发明名称 |
METHOD AND DEVICE OF MEASURING THE DISTANCE TO AN OBJECT |
摘要 |
To measure the distance to points on an object by radiating a periodic amplitude-modulated optical signal to the object and detecting the phase difference between the radiated optical signal and a reflected optical signal from the object, a first photo-detection control signal is generated to control the radiation of the optical signal. A mask signal is generated such that the mask signal is activated at least during a shuttering duration for resetting the voltage level at a sensing node (associated with an operation of a previous frame). A second photo-detection control signal is generated based on the first photo-detection signal and the mask signal such that the second photo-detection signal is deactivated or masked at least during the shuttering duration. |
申请公布号 |
US2014002636(A1) |
申请公布日期 |
2014.01.02 |
申请号 |
US201313893812 |
申请日期 |
2013.05.14 |
申请人 |
LEE HAN-SOO;KONG HAE-KYUNG;KIM KYUNG-IL;OH MIN-SEOK;KIM TAE-CHAN;LIM MOO-SUP |
发明人 |
LEE HAN-SOO;KONG HAE-KYUNG;KIM KYUNG-IL;OH MIN-SEOK;KIM TAE-CHAN;LIM MOO-SUP |
分类号 |
G01C3/08 |
主分类号 |
G01C3/08 |
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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