Two-mean level-crossing time interval estimation method
    11.
    发明授权
    Two-mean level-crossing time interval estimation method 失效
    双平均电平交叉时间间隔估计方法

    公开(公告)号:US07133791B1

    公开(公告)日:2006-11-07

    申请号:US11102447

    申请日:2005-03-31

    申请人: Wei Su

    发明人: Wei Su

    IPC分类号: G06F15/00 G01D18/00 H03F1/26

    CPC分类号: G01R23/10

    摘要: N-sample level-crossing estimator methods and devices are provided that extract more information from given time samples than the current two-sample approach and that are more resistant to interference from noises. The two-mean level-crossing time-interval estimation method extracts more information from given time samples than existing methods, advantageously estimates a level-crossing time interval with a limited number of time samples and is quieter than current noisy estimation techniques. The two-mean level crossing time-interval estimation method for N-sample estimation uses all N time samples by calculating the mean value of the first N/2 time samples and subtracting it by the second N/2 time sample to average out the noises in time samples. The two-mean level crossing time-interval estimation method can be implemented by using a Finite Impulse Response filter to take level-crossing time samples as inputs, take the differential level-crossing time samples as inputs, or take the N/2-step differential level-crossing time-interval as an input. An addition only one-step differential level-crossing time-interval estimator device and a one-step differential level-crossing time-interval estimator device are also provided.

    摘要翻译: 提供了N个采样级别交叉估计器方法和装置,其从给定的时间样本中提取比目前的两个样本方法更多的信息,并且更能抵抗来自噪声的干扰。 双平均电平交叉时间间隔估计方法从现有方法中提取给定时间样本的更多信息,有利地估计具有有限数量的时间样本的电平交叉时间间隔,并且比当前噪声估计技术更安静。 用于N样本估计的两平均电平交叉时间间隔估计方法通过计算第一N / 2个时间采样的平均值并且通过第二N / 2个时间采样来减去噪声来使用所有N个时间采样 在时间样本。 可以通过使用有限脉冲响应滤波器来实现两平均电平交叉时间间隔估计方法,以将电平交叉时间采样作为输入,将差分电平交叉时间采样作为输入,或采取N / 2步 差分电平交叉时间间隔作为输入。 还提供了仅一步差分电平交叉时间间隔估计器装置和一步差分电平交叉时间间隔估计器装置。

    Digital eye camera
    12.
    发明授权
    Digital eye camera 有权
    数码眼镜

    公开(公告)号:US06361167B1

    公开(公告)日:2002-03-26

    申请号:US09592899

    申请日:2000-06-13

    IPC分类号: A61B314

    摘要: A digital camera that combines the functions of the retinal camera and corneal camera into one, single, small, easy to use instrument. The single camera can acquire digital images of a retinal region of an eye, and digital images of a corneal region of the eye. The camera includes a first combination of optical elements for making said retinal digital images, and a second combination of optical elements for making said corneal digital images. A portion of these elements are shared elements including a first objective element of an objective lens combination, a digital image sensor and at least one eyepiece for viewing either the retina or the cornea. The retinal combination also includes a first changeable element of said objective lens system for focusing, in combination with said first objective element, portions or all of said retinal region at or approximately at a common image plane. The retinal combination also includes a retinal illuminating light source, an aperture within said frame and positioned within said first combination to form an effective retinal aperture located at or approximately at the lens of the eye defining an effective retinal aperture position, an infrared camera for determining eye position, and an aperture adjustment mechanism for adjusting the effective retinal aperture based on position signals from said infrared camera. The cornea combination of elements includes a second changeable element of said objective lens system for focusing, in combination with said first objective element, portions or all of said cornea region at or approximately at a common image plane.

    摘要翻译: 数码相机将视网膜摄像机和角膜摄像机的功能组合成一个,单个,小型,易于使用的仪器。 单个相机可以获取眼睛的视网膜区域的数字图像和眼睛的角膜区域的数字图像。 相机包括用于制造所述视网膜数字图像的光学元件的第一组合以及用于制造所述角膜数字图像的光学元件的第二组合。 这些元件的一部分是包括物镜组合的第一目标元件,数字图像传感器和用于观察视网膜或角膜的至少一个目镜的共享元件。 视网膜组合还包括所述物镜系统的第一可变元件,用于与所述第一目标元件结合,在或在其共同的图像平面处聚焦所述视网膜区域的一部分或全部。 视网膜组合还包括视网膜照明光源,所述框架内的孔,并定位在所述第一组合内,以形成位于眼睛的眼睛或近似位于眼睛的镜片处的有效视网膜孔,限定有效的视网膜孔位置,用于确定的红外照相机 眼睛位置和用于根据来自所述红外摄像机的位置信号调节有效视网膜孔径的光圈调节机构。 元件的角膜组合包括所述物镜系统的第二可变元件,用于与所述第一物镜组合在一起或近似于共同的图像平面处聚焦所述角膜区域的一部分或全部。

