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1. 发明授权

US5598488A Object movement estimator using one-dimensional optical flow 失效
标题翻译：使用一维光流的物体运动估计器
公开(公告)号：US5598488A
公开(公告)日：1997-01-28
申请号：US120591
申请日：1993-09-13
申请人： Tomaso Poggio , John G. Harris , Nicola Ancona
发明人： Tomaso Poggio , John G. Harris , Nicola Ancona
IPC分类号： G06T7/20 , G06K9/64 , G06F17/15
CPC分类号： G06T7/20
摘要： An object movement estimator (400) predicts optical flow by estimating changes in sensed images using one-dimensional correlations. Sensed image portions are stored at a first instant of time and compared with sensed image portions at a second instant of time. An optimal flow is estimated by performing a one-dimensional correlation of the sensed image portions at the first and second instants of time, and a time-to-contact is estimated based on the predicted optical flow thus obtained.
摘要翻译：物体运动估计器（400）通过使用一维相关估计感测图像的变化来预测光流。感测的图像部分在第一时刻存储，并在第二时刻与感测的图像部分进行比较。通过在第一和第二时刻执行感测图像部分的一维相关来估计最佳流量，并且基于如此获得的预测光流量来估计接触时间。

2. 发明授权

US5717792A Object movement estimator using one-dimensional optical flow 失效
标题翻译：使用一维光流的物体运动估计器
公开(公告)号：US5717792A
公开(公告)日：1998-02-10
申请号：US573044
申请日：1995-12-15
申请人： Tomaso Poggio , John G. Harris , Nicola Ancona
发明人： Tomaso Poggio , John G. Harris , Nicola Ancona
IPC分类号： G06T7/20 , G06K9/64 , G06F17/15
CPC分类号： G06T7/20
摘要： An object movement estimator (400) predicts optical flow by estimating changes in sensed images using one-dimensional correlations. Sensed image portions are stored at a first instant of time and compared with sensed image portions at a second instant of time. An optimal flow is estimated by performing a one-dimensional correlation of the sensed image portions at the first and second instants of time, and a time-to-contact is estimated based on the predicted optical flow thus obtained.
摘要翻译：物体运动估计器（400）通过使用一维相关估计感测图像的变化来预测光流。感测的图像部分在第一时刻被存储并且在第二时刻与感测到的图像部分进行比较。通过在第一和第二时刻执行感测图像部分的一维相关来估计最佳流量，并且基于由此获得的预测光流量来估计接触时间。

3. 发明授权

US07474345B2 System and method to facilitate time domain sampling for solid state imager 有权
标题翻译：用于固态成像仪的时域采样的系统和方法
公开(公告)号：US07474345B2
公开(公告)日：2009-01-06
申请号：US10217581
申请日：2002-08-12
申请人： Qiang Luo , Zhiliang Julian Chen , John G. Harris , Steve Clynes , Michael Erwin
发明人： Qiang Luo , Zhiliang Julian Chen , John G. Harris , Steve Clynes , Michael Erwin
IPC分类号： H04N3/14 , H04N5/335
CPC分类号： H04N5/335
摘要： A time domain sampling technique for a CMOS imager enables a wide dynamic range and flexibility by employing up to two-degrees of freedom during such sampling. Two degrees of freedom can be achieved by making one or both of an integration time and a reference (e.g., voltage or current) variable during sampling. The sampling (or image capture) is implemented by associating a time with when a pixel has a desired value relative to the reference in response to the pixel receiving incident light. The reference can be fixed or variable during different portions of the sampling, and further can be programmable to implement a desired sampling pattern for a given application.
摘要翻译： CMOS成像器的时域采样技术可以在这种采样过程中采用高达两个自由度的宽动态范围和灵活性。通过在采样期间通过使积分时间和参考（例如，电压或电流）变量中的一个或两个可以实现两个自由度。采样（或图像捕获）是通过将时间与当像素具有相对于基准的期望值相对应于像素接收入射光而相关联来实现的。参考在采样的不同部分期间可以是固定的或可变的，并且还可以被编程以实现给定应用的期望的采样模式。

