G04G5/00;G04G21/04;G04R20/00;H04L7/00 |
主分类号 |
G04C11/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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