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1. 发明授权

US06493030B1 Low-noise active pixel sensor for imaging arrays with global reset 失效
标题翻译：用于具有全局复位的成像阵列的低噪声有源像素传感器
公开(公告)号：US06493030B1
公开(公告)日：2002-12-10
申请号：US09057202
申请日：1998-04-08
申请人： Lester J. Kozlowski , David L. Standley
发明人： Lester J. Kozlowski , David L. Standley
IPC分类号： H04N314
CPC分类号： H03F3/082 , H01L27/14609 , H03F2200/372 , H04N5/363 , H04N5/3745
摘要： An imaging array of active pixel sensors uses a reset amplifier in each pixel in a four transistor CMOS implementation. The reset amplifier acts as a variable resistance in the source-follower amplifier feedback circuit. The variable resistance is controlled by a range reset voltage applied to the reset amplifier thereby nulling the photodiode reset noise. The ramp reset voltage is applied to all reset amplifiers of all pixels at the same time, thereby providing for reset of the entire array at the same time, i.e., global reset.
摘要翻译：有源像素传感器的成像阵列在四晶体管CMOS实现中在每个像素中使用复位放大器。复位放大器作为源极跟随放大器反馈电路中的可变电阻。可变电阻由施加到复位放大器的范围复位电压控制，从而使光电二极管复位噪声为零。斜坡复位电压同时施加到所有像素的所有复位放大器，从而同时提供整个阵列的复位，即全局复位。

2. 发明授权

US06697111B1 Compact low-noise active pixel sensor with progressive row reset 失效
标题翻译：紧凑型低噪声有源像素传感器，具有渐进行重置
公开(公告)号：US06697111B1
公开(公告)日：2004-02-24
申请号：US09057423
申请日：1998-04-08
申请人： Lester J. Kozlowski , David L. Standley
发明人： Lester J. Kozlowski , David L. Standley
IPC分类号： H04N5335
CPC分类号： H04N5/3745 , H04N5/363
摘要： An imaging array of active pixel sensors uses a compact three transistor CMOS implementation for each pixel. A current source at the top of each column creates a distributed feedback amplifier for each pixel in a selected row. The reset amplifier acts as a variable resistance in the source-follower amplifier feedback circuit. The variable resistance is controlled by a range reset voltage applied to the reset amplifier thereby nulling the photodiode reset noise.
摘要翻译：有源像素传感器的成像阵列对于每个像素使用紧凑的三晶体管CMOS实现。每列顶部的电流源为选定行中的每个像素创建一个分布式反馈放大器。复位放大器作为源极跟随放大器反馈电路中的可变电阻。可变电阻由施加到复位放大器的范围复位电压控制，从而使光电二极管复位噪声为零。

3. 发明授权

US06535247B1 Active pixel sensor with capacitorless correlated double sampling 失效
标题翻译：有源像素传感器，无电容相关双采样
公开(公告)号：US06535247B1
公开(公告)日：2003-03-18
申请号：US09081541
申请日：1998-05-19
申请人： Lester J. Kozlowski , David L. Standley
发明人： Lester J. Kozlowski , David L. Standley
IPC分类号： H04N5217
CPC分类号： H04N5/363 , H04N5/3745
摘要： An imager pixel including a photodetector, a first MOS transistor functioning as the driver of a source follower amplifier, a second MOS transistor functioning as a pixel readout transistor, and a third transistor performing a dual function to reset the photodetector during a first time interval and cancel reset noise by serving as a weak current source during a second time interval.
摘要翻译：包括光电检测器，用作源极跟随器放大器的驱动器的第一MOS晶体管，用作像素读出晶体管的第二MOS晶体管和执行双功能以在第一时间间隔内复位光电探测器的第三晶体管的成像器像素，以及通过在第二时间间隔期间作为弱电流源来取消复位噪声。

4. 发明授权

US06532040B1 Low-noise active-pixel sensor for imaging arrays with high speed row reset 有权
标题翻译：用于高速行复位的成像阵列的低噪声有源像素传感器
公开(公告)号：US06532040B1
公开(公告)日：2003-03-11
申请号：US09149937
申请日：1998-09-09
申请人： Lester J. Kozlowski , David L. Standley
发明人： Lester J. Kozlowski , David L. Standley
IPC分类号： H04N5217
CPC分类号： H03F3/087 , H04N5/363 , H04N5/37452 , H04N5/378
摘要： An imager pixel including a photodetector, a first MOS transistor functioning as the driver of a source follower amplifier during signal readout, a second MOS transistor serving as a pixel readout transistor, a third MOS transistor serving as a photodetector reset transistor, and a reset noise cancellation circuit including a fourth MOS transistor, first and second capacitances, and an amplifier having a gain which is the inverse of the ratio of the first to the second capacitance.
摘要翻译：包括光电检测器，用作信号读出期间的源极跟随放大器的驱动器的第一MOS晶体管，用作像素读出晶体管的第二MOS晶体管，用作光电检测器复位晶体管的第三MOS晶体管和复位噪声消除电路，包括第四MOS晶体管，第一和第二电容，以及具有与第一和第二电容的比率相反的增益的放大器。

