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    Active pixel sensor having intra-pixel charge transfer with analog-to-digital converter
    1.
    发明授权
    Active pixel sensor having intra-pixel charge transfer with analog-to-digital converter 失效
    有源像素传感器具有模数转换器的像素内电荷转移

    公开(公告)号：US06665013B1

    公开(公告)日：2003-12-16

    申请号：US09305346

    申请日：1999-05-03

    申请人： Eric R. Fossum ,  Sunetra K. Mendis ,  Bedabrata Pain ,  Robert H. Nixon ,  Zhimin Zhou

    发明人： Eric R. Fossum ,  Sunetra K. Mendis ,  Bedabrata Pain ,  Robert H. Nixon ,  Zhimin Zhou

    IPC分类号： H04N314

    CPC分类号： H04N5/378 ,  G11C19/282 ,  G11C19/285 ,  H01L27/14645 ,  H01L27/14843 ,  H01L27/1485 ,  H01L27/14887 ,  H01L31/02162 ,  H01L31/0232 ,  H04N5/3575 ,  H04N5/363 ,  H04N5/374 ,  H04N9/045

    摘要： An imaging device formed as a monolithic complementary metal oxide semiconductor integrated circuit in an industry standard complementary metal oxide semiconductor process, the integrated circuit including a focal plane array of pixel cells, each one of the cells including a photogate overlying the substrate for accumulating photo-generated charge in an underlying portion of the substrate, a readout circuit including at least an output field effect transistor formed in the substrate, and a charge coupled device section formed on the substrate adjacent the photogate having a sensing node connected to the output transistor and at least one charge coupled device stage for transferring charge from the underlying portion of the substrate to the sensing node and an analog-to-digital converter formed in the substrate connected to the output of the readout circuit.

    摘要翻译： 一种在工业标准互补金属氧化物半导体工艺中形成为单片互补金属氧化物半导体集成电路的成像装置，该集成电路包括像素单元的焦平面阵列，每个单元包括覆盖基板的光栅， 在衬底的底层部分产生的电荷，至少包括形成在衬底中的输出场效应晶体管的读出电路和形成在邻近光栅的衬底上的电荷耦合器件部分，其具有连接到输出晶体管的感测节点， 至少一个电荷耦合器件级，用于将电荷从衬底的下面部分传输到感测节点;以及模拟数字转换器，其形成在连接到读出电路的输出端的衬底中。

    Integrated sensor with frame memory and programmable resolution for light adaptive imaging
    2.
    发明授权
    Integrated sensor with frame memory and programmable resolution for light adaptive imaging 有权
    具有帧存储器的集成传感器和可自适应成像的可编程分辨率

    公开(公告)号：US06787749B1

    公开(公告)日：2004-09-07

    申请号：US09512145

    申请日：2000-02-23

    申请人： Zhimin Zhou ,  Eric R. Fossum ,  Bedabrata Pain

    发明人： Zhimin Zhou ,  Eric R. Fossum ,  Bedabrata Pain

    IPC分类号： H01L2700

    CPC分类号： G11C27/04 ,  H04N5/347 ,  H04N5/3658

    摘要： An image sensor operable to vary the output spatial resolution according to a received light level while maintaining a desired signal-to-noise ratio. Signals from neighboring pixels in a pixel patch with an adjustable size are added to increase both the image brightness and signal-to-noise ratio. One embodiment comprises a sensor array for receiving input signals, a frame memory array for temporarily storing a full frame, and an array of self-calibration column integrators for uniform column-parallel signal summation. The column integrators are capable of substantially canceling fixed pattern noise.