4. 发明授权

US5062000A "Resistive fuse" analog hardware for detecting discontinuities in early vision system 失效
标题翻译：用于检测早期视觉系统不连续性的“电阻式保险丝”模拟硬件
公开(公告)号：US5062000A
公开(公告)日：1991-10-29
申请号：US412329
申请日：1989-09-25
申请人： John G. Harris , Christof Koch
发明人： John G. Harris , Christof Koch
IPC分类号： G06F1/26 , G06K9/36 , G06T1/40 , H04N5/217 , H04N5/225 , H04N5/243
CPC分类号： H04N5/217 , G06K9/36 , H04N5/243
摘要： This invention is primarily a "resistive fuse" circuit, being a hardware circuit that explicitly implements either analog or binary line processes in a controlled fashion. In a machine vision system for viewing an area and providing individual voltages representing the light intensity of a plurality of pixel positions within the area, this invention permits the method of operation for smoothing the individual voltages and simultaneously recognizing and preserving discontinuities in the area comprising the steps of, connecting respective ones of the individual voltages to respective ones of a plurality of intersections of a balanced network of indentical smoothing elements interconnected at intersections; allowing currents from the individual voltages to pass through the smoothing elements between the intersections and settle; within each element, providing a fixed resistance to voltages thereacross which are below a pre-established threshold amount and providing an infinite resistance to voltages thereacross which are above the pre-established threshold amount whereby as the currents flow the individual voltages are smoothed and discontinuities in the area reflected in the individual voltages are simultaneously recognized and preserved rather than being smoothed over; and, taking individual smoothed voltages from the intersections as data from the machine vision system for further processing. In a dynamically reconfigurable embodiment, the method further includes the steps of analyzing the individual smoothed voltages from the intersections to determine pixels associated with possible discontinuities and dynamically lowering said threshold amount in ones of the elements associated with pixels having possible discontinuities associated therewith whereby sensitivity to recognition of discontinuities is increased.
摘要翻译：本发明主要是一种“电阻式熔丝”电路，它是以受控的方式明确地实现模拟或二进制线路过程的硬件电路。在用于观看区域并且提供表示区域内的多个像素位置的光强度的单独电压的机器视觉系统中，本发明允许用于平滑各个电压的操作方法，并且同时识别和保留包括该区域的区域中的不连续性将各个电压中的各个电压连接到在交叉路口互连的凹凸平滑元件的平衡网络的多个交点中的各个交点的步骤; 允许来自各个电压的电流通过交叉点之间的平滑元件并沉降; 在每个元件内，提供固定的电阻，其电压低于预先建立的阈值量，并且提供对超过预先建立的阈值的电压的无限阻力，由此当电流流动时，各个电压被平滑，并且不连续性反映在各个电压中的区域同时被识别和保存，而不是被平滑化; 并且将来自交叉点的各个平滑电压作为来自机器视觉系统的数据进行进一步处理。在动态可重构实施例中，该方法还包括以下步骤：分析来自交叉点的各个平滑电压，以确定与可能的不连续性相关联的像素，并且在与具有与其相关联的可能的不连续性的像素相关联的元素中的一个元素中动态降低所述阈值量，识别不连续性增加。

5. 发明授权

US08139654B2 Device and methods for biphasic pulse signal coding 有权
标题翻译：双相脉冲信号编码的装置和方法
公开(公告)号：US08139654B2
公开(公告)日：2012-03-20
申请号：US12063099
申请日：2006-08-08
申请人： Du Chen , John G. Harris , Jose C. Principe
发明人： Du Chen , John G. Harris , Jose C. Principe
IPC分类号： H04L27/00
CPC分类号： H03M3/00 , G06N3/049 , H03K7/06 , H03M1/125 , H03M5/02 , H04L25/49
摘要： A method for coding time signals based on generating an asynchronous biphasic pulse train is provided. The method includes generating response signals based upon one or more input signals. A pulse comprises a positive pulse if a voltage of the response signal is greater than a predetermined positive voltage threshold. A pulse comprises a negative pulse if the voltage of the response signal is less than a predetermined negative voltage threshold. The method further includes a method for the reconstruction of a uniformly sampled version of the original signal.
摘要翻译：提供了一种基于产生异步双相脉冲串来编码时间信号的方法。该方法包括基于一个或多个输入信号产生响应信号。如果响应信号的电压大于预定的正电压阈值，则脉冲包括正脉冲。如果响应信号的电压小于预定的负电压阈值，则脉冲包括负脉冲。该方法还包括用于重构原始信号的均匀采样版本的方法。

