发明名称 |
Coordinate inputting/detecting apparatus, method and computer program product designed to precisely recognize a designating state of a designating device designating a position |
摘要 |
A coordinate inputting/detecting apparatus for optically detecting a position of a designating device inserted into a flat or substantially flat two-dimensional coordinate inputting/detecting area of the apparatus includes a coordinate determining device to determine two-dimensional coordinates of the designating device in the coordinate inputting/detecting area. A distance determining device determines a distance of the designating device from a surface of the coordinate inputting/detecting area when the designating device is located on or in vicinity to the coordinate inputting/detecting area. A storing device stores information of the two-dimensional coordinates determined by the coordinates determining device and information of the distance determined by the distance determining device so as to be associated with each other. A coordinates change detecting/storing device detects a change of the two-dimensional coordinates information at a predetermined time interval and stores the detected change of the two-dimensional coordinates information. A distance change detecting/storing device detects a change of the distance information at a predetermined time interval and stores the detected change of the distance information. A state allocating device allocates at least one designating state among designating states of the designating device stored in advance, based upon the coordinate change information and the distance change information.
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申请公布号 |
US2003206306(A1) |
申请公布日期 |
2003.11.06 |
申请号 |
US20030448120 |
申请日期 |
2003.05.30 |
申请人 |
OMURA KATSUYUKI;TSUDA KUNIKAZU;SATO MITSURU |
发明人 |
OMURA KATSUYUKI;TSUDA KUNIKAZU;SATO MITSURU |
分类号 |
G06F3/042;G01B11/03;G06F3/033;G06F3/041;G06F3/048;(IPC1-7):G01B11/14 |
主分类号 |
G06F3/042 |
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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