发明名称 |
Coordinate input apparatus, control method therefor, and computer-readable memory |
摘要 |
A signal waveform detection circuit detects the three-dimensional coordinate value of an indicating tool which is defined in the first, second, and third dimensions. An arithmetic control circuit compares the coordinate value in the first dimension of the three-dimensional coordinate value with a predetermined value, and controls outputting of the coordinate values in the second and third dimensions on the basis of the comparison result.
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申请公布号 |
US6862019(B2) |
申请公布日期 |
2005.03.01 |
申请号 |
US20020066569 |
申请日期 |
2002.02.06 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
KOBAYASHI KATSUYUKI;YOSHIMURA YUICHIRO;SATO HAJIME |
分类号 |
G06F3/041;G06F3/033;G06F3/043;(IPC1-7):G09G5/00;G08C21/00 |
主分类号 |
G06F3/041 |
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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