公开(公告)号：US06980246B1

公开(公告)日：2005-12-27

申请号：US09926834

申请日：2000-06-27

申请人： Thierry Ducourant ,  Christophe Chaussat ,  Robert Neyret ,  Christophe Barnichon ,  Clément Atoyan ,  Paul Apard

发明人： Thierry Ducourant ,  Christophe Chaussat ,  Robert Neyret ,  Christophe Barnichon ,  Clément Atoyan ,  Paul Apard

IPC分类号： H04N5/30 ,  H04N5/365 ,  G01T1/24 ,  H01L27/00 ,  H04N5/228 ,  H04N5/335 ,  H05G1/64

CPC分类号： H04N5/325 ,  H04N5/32 ,  H04N5/3651

摘要： A process for controlling a photosensitive device including at least one photosensitive point with a photodiode connected to a switching element. The process submits the photosensitive point to successive imaging cycles. Between a first imaging cycle and a second imaging cycle, the process produces a holding phase terminating at the start of the second imaging cycle. During this holding phase, whose duration is equal to several equal time intervals that are as short as possible, the photosensitive point is exposed to an optical flash at the start of each time interval. Between successive optical flashes, the photodiode is reverse biased. The junction region between the photodiode and the switching element has substantially the same potential at the end of each time interval.

摘要翻译： 一种用于控制光敏器件的方法，该感光器件包括至少一个具有连接到开关元件的光电二极管的感光点。 该过程将光敏点提交到连续的成像周期。 在第一成像周期和第二成像周期之间，该过程产生在第二成像周期开始时终止的保持阶段。 在该保持期间，其持续时间等于尽可能短的几个相等的时间间隔，在每个时间间隔开始时，光敏点暴露于光学闪光。 在相继的闪光之间，光电二极管被反向偏置。 光电二极管与开关元件之间的结区域在每个时间间隔结束时具有基本上相同的电位。

公开(公告)号：US06410898B1

公开(公告)日：2002-06-25

申请号：US09198531

申请日：1998-11-24

申请人： Thierry Ducourant ,  Christophe Chaussat

发明人： Thierry Ducourant ,  Christophe Chaussat

IPC分类号： H01L2700

CPC分类号： H04N5/374 ,  H04N5/2351 ,  H04N5/32 ,  H04N5/351

摘要： A photosensitive device comprises: photosensitive cells located at the intersection of at least one addressing conductor and one read conductor, a cell comprising a photosensitive diode connected to a read conductor and to at least one diode having a switching function connected to an addressing conductor, these diodes having a common point; addressing means connected to at least one addressing conductor; charge-reading means connected to at least one read conductor. The device furthermore comprises first measurement means capable of the measurement, in real time, of an information element representing a current flowing in at least one addressing conductor, this conductor being taken to an idle potential during the illumination so as to be capable of quantifying the illumination received by the cells located on the conductor concerned by the measurement; and second measurement means capable of the measurement of an information element representing a current flowing, during the illumination, in at least one read conductor, this read conductor being taken, during the illumination, to a specific potential so as to be capable of quantifying the illumination received by the cells located on the conductor concerned by the measurement. Application especially to the detection of radiological images.

摘要翻译： 感光装置包括：位于至少一个寻址导体和一个读取导体的相交处的感光单元，包括连接到读取导体的光敏二极管的单元和连接到寻址导体的具有开关功能的至少一个二极管，这些 具有共同点的二极管; 连接到至少一个寻址导体的寻址装置; 电荷读取装置连接到至少一个读取导体。 该装置还包括能够实时地测量表示在至少一个寻址导体中流动的电流的信息元素的第一测量装置，该导体在照明期间被带到空闲电位，以便能够量化 由位于相关导体上的电池通过测量接收的照明; 以及第二测量装置，其能够测量表示在照明期间在至少一个读取导体中流动的电流的信息元件，该读取导体在照明期间被拍摄到特定电位，以便能够量化 位于相关导体上的电池通过测量接收的照明。 尤其适用于放射图像的检测。

公开(公告)号：US06686959B1

公开(公告)日：2004-02-03

申请号：US09367869

申请日：1999-09-03

申请人： Thierry Ducourant ,  Christophe Chaussat

发明人： Thierry Ducourant ,  Christophe Chaussat

IPC分类号： H04N5217

CPC分类号： H04N5/374 ,  H04N5/32 ,  H04N5/3597

摘要： A drive process for an array of photosensitive points produced on a semiconductor material. Each of the points has a photodiode connected in series with a switch element. The photodiode is reverse-biased and produces charges when it is exposed to a light signal during an imaging phase. Before the imaging phase, the photosensitive points are illuminated with an additional light flux whose intensity causes the photodiode to conduct in the forward direction and then in applying a biasing pulse to the photosensitive points in order to return the photodiode to reverse bias. Thus, a current is produced which has the effect of reducing a remanence effect in the semiconductor material.

摘要翻译： 用于在半导体材料上产生的感光点阵列的驱动方法。 每个点具有与开关元件串联的光电二极管。 光电二极管被反向偏置，并在成像阶段暴露于光信号时产生电荷。 在成像阶段之前，用附加的光束照射感光点，其强度使得光电二极管沿向前方向传导，然后向感光点施加偏置脉冲，以使光电二极管返回到反向偏压。 因此，产生具有降低半导体材料的剩磁效应的效果的电流。