发明名称 |
Circuit for reading adaptive preamplification charges and process for reading adaptive preamplification charges |
摘要 |
The invention relates to a circuit for reading charges comprising a capacitive means (C1, C2) with capacitance Ca to store charges and means of reading a voltage sampled at the terminals of the capacitive means. The capacitive means is built up from a first capacitive means (C1) and a second capacitive means (C2) with a capacitance Cb less than Ca. The read circuit comprises means of comparing the voltage read at the terminals of the capacitive means with a threshold value (Vthreshold) and means of controlling the transfer of charges stored in the first capacitive means to the second capacitive means when the voltage read at the terminals of the capacitive means exceeds the threshold value (Vthreshold). The invention is applicable to detection of radiation in the imagery field.
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申请公布号 |
US6603109(B2) |
申请公布日期 |
2003.08.05 |
申请号 |
US20010994622 |
申请日期 |
2001.11.28 |
申请人 |
COMMISSARIAT A L'ENERGIE ATOMIQUE |
发明人 |
PANTIGNY PHILIPPE;LAFLAQUIRE ARNAUD;ROTHAN FREDERIC |
分类号 |
H04N5/357;H04N5/374;(IPC1-7):H01J40/14 |
主分类号 |
H04N5/357 |
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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