| 发明名称 |
ELECTRONIC WATCH |
| 摘要 |
PURPOSE:To enable battery life be know even with a 2-hadns watch by providing a logic circuit which changes the movement of the hands at the time when battery voltage is normal and when it has dropped when an external operating member is operated in an electronic watch using a step motor. |
| 申请公布号 |
JPS5342781(A) |
申请公布日期 |
1978.04.18 |
| 申请号 |
JP19760117005 |
申请日期 |
1976.09.29 |
| 申请人 |
SEIKO INSTR & ELECTRONICS |
发明人 |
KASAI YASUHIRO;IKEHATA YUKIO;NAKAO HIDEYUKI;MASUDA SHIGEYUKI;OBARA NOBUO |
| 分类号 |
G01R31/36;G01D7/00;G04C10/04 |
主分类号 |
G01R31/36 |
| 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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