发明名称 |
Pointing device transducer using thick film resistor strain sensors. |
摘要 |
<p>A cursor control pointing device for controlling a computer screen cursor includes a post, a rigid base for the post and thick film resistors on the sides of the post operating as strain gages to sense sideways and front-to-back flexure of the post. The thick film resistors are piezoresistive, changing resistivity with strain. Two resistor divider networks are formed, one with right and left side resistors to sense X-axis flexure, and one with front and back resistors to sense Y-axis flexure. The voltages divided by the networks are processed to form a cursor control signal to move the cursor in X and Y coordinates on the computer display screen. <IMAGE></p> |
申请公布号 |
EP0681261(A1) |
申请公布日期 |
1995.11.08 |
申请号 |
EP19950480024 |
申请日期 |
1995.03.21 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
RUDISILL, CHARLES ALBERT;WINSTEAD, RUSSELL EVANS |
分类号 |
G06F3/033;G01L5/22;G05G9/047;G06F3/038;G06F3/048;(IPC1-7):G06K11/18 |
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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