发明名称 |
Automatic coordinate determining device having electrostatic shielding |
摘要 |
An automatic coordinate determining device has a coordinate tablet comprised of a plurality of conductive lines, and a hand-held probe positionable relative to the tablet for inducing a signal in the conductive lines. A thin film of non-magnetic conductive material, such as aluminum or copper, is provided above the upper surface of the conductive lines for eliminating electrostatic induction caused by floating capacitance attributable to the hand which holds the probe.
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申请公布号 |
US4497977(A) |
申请公布日期 |
1985.02.05 |
申请号 |
US19830471821 |
申请日期 |
1983.03.03 |
申请人 |
KABUSHIKI KAISHA DAINI SEIKOSHA |
发明人 |
SAITO, YASUHIRO;TATEMICHI, TAKAOMI |
分类号 |
G06F3/033;G06F3/044;(IPC1-7):G08C21/00 |
主分类号 |
G06F3/033 |
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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