6. 发明申请

US20080192841A1 Device and Methods for Biphasic Pulse Signal Coding 有权
标题翻译：双相脉冲信号编码的装置和方法
公开(公告)号：US20080192841A1
公开(公告)日：2008-08-14
申请号：US12063099
申请日：2006-08-08
申请人： Du Chen , John G. Harris , Jose C. Principe
发明人： Du Chen , John G. Harris , Jose C. Principe
IPC分类号： H04L27/20 , H03K7/06 , H03M1/00 , H03M1/60
CPC分类号： H03M3/00 , G06N3/049 , H03K7/06 , H03M1/125 , H03M5/02 , H04L25/49
摘要： A method for coding time signals based on generating an asynchronous biphasic pulse train is provided. The method includes generating response signals based upon one or more input signals. A pulse comprises a positive pulse if a voltage of the response signal is greater than a predetermined positive voltage threshold. A pulse comprises a negative pulse if the voltage of the response signal is less than a predetermined negative voltage threshold. The method further includes a method for the reconstruction of a uniformly sampled version of the original signal.
摘要翻译：提供了一种基于产生异步双相脉冲串来编码时间信号的方法。该方法包括基于一个或多个输入信号产生响应信号。如果响应信号的电压大于预定的正电压阈值，则脉冲包括正脉冲。如果响应信号的电压小于预定的负电压阈值，则脉冲包括负脉冲。该方法还包括用于重构原始信号的均匀采样版本的方法。

7. 发明授权

US08804975B2 Digital sound leveling device and method to reduce the risk of noise induced hearing loss 有权
标题翻译：数字声音调平装置和方法，降低噪声引起的听力损失的风险
公开(公告)号：US08804975B2
公开(公告)日：2014-08-12
申请号：US13148534
申请日：2010-02-12
申请人： John G. Harris , Colleen Garbe Le Prell , Qing Yang
发明人： John G. Harris , Colleen Garbe Le Prell , Qing Yang
IPC分类号： H03G3/20
CPC分类号： H03G9/025 , H03G3/3089 , H03G9/005
摘要： Devices and methods for digital sound leveling are disclosed. The subject devices and methods can be used to reduce the risk of noise induced hearing loss. According to an embodiment, an audio file can be parsed into frames that are filtered using an A-weighted digital filter and scaled to a desired power level. Accordingly, the dynamic range of an audio output at a particular volume level can be controlled.
摘要翻译：公开了用于数字声音调平的装置和方法。可以使用主题设备和方法来降低噪声引起的听力损失的风险。根据实施例，音频文件可以被解析为使用A加权数字滤波器滤波并缩放到期望功率电平的帧。因此，可以控制特定音量级别的音频输出的动态范围。

8. 发明授权

US07676362B2 Method and apparatus for enhancing loudness of a speech signal 有权
标题翻译：提高语音信号响度的方法和装置
公开(公告)号：US07676362B2
公开(公告)日：2010-03-09
申请号：US11026785
申请日：2004-12-31
申请人： Marc A. Boillot , John G. Harris
发明人： Marc A. Boillot , John G. Harris
IPC分类号： G01L11/04 , G01L19/06 , G01L21/02 , H04R1/20 , H03G5/00
CPC分类号： G10L19/26 , G10L25/15
摘要： A speech filter (108) enhances the loudness of a speech signal by expanding the formant regions of the speech signal beyond a natural bandwidth of the formant regions. The energy level of the speech signal is maintained so that the filtered speech signal contains the same energy as the pre-filtered signal. By expanding the formant regions of the speech signal on a critical band scale corresponding to human hearing, the listener of the speech signal perceives it to be louder even though the signal contains the same energy.
摘要翻译：语音滤波器（108）通过扩展语音信号的共振峰区域超过共振峰区域的自然带宽来增强语音信号的响度。保持语音信号的能量水平，使得经滤波的语音信号包含与预滤波信号相同的能量。通过在对应于人类听觉的临界频带尺度上扩展语音信号的共振峰区域，即使该信号包含相同的能量，语音信号的收听者感觉到它更响亮。