5. 发明授权

US06809767B1 Low-noise CMOS active pixel sensor for imaging arrays with high speed global or row reset 有权
标题翻译：低噪声CMOS有源像素传感器，用于高速全局或行重置的阵列
公开(公告)号：US06809767B1
公开(公告)日：2004-10-26
申请号：US09268913
申请日：1999-03-16
申请人： Lester J. Kozlowski , David L. Standley
发明人： Lester J. Kozlowski , David L. Standley
IPC分类号： H04N314
CPC分类号： H01L27/14609
摘要： An active-pixel low-noise imaging system for implementation in CMOS or in other semiconductor fabrication technologies uses three transistors and a single capacitance per pixel. The first transistor serves as a reset and a transimpedance amplifier to facilitate high impedance and suppress reset noise without requiring expensive on-chip or off-chip memory. The second transistor is an access MOSFET used to read the signal from each pixel and multiplex the signal outputs from an array of pixels. The third MOSFET resets the detector after the integrated signal has been read. Since the detector sense node is “pinned” by the feedback amplifier, reset noise is reduced to that generated by the much smaller feedback capacitance. In addition, by using a small but well-defined feedback capacitor, an amplifier with a narrow bandwidth can be used, provided its unity-gain frequency is sufficient. Since the pixel-base amplifier's output capacitance is far smaller than the bus capacitance, the total energy consumed during reset is very small and overall power consumption is kept at a level consistent with battery-powered operation.
摘要翻译：用于在CMOS或其他半导体制造技术中实现的有源像素低噪声成像系统使用三个晶体管和每像素一个电容。第一晶体管用作复位和跨阻放大器，以便于高阻抗和抑制复位噪声，而不需要昂贵的片上或片外存储器。第二晶体管是用于从每个像素读取信号并对来自像素阵列的信号输出进行复用的访问MOSFET。集成信号读取后，第三个MOSFET复位检测器。由于检测器感测节点被反馈放大器“固定”，所以复位噪声降低到由较小的反馈电容产生的噪声。另外，通过使用小而良好的反馈电容器，可以使用具有窄带宽的放大器，只要其单位增益频率足够。由于像素基放大器的输出电容远远小于总线电容，因此复位期间消耗的总能量非常小，总体功耗保持在与电池供电操作一致的水平。

6. 发明授权

US06587142B1 Low-noise active-pixel sensor for imaging arrays with high speed row reset 有权
标题翻译：用于高速行复位的成像阵列的低噪声有源像素传感器
公开(公告)号：US06587142B1
公开(公告)日：2003-07-01
申请号：US09164923
申请日：1998-10-01
申请人： Lester J. Kozlowski , David L. Standley
发明人： Lester J. Kozlowski , David L. Standley
IPC分类号： H04N5217
CPC分类号： H04N5/37452 , H03F3/087 , H04N5/363 , H04N5/378
摘要： An active pixel sensor circuit including a photodetector, a first MOS transistor functioning as the driver of a source follower amplifier during signal readout, a second MOS transistor serving as a pixel readout transistor, a third MOS transistor serving as a photodetector reset transistor, and a reset noise cancellation circuit including a fourth MOS transistor, first and second capacitances, and an amplifier having a gain which is a specified multiple of the ratio of the first to the second capacitance. The first capacitance is connected in parallel to the photodector. The amplifier reduces the reset noise caused by resetting the photodector without having to implement correlated double sampling.
摘要翻译：一种有源像素传感器电路，包括光电检测器，用作信号读出期间的源极跟随放大器的驱动器的第一MOS晶体管，用作像素读出晶体管的第二MOS晶体管，用作光电检测器复位晶体管的第三MOS晶体管和包括第四MOS晶体管，第一和第二电容的复位噪声消除电路和具有作为第一和第二电容的比率的指定倍数的增益的放大器。第一电容与光电二极管并联连接。该放大器减少了由复位光电二极管引起的复位噪声，而无需执行相关的双采样。

