专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US10514554B2 Optical motion detecting device for a flight vehicle 有权
公开(公告)号：US10514554B2
公开(公告)日：2019-12-24
申请号：US15721751
申请日：2017-09-30
申请人： PixArt Imaging Inc.
发明人： Ching-Lin Chung , Tien-Li Lin , Sai Mun Lee
IPC分类号： G02B27/64 , G01P3/36 , G05D1/08 , G01S11/12 , G01S5/16 , G01P3/80
摘要： An optical motion detecting device for a flight vehicle includes a base, an optical motion sensor and an operating processor. The optical motion sensor is disposed on the base and adapted to capture a plurality of frames. The operating processor is electrically connected with the optical motion sensor. The operating processor analyzes a pattern within the plurality of frames to acquire displacement of the base relative to a reference plane according to a known height value, and the known height value represents a height that the flight vehicle starts to move.

2. 发明授权

US08950262B2 Device for measuring sound source distribution in three-dimensional space 有权
标题翻译：在三维空间中测量声源分布的装置
公开(公告)号：US08950262B2
公开(公告)日：2015-02-10
申请号：US13505869
申请日：2010-11-01
申请人： Minoru Teramura , Yuichi Fukuchi
发明人： Minoru Teramura , Yuichi Fukuchi
IPC分类号： G01M9/06 , G01H9/00 , G01M17/007 , G01P3/80
CPC分类号： G01M9/067 , G01H9/002 , G01M17/007 , G01P3/806
摘要： A device for measuring a sound source distribution in three-dimensional space is provided in which tracer particles included around an object are irradiated with a two-dimensional laser sheet within an x-y plane at two times separated by a short time interval, images of the irradiated tracer particles are taken, and two in-plane velocity components of the tracer particles in the laser sheet and one out-of-plane velocity component perpendicular to the laser sheet are measured based on the images taken. Further, the velocity field of the three velocity components in three-dimensional space is measured by obtaining three velocity components within a plurality of planes spaced apart in a z-axis direction perpendicular to the laser sheet and stacking the three velocity components within the plurality of planes in the z-axis direction. The sound source distribution around the object is measured from the velocity field.
摘要翻译：提供了一种用于测量三维空间中的声源分布的装置，其中包含在物体周围的示踪剂颗粒在XY平面内用二维激光片照射两分之一时间间隔，被照射的图像采用示踪剂颗粒，并且基于所拍摄的图像测量激光片中的示踪剂颗粒的两个面内速度分量和垂直于激光片的一个面外速度分量。此外，三维空间中的三个速度分量的速度场通过在垂直于激光片的z轴方向上间隔开的多个平面内获得三个速度分量并将三个速度分量堆叠在多个平面在z轴方向。物体周围的声源分布是从速度场测量的。