    摘要翻译： 一种图像传感器，其可操作以根据接收的光电平改变输出空间分辨率，同时保持期望的信噪比。 添加具有可调整尺寸的像素补丁中的相邻像素的信号以增加图像亮度和信噪比。 一个实施例包括用于接收输入信号的传感器阵列，用于临时存储全帧的帧存储器阵列，以及用于统一的列并行信号求和的自校准列积分器的阵列。 列积分器能够基本上消除固定模式噪声。

    Integrated sensor with frame memory and programmable resolution for light adaptive imaging
    3.
    发明授权
    Integrated sensor with frame memory and programmable resolution for light adaptive imaging 失效
    具有帧存储器和可编程分辨率的集成传感器，用于光自适应成像

    公开(公告)号：US5909026A

    公开(公告)日：1999-06-01

    申请号：US867835

    申请日：1997-06-03

    申请人： Zhimin Zhou ,  Eric R. Fossum ,  Bedabrata Pain

    发明人： Zhimin Zhou ,  Eric R. Fossum ,  Bedabrata Pain

    IPC分类号： G11C27/04 ,  H04N5/347 ,  H04N5/365 ,  H04N5/369 ,  H04N5/374 ,  H01J40/14

    CPC分类号： H04N5/347 ,  G11C27/04 ,  H04N5/3743

    摘要： An image sensor operable to vary the output spatial resolution according to a received light level while maintaining a desired signal-to-noise ratio. Signals from neighboring pixels in a pixel patch with an adjustable size are added to increase both the image brightness and signal-to-noise ratio. One embodiment comprises a sensor array for receiving input signals, a frame memory array for temporarily storing a full frame, and an array of self-calibration column integrators for uniform column-parallel signal summation. The column integrators are capable of substantially canceling fixed pattern noise.

    摘要翻译： 一种图像传感器，其可操作以根据接收的光电平改变输出空间分辨率，同时保持期望的信噪比。 添加具有可调整尺寸的像素补丁中的相邻像素的信号以增加图像亮度和信噪比。 一个实施例包括用于接收输入信号的传感器阵列，用于临时存储全帧的帧存储器阵列，以及用于统一的列并行信号求和的自校准列积分器的阵列。 列积分器能够基本上消除固定模式噪声。

    Capacitively coupled successive approximation ultra low power analog-to-digital converter
    4.
    发明授权
    Capacitively coupled successive approximation ultra low power analog-to-digital converter 失效
    电容耦合逐次逼近超低功耗模数转换器

    公开(公告)号：US5880691A

    公开(公告)日：1999-03-09

    申请号：US744957

    申请日：1996-11-07

    申请人： Eric R. Fossum ,  Zhimin Zhou ,  Bedabrata Pain

    发明人： Eric R. Fossum ,  Zhimin Zhou ,  Bedabrata Pain

    IPC分类号： H03M1/06 ,  H03M1/46 ,  H03M1/80 ,  H03M1/38

    CPC分类号： H03M1/0682 ,  H03M1/466 ,  H03M1/804

    摘要： A capacitively-coupled successive approximation analog-to-digital converter utilizes a capacitively coupled multiplying digital to analog converter to generate a succession of voltages which are compared to the input voltage to be digitized. The capacitively coupled multiplying digital to analog converter generates the required succession of analog voltage levels utilizing very low power in response to digital signals. A double-sided version of the invention processes differential inputs with improved common-non-ideality mode rejection.

    摘要翻译： 电容耦合逐次逼近模数转换器利用电容耦合的乘法数模转换器来产生与待数字化的输入电压相比较的一系列电压。 电容耦合乘法数模转换器利用响应于数字信号的非常低的功率产生所需的连续的模拟电压电平。 本发明的双面版本处理具有改进的共非理想模式拒绝的差分输入。

    CMOS integration sensor with fully differential column readout circuit for light adaptive imaging
    5.
    发明授权
    CMOS integration sensor with fully differential column readout circuit for light adaptive imaging 有权
    CMOS集成传感器，具有全色差列读出电路，适用于光自适应成像

    公开(公告)号：US06801258B1

    公开(公告)日：2004-10-05

    申请号：US09268879

    申请日：1999-03-16

    申请人： Bedabrata Pain ,  Zhimin Zhou ,  Eric R. Fossum

    发明人： Bedabrata Pain ,  Zhimin Zhou ,  Eric R. Fossum

    IPC分类号： H04N5335

    CPC分类号： H04N5/374 ,  H04N5/3575

    摘要： An imager that is better suited for low-light detection capability. In accordance with a preferred embodiment, the imager may be easily configured to provide an imager having multi-resolution capability where SNR can be adjusted for optimum low-level detectibility. Multi-resolution signal processing functionality is provided on-chip to achieve high speed imaging, as well as low power consumption. The imager architecture employs an improved pixel binning approach with fully differential circuits situated so that all extraneous and pick-up noise is eliminated. The current implementation requires no frame transfer memory, thereby reducing chip size. The reduction in area enables larger area format light adaptive imager implementations.

