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    Methods and apparatus for in-pixel filtering in focal plane arrays including apparatus and method for counting pulses representing an analog signal
    2.
    发明授权
    Methods and apparatus for in-pixel filtering in focal plane arrays including apparatus and method for counting pulses representing an analog signal 有权
    包括用于计数表示模拟信号的脉冲的装置和方法的焦平面阵列中的像素内滤波的方法和装置

    公开(公告)号：US09159446B2

    公开(公告)日：2015-10-13

    申请号：US14073338

    申请日：2013-11-06

    申请人： Kenneth I. Schultz ,  Brian Tyrrell ,  Michael W. Kelly ,  Curtis Colonero ,  Lawrence M. Candell ,  Daniel Mooney

    发明人： Kenneth I. Schultz ,  Brian Tyrrell ,  Michael W. Kelly ,  Curtis Colonero ,  Lawrence M. Candell ,  Daniel Mooney

    IPC分类号： H01J40/14 ,  G11C19/00 ,  H03M1/00 ,  H03M1/12 ,  H03M1/60 ,  H03K21/02 ,  H03K23/54

    CPC分类号： H03K21/023 ,  G11C19/00 ,  H03K23/548 ,  H03M1/001 ,  H03M1/004 ,  H03M1/123 ,  H03M1/60

    摘要： Digital focal plane arrays (DFPAs) with multiple counters per unit cell can be used to convert analog signals to digital data and to filter the digital data. Exemplary DFPAs include two-dimensional arrays of unit cells, where each unit cell is coupled to a corresponding photodetector in a photodetector array. Each unit cell converts photocurrent from its photodetector to a digital pulse train that is coupled to multiple counters in the unit cell. Each counter in each unit cell can be independently controlled to filter the pulse train by counting up or down and/or by transferring data as desired. For example, a unit cell may perform in-phase/quadrature filtering of homodyne- or heterodyne-detected photocurrent with two counters: a first counter toggled between increment and decrement modes with an in-phase signal and a second counter toggled between increment and decrement modes with a quadrature signal.

    摘要翻译： 每单位单元具有多个计数器的数字焦平面阵列（DFPA）可用于将模拟信号转换为数字数据并对数字数据进行滤波。 示例性的DFPA包括单位单元的二维阵列，其中每个单位单元耦合到光电检测器阵列中的对应的光电检测器。 每个单元电池将来自其光电检测器的光电流转换成耦合到单元电池中的多个计数器的数字脉冲串。 可以独立地控制每个单位单元中的每个计数器，以通过向上或向下计数和/或通过根据需要传送数据来对脉冲序列进行滤波。 例如，单元可以使用两个计数器来执行与差分检波和外差检测的光电流的同相/正交滤波：在增量和减量模式之间切换的第一计数器，其中同相信号和在增量和减量之间切换的第二计数器 具有正交信号的模式。

    Methods and apparatus for in-pixel filtering in focal plane arrays
    3.
    发明授权
    Methods and apparatus for in-pixel filtering in focal plane arrays 有权
    焦平面阵列中像素内滤波的方法和装置

    公开(公告)号：US08605853B2

    公开(公告)日：2013-12-10

    申请号：US13228367

    申请日：2011-09-08

    申请人： Kenneth I. Schultz ,  Brian Tyrrell ,  Michael W. Kelly ,  Curtis Colonero ,  Lawrence M. Candell ,  Daniel Mooney

    发明人： Kenneth I. Schultz ,  Brian Tyrrell ,  Michael W. Kelly ,  Curtis Colonero ,  Lawrence M. Candell ,  Daniel Mooney

    IPC分类号： H03K23/00

    CPC分类号： H03K21/023 ,  G11C19/00 ,  H03K23/548 ,  H03M1/001 ,  H03M1/004 ,  H03M1/123 ,  H03M1/60

    摘要： Digital focal plane arrays (DFPAs) with multiple counters per unit cell can be used to convert analog signals to digital data and to filter the digital data. Exemplary DFPAs include two-dimensional arrays of unit cells, where each unit cell is coupled to a corresponding photodetector in a photodetector array. Each unit cell converts photocurrent from its photodetector to a digital pulse train that is coupled to multiple counters in the unit cell. Each counter in each unit cell can be independently controlled to filter the pulse train by counting up or down and/or by transferring data as desired. For example, a unit cell may perform in-phase/quadrature filtering of homodyne- or heterodyne-detected photocurrent with two counters: a first counter toggled between increment and decrement modes with an in-phase signal and a second counter toggled between increment and decrement modes with a quadrature signal.

    摘要翻译： 每单位单元具有多个计数器的数字焦平面阵列（DFPA）可用于将模拟信号转换为数字数据并对数字数据进行滤波。 示例性的DFPA包括单位单元的二维阵列，其中每个单位单元耦合到光电检测器阵列中的对应的光电检测器。 每个单元电池将来自其光电检测器的光电流转换成耦合到单元电池中的多个计数器的数字脉冲串。 可以独立地控制每个单位单元中的每个计数器，以通过向上或向下计数和/或通过根据需要传送数据来对脉冲序列进行滤波。 例如，单元可以使用两个计数器来执行与差分检波和外差检测的光电流的同相/正交滤波：在增量和递减模式之间切换的第一计数器，其中同相信号和在增量和减量之间切换的第二计数器 具有正交信号的模式。