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.
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 代理人
主权项
地址