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：US06885397B1

公开(公告)日：2005-04-26

申请号：US09555517

申请日：1998-12-04

申请人： Thierry Ducourant

发明人： Thierry Ducourant

IPC分类号： G06T1/00 ,  G06T5/20 ,  H04N1/409 ,  H04N5/217 ,  H04N5/335 ,  H04N9/64

CPC分类号： G06T5/20

摘要： A process for correcting noise level of an image detector including photosensitive points arranged in rows and in columns. Within each row, the points are distributed into detector points and into corrector points. The detector points deliver a measurement value dependent on a luminous cue to which they are exposed. The corrector points deliver a dark value serving in the correction of the measurement values. Within at least one row, the detector points are distributed into at least two groups and the measurement values are corrected with a first or a second correction value depending on the group from which they originate. Such a process may find application to digitized-image detectors.

摘要翻译： 一种用于校正包括以列和列布置的感光点的图像检测器的噪声电平的处理。 在每一行中，点被分布到检测点和校正点。 检测器点提供取决于它们所暴露的发光提示的测量值。 校正点在校正测量值时提供一个暗值。 在至少一行内，检测点被分配到至少两个组中，并且根据它们起源的组利用第一或第二校正值校正测量值。 这样的处理可以应用于数字化图像检测器。

公开(公告)号：US06828563B2

公开(公告)日：2004-12-07

申请号：US10168522

申请日：2002-06-28

申请人： Thierry Ducourant

发明人： Thierry Ducourant

IPC分类号： G01T116

CPC分类号： H04N5/3655 ,  H04N5/32 ,  H04N5/361 ,  H04N5/374

摘要： A method for temperature compensation of sensitivity of an image including photosensitive spots each with a photodiode connected to read circuits. The photosensitive spots are divided into detecting photosensitive spots, detecting an image when exposed to information carrying the image and sensitive to this information, and into blind spots protected from the information. When the photosensitive spots are taken to a reference temperature, an average leakage current in the photodiodes of the blind photosensitive spots is calculated and a first average is generated from signals from the blind photosensitive spots during a read operation. When the photosensitive spots are taken to an ambient temperature to be determined, another average is generated from signals from the blind photosensitive spots during another read operation. The ambient temperature is calculated from the average leakage current and from the distance between the two averages. A gain image or a quasi gain image matched to the ambient temperature is generated. An image recorded at the ambient temperature with the gain image or the quasi gain image is then corrected. Such a method may find application to radiological image detectors in particular.

摘要翻译： 一种包括光敏点的图像的灵敏度的温度补偿方法，每个光敏点都连接到读取电路。 感光点被分为检测光敏点，当暴露于携带图像的信息并且对该信息敏感时检测图像，并且被保护成信息的盲点。 当光敏点被带到参考温度时，计算盲光敏点的光电二极管中的平均漏电流，并且在读操作期间从盲光感光点的信号产生第一平均值。 当感光点被摄取到要确定的环境温度时，在另一读取操作期间，来自盲光敏点的信号产生另一平均值。 环境温度根据平均泄漏电流和两个平均值之间的距离计算。 产生与环境温度匹配的增益图像或准增益图像。 然后校正在环境温度下用增益图像或准增益图像记录的图像。 这种方法尤其可以应用于放射图像检测器。

公开(公告)号：US5777495A

公开(公告)日：1998-07-07

申请号：US606842

申请日：1996-02-26

申请人： Marc Arques ,  Thierry Ducourant

发明人： Marc Arques ,  Thierry Ducourant

IPC分类号： H01L27/148 ,  G11C11/4094 ,  H01L21/339 ,  H01L29/762 ,  H03F3/00 ,  H03F3/70 ,  H04N5/335 ,  H03K17/00

CPC分类号： H03F3/005 ,  G11C11/4094 ,  H03F3/70

摘要： A device for copying a voltage (Ve) comprises a pair of series-connected MOS transistors, their sources forming a common point. The voltage (Ve) to be copied is applied between the gate of the first MOS transistor of the pair and a reference. Means are provided to inject a flux of electrons at a common point. A storage capacitor has a first terminal connected to the drain of the second MOS transistor and a second terminal designed to be biased. Means dictate a potential at the drain of the second MOS transistor and then let it vary so that the flux of electrons is stored in the storage capacitor while at the same time decreasing in the second MOS transistor to the benefit of the first one. The copied voltage Vs is available, after stabilization, between the first terminal of the storage capacitor and the reference. Application in particular to circuits for the reading of charges generated in a photosensitive matrix or photosensitive linear array.

