发明授权
- 专利标题： Wristwatch with pressure sensor
- 专利标题（中）： 手表带压力传感器
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申请号： US165361申请日： 1988-02-29
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公开(公告)号： US4783772A公开(公告)日： 1988-11-08
- 发明人: Toshio Umemoto , Toshio Hiruta , Hideo Uehara , Masato Yamada , Kunikazu Mochida
- 申请人： Toshio Umemoto , Toshio Hiruta , Hideo Uehara , Masato Yamada , Kunikazu Mochida
- 申请人地址： JPX Tokyo
- 专利权人： Citizen Watch Co., Ltd.
- 当前专利权人： Citizen Watch Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX60-039107[U] 19850319; JPX60-213322 19850926; JPX60-213323 19850926
- 主分类号： B63C11/02
- IPC分类号： B63C11/02 ; G01C5/06 ; G01C13/00 ; G04B47/06 ; G04G21/02 ; G01L9/00
摘要：
An electronic diving wristwatch having a pressure sensing depth meter provided in a projection on a case of the watch without interferring with the existing crown, pushbuttons, etc. The depth meter has a piezoelectric type sensing element which produces electrical output in response to the water pressure. The output is converted to a water depth which is displayed in a digital display window of the watch.
公开/授权文献
- US6112841A Positioning apparatus for a speedometer gear box 公开/授权日：2000-09-05