7. 发明授权

US08063964B2 Dual sensitivity image sensor 有权
标题翻译：双灵敏度图像传感器
公开(公告)号：US08063964B2
公开(公告)日：2011-11-22
申请号：US11986238
申请日：2007-11-20
申请人： Lester J. Kozlowski
发明人： Lester J. Kozlowski
IPC分类号： H04N3/14 , H04N5/335
CPC分类号： H04N5/378 , H01L27/14643 , H04N5/23245 , H04N5/3575 , H04N5/363 , H04N5/3742
摘要： A dual sensitivity image sensor provides a standard mode and a high-sensitivity mode of operation via iSoC integration. In addition to boosting sensitivity, the high sensitivity mode also reduces temporal noise thereby optimally boosting the Signal-to-Noise Ratio (SNR) of the image sensor. The circuit does not significantly increase pixel complexity and requires minimal changes to the support circuits in the iSoC including the addition of support and control circuitry to facilitate seamless mode change.
摘要翻译：双灵敏度图像传感器通过iSoC集成提供标准模式和高灵敏度操作模式。除了提高灵敏度之外，高灵敏度模式还减少了时间噪音，从而最大限度地提高了图像传感器的信噪比（SNR）。该电路不会显着增加像素复杂性，并且需要对iSoC中的支持电路进行最小的更改，包括添加支持和控制电路以促进无缝模式更改。

8. 发明授权

US07768569B2 High sensitivity color filter array 有权
标题翻译：高灵敏度滤色片阵列
公开(公告)号：US07768569B2
公开(公告)日：2010-08-03
申请号：US11505728
申请日：2006-08-17
申请人： Lester J. Kozlowski
发明人： Lester J. Kozlowski
IPC分类号： H04N5/225
CPC分类号： H04N9/045 , H01L27/14621 , H04N5/335
摘要： A color filter array (CFA) and image processing system wherein a color filter overlaying an image sensor has a luminance element (i.e. green filter in RGB space, or yellow in CMY space) that is made larger than the other two chrominance elements (i.e. red, blue or cyan, magenta). Additionally, overlaying micro-lenses may be sized to correspond to the relative sizes of the underlying color filters. The optimized filter array is compatible with existing de-mosaic image processing.
摘要翻译：一种滤色器阵列（CFA）和图像处理系统，其中覆盖图像传感器的滤色器具有比另外两个色度元素大的亮度元素（即RGB空间中的绿色滤光器或CMY空间中的黄色）（即，红色，蓝色或青色，品红色）。另外，覆盖的微透镜的尺寸可以相应于底层滤色器的相对尺寸。优化的滤波器阵列与现有的去马赛克图像处理兼容。

9. 发明申请

US20090128677A1 Dual sensitivity image sensor 有权
标题翻译：双灵敏度图像传感器
公开(公告)号：US20090128677A1
公开(公告)日：2009-05-21
申请号：US11986238
申请日：2007-11-20
申请人： Lester J. Kozlowski
发明人： Lester J. Kozlowski
IPC分类号： H04N5/335
CPC分类号： H04N5/378 , H01L27/14643 , H04N5/23245 , H04N5/3575 , H04N5/363 , H04N5/3742
摘要： A dual sensitivity image sensor provides a standard mode and a high-sensitivity mode of operation via iSoC integration. In addition to boosting sensitivity, the high sensitivity mode also reduces temporal noise thereby optimally boosting the Signal-to-Noise Ratio (SNR) of the image sensor. The circuit does not significantly increase pixel complexity and requires minimal changes to the support circuits in the iSoC including the addition of support and control circuitry to facilitate seamless mode change.
摘要翻译：双灵敏度图像传感器通过iSoC集成提供标准模式和高灵敏度操作模式。除了提高灵敏度之外，高灵敏度模式还减少了时间噪音，从而最大限度地提高了图像传感器的信噪比（SNR）。该电路不会显着增加像素复杂性，并且需要对iSoC中的支持电路进行最小的更改，包括添加支持和控制电路以促进无缝模式更改。

10. 发明授权

US06504141B1 Adaptive amplifier circuit with enhanced dynamic range 失效
标题翻译：具有增强动态范围的自适应放大器电路
公开(公告)号：US06504141B1
公开(公告)日：2003-01-07
申请号：US09675483
申请日：2000-09-29
申请人： Lester J. Kozlowski , William E. Tennant
发明人： Lester J. Kozlowski , William E. Tennant
IPC分类号： G02B2100
CPC分类号： H04N5/365 , H01L27/1465 , H04N5/361
摘要： An adaptive amplifier circuit with minimal excess noise and a linear charge-handling capacity exceeding 109 electrons to enable high-quality imaging at long wavelength infrared backgrounds and video frame rates with enhanced dynamic range is disclosed. An integration capacitor stores a charge produced from a photodetector. An adaptive skimming circuit skims off excess charge during integration of the charge on the integration capacitor. A switched-capacitor low pass filter provides enhanced dynamic range.
摘要翻译：公开了一种具有最小过剩噪声和超过109个电子的线性电荷处理能力的自适应放大器电路，以实现在长波长红外背景下的高质量成像和具有增强的动态范围的视频帧速率。积分电容器存储从光电检测器产生的电荷。在集成电容器上的电荷积分期间，自适应偏移电路清除过剩电荷。开关电容低通滤波器提供增强的动态范围。

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