3. 发明授权

US6020953A Feature tracking linear optic flow sensor 失效
标题翻译：特征跟踪线性光学流量传感器
公开(公告)号：US6020953A
公开(公告)日：2000-02-01
申请号：US141627
申请日：1998-08-27
申请人： Geoffrey L. Barrows
发明人： Geoffrey L. Barrows
IPC分类号： G01P3/80 , G06T7/20 , G01P3/36 , G01B11/14
CPC分类号： G01P3/806 , G06T7/2033
摘要： This invention is a one-dimensional elementary motion detector that measu the linear optical flow in a small subsection of the visual field. This sensor measures motion by tracking the movement of a feature across the visual field and measuring the time required to move from one location to the next. First a one-dimensional image is sampled from the visual field using a linear photoreceptor array. Feature detectors, such as edge detectors, are created with simple circuitry that performs simple computations on photoreceptor outputs. The detection of the feature's location is performed using a winner-take-all (WTA) mechanism on feature detector outputs. Motion detection is the performed by monitoring the location of the high WTA output in time to detect transitions corresponding to motion. The correspondence problem is solved by ignoring transitions to and from the end lines of the WTA output bus. Speed measurement is performed by measuring the time between WTA output transitions. This invention operates in a one-dimensional subspace of the two-dimensional visual field. The conversion of a two-dimensional image section to a one-dimensional image is performed by a specially shaped photoreceptor array which preserves image information in one direction but filters out image information in the perpendicular direction. Thus this sensor measures the projection of the 2-D optical flow vector onto the vector representing the sensor's orientation. By placing several of these sensors in different orientations and using vector arithmetic, the 2-D optical flow vector can be determined.
摘要翻译：本发明是一维单元运动检测器，其测量视野的一小部分中的线性光流。该传感器通过跟踪特征在视野上的移动来测量运动，并测量从一个位置移动到下一个位置所需的时间。首先，使用线性感光体阵列从视野采样一维图像。特征检测器，例如边缘检测器，由简单的电路产生，对感光体输出进行简单的计算。使用功能检测器输出上的获胜者全部（WTA）机制来执行功能位置的检测。运动检测是通过在时间上监视高WTA输出的位置来检测对应于运动的转换来执行的。通过忽略与WTA输出总线的终端线路的转换来解决通信问题。通过测量WTA输出转换之间的时间来进行速度测量。本发明在二维视野的一维子空间中工作。二维图像部分向一维图像的转换通过特殊形状的感光体阵列执行，该感光体阵列在一个方向上保留图像信息，但是沿垂直方向滤除图像信息。因此，该传感器测量2-D光流矢量到表示传感器取向的矢量上的投影。通过将这些传感器中的几个放置在不同的方向并使用矢量运算，可以确定2-D光流矢量。

4. 发明授权

US5823460A Method and device for determining the diameter of a textile yarn cheese 失效
标题翻译：用于确定纺织纱线干酪直径的方法和装置
公开(公告)号：US5823460A
公开(公告)日：1998-10-20
申请号：US880280
申请日：1997-06-23
申请人： Ferdinand-Josef Hermanns
发明人： Ferdinand-Josef Hermanns
IPC分类号： B65H54/06 , B65H61/00 , B65H63/08 , G01D21/02 , G01P3/80 , G01P3/66
CPC分类号： G01P3/803 , B65H61/005 , B65H63/082 , G01D21/02 , B65H2701/31
摘要： In order to determine the diameter or the radius of a textile yarn cheese during winding, two sensors are placed adjacent the cheese circumference at a fixed circumferential distance from each other to detect surface characteristics of the cheese, and their sensor signals are evaluated in a correlator to form running times. The circumferential velocity of the cheese is calculated by dividing the distance between the sensors by the running times, after which the circumferential velocity and the angular velocity of the cheese are divided to compute the diameter or radius of the cheese.
摘要翻译：为了确定卷绕过程中纺织纱线干酪的直径或半径，两个传感器以相互固定的圆周距离放置在奶酪周边附近，以检测奶酪的表面特征，并且在相关器中评估其传感器信号形成运行时间。通过将传感器之间的距离除以运行时间来计算奶酪的圆周速度，之后分割奶酪的圆周速度和角速度以计算奶酪的直径或半径。

5. 发明授权

US5778016A Scanning temporal ultrafast delay methods and apparatuses therefor 失效
公开(公告)号：US5778016A
公开(公告)日：1998-07-07
申请号：US602457
申请日：1996-02-16
申请人： Gregg D. Sucha , Martin E. Fermann , Donald J. Harter
发明人： Gregg D. Sucha , Martin E. Fermann , Donald J. Harter
IPC分类号： H01S3/10 , G01B11/24 , G01M11/00 , G01P3/80 , G01R13/34 , G01S7/48 , G01S7/484 , G01S7/486 , G01S17/10 , G01S17/50 , H01S3/02 , H01S3/06 , H01S3/07 , H01S3/098 , H01S3/105 , H01S3/13 , H01S3/139 , H01S3/23 , H01S3/00
CPC分类号： H01S3/2383 , G01P3/806 , G01R13/347 , G01S17/107 , G01S17/50 , G01S7/484 , G01S7/486 , G01S7/497 , H01S3/1398
摘要： The present invention is directed to methods and apparatuses for performing temporal scanning using ultra-short pulsewidth lasers in which only minimal (micro-scale) mechanical movement is required. The invention also relates to methods for obtaining high-accuracy timing calibration, on the order of femtoseconds. A dual laser system is disclosed in which the cavity of one or more of the lasers is dithered, by using a piezoelectric element. A Fabry-Perot etalon is used to generate a sequence of timing pulses used in conjunction with a laser beam produced by the laser having the dithered laser cavity. A correlator correlates a laser pulse from one of the lasers with the sequence of timing pulses to produce a calibrated time scale. The methods and apparatuses of the present invention are applicable to many applications requiring rapid scanning and time calibration, including, but not limited to metrology, characterization of charge dynamics in semiconductors, electro-optic testing of ultrafast electronic and optoelectronic devices, optical time domain reflectometry, and electro-optic sampling oscilloscopes.