摘要翻译： 用于复制电压（Ve）的装置包括一对串联MOS晶体管，它们的源形成公共点。 要复制的电压（Ve）被施加在该对的第一MOS晶体管的栅极和基准之间。 提供了在公共点注入电子束的装置。 存储电容器具有连接到第二MOS晶体管的漏极的第一端子和被设计为偏置的第二端子。 装置指示第二MOS晶体管的漏极处的电位，然后使其变化，使得电子通量存储在存储电容器中，同时在第二MOS晶体管中减小，从而有益于第一MOS晶体管。 在稳定之后，复制的电压Vs在存储电容器的第一端子和参考电压之间可用。 尤其适用于读取在感光矩阵或感光线性阵列中产生的电荷的电路。

公开(公告)号：US06737654B2

公开(公告)日：2004-05-18

申请号：US10149451

申请日：2002-06-27

申请人： Thierry Ducourant

发明人： Thierry Ducourant

IPC分类号： G01T124

CPC分类号： H04N5/361 ,  H04N5/3597 ,  H04N5/3655 ,  H04N5/374

摘要： A method and device for temperature compensation of an image detector including photosensitive spots sensitive to ambient temperature, each connected to a row conductor and a column conductor. The photosensitive spots are connected by their conductors to a read circuit. The photosensitive spots are divided into detecting photosensitive spots to be exposed to light information corresponding to the image to be detected, the read circuits associated with these photosensitive spots each delivering a measurement voltage representative of the image to be detected, and into blind photosensitive spots protected from the light information, the read circuits associated with these blind photosensitive spots each delivering a dark voltage serving for temperature compensation. During detection of an image the dark voltages are picked up, then an average correction value from the dark voltages coming from one or more detected images is generated, and the average correction value is used to generate a correction voltage to be applied, during detection of a subsequent image, to the read circuits associated with the detecting photosensitive spots so that they deliver a measurement voltage made substantially independent of temperature. Such a method and device may find application in particular to radiological image detectors.

摘要翻译： 一种用于图像检测器的温度补偿的方法和装置，包括对环境温度敏感的感光点，每个连接到行导体和列导体。 感光点通过其导体连接到读取电路。 感光点被分为检测光敏点，以暴露于与要检测的图像相对应的光信息，与这些感光点相关联的读取电路，每个传送表示待检测图像的测量电压，并且被保护成盲光敏点 根据光信息，与这些盲光感光点相关联的读取电路各自递送用于温度补偿的暗电压。 在检测图像期间，拾取暗电压，然后产生来自一个或多个检测到的图像的暗电压的平均校正值，并且在检测期间，使用平均校正值来产生要施加的校正电压 随后的图像传送到与检测光敏点相关联的读取电路，使得它们传送基本上与温度无关的测量电压。 这种方法和装置可以特别地应用于放射图像检测器。

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：US5115153A

公开(公告)日：1992-05-19

申请号：US367520

申请日：1989-06-16

申请人： Thierry Ducourant

发明人： Thierry Ducourant

IPC分类号： G01R19/165 ,  H03K3/356 ,  H03K5/08 ,  H03M1/34

CPC分类号： H03K3/356043

摘要： An integrated semiconductor circuit made up of a differential stage which comsists of a differential pair of field effect transistors (10, 11) having outputs (34, 35) which are coupled to the inputs of an output stage or sub-circuit (31, 32, 51, 52) for controlling same, and also including a load circuit (R.sub.4, R.sub.3). The circuit provides smoothing means for smoothing fluctuations of an output impedance of the differential transistor pair (10,11) during switching thereof.

