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12 条记录 (耗时 0.013 秒)

    Reduced time constant charge pump and method for charging a capacitive load
    2.
    发明授权
    Reduced time constant charge pump and method for charging a capacitive load 有权
    减少时间常数电荷泵和充电电容负载的方法

    公开(公告)号：US07535281B2

    公开(公告)日：2009-05-19

    申请号：US11540857

    申请日：2006-09-29

    申请人： Espen Olsen

    发明人： Espen Olsen

    IPC分类号： G05F1/10 ,  G05F3/02

    CPC分类号： H02M3/07

    摘要： A charge pump and method converts an input voltage to a boosted voltage having a magnitude or polarity that is different from that of the input voltage. The input voltage is adjusted so that it has a relatively large magnitude until the boosted voltage approaches a target voltage. Therefore, the charge pump and method can more quickly charge a capacitive load. The magnitude of the input voltage may be proportional to the difference between the magnitude of a reference voltage and the magnitude of the boosted voltage. The magnitude of the input voltage may alternatively be substantially equal to the magnitude of a supply voltage until the magnitude of the boosted voltage is within a predetermined range of the target voltage, at which point it may be proportional to the difference between the magnitude of a reference voltage and the magnitude of the boosted voltage.

    摘要翻译： 电荷泵和方法将输入电压转换为具有不同于输入电压的幅度或极性的升压电压。 调整输入电压，使其具有相对较大的幅度，直到升压电压接近目标电压。 因此，电荷泵和方法可以更快速地对容性负载充电。 输入电压的大小可以与参考电压的幅度与升压电压的大小之间的差成比例。 输入电压的大小可以替代地基本上等于供电电压的幅度，直到升压电压的幅度在目标电压的预定范围内，此时它可能与 参考电压和升压电压的幅度。

    Readout technique for increasing or maintaining dynamic range in image sensors
    3.
    发明申请
    Readout technique for increasing or maintaining dynamic range in image sensors 有权

    公开(公告)号：US20070181779A1

    公开(公告)日：2007-08-09

    申请号：US11730877

    申请日：2007-04-04

    申请人： Espen Olsen ,  Jorgen Moholt

    发明人： Espen Olsen ,  Jorgen Moholt

    IPC分类号： H01L27/00

    CPC分类号： H04N5/243 ,  H04N5/378

    摘要： The apparatus and method provide a readout technique and circuit for increasing or maintaining dynamic range of an image sensor. The readout technique and circuit process each pixel individually based on the magnitude of the readout signal. The circuit includes a gain amplifier amplifying the readout analog signal, a level detection circuit for determining the signal's magnitude, a second gain amplifier applying a gain based on the signal magnitude and an analog-to-digital converter digitizing the signal and a circuit for multiplying or dividing the signal. The method and circuit allow for a lower signal-to-noise ratio while increasing the dynamic range of the imager.

    Readout technique for increasing or maintaining dynamic range in image sensors
    4.
    发明申请
    Readout technique for increasing or maintaining dynamic range in image sensors 有权
    用于增加或维持图像传感器动态范围的读出技术

    公开(公告)号：US20060214085A1

    公开(公告)日：2006-09-28

    申请号：US11088964

    申请日：2005-03-24

    申请人： Espen Olsen ,  Jorgen Moholt

    发明人： Espen Olsen ,  Jorgen Moholt

    IPC分类号： H01L27/00

    CPC分类号： H04N5/243 ,  H04N5/378

    摘要： The apparatus and method provide a readout technique and circuit for increasing or maintaining dynamic range of an image sensor. The readout technique and circuit process each pixel individually based on the magnitude of the readout signal. The circuit includes a gain amplifier amplifying the readout analog signal, a level detection circuit for determining the signal's magnitude, a second gain amplifier applying a gain based on the signal magnitude and an analog-to-digital converter digitizing the signal and a circuit for multiplying or dividing the signal. The method and circuit allow for a lower signal-to-noise ratio while increasing the dynamic range of the imager.

