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1.发明授权Imaging system and method for increasing the dynamic range of an array of active pixel sensor cells 有权用于增加有源像素传感器单元阵列的动态范围的成像系统和方法
公开(公告)号：US6018365A
公开(公告)日：2000-01-25
申请号：US263405
申请日：1999-03-05
IPC分类号： H01L27/146 , H04N3/14
CPC分类号： H04N3/155 , H01L27/14609
摘要： The dynamic range of an imaging system that utilizes an array of active pixel sensor cells is substantially increased by reading each cell in the array multiple times during each integration period. Each time a cell is read, the number of photons collected by the cell is saved and the cell is reset if the cell would normally saturate by the end of the integration period. At the end of the integration period, the number of photons collected by each cell is defined by the sum of the values collected during the integration period.
摘要翻译： 利用有源像素传感器单元阵列的成像系统的动态范围通过在每个积分周期期间多次读取阵列中的每个单元而大大增加。 每次读取单元时，单元格收集的光子数量将被保存，并且如果单元格在积分周期结束时正常饱和，单元格将被复位。 在积分期结束时，每个细胞收集的光子数由积分期间收集的值之和定义。
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2.发明授权
公开(公告)号：US5970316A
公开(公告)日：1999-10-19
申请号：US161191
申请日：1998-09-25
IPC分类号： H01L27/146 , H01L31/103 , H01L21/76
CPC分类号： H01L31/103 , H01L27/14603 , H01L27/14609 , H01L27/1463
摘要： Isolation between the heavily-doped active regions of an active pixel sensor cell is provided by utilizing a series of isolation regions which have a doping concentration that is approximately equal to the doping concentration of a low-density drain (LDD) region. A first isolation region of the series, which has the same conductivity type as the active regions, is formed to adjoin a first active region. A second isolation region of the series, which has the opposite conductivity type as the active regions, is formed to adjoin the first isolation region. A third isolation region, which has the same conductivity type as the active regions, is formed to adjoin the second isolation region and a second active region.
摘要翻译： 通过利用具有近似等于低密度漏极（LDD）区域的掺杂浓度的掺杂浓度的一系列隔离区来提供有源像素传感器单元的重掺杂有源区之间的隔离。 形成具有与有源区相同的导电类型的该系列的第一隔离区，以邻接第一有源区。 形成具有与有源区相反的导电类型的该系列的第二隔离区，以邻接第一隔离区。 形成具有与有源区相同的导电类型的第三隔离区，以邻接第二隔离区和第二有源区。
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3.发明授权Active pixel image cell with embedded memory and pixel level signal processing capability 失效有源像素图像单元具有嵌入式存储器和像素级信号处理能力
公开(公告)号：US5962844A
公开(公告)日：1999-10-05
申请号：US923370
申请日：1997-09-03
IPC分类号： H01L27/146 , H04N5/3745 , H04N5/378 , H01L27/148 , H04N5/335
CPC分类号： H04N3/155 , H01L27/14609
摘要： An active pixel image cell which includes a photosensor and an embedded memory element and may be used to produce signals corresponding to the photosensor outputs for successive frames. The structure of the active pixel cell includes an analog, non-volatile, or dynamic memory element and the control elements needed to store the output of the photosensor generated during a previous frame. The pixel elements then generate a signal representing the current frame output of the photosensor. The current frame output and previous frame output are then provided as output signals for the pixel and may be subjected to off-pixel processing as desired. For example, the two values may be subtracted from one another by an off-pixel difference amplifier to form a signal representing the difference between the image on the photodiode sensor of the pixel between successive frames. The difference signal may then be used for purposes of video compression, motion detection, or image stabilization.
摘要翻译： 一种有源像素图像单元，其包括光电传感器和嵌入式存储元件，并且可用于产生对应于用于连续帧的光电传感器输出的信号。 有源像素单元的结构包括模拟，非易失性或动态存储器元件以及存储在先前帧期间产生的光电传感器的输出所需的控制元件。 然后，像素元件产生表示光电传感器的当前帧输出的信号。 然后将当前帧输出和先前帧输出提供为像素的输出信号，并且可以根据需要进行离像像素处理。 例如，两个值可以由离像素差分放大器彼此减去以形成表示连续帧之间的像素的光电二极管传感器上的图像之间的差的信号。 然后差分信号可以用于视频压缩，运动检测或图像稳定的目的。
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4.发明授权
公开(公告)号：US5892253A
公开(公告)日：1999-04-06
申请号：US824451
申请日：1997-03-26
IPC分类号： H01L27/146 , H01L31/062 , H01L31/113
CPC分类号： H01L27/14609
摘要： In an active pixel sensor cell, the blue response of the cell is balanced by utilizing a photodiode in lieu of a photogate, and the noise is reduced by quickly reading the voltage on a node, transferring the collected charge from the photodiode onto the node, and then again reading the voltage on the node.
摘要翻译： 在有源像素传感器单元中，通过利用光电二极管代替光栅平衡单元的蓝色响应，并且通过快速读取节点上的电压并将收集的电荷从光电二极管传送到节点上而降低噪声， 然后再次读取节点上的电压。
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5.发明授权Active pixel sensor cell that reduces noise in the photo information extracted from the cell 失效有源像素传感器单元，其减少从单元提取的照片信息中的噪声
公开(公告)号：US5880460A
公开(公告)日：1999-03-09
申请号：US871519
申请日：1997-06-09
CPC分类号： H04N5/3577 , H04N3/155 , H04N3/1568
摘要： The noise in the photo information output from a CMOS-based active pixel sensor cell is reduced by setting the voltage on the output of the cell to a predetermined voltage, such as ground or the power supply voltage, each time the cell is read prior to the cell being read.
