发明授权
- 专利标题： Energy saving timepiece
- 专利标题（中）： 节能钟表
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申请号： US117895申请日： 1993-09-07
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公开(公告)号： US5457664A公开(公告)日： 1995-10-10
- 发明人: Takahiro Izukawa , Yukari Hoshino , Takumi Matsuda
- 申请人： Takahiro Izukawa , Yukari Hoshino , Takumi Matsuda
- 申请人地址： JPX
- 专利权人： Seikosha Co., Ltd.
- 当前专利权人： Seikosha Co., Ltd.
- 当前专利权人地址： JPX
- 优先权： JPX4-239295 19920908
- 主分类号： G04C3/00
- IPC分类号： G04C3/00 ; G04C3/14 ; G04G19/12 ; G04B10/04
摘要：
A timepiece has movable indicator hands for the analog display of current time. An ambient state, such as ambient light intensity, presence of a person in a room, or infrared radiation is sensed. Whether or not time indication is necessary is determined depending on the ambient state. If it is determined that the ambient state indicates that time indication is not necessary, then the movement of the indicator hands is stopped to conserve energy and reduce noise. When the ambient state indicates that time indication is necessary, the position of the indicator hands is adjusted from a stop position to a position indicative of current time.
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