发明名称 |
METHOD AND DEVICE FOR DETECTING THE TEMPORAL VARIATION OF THE LIGHT INTENSITY IN A MATRIX OF PHOTOSENSORS |
摘要 |
The invention relates to a method and a device for detecting the temporal variation of the light intensity in a matrix of photosensors, comprising a matrix of pixels, a block for the automatic adjustment of the amplification of the photocurrent, and an arbitrating and event-encoding block. Each pixel comprises a photosensor that generates a photocurrent, an adjustable gain current mirror connected to the outlet of the photosensor, a transimpedance amplifier arranged at the outlet of the current mirror, optionally at least one amplification circuit arranged at the outlet of the transimpedance amplifier, and capacitors and detectors of thresholds for determining whether the output voltage exceeds a higher threshold or drops below a lower threshold in order to generate an event in the pixel. |
申请公布号 |
EP2933995(B1) |
申请公布日期 |
2016.12.28 |
申请号 |
EP20130861843 |
申请日期 |
2013.11.12 |
申请人 |
Consejo Superior De Investigaciones Científicas (CSIC) |
发明人 |
SERRANO GOTARREDONA, Teresa;LINARES BARRANCO, Bernabé |
分类号 |
H04N5/243;H04N5/335;H04N5/3745 |
主分类号 |
H04N5/243 |
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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