发明名称 |
Photodetector having a photosensitive region and two-dimensional pixel arrangement |
摘要 |
First integrating circuits 110 convert electric currents from one group of photosensitive portions electrically connected to each other in a plurality of pixels arranged in a first direction into voltages, and output the voltages. First S/H circuits 130 hold and output the voltages outputted from the first integrating circuits 110 . A first maximum value detecting circuit 140 detects the maximum value of the voltages outputted from the first S/H circuits 130 . First level shift circuits 170 shift levels of the voltages outputted from the first S/H circuits 130 . A first A/D converter circuit 180 sets a range from the maximum value detected by the first maximum value detecting circuit 140 to a value smaller than the maximum value by a predetermined value as an A/D conversion range, and converts the voltages outputted from the first S/H circuits 130 into digital values within the A/D conversion range.
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申请公布号 |
US7329851(B2) |
申请公布日期 |
2008.02.12 |
申请号 |
US20040542854 |
申请日期 |
2004.01.16 |
申请人 |
HAMAMATSU PHOTONICS K.K. |
发明人 |
SUGIYAMA YUKINOBU;MIZUNO SEIICHIRO |
分类号 |
H01L31/00;G01B11/00;G06F3/00;G06F3/01;G06F3/033;G06F3/042;H01L27/146;H04N5/369 |
主分类号 |
H01L31/00 |
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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