9. 发明申请

US20080247471A1 Low Power, Wavelet-Based Spike Detector 失效
标题翻译：低功耗，小波基尖峰探测器
公开(公告)号：US20080247471A1
公开(公告)日：2008-10-09
申请号：US11909060
申请日：2006-03-17
申请人： Christy L. She , John G. Harris , Jose C. Principe
发明人： Christy L. She , John G. Harris , Jose C. Principe
IPC分类号： H04B14/04
CPC分类号： A61B5/04001 , A61B5/7225 , A61B5/726 , G06K9/00523
摘要： A multi-scale spike detector for performing multi-resolution spike detections of a signal is provided. The spike detector includes a gamma filter having cascaded low-pass filters. The cascaded filters collectively provide different cutoff frequencies, each of the filters having a respective output. One of the filters has an input, at which the signal is received. The spike detector further includes combining circuitry that combines at least some of the respective outputs of the cascaded filters. The differences formed from this combining provide a waveform representation of the input signal. The waveform representation consists essentially of spikes that occur in the signal.
摘要翻译：提供了用于执行信号的多分辨率尖峰检测的多尺度尖峰检测器。尖峰检测器包括具有级联低通滤波器的伽马滤波器。级联滤波器共同提供不同的截止频率，每个滤波器具有相应的输出。滤波器中的一个具有接收信号的输入端。尖峰检测器还包括组合电路，其组合级联滤波器的相应输出的至少一些。由该组合形成的差异提供了输入信号的波形表示。波形表示基本上由信号中出现的尖峰组成。

10. 发明授权

US06642503B2 Time domain sensing technique and system architecture for image sensor 有权
标题翻译：图像传感器的时域感测技术和系统架构
公开(公告)号：US06642503B2
公开(公告)日：2003-11-04
申请号：US10064132
申请日：2002-06-13
申请人： Ravi K. Kummaraguntla , Zhiliang Julian Chen , John G. Harris
发明人： Ravi K. Kummaraguntla , Zhiliang Julian Chen , John G. Harris
IPC分类号： H01L3100
CPC分类号： H04N5/37455 , G01J1/44 , H01L27/14643 , H04N5/355 , H04N5/37457
摘要： A photodiode sensor (25) has a photodiode (30) with an associated capacitance (34), which may be a parasitic capacitance of the photodiode (30). A switch (36) is provided for charging the capacitance (34) to a predetermined reset voltage (Vreset), such that when light impinges upon the photodiode (30), the voltage on the capacitance (34) discharges in a time proportional to an intensity of the light. A circuit (42) is also provided for measuring the time for the capacitance (34) to discharge to a predetermined threshold value (33), which may be a function of time. The voltage on the output (38) of the comparator (28) may be sampled, with the sampling period also being variable as a function of time. The image may be reconstructed from time data indicating the relative times that discharge voltage of the pixels in an array cross the reference voltage (33).
摘要翻译：光电二极管传感器（25）具有具有相关电容（34）的光电二极管（30），其可以是光电二极管（30）的寄生电容。提供开关（36）用于将电容（34）充电到预定的复位电压（Vreset），使得当光照射在光电二极管（30）上时，电容（34）上的电压在与光的强度。还提供电路（42），用于测量电容（34）放电到预定阈值（33）的时间，其可以是时间的函数。可以对比较器（28）的输出（38）上的电压进行采样，采样周期也随着时间的变化而变化。可以从指示阵列中的像素的放电电压与参考电压（33）相交的相对时间的时间数据重建图像。

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