    摘要翻译： 更适合低光检测能力的成像仪。 根据优选实施例，成像器可以容易地配置成提供具有多分辨率能力的成像器，其中可以调整SNR以获得最佳的低级可检测性。 片上提供多分辨率信号处理功能，以实现高速成像以及低功耗。 成像器架构采用改进的像素分类方法，具有完全差分电路，从而消除了所有的无关和拾取噪声。 目前的实现不需要帧传输存储器，从而减少芯片尺寸。 减少面积使得能够实现更大面积的光自适应成像器实现。

    Successive approximation analog-to-digital converter using balanced charge integrating amplifiers
    7.
    发明授权
    Successive approximation analog-to-digital converter using balanced charge integrating amplifiers 失效
    使用平衡电荷积分放大器的逐次近似模数转换器

    公开(公告)号：US5793322A

    公开(公告)日：1998-08-11

    申请号：US744955

    申请日：1996-11-07

    申请人： Eric R. Fossum ,  Zhimin Zhou ,  Bedabrata Pain

    发明人： Eric R. Fossum ,  Zhimin Zhou ,  Bedabrata Pain

    IPC分类号： H03M1/38 ,  H03M1/40 ,  H04N5/378

    CPC分类号： H04N3/155 ,  H03M1/403

    摘要： An analog-to-digital converter for on-chip focal-plane image sensor applications. The analog-to-digital converter utilizes charge integrating amplifiers in a charge balancing architecture to implement successive approximation analog-to-digital conversion. This design requires minimal chip area and has high speed and low power dissipation for operation in the 2-10 bit range. The invention is particularly well suited to CMOS on-chip applications requiring many analog-to-digital converters, such as column-parallel focal-plane architectures.

    摘要翻译： 用于片上焦平面图像传感器应用的模拟 - 数字转换器。 模数转换器利用电荷平衡架构中的电荷积分放大器实现逐次逼近模数转换。 该设计需要最小的芯片面积，具有高速度和低功耗，可在2-10位范围内工作。 本发明特别适用于需要许多模数转换器的CMOS片上应用，例如列平行焦平面架构。

    Integrated sensor with frame memory and programmable resolution for light adaptive imaging
    9.
    发明授权
    Integrated sensor with frame memory and programmable resolution for light adaptive imaging 有权
    具有帧存储器和可编程分辨率的集成传感器，用于光自适应成像

    公开(公告)号：US6057539A

    公开(公告)日：2000-05-02

    申请号：US323556

    申请日：1999-06-01

    申请人： Zhimim Zhou ,  Eric R. Fossum ,  Bedabrata Pain

    发明人： Zhimim Zhou ,  Eric R. Fossum ,  Bedabrata Pain

    IPC分类号： G11C27/04 ,  H04N5/347 ,  H04N5/365 ,  H04N5/369 ,  H04N5/374 ,  H01J40/14

    CPC分类号： H04N5/347 ,  G11C27/04 ,  H04N5/3743

    摘要： An image sensor operable to vary the output spatial resolution according to a received light level while maintaining a desired signal-to-noise ratio. Signals from neighboring pixels in a pixe patch with an adjustable size are added to increase both the image brightness and signal-to-noise ratio. One embodiment comprises a sensor array for receiving input signals, a frame memory array for temporarily storing a full frame, and an array of self-calibration column integrators for uniform column-parallel signal summation. The column integrators are capable of substantially canceling fixed pattern noise.

    摘要翻译： 一种图像传感器，其可操作以根据接收的光电平改变输出空间分辨率，同时保持期望的信噪比。 增加了具有可调大小的像素补片中相邻像素的信号，以增加图像亮度和信噪比。 一个实施例包括用于接收输入信号的传感器阵列，用于临时存储全帧的帧存储器阵列，以及用于统一的列并行信号求和的自校准列积分器的阵列。 列积分器能够基本上消除固定模式噪声。