    摘要翻译： 该装置和方法提供了用于增加或保持图像传感器的动态范围的读出技术和电路。 读出技术和电路根据读出信号的大小分别对每个像素进行处理。 该电路包括放大读出的模拟信号的增益放大器，用于确定信号幅度的电平检测电路，基于信号幅度施加增益的第二增益放大器和对信号进行数字化的模数转换器和用于乘法的电路 或划分信号。 该方法和电路允许较低的信噪比同时增加成像器的动态范围。

    Anti-eclipse circuitry with tracking of floating diffusion reset level
    8.
    发明申请
    Anti-eclipse circuitry with tracking of floating diffusion reset level 有权

    公开(公告)号：US20060227226A1

    公开(公告)日：2006-10-12

    申请号：US11100429

    申请日：2005-04-07

    申请人： Espen Olsen

    发明人： Espen Olsen

    IPC分类号： H04N5/217

    CPC分类号： H04N5/3598 ,  H04N5/361 ,  H04N5/3653 ,  H04N5/3742

    摘要： An anti-eclipse circuit for an imager is formed from pixel circuitry over the same semiconductor substrate as the imaging pixels. More specifically, two adjacent pixel circuits are modified to form an amplifier. One input of the amplifier is adapted to receive a reset signal from one of the pixel circuits while another input is adapted to be set at a predetermined offset voltage from the output of the amplifier. The amplifier is preferably a unity gain amplifier, so that the output of the amplifier set to a voltage level equal to the predetermined offset from the voltage level of the reset signal. Accordingly, the anti-eclipse circuit outputs a reference voltage at predetermined level from the reset voltage of a pixel and does not need to be calibrated for fabrication related variances in reset voltages.

    Real-time exposure control for automatic light control
    9.
    发明申请
    Real-time exposure control for automatic light control 有权
    实时曝光控制，实现自动光控

    公开(公告)号：US20050253944A1

    公开(公告)日：2005-11-17

    申请号：US10846513

    申请日：2004-05-17

    申请人： Alf Olsen ,  Espen Olsen ,  Jorgen Moholt ,  Steinar Iversen

    发明人： Alf Olsen ,  Espen Olsen ,  Jorgen Moholt ,  Steinar Iversen

    IPC分类号： G03B7/00 ,  H04N3/14 ,  H04N5/235 ,  H04N5/353 ,  H04N5/374 ,  H04N5/335

    CPC分类号： H04N5/2352 ,  H04N5/2353 ,  H04N5/2354 ,  H04N5/243

    摘要： An imager and a method for real-time, non-destructive monitoring of light incident on imager pixels during their exposure to light. Real-time or present pixel signals, which are indicative of present illumination on the pixels, are compared to a reference signal during the exposure. Adjustments, if necessary, are made to programmable parameters such as gain and/or exposure time to automatically control the imager's exposure to the light. In a preferred exemplary embodiment, only a selected number of pixels are monitored for exposure control as opposed to monitoring the entire pixel array.

    摘要翻译： 一种成像器和一种在曝光时对成像器像素入射的光进行实时，无损检测的方法。 在曝光期间将表示像素上的当前照明的实时或呈现像素信号与参考信号进行比较。 如有必要，可以对可编程参数（如增益和/或曝光时间）进行调整，以自动控制成像仪对光的曝光。 在优选示例性实施例中，与监视整个像素阵列相比，仅监视选定数量的像素以进行曝光控制。

    Low headroom line driver
    10.
    发明授权
    Low headroom line driver 有权
    低净空线路驱动器

    公开(公告)号：US08638130B1

    公开(公告)日：2014-01-28

    申请号：US13029957

    申请日：2011-02-17

    申请人： Espen Olsen

    发明人： Espen Olsen

    IPC分类号： H03B1/00

    CPC分类号： G11C7/1057 ,  G11C7/1084

    摘要： Low headroom line driver circuits are disclosed. In several embodiments, the line driver circuits include a first transistor, a second transistor, a third transistor and a fourth transistor, where the first transistor and second transistors; and the third and fourth transistors are matched, first and second matched impedances, first and second driver controls circuit configured to apply control signals to the gates of the first and second transistors; and the third and fourth transistors respectively. In addition, the first and third transistors; and the second and fourth transistors are configured as a pair of stacked transistors connected between the voltage supplies Vdd and Vss, the second and fourth transistors are configured as a pair of stacked transistors connected between the voltage supplies Vdd and Vss, the matched impedances are connected in series between nodes formed by the connection between the first and third transistors; and the second and fourth transistors.

    摘要翻译： 公开了低余量线驱动电路。 在几个实施例中，线路驱动器电路包括第一晶体管，第二晶体管，第三晶体管和第四晶体管，其中第一晶体管和第二晶体管; 并且第三和第四晶体管是匹配的第一和第二匹配阻抗，第一和第二驱动器控制电路被配置为向第一和第二晶体管的栅极施加控制信号; 以及第三和第四晶体管。 另外，第一和第三晶体管; 并且第二和第四晶体管被配置为连接在电压源Vdd和Vss之间的一对堆叠晶体管，第二和第四晶体管被配置为连接在电压源Vdd和Vss之间的一对堆叠晶体管，匹配的阻抗被连接 在由第一和第三晶体管之间的连接形成的节点之间串联; 以及第二和第四晶体管。