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    • 3. 发明授权
    • Very high speed photodetector system using a PIN photodiode array for position sensing
    • 使用PIN光电二极管阵列进行位置检测的超高速光电探测器系统
    • US06831263B2
    • 2004-12-14
    • US10163204
    • 2002-06-04
    • David SkurnikRandall Brian SpragueGeoffrey Hugh JonesEric Charles AbbottWaisiu Law
    • David SkurnikRandall Brian SpragueGeoffrey Hugh JonesEric Charles AbbottWaisiu Law
    • G01J142
    • H01L27/1446H01L21/823807H01L21/823878H01L27/0922H01L29/045H01L29/7843H01L29/7846
    • An apparatus for detecting a centroid of a spot produced by electromagnetic radiation, e.g., optic radiation, using an array of PIN photodiodes serving as photodetectors and being organized in columns and in rows. Vertical connections are used to interconnect the PIN photodiodes in the columns in accordance with a first pattern that interconnects two or more adjacent columns. Horizontal connections are used to interconnect PIN photodiodes in the rows in accordance with a second pattern that interconnects two or more adjacent rows. The first and second patterns of interconnections can include just two adjacent columns and two adjacent rows, respectively and form a checkerboard interconnect pattern. The interconnections are made such that there are no anode connections between the PIN photodiodes in the rows and columns. The apparatus has a processing circuitry for rapidly deriving an X-extent of the centroid from current signals obtained from the columns and a Y-extent of the centroid from current signals obtained from the rows.
    • 用于使用用作光电检测器的PIN光电二极管阵列并以列和行组织的方式来检测由电磁辐射(例如光学辐射)产生的光点的质心的装置。 垂直连接用于根据互连两个或多个相邻列的第一图案来互连列中的PIN光电二极管。 水平连接用于根据互连两个或多个相邻行的第二图案来互连行中的PIN光电二极管。 第一和第二互连图案可以分别仅包括两个相邻的列和两个相邻的行,并且形成棋盘互连图案。 进行互连使得行和列之间的PIN光电二极管之间没有阳极连接。 该装置具有处理电路,用于从根据从行获得的电流信号从当前信号和质心的Y范围快速得出质心的X范围。
    • 4. 发明授权
    • Double layer photodiodes in ambient light sensors and proximity detectors
    • 环境光传感器和接近检测器中的双层光电二极管
    • US08269172B2
    • 2012-09-18
    • US12889335
    • 2010-09-23
    • David Skurnik
    • David Skurnik
    • G01J5/02
    • H01L27/14645G01J1/0488G01J1/4204G01J1/4228H01L27/14621H01L31/02019H01L31/02162H01L31/103
    • Embodiments of the present invention provide systems, devices and methods for detecting both ambient light and proximity to an object. This detection is performed by a double-layered photodiode array and corresponding circuitry such that ambient light and proximity detection are enabled by a plurality of integrated photodiodes. In various embodiments of the invention, ambient light is sensed using a first set of photodiodes and a second set of photodiodes such that a spectral response is created that is approximately equal to the visible light spectrum. Proximity detection is realized using an integrated photodiode, positioned below the first and second sets of photodiodes, that detects infrared light and generates a response thereto.
    • 本发明的实施例提供用于检测环境光和物体接近度的系统,装置和方法。 该检测由双层光电二极管阵列和相应的电路执行,使得环境光和接近检测由多个集成光电二极管实现。 在本发明的各种实施例中,使用第一组光电二极管和第二组光电二极管感测环境光,使得产生近似等于可见光光谱的光谱响应。 使用位于第一和第二组光电二极管下方的集成光电二极管实现接近检测,其检测红外光并产生对其的响应。
    • 7. 发明授权
    • Symmetric sampling
    • 对称采样
    • US06304832B1
    • 2001-10-16
    • US09268674
    • 1999-03-16
    • Nils Ingvar AndermoDavid SkurnikMark L. Delany
    • Nils Ingvar AndermoDavid SkurnikMark L. Delany
    • G06F1900
    • H03M1/0658G01D5/2053H03M1/22
    • The invention provides a method of sampling precision measurement signals to achieve an accurate measurement position at a particular measurement time, such that the measurement accuracy is unaffected by the velocity of motion. The method involves sampling each signal during a predetermined sampling period such that a signal from one sensor is sampled first, a signal from a second sensor sampled second, etc., and then the signals are sampled in reverse order such that the first signal sampled is sampled last. These sampled signals are averaged and produce a precision measurement at a time measured at one-half of the sampling time. In addition, this method can be applied to the use of separate scale tracks where each scale track is alternately sampled, or alternatively, where one scale track is sampled in the middle of the sampling period of another scale track.
    • 本发明提供一种采集精确测量信号以在特定测量时间获得精确测量位置的方法,使得测量精度不受运动速度的影响。 该方法涉及在预定采样周期期间对每个信号进行采样,使得来自一个传感器的信号首先被采样,来自第二传感器采样的信号等等,然后以相反的顺序采样信号,使得采样的第一信号为 最后抽样。 对这些采样信号进行平均,并在采样时间的一半时间内测量精度。 此外,该方法可以应用于使用其中每个刻度轨道被交替采样的单独的刻度轨迹,或者替代地,在另一个刻度轨迹的采样周期的中间采样一个刻度轨道。
    • 9. 发明授权
    • Signal conditioning methods and circuits for a capacitive sensing integrated tire pressure sensor
    • 用于电容式传感集成轮胎压力传感器的信号调理方法和电路
    • US07454967B2
    • 2008-11-25
    • US11825883
    • 2007-07-09
    • David Skurnik
    • David Skurnik
    • B60C23/02H03M1/12
    • B60C23/0408G01L9/12
    • A tire pressure monitoring system is provided that includes a switched capacitor circuit having a clock with two non-overlapping clock phases that control a state of analog switches of the switched capacitor circuit. The system uses tire pressure sensor MEMS capacitors that are measured differentially. A capacitance-to-voltage converter is connected to the MEMS sense capacitor, and a sigma-delta converter having a comparator with a first digital output state and a second digital output state is used. The first output state is a sum of reference voltages and the second output state is a difference of the reference voltages. An average value of the capacitance-to-voltage converter output is driven to a zero value and a digital output is provided of the average output states that is equal to a difference between the MEMS capacitors divided by their sum multiplied by a ratio of the reference voltages.
    • 提供了一种轮胎压力监测系统,其包括具有控制开关电容器电路的模拟开关的状态的具有两个非重叠时钟相位的时钟的开关电容器电路。 该系统采用差分测量的轮胎压力传感器MEMS电容器。 电容 - 电压转换器连接到MEMS感测电容器,并且使用具有第一数字输出状态和第二数字输出状态的比较器的Σ-Δ转换器。 第一输出状态是参考电压的总和,第二输出状态是参考电压的差。 将电容 - 电压转换器输出的平均值驱动为零值,并且提供数字输出,其平均输出状态等于MEMS电容器之间的差值除以它们的和乘以参考的比率 电压。