发明名称 |
Wireless input system for computer using elevated four-division photodetector |
摘要 |
A wireless input system for a computer includes a pen-type input device and an input device body. The pen-type input device comprises a light emitting element for emitting a pulse of light. The input device body comprises at least one optical system unit including a light receiving element for receiving the pulse of light emitted from the light emitting element of the pen-type input device and a circuit for calculating the outputs from the light receiving element to obtain the position abscissa of the pen-type input device.
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申请公布号 |
US5585619(A) |
申请公布日期 |
1996.12.17 |
申请号 |
US19950569665 |
申请日期 |
1995.12.08 |
申请人 |
DATA STREAM CORPORATION |
发明人 |
GOTO, HIDEO;FUJITA, MANABU |
分类号 |
G06F3/033;G06F3/042;H04B10/10;H04B10/105;H04B10/22;(IPC1-7):H01J40/14 |
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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