    Eye imaging unit having a circular light guide
    13.
    发明授权
    Eye imaging unit having a circular light guide 失效
    具有圆形光导的眼睛成像单元

    公开(公告)号:US5822036A

    公开(公告)日:1998-10-13

    申请号:US820224

    申请日:1997-03-18

    CPC分类号: A61B3/125 A61B3/145

    摘要: An eye imaging system having a portable image capture unit having a circular light guide positioned adjacent to and behind a corneal contact lens for controlling directing light over a wide field to the retina of an eye and provide more light towards the center of the eye.

    摘要翻译: 一种具有便携式图像捕获单元的眼睛成像系统,其具有邻近角膜隐形眼镜并在角膜接触透镜之后定位的圆形光导,用于控制将光线在宽视野上引导到眼睛的视网膜,并向眼睛的中心提供更多的光。

    FULL WORKING CONDITION PASSAGE-SEPARATED AND TIME-SEPARATED SUPERCHARGED INTAKE INTERNAL COMBUSTION ENGINE VARIABLE COMPRESSION RATIO TECHNOLOGY

    公开(公告)号:US20200318561A1

    公开(公告)日:2020-10-08

    申请号:US16652816

    申请日:2018-04-13

    申请人: Wei Su

    发明人: Wei Su

    IPC分类号: F02D41/00 F02B33/44

    摘要: Passage-separated intake of the present invention refers to that a separate supercharged intake passage and a separate supercharged intake supply apparatus are provided such that natural intake is separated from supercharged intake to implement respective intake without mutual interference. Time-separated intake refers to that in order to avoid a cylinder C from becoming a passage between natural intake and supercharged intake, natural intake is performed first in an intake stroke, and supercharged intake is performed after a bottom dead center of the intake stroke at the end of the natural intake. The efficiency of supercharged intake in this case is

    Method and apparatus for generic mapping procedure GMP mapping and method and apparatus for generic mapping procedure GMP demapping
    15.
    发明授权
    Method and apparatus for generic mapping procedure GMP mapping and method and apparatus for generic mapping procedure GMP demapping 有权
    通用映射过程GMP映射的方法和装置,通用映射过程GMP解映射的方法和装置

    公开(公告)号:US09025619B2

    公开(公告)日:2015-05-05

    申请号:US13531037

    申请日:2012-06-22

    IPC分类号: H04J3/16 H04J3/12 H04J3/07

    摘要: Embodiments of the present invention disclose a method for the generic mapping procedure GMP mapping, a method for GMP demapping, and an apparatus. The method for mapping includes: carrying, in an overhead GMP OH of the ith GMP block container, information about a TS that needs to be occupied by the (i+n)th GMP block container; adjusting the (i+n)th GMP block container according to the information about the TS that needs to be occupied by the (i+n)th GMP block container; performing, according to the adjusted (i+n)th GMP block container, the GMP mapping on customer service data to be sent, so that a receive end is capable of adopting a corresponding demapping manner according to a change of the block container, which implements lossless mapping and demapping processing by adopting a GMP for a variable block container.

    摘要翻译: 本发明的实施例公开了通用映射过程GMP映射的方法,用于GMP解映射的方法和装置。 映射方法包括:在第iGMP块容器的开销GMP OH中携带需要被第(i + n)个GMP块容器占用的TS的信息; 根据关于需要被第(i + n)个GMP块容器占用的TS的信息调整第(i + n)个GMP块容器; 根据所调整的第i + n个GMP块容器,执行要发送的客户业务数据的GMP映射,使得接收端能够根据块容器的变化采用对应的解映射方式, 通过对可变块容器采用GMP实现无损映射和解映射处理。

    Transformation between Image and Map Coordinates
    16.
    发明申请
    Transformation between Image and Map Coordinates 有权
    图像与地图坐标之间的转换

    公开(公告)号:US20130162838A1

    公开(公告)日:2013-06-27

    申请号:US13335442

    申请日:2011-12-22

    IPC分类号: H04N5/225 G06K9/00

    摘要: Systems and methods for transformations between image and map coordinates, such as those associated with a video surveillance system, are described herein. An example of a method described herein includes selecting a reference point within the image with known image coordinates and map coordinates, computing at least one transformation parameter with respect to a location and a height of the camera and the reference point, detecting a target location to be tracked within the image, determining image coordinates of the target location, and computing map coordinates of the target location based on the image coordinates of the target location and the at least one transformation parameter.

