发明名称 |
DISPOSITIVO PUNTATORE UTILIZZANTE UNA SCHIERA DI FOTORIVELATORI. |
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 |
ITFI930192(D0) |
申请公布日期 |
1993.10.05 |
申请号 |
IT1993FI00192 |
申请日期 |
1993.10.05 |
申请人 |
LOGITECH, INC. |
发明人 |
BIDIVILLE MARC;ARREGUIT JAVIER;VAN SHAIK FLORIS ANDRE';STEENIS BERNARD |
分类号 |
G06F1/16;G06F3/03;G06F3/033;G06F3/038;G06F3/042 |
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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