6. 发明授权

US5637996A Toy system with movable vehicles 失效
标题翻译：玩具系统与动车
公开(公告)号：US5637996A
公开(公告)日：1997-06-10
申请号：US342365
申请日：1994-11-18
申请人： Robert S. McDarren , Thomas L. Simmel
发明人： Robert S. McDarren , Thomas L. Simmel
IPC分类号： A63F9/14 , A63F9/24 , A63H18/00 , G01P3/68 , G01P3/66 , A63H30/02 , G01P3/80
CPC分类号： G01P3/68 , A63F9/143 , A63H18/005 , A63F2009/2476 , A63F2250/1094
摘要： A toy speed measuring and voice reporting system is disclosed. The system measures the speed of a toy car and reports the speed contemporaneously in audible speech. The system employs optical detectors and timing circuitry to compute the speed, and a voice synthesizer to sound the speed values and other messages.
摘要翻译：公开了一种玩具速度测量和语音报告系统。该系统测量玩具车的速度，并在可听见的语音中同时报告速度。该系统采用光学检测器和定时电路来计算速度，以及一个语音合成器来发出速度值和其他消息。

7. 发明授权

US5502658A Sampled-continuous probability method of velocity measurement of the object having informatively-structural inhomogeneity 失效
标题翻译：具有信息结构不均匀性的物体的速度测量的抽样连续概率法
公开(公告)号：US5502658A
公开(公告)日：1996-03-26
申请号：US278827
申请日：1994-07-22
申请人： Arkadi Relin
发明人： Arkadi Relin
IPC分类号： G01F1/708 , G01F1/712 , G01P3/80 , G06F17/00
CPC分类号： G01F1/712 , G01F1/708 , G01P3/80
摘要： A sampled-continuous probability method of velocity measurement of an object having informatively-structural inhomogeneity by periodical execution of a cycle of the measurement, with determination of time during which a selected local part of the object moves along the measuring base of zone of observation is proposed. Selection of the local part in the beginning of the measuring base and its subsequent determination at the end of the measuring base is performed with the use of an informative aggregate of selected informative signs of a dominant informative component of the inhomogeneity. In order to increase the accuracy and speed of the method, the beginning of each cycle of velocity measurement is performed in response to a special command formed after the beginning of a preceding cycle of the velocity measurement with a given interval of time of shifting of the cycles, but within the preceding cycle. In each cycle of the velocity measurement a total time of execution of last stages connected with the computation and saving of the measuring information is selected smaller than minimum possible working step of time quantization of the velocity to be measured. Probability estimates of various time characteristics of the dominant informative component are used to provide invariability of metrological characteristics of the method to changes of the velocity to be measured within a wide dynamic and frequency range.
摘要翻译：通过周期性执行测量的具有信息结构不均匀性的对象的速度测量的采样连续概率法，通过确定对象的选定局部部分沿着观察区域的测量基座移动的时间，提出。在测量基础开始时选择本地部分，并随后在测量基地结束时进行确定，使用非均匀性的主要信息成分的选择信息符号的信息汇总。为了提高该方法的精度和速度，速度测量的每个周期的开始是响应于在速度测量的先前循环开始之后形成的特定命令，在给定的时间间隔周期，但在上一周期内。在速度测量的每个周期中，选择与测量信息相关联的最后阶段的执行总时间小于待测量速度的时间量化的最小可行工作步骤。主要信息分量的各种时间特征的概率估计用于提供该方法的计量特征的不变性，以在宽的动态和频率范围内测量的速度的变化。

