发明名称 |
Device for controlling cursor on computer screen |
摘要 |
A cursor control device for personal computers and workstations includes a randomly speckled ball illuminated with diffuse lighting. An image of at least a portion of the illuminated area of the speckled ball is focused by an optical element such as a diffractive optical element onto a photosensitive array. Logic associated with the photosensitive array determines movement of the ball across the array, and translates that movement into conventional cursor control signals supplied to a host system. |
申请公布号 |
GB2271847(A) |
申请公布日期 |
1994.04.27 |
申请号 |
GB19930020402 |
申请日期 |
1993.10.04 |
申请人 |
* LOGITECH INC |
发明人 |
MARC * BIDIVILLE;JAVIER * ARREGUIT;FLORIS ANDRE * VAN SHAIK;BERNARD * STEENIS;FABIEN * DROZ-DIT-BUSSET;HARTHMUTH * BUCZEK;ALDO * BUSSIEN |
分类号 |
G06F1/16;G06F3/03;G06F3/033;G06F3/038;G06F3/042;(IPC1-7):G06K11/18 |
主分类号 |
G06F1/16 |
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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