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    System, Apparatus, and Method for Resonator and Coriolis Axis Control in Vibratory Gyroscopes
    1.
    发明申请
    System, Apparatus, and Method for Resonator and Coriolis Axis Control in Vibratory Gyroscopes 有权
    振动陀螺仪中谐振器和科里奥利轴控制的系统，仪器和方法

    公开(公告)号：US20160298965A1

    公开(公告)日：2016-10-13

    申请号：US14680776

    申请日：2015-04-07

    Applicant: Analog Devices, Inc.

    Inventor： Ronald Alan Kapusta

    IPC: G01C19/5712

    CPC classification number: G01C19/5712 ,  G01C19/5719

    Abstract: A gyroscope control circuit for a vibratory gyroscope system includes an open-loop RSP control circuit and a closed-loop CSP control circuit. The gyroscope control circuit optionally may include a Q compensation circuit to compensate for variations in gyroscope sensitivity due to variations in resonator signal path Q. The resonator signal path and the Coriolis signal path may have transduction factors that are proportional to each other such that sensitivity of the gyroscope varies directly with resonator signal path quality factor (Q).

    Abstract translation: 用于振动陀螺仪系统的陀螺仪控制电路包括开环RSP控制电路和闭环CSP控制电路。 可选地，陀螺仪控制电路可以包括Q补偿电路，以补偿由于谐振器信号路径Q的变化引起的陀螺仪灵敏度的变化。谐振器信号路径和科里奥利信号路径可以具有彼此成比例的传导因子， 陀螺仪与谐振器信号路径品质因数（Q）直接相关。

    SAR ADCS WITH DEDICATED REFERENCE CAPACITOR FOR EACH BIT CAPACITOR
    3.
    发明申请
    SAR ADCS WITH DEDICATED REFERENCE CAPACITOR FOR EACH BIT CAPACITOR 审中-公开
    具有专用参考电容器的SAR ADCS，用于每个位电容器

    公开(公告)号：US20160182078A1

    公开(公告)日：2016-06-23

    申请号：US14949423

    申请日：2015-11-23

    Applicant: ANALOG DEVICES, INC.

    Inventor： JUNHUA SHEN ,  Mark D. Maddox ,  Ronald Alan Kapusta

    IPC: H03M1/46 ,  H03M1/00

    CPC classification number: H03M1/468 ,  H03M1/002 ,  H03M1/08 ,  H03M1/462

    Abstract: A successive approximation register analog-to-digital converter (SAR ADC) typically includes circuitry for implementing bit trials that converts an analog input to a digital output bit by bit. The circuitry for bit trials are usually weighted (e.g., binary weighted), and these bit weights are not always ideal. Calibration algorithms can calibrate or correct for non-ideal bit weights and usually prefer these bit weights to be signal independent so that the bit weights can be measured and calibrated/corrected easily. Embodiments disclosed herein relate to a unique circuit design of an SAR ADC, where each bit capacitor or pair of bit capacitors (in a differential design) has a corresponding dedicated on-chip reference capacitor. The speed of the resulting ADC is fast due to the on-chip reference capacitors (offering fast reference settling times), while errors associated with non-ideal bit weights of the SAR ADC are signal independent (can be easily measured and corrected/calibrated).

    Abstract translation: 逐次逼近寄存器模拟 - 数字转换器（SAR ADC）通常包括用于实现将模拟输入逐位转换为数字输出的位测试的电路。 用于比特测试的电路通常是加权（例如，二进制加权），并且这些比特权重并不总是理想的。 校准算法可校准或校正非理想比特权重，并且通常将这些比特权重优先于信号无关，以便可以容易地测量和校准/校正比特权重。 本文公开的实施例涉及SAR ADC的独特电​​路设计，其中每个位电容器或一对位电容器（在差分设计中）具有相应的专用片上参考电容器。 由于片上参考电容（提供快速参考建立时间），所得ADC的速度很快，而与SAR ADC的非理想位权重有关的错误与信号无关（可以轻松测量和校正/校准） 。

    SAR ADCs with dedicated reference capacitor for each bit capacitor
    4.
    发明授权
    SAR ADCs with dedicated reference capacitor for each bit capacitor 有权

    公开(公告)号：US10205462B2

    公开(公告)日：2019-02-12

    申请号：US14949423

    申请日：2015-11-23

    Applicant: ANALOG DEVICES, INC.

    Inventor： Junhua Shen ,  Mark D. Maddox ,  Ronald Alan Kapusta

    IPC: H03M1/12 ,  H03M1/46 ,  H03M1/08 ,  H03M1/00

    Abstract: A successive approximation register analog-to-digital converter (SAR ADC) typically includes circuitry for implementing bit trials that converts an analog input to a digital output bit by bit. The circuitry for bit trials are usually weighted (e.g., binary weighted), and these bit weights are not always ideal. Calibration algorithms can calibrate or correct for non-ideal bit weights and usually prefer these bit weights to be signal independent so that the bit weights can be measured and calibrated/corrected easily. Embodiments disclosed herein relate to a unique circuit design of an SAR ADC, where each bit capacitor or pair of bit capacitors (in a differential design) has a corresponding dedicated on-chip reference capacitor. The speed of the resulting ADC is fast due to the on-chip reference capacitors (offering fast reference settling times), while errors associated with non-ideal bit weights of the SAR ADC are signal independent (can be easily measured and corrected/calibrated).

    Quality Factor Estimation for Resonators
    6.
    发明申请
    Quality Factor Estimation for Resonators 审中-公开
    谐振器质量因子估计

    公开(公告)号：US20160298963A1

    公开(公告)日：2016-10-13

    申请号：US15092943

    申请日：2016-04-07

    Applicant: Analog Devices, Inc.

    Inventor： Ronald Alan Kapusta ,  Jiefeng Yan ,  James Lin

    IPC: G01C19/56 ,  G01C25/00

    CPC classification number: G01C19/5776

    Abstract: Various embodiments provide methods of determining the quality factor of a resonating body in ways that are advantageous over previously known methods. For example, embodiments allow the determination of the quality factors of a resonating body without preventing the simultaneous use of the resonating body. For micromachined (“MEMS”) devices, embodiments allow the determination of the quality factors of a resonating body in a manner that is not dependent on transduction parameters of the MEMS device.

    Abstract translation: 各种实施例提供了以相对于先前已知的方法有利的方式来确定谐振体的质量因子的方法。 例如，实施例允许确定谐振体的质量因子而不阻止共振体的同时使用。 对于微加工（“MEMS”）器件，实施例允许以不依赖于MEMS器件的转导参数的方式来确定谐振体的质量因子。

    ADAPTIVE GAIN ADJUSTMENT IN AN IMAGING SYSTEM
    7.
    发明申请
    ADAPTIVE GAIN ADJUSTMENT IN AN IMAGING SYSTEM 有权
    成像系统中的自适应增益调整

    公开(公告)号：US20150373277A1

    公开(公告)日：2015-12-24

    申请号：US14310872

    申请日：2014-06-20

    Applicant: Analog Devices, Inc.

    Inventor： Daniel Peter Canniff ,  Ronald Alan Kapusta

    IPC: H04N5/243 ,  H04N5/378 ,  H04N5/355 ,  H04N5/235

    CPC classification number: H04N5/243 ,  H04N5/2355 ,  H04N5/355 ,  H04N5/378

    Abstract: Systems for processing pixel signals generated by an image sensor to create improved images. More particularly, systems and methods are disclosed that adjust the gain on, inter alia, a pixel-by-pixel basis, to improve the dynamic range of the imaging system. The systems may include level detectors that measure the amplitude of a pixel signal and, based on that measurement, amplify that pixel signal by an amount that allows certain subsequent processing of the pixel signal to be more accurate. More accurately processed pixel signals can provide better overall images.

    Abstract translation: 用于处理由图像传感器产生的像素信号以产生改进的图像的系统。 更具体地，公开了系统和方法，其特别是以逐个像素为基础来调整增益，以改善成像系统的动态范围。 系统可以包括测量像素信号幅度的电平检测器，并且基于该测量，将该像素信号放大一定量，该量允许像素信号的某些后续处理更准确。 更准确地处理的像素信号可以提供更好的整体图像。

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