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    • 4. 发明申请
    • CMOS IMAGER WITH WIDE DYNAMIC RANGE PIXEL
    • 具有宽动态范围像素的CMOS成像器
    • WO2007016320A3
    • 2007-09-20
    • PCT/US2006029352
    • 2006-07-28
    • IMAGERLABS INCNETER SARITATLAS EUGENEJOHNSON KIM LOREN
    • NETER SARITATLAS EUGENEJOHNSON KIM LOREN
    • H01L29/74
    • H01L27/14609H04N5/3559H04N5/3597H04N5/37452
    • A light sensor is provided in the active pixel sensor cell for sensing incident radiation. The voltage corresponding to a photon-generated charge in the cell is stored on a storage node via a sample-and-hold capacitor. The signal is read via a readout source-follower (RSF) transistor. The RSF drain is connected to the row select switch while its drain is connected to the output node on the column output bus. This configuration couples the storage node to the gate-source capacitance of the RSF transistor, allowing the voltage on the storage node to increase proportionally to the increase in voltage on the readout node when the row select is closed and enabling the drain current to flow through the RSF to the column output bus.
    • 在有源像素传感器单元中提供用于感测入射辐射的光传感器。 与单元中的光子产生的电荷对应的电压经由采样保持电容器被存储在存储节点上。 信号通过读出源极跟随器(RSF)晶体管读取。 RSF漏极连接到行选择开关,漏极连接到列输出总线上的输出节点。 该配置将存储节点耦合到RSF晶体管的栅极 - 源极电容,从而允许存储节点上的电压与行选择关闭时的读出节点上的电压的增加成比例地增加,并使漏极电流流过 RSF到列输出总线。
    • 6. 发明申请
    • ADJUSTABLE CMOS SENSOR ARRAY
    • 可调CMOS传感器阵列
    • WO2011078999A1
    • 2011-06-30
    • PCT/US2010/060588
    • 2010-12-15
    • IMAGERLABS INC.NETER, SaritATLAS, Eugene
    • NETER, SaritATLAS, Eugene
    • H04N1/04
    • H04N5/3559H04N5/3696H04N5/37452
    • In one aspect, the present invention provides an active pixel sensor array with optimized matching between pixels and strength and frequency of incoming signals such as photons absorbed. The array comprises multiple pixels of individual geometry corresponds to spatial location. Each pixel full-well is adjustable via modifiable pixel conversion gain while maintaining pixel linearity. Furthermore each pixel internally stores multiple of extremely high frequency samples. Variable pixel geometry per row is very advantageous for Echelle spectrograph, where pixel heights are aligned with the spectrograph "order separator" where the resolution changes. In combination with variable geometry, externally adjustable full-well provides for superior spectral line separation in spectroscopy applications. In one embodiment multiple time windows with intermittent resets are stored within each pixel. This feature allows for the detection of extreme high frequency consecutive events without saturation such as may be the case with LIBS (Laser Induced Breakdown Spectroscopy).
    • 在一个方面,本发明提供一种有源像素传感器阵列,其具有像素之间的优化匹配,以及诸如所吸收的光子之类的输入信号的强度和频率。 该阵列包括单个几何的多个像素对应于空间位置。 每个像素全阱可通过可修改的像素转换增益进行调整,同时保持像素线性度。 此外,每个像素内部存储极高频率样本的多个。 对于Echelle光谱仪,每行可变像素几何非常有利,其中像素高度与分辨率改变的光谱仪“分光器”对齐。 结合可变几何结构,外部可调式全孔可在光谱应用中提供卓越的光谱线分离。 在一个实施例中,具有间歇复位的多个时间窗口被存储在每个像素内。 该特征允许检测没有饱和的极端高频连续事件,例如可能是LIBS(激光诱导击穿光谱)的情况。
    • 7. 发明申请
    • ULTRA LOW NOISE CMOS IMAGER
    • 超低噪声CMOS图像
    • WO2008108884A1
    • 2008-09-12
    • PCT/US2007/079441
    • 2007-09-25
    • IMAGERLABS, INC.ATLAS, EugeneNETER, SaritJOHNSON, Kim Loren
    • ATLAS, EugeneNETER, SaritJOHNSON, Kim Loren
    • H04N5/30
    • H04N5/365H04N5/3575H04N5/363H04N5/378
    • A column buffer for use with a pixel cell array includes an amplifier coupled to three read-out circuits in parallel providing a signal corresponding to accumulated photon-generated charge in a pixel cell plus noise, a reset level plus noise, and a pedestal level, respectively. These three signals are used to generate an ultra-low noise signal Di = Si - Pi-1 - G*(Ri - Ri-1), wherein S is the sampled signal, P is the pedestal level, R is the reset level, and G is a gain associated with a pixel cell, and wherein i is a frame number greater than 0. The three signals can be read-out simultaneously. In another embodiment, the three signals are obtained from a column buffer having only one output. In this case, the signals are read-out sequentially.
    • 与像素单元阵列一起使用的列缓冲器包括并联的三个读出电路的放大器,提供对应于像素单元中的积累的光子产生的电荷加噪声,复位电平加噪声和基准电平的信号, 分别。 这三个信号用于产生超低噪声信号Di = Si-Pi-1 -G *(Ri-Ri-1),其中S是采样信号,P是基准电平,R是复位电平, 并且G是与像素单元相关联的增益,并且其中i是大于0的帧数。可以同时读出三个信号。 在另一个实施例中,三个信号从仅具有一个输出的列缓冲器获得。 在这种情况下,依次读出信号。