摘要翻译： 一种由差分级组成的集成半导体电路，所述差分级具有耦合到输出级或子电路（31,32）的输入端的输出端（34,35）的差分对场效应晶体管（10,11） ，51,52），并且还包括负载电路（R4，R3）。 电路提供平滑装置，用于在其切换期间平滑差分晶体管对（10,11）的输出阻抗的波动。

公开(公告)号：US4757478A

公开(公告)日：1988-07-12

申请号：US940475

申请日：1986-12-10

申请人： Thierry Ducourant ,  Bertrand Gabillard

发明人： Thierry Ducourant ,  Bertrand Gabillard

IPC分类号： H03M7/00 ,  G11C8/10 ,  G11C11/418 ,  G11C8/00

CPC分类号： G11C8/10 ,  G11C11/418

摘要： An elementary decoder circuit for a monolithically integrated static random access memory is constructed by means of gallium arsenide field effect transistors and formed by a NOR-gate whose n inputs receive the n coded addressing signals a.sub.1, a.sub.2, . . . , a.sub.n of the memory, or their complements, and whose output supplied a signal which is applied to the upper transistor of a push-pull stage as well as a complementary signal, obttained via an inverter transistor, which is applied to the lower transistor of the push-pull stage. The junction point of the two transistors of the push-pull stage supplies the word line signal of the memory, and the two transistors of the push-pull stage are of the enhancement type, like the transistors of the NOR-gate, the output signal of the NOR-gate being applied to the input of the inverter transistor via a level shifting diode so that the biasing of the transistors of the push-pull stage results in an extremenly fast data transfer from the output of the NOR-gate to the word line.

摘要翻译： 用于单片集成静态随机存取存储器的基本解码器电路通过砷化镓场效应晶体管构成，并由n个输入端接收n个编码寻址信号a1，a2的NOR门形成。 。 。 ，存储器或其补码，并且其输出提供施加到推挽级的上晶体管的信号以及经由逆变器晶体管获得的互补信号，反相器晶体管被施加到下拉晶体管 推拉阶段。 推挽级的两个晶体管的连接点提供存储器的字线信号，并且推挽级的两个晶体管是增强型，像NOR栅极的晶体管，输出信号 通过电平移位二极管将或非门施加到逆变器晶体管的输入，使得推挽级的晶体管的偏置导致从NOR门的输出到字的极快的数据传输 线。

公开(公告)号：US4649293A

公开(公告)日：1987-03-10

申请号：US793607

申请日：1985-10-31

申请人： Thierry Ducourant

发明人： Thierry Ducourant

IPC分类号： G01R19/165 ,  H03K3/356 ,  H03K3/3562 ,  H03K5/08 ,  H03K12/00 ,  H03M1/34 ,  H03K5/153 ,  H03K5/24 ,  H03M1/36

CPC分类号： H03K3/356034 ,  H03K3/3562

摘要： A clocked comparator comprising a comparison stage, for comparing an analog input voltage V.sub.IN with an analog reference voltage V.sub.REF and for supplying. An intermediate signal V.sub.M and its complement V.sub.M, an amplifier stage amplifies the logic states of the intermediate signal. A first and a second latching stage are coupled to the comparison stage and the amplifier stage respectively, for generating and storing the logic states determined by the signals from the comparison stage and the amplifier stage. Each latching stage comprises a differential transistor pair having a common terminal connected to ground. A further differential transistor pair is arranged in parallel with the last-mentioned transistor pair and is controlled by a clock signal C for the first latching stage and by its complement C for the second latching stage. The comparison stage and the amplifier stage are also controlled by the clock signal C and the latching stages are each coupled to the comparison stage and the amplifier stage respectively by means of load resistors. Useful in a digital/analog converter equipped with enhancement-type gallium-arsenide field-effect transistors.

摘要翻译： 一种时钟比较器，包括比较级，用于将模拟输入电压VIN与模拟参考电压VREF进行比较并供给。 中间信号VM及其补码VM，放大器级放大中间信号的逻辑状态。 第一和第二锁存级分别耦合到比较级和放大器级，用于产生和存储由来自比较级和放大级的信号确定的逻辑状态。 每个锁存级包括具有连接到地的公共端的差分晶体管对。 进一步的差分晶体管对与最后提到的晶体管对并联布置，并由第一锁存级的时钟信号C和第二锁存级的补码和上升沿C控制。 比较级和放大级也由时钟信号C控制，并且锁存级分别通过负载电阻耦合到比较级和放大级。 适用于配备增强型砷化镓场效应晶体管的数字/模拟转换器。

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。