    摘要翻译: 本文描述了用于图像和地图坐标之间的转换的系统和方法,例如与视频监控系统相关联的系统和方法。 本文描述的方法的示例包括在图像中选择具有已知图像坐标和地图坐标的参考点,相对于照相机和参考点的位置和高度计算至少一个变换参数,将目标位置检测到 在图像内跟踪,确定目标位置的图像坐标,以及基于目标位置和至少一个变换参数的图像坐标来计算目标位置的地图坐标。

    Method of automated demodulation and classification of phase-shift-keying signals using hysteretic differential zero-crossing time samples
    17.
    发明授权
    Method of automated demodulation and classification of phase-shift-keying signals using hysteretic differential zero-crossing time samples 失效
    使用滞后微分零交叉时间样本的相移键控信号的自动解调和分类方法

    公开(公告)号:US08472564B1

    公开(公告)日:2013-06-25

    申请号:US13437336

    申请日:2012-04-02

    申请人: Wei Su

    发明人: Wei Su

    IPC分类号: H03D3/00

    CPC分类号: H04L27/0012 H04L27/2337

    摘要: An automatic zero-crossing signal demodulation and classification device for rapidly identifying unknown modulation in a signal identifies unknown modulation in a signal, demodulates differential phase shift keying signals and automatically recognizes certain phase shift keying signals. This is accomplished by eliminating unknown term fc in differential phase estimation, introducing a symbol rate tracking mechanism, applying hysteresis nonlinearity to eliminate phase shaping effect and using weighted average to estimate phase difference. Better estimates are accomplished by using hysteretic nonlinear function to detect zero-crossing points in eliminating false detecting of zero-crossing points caused by additive noise, and calculating differential phase without directly using center frequency to simplify estimation process. Present invention also encompasses automated zero-crossing signal surveillance demodulation and classification device for rapidly identifying unknown modulation in a signal and method for automatic zero-crossing demodulation and classification of unknown modulation signal.

    摘要翻译: 用于快速识别信号中的未知调制的自动过零信号解调和分类装置识别信号中的未知调制,解调差分相移键控信号并自动识别某些相移键控信号。 这是通过消除差分相位估计中的未知项fc,引入符号速率跟踪机制,应用滞后非线性来消除相位整形效应并使用加权平均来估计相位差来实现的。 通过使用滞后非线性函数来检测过零点,消除由加性噪声引起的过零点的错误检测,并且不直接使用中心频率来简化估计过程来计算微分相,从而实现更好的估计。 本发明还包括用于快速识别信号中的未知调制的自动过零信号监视解调和分类装置以及用于自动过零解调和未知调制信号分类的方法。

    STOPPED OBJECT DETECTION
    18.
    发明申请
    STOPPED OBJECT DETECTION 有权
    停止对象检测

    公开(公告)号:US20120162416A1

    公开(公告)日:2012-06-28

    申请号:US12976957

    申请日:2010-12-22

    IPC分类号: H04N7/18

    摘要: A video surveillance system includes: an input configured to receive indications of images each comprising a plurality of pixels; a memory; and a processing unit communicatively coupled to the input and the memory and configured to: analyze the indications of the images; compare the present image with a short-term background image stored in the memory; compare the present image with a long-term background image stored in the memory; provide an indication in response to an object in the present image being disposed in a first location in the present image, in a second location in, or absent from, the short-term background image, and in a third location in, or absent from, the long-term background image, where the first location is different from both the second location and the third location.