8. 发明授权

US4912519A Laser speckle velocity-measuring apparatus 失效
标题翻译：激光斑点速度测量仪
公开(公告)号：US4912519A
公开(公告)日：1990-03-27
申请号：US207864
申请日：1988-06-17
申请人： Tomio Yoshida , Nobuo Nakatsuka , Hiroshi Kitajima , Tsukasa Yamashita
发明人： Tomio Yoshida , Nobuo Nakatsuka , Hiroshi Kitajima , Tsukasa Yamashita
IPC分类号： G01P3/80
CPC分类号： G01P3/806
摘要： There is provided a laser speckle velocity-measuring apparatus comprising: a semiconductor laser to irradiate the light to a moving object; first and second photo sensing devices whose light receiving points are arranged in the moving direction of the objects at a predetermined distance so as to be away from each other; a clock signal generating and control circuit for determining a clock frequency of the clock signal so that the number of clocks of the clock signal is always set to a constant value when the delay time of the photo sensing signal of the second photo sensing device for the photo sensing signal of the first photo sensing device is measured by the clock signals; and an arithmetic operating circuit for counting the clock signals and calculating the length, moving distance, or velocity of the object on the basis of the count value. With this apparatus, the detecting time of the length or velocity of the moving object can be reduced and the measuring processes can be performed in a real-time manner.
摘要翻译：提供了一种激光散斑速度测量装置，包括：将光照射到移动物体的半导体激光器; 第一和第二感光装置，其光接收点沿物体的移动方向以预定距离布置成彼此远离; 时钟信号发生和控制电路，用于确定时钟信号的时钟频率，使得当第二感光装置的感光信号的延迟时间用于时钟信号的延迟时间时，时钟信号的时钟数总是设置为恒定值第一感光装置的感光信号由时钟信号测量; 以及算术运算电路，用于根据计数值对时钟信号进行计数并计算物体的长度，移动距离或速度。利用该装置，可以减少移动物体的长度或速度的检测时间，并且可以实时地进行测量处理。

9. 发明授权

US4856895A Method and apparatus for headbox jet velocity measurement 失效
标题翻译：流浆箱喷射速度测量的方法和设备
公开(公告)号：US4856895A
公开(公告)日：1989-08-15
申请号：US178825
申请日：1988-04-05
申请人： Daniel Parker
发明人： Daniel Parker
IPC分类号： G01P3/80 , G01P5/20
CPC分类号： G01P3/806 , G01P5/20
摘要： The velocity of a liquid jet, such as the headbox jet of a paper making machine, is measured by cross-correlation of a.c. signal components produced by a pair of light beams received by a pair of photodiodes. The light is supplied by a single source, an incandescent lamp, and is guided by a pair of bifurcated fiber optics mounted above the jet and spaced apart in the flow direction. The a.c. components are filtered to remove flow frequencies, amplified and then analyzed in a spectrum analyzer.
摘要翻译：液体射流的速度，例如造纸机的流浆箱喷射，是通过交流相关来测量的。由一对光电二极管接收的一对光束产生的信号分量。光源由单一源（白炽灯）提供，并由安装在射流上方的一对分叉光纤引导，并沿流动方向间隔开。 a.c. 过滤组分以除去流动频率，然后放大，然后在频谱分析仪中进行分析。

10. 发明授权

US4696567A Radiation detection method 失效
标题翻译：辐射检测方法
公开(公告)号：US4696567A
公开(公告)日：1987-09-29
申请号：US673130
申请日：1984-11-19
申请人： James Ruger , Wolfgang Welz
发明人： James Ruger , Wolfgang Welz
IPC分类号： G01C11/02 , G01P3/80 , H04N5/33 , G01P3/36
CPC分类号： G01C11/02 , G01P3/806 , H04N5/33
摘要： A radiation detection method utilizing essentially two serial arrangements of receiving elements which are rigidly connected to a reconnaissance plane (1) and of different lