发明授权
US06429856B1 Coordinate position inputting/detecting device, a method for inputting/detecting the coordinate position, and a display board system
有权
坐标位置输入/检测装置，用于输入/检测坐标位置的方法以及显示板系统
- 专利标题： Coordinate position inputting/detecting device, a method for inputting/detecting the coordinate position, and a display board system
- 专利标题（中）： 坐标位置输入/检测装置，用于输入/检测坐标位置的方法以及显示板系统
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申请号： US09307809申请日： 1999-05-10
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公开(公告)号： US06429856B1公开(公告)日： 2002-08-06
- 发明人: Katsuyuki Omura , Kunikazu Tsuda , Makoto Tanaka
- 申请人： Katsuyuki Omura , Kunikazu Tsuda , Makoto Tanaka
- 优先权： JP10-127035 19980511; JP10-218271 19980731; JP11-115473 19990422
- 主分类号： G09G500
- IPC分类号： G09G500
摘要：
In the coodinate-position inputting/detecting device, the light receiving/emitting devices emit light beams spreading in a fan shape and travelling along an entry area. The light receiving/emitting device also receiving the light beam reflected by a recursive reflecting member and detect the distribution of the intensity of the received light beam. The coordinates of a position of a pointing body such as a user's fingertip or a pen inserted in the entry area is identified using the distribution of intensity detected by the light receiving/emitting devices.
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