发明名称 |
Pixel array with global shutter |
摘要 |
<p>A pixel comprises a photo-sensitive element for generating charges in response to incident radiation and a sense node. A transfer gate is positioned between the photo-sensitive element and the sense node for controlling transfer of charges to the sense node. A reset switch is connected to the sense node for resetting the sense node to a predetermined voltage. A first buffer amplifier has an input connected to the sense node. A sample stage is connected to the output of the first buffer amplifier and is operable to sample a value of the sense node. A second buffer amplifier has an input connected to the sample stage. Control circuitry operates the reset switch and causes the sample stage to sample the sense node while the photo-sensitive element is being exposed to radiation. An array of pixels is synchronously exposed to radiation. Sampled values for a first exposure period can be read while the photo-sensitive element is exposed for a second exposure period.</p> |
申请公布号 |
EP2109306(B1) |
申请公布日期 |
2015.03.11 |
申请号 |
EP20090155902 |
申请日期 |
2009.03.23 |
申请人 |
CMOSIS NV |
发明人 |
MEYNANTS, GUY;BOGAERTS, JAN |
分类号 |
H04N5/217;H04N5/335;H04N5/353;H04N5/357;H04N5/363;H04N5/3745 |
主分类号 |
H04N5/217 |
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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