发明名称 |
Optical three-dimensional coordinate sensor system and method thereof |
摘要 |
The present invention relates an optical three-dimensional coordinate sensor system and method thereof. A plurality of light-emitting modules produce a plurality of light signals, and then a plurality of reflected light signals reflected by an object are received by a plurality of photodetectors. After receiving the reflected light signals, the photodetectors generate a plurality of photocurrents. A plurality of active pixel circuits receive the photocurrents and transform the photocurrents to a plurality of reflective optical voltages. A plurality of differential amplifier circuits (DAC) compare the reflective optical voltages and the background voltages, and then output a plurality of DAC output voltages of the reflected light signals. Afterward, a processing module detects the DAC output voltages and uses an algorithm to calculate the top three of the DAC output voltages to determine the three-dimensional coordinate of the object. |
申请公布号 |
US8513585(B2) |
申请公布日期 |
2013.08.20 |
申请号 |
US20100838755 |
申请日期 |
2010.07.19 |
申请人 |
CHAO PAUL C. P.;LIN TZU-YANG;CHEN WEI-DAR;NATIONAL CHIAO TUNG UNIVERSITY |
发明人 |
CHAO PAUL C. P.;LIN TZU-YANG;CHEN WEI-DAR |
分类号 |
G01B11/14;G01C3/08;G01J1/42 |
主分类号 |
G01B11/14 |
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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