发明名称 |
Method and system to differentially enhance sensor dynamic range |
摘要 |
Effective differential dynamic range in a differential pixel detector is increased by avoiding saturation effects due to common mode contribution in optical energy to be detected. Photocurrent generated by each photodetector pair is directly integrated by an associated capacitor over an integration time T. Within time T, before either integrated capacitor voltage reaches V<SUB>sat </SUB>for the photodetector, at least one of the capacitors is reset to a voltage such that the desired differential detector signal is still determinable. Reset may be generated externally or internally to the differential pixel detector.
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申请公布号 |
US6919549(B2) |
申请公布日期 |
2005.07.19 |
申请号 |
US20040823415 |
申请日期 |
2004.04.12 |
申请人 |
CANESTA, INC. |
发明人 |
BAMJI CYRUS;YALCIN HAKAN;LIU XINQIAO;EROGLU ENDER TUNC |
分类号 |
G01C3/08;G01S7/481;G01S7/486;G01S7/491;G01S17/10;G01S17/48;H01J40/14;H01L27/00;H04N5/3745;(IPC1-7):H01L27/00 |
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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