摘要翻译： 通过将单元的输出上的电压设置为预定电压（例如接地或电源电压），每次在单元读取之前，通过将基于CMOS的有源像素传感器单元输出的照片信息中的噪声降低 正在读取单元格。
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6.发明授权Active pixel sensor cell that utilizes a parasitic transistor to reset the photodiode of the cell 失效有源像素传感器单元利用寄生晶体管复位电池的光电二极管
公开(公告)号：US5710446A
公开(公告)日：1998-01-20
申请号：US647687
申请日：1996-05-13
IPC分类号： G11C13/00 , H01L27/148 , H01L29/768 , H04N3/14
CPC分类号： H01L27/14612 , H01L27/14643
摘要： The amount of silicon real estate consumed by a photodiode-based active pixel sensor cell is reduced by utilizing a parasitic transistor to reset the voltage on the photodiode in lieu of the conventional use of a reset transistor. The parasitic transistor is formed by forming a doped region a distance apart from the well region of the photodiode, which defines a parasitic channel region therebetween, and a reset gate over the parasitic channel region.
摘要翻译： 通过利用寄生晶体管来代替常规使用复位晶体管来减少光电二极管上的电压来减少由基于光电二极管的有源像素传感器单元消耗的硅空间的量。 寄生晶体管通过形成与光电二极管的阱区隔一定距离的掺杂区域形成，其间限定了寄生沟道区域，以及在寄生沟道区域上的复位栅极。
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公开(公告)号：US06180983B2
公开(公告)日：2001-01-30
申请号：US09118460
申请日：1998-07-17
IPC分类号： H01L2701
CPC分类号： H01L29/78696 , H01L27/1203 , H01L29/78624
摘要： High-voltage n-channel and p-channel MOS transistors are formed on an insulated wafer, such as a silicon-on-insulator wafer. The heavily-doped area of the drain region is separated from the channel region by a lighter-doped area of the drain region which has a lateral width which is substantially greater than the lateral width of the sidewall spacers formed adjacent to the gates of the spacers.
摘要翻译： 在绝缘晶片上形成高压n沟道和p沟道MOS晶体管，例如绝缘体上硅晶片。 漏极区域的重掺杂区域通过漏极区域的较轻掺杂区域与沟道区域分离，该区域的横向宽度基本上大于邻近隔板形成的侧壁间隔物的横向宽度 。
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公开(公告)号：US6150683A
公开(公告)日：2000-11-21
申请号：US883677
申请日：1997-06-27
IPC分类号： H01L27/146 , H01L31/0352 , H01L31/103 , H01L31/062 , H01L31/113
CPC分类号： H01L27/14645 , H01L31/03529 , H01L31/103 , Y02E10/50
摘要： The blue signal of a CMOS-based color pixel is increased with respect to the red and green signals by lowering the doping concentration of the surface regions of the pn-junction photodiodes that are used in the blue imaging cells with respect to the surface regions of the pn-junction photodiodes that are used in the red and green imaging cells.
摘要翻译： 通过降低蓝色成像单元中使用的pn结光电二极管的表面区域的掺杂浓度，相对于红色和绿色信号的表面区域，基于CMOS的彩色像素的蓝色信号相对于红色和绿色信号增加 在红色和绿色成像单元中使用的pn结光电二极管。
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公开(公告)号：US6011295A
公开(公告)日：2000-01-04
申请号：US898062
申请日：1997-07-22
CPC分类号： G06N3/0635
摘要： An active pixel image cell which includes a photosensor, active devices for control of the sensor and readout of a signal representing the intensity of light to which the sensor is exposed, and a neuron MOSFET transistor which "both amplifies the signal from the photosensor and" simulates the behavior of a human neuron. An integrated neural network and imaging array may be formed by interconnecting a group of such pixels. Digital signal processing algorithms used for image processing may be implemented at the pixel level by appropriate interconnections between the output signals from the photosensor of surrounding pixels and the neuron MOSFET.
摘要翻译： 包括光传感器的有源像素图像单元，用于控制传感器的有源器件和表示传感器所暴露的光的强度的信号的读出，以及“两者都放大来自光电传感器的信号”的神经元晶体管， 模拟人类神经元的行为。 可以通过将一组这样的像素互连来形成集成神经网络和成像阵列。 用于图像处理的数字信号处理算法可以通过来自周围像素的光电传感器的输出信号和神经元MOSFET之间的适当互连在像素级上实现。
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公开(公告)号：US5841176A
公开(公告)日：1998-11-24
申请号：US850604
申请日：1997-05-02
IPC分类号： H01L27/146 , H01L31/103 , H01L31/0352 , H01L31/09
CPC分类号： H01L31/103 , H01L27/14603 , H01L27/14609 , H01L27/1463
摘要： Isolation between the heavily-doped active regions of an active pixel sensor cell is provided by utilizing a series of isolation regions which have a doping concentration that is approximately equal to the doping concentration of a low-density drain (LDD) region. A first isolation region of the series, which has the same conductivity type as the active regions, is formed to adjoin a first active region. A second isolation region of the series, which has the opposite conductivity type as the active regions, is formed to adjoin the first isolation region. A third isolation region, which has the same conductivity type as the active regions, is formed to adjoin the second isolation region and a second active region.
摘要翻译： 通过利用具有近似等于低密度漏极（LDD）区域的掺杂浓度的掺杂浓度的一系列隔离区来提供有源像素传感器单元的重掺杂有源区之间的隔离。 形成具有与有源区相同的导电类型的该系列的第一隔离区，以邻接第一有源区。 形成具有与有源区相反的导电类型的该系列的第二隔离区，以邻接第一隔离区。 形成具有与有源区相同的导电类型的第三隔离区，以邻接第二隔离区和第二有源区。
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