发明授权
- 专利标题: Electronic apparatus, mobile terminal, and velocity measuring method
- 专利标题(中): 电子仪器,移动终端和速度测量方法
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申请号: US14251166申请日: 2014-04-11
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公开(公告)号: US09229023B2公开(公告)日: 2016-01-05
- 发明人: Kouichirou Kasama
- 申请人: FUJITSU LIMITED
- 申请人地址: JP Kawasaki
- 专利权人: FUJITSU LIMITED
- 当前专利权人: FUJITSU LIMITED
- 当前专利权人地址: JP Kawasaki
- 代理机构: Maschoff Brennan
- 主分类号: G01P3/68
- IPC分类号: G01P3/68 ; G01C21/00 ; G06F17/40 ; G06F19/00 ; G01P3/36 ; G01S7/48 ; G01S17/08 ; G01S17/58 ; G01S17/87 ; G01S17/88
摘要:
An electronic apparatus includes a processor configured to select a type of an object subject to measurement; calculate a first distance to the object, based on output of a first sensor configured to detect passing of the object; calculate a second distance to the object, based on output of a second sensor configured to detect passing of the object; obtain based on the first distance, a first time point at which the object passes the first sensor; obtain based on the second distance, a second time point at which the object passes the second sensor; and calculate based on the first and second time points and a distance between the first and second sensors, a velocity of the object. The processor drives the first and second sensors at measurement time intervals corresponding to the type, and causes the first and the second sensors to detect the passing of the object.
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