    摘要翻译: 视频监控系统包括:被配置为接收包括多个像素的图像的指示的输入; 记忆 以及处理单元,其通信地耦合到所述输入和所述存储器并且被配置为:分析所述图像的指示; 将当前图像与存储在存储器中的短期背景图像进行比较; 将当前图像与存储在存储器中的长期背景图像进行比较; 提供响应于当前图像中的对象被布置在当前图像中的第一位置,在短期背景图像中的第二位置,或在短期背景图像中的第二位置以及在第三位置中的指示 ,长期背景图像,其中第一位置与第二位置和第三位置不同。

    Method of automated demodulation and classification of phase-shift-keying signals using hysteretic differential zero-crossing time samples
    19.
    发明授权
    Method of automated demodulation and classification of phase-shift-keying signals using hysteretic differential zero-crossing time samples 失效
    使用滞后微分零交叉时间样本的相移键控信号的自动解调和分类方法

    公开(公告)号:US08149956B1

    公开(公告)日:2012-04-03

    申请号:US11789130

    申请日:2007-04-23

    申请人: Wei Su

    发明人: Wei Su

    IPC分类号: H03D3/00

    CPC分类号: H04L27/0012 H04L27/2337

    摘要: An automatic zero-crossing signal demodulation and classification device for rapidly identifying an unknown modulation in a signal identifies an unknown modulation in a signal, demodulates differential phase shift keying signals and automatically recognizes certain phase shift keying signals. This is accomplished by eliminating the unknown term fc in differential phase estimation, introducing a symbol rate tracking mechanism, applying hysteresis nonlinearity to eliminate the phase shaping effect and using a weighted average to estimate the phase difference. Better estimates are accomplished by using the hysteretic nonlinear function to detect the zero-crossing points in eliminating the false detecting of the zero-crossing points caused by the additive noise, and calculating differential phase without directly using the center frequency to simplify the estimation process. The present invention also encompasses an automated zero-crossing signal surveillance demodulation and classification device for rapidly identifying an unknown modulation in a signal and a method for automatic zero-crossing demodulation and classification of an unknown modulation signal.

    摘要翻译: 用于快速识别信号中的未知调制的自动过零信号解调和分类装置识别信号中的未知调制,解调差分相移键控信号并自动识别某些相移键控信号。 这是通过消除差分相位估计中的未知项fc,引入符号率跟踪机制,应用滞后非线性来消除相位整形效应并使用加权平均来估计相位差来实现的。 通过使用滞后非线性函数来检测过零点,消除由加性噪声引起的过零点的错误检测,并且不直接使用中心频率来简化估计过程,计算差分相位来实现更好的估计。 本发明还包括用于快速识别信号中的未知调制的自动过零信号监视解调和分类装置以及用于自动过零解调和未知调制信号分类的方法。

    Multi-sensor signal fusion for modulation classification of weak signals
    20.
    发明授权
    Multi-sensor signal fusion for modulation classification of weak signals 失效
    多传感器信号融合用于弱信号的调制分类

    公开(公告)号:US08085882B1

    公开(公告)日:2011-12-27

    申请号:US12148076

    申请日:2008-04-15

    申请人: Wei Su

    发明人: Wei Su

    IPC分类号: H03D1/00 H04L27/06

    摘要: A multi-sensor signal fusion apparatus is provided for automatic modulation classification of weak unknown signals in non-cooperative communication environment with a more accurate description of the signal. The multi-sensor non-cooperative demodulation device combines a group of sensors, a signal fusion sensor, a means for signal demodulation, and a means for automatic modulation classification. An output of the signal fusion sensor is sent to a means for modulation scheme classification to select the appropriate demodulation technique for demodulating the unknown signal and provide the necessary intelligence about the monitored signals to the user and allow the user to simulate the unknown non-cooperative signal. The present invention also contemplates a multi-sensor signal fusion article of manufacture with a storage medium encoded with machine-readable computer program code for more accurate descriptions of monitored signals and methods for achieving higher accuracy descriptions of monitored signals in a non-cooperative environment with multi-sensor non-cooperative demodulation.

    摘要翻译: 提供了一种多传感器信号融合装置,用于在非协作通信环境中对未知信号进行自动调制分类,其中更准确地描述信号。 多传感器非协同解调装置组合了一组传感器,信号融合传感器,信号解调装置和自动调制分类装置。 信号融合传感器的输出被发送到用于调制方案分类的装置,以选择用于解调未知信号的适当的解调技术,并向用户提供关于被监测信号的必要智能,并允许用户模拟未知的非协作 信号。 本发明还考虑了一种具有编码有机器可读计算机程序代码的存储介质的多传感器信号融合制品,用于更准确地描述所监视的信号,以及用于在非合作环境中实现对监控信号的更高精度描述的方法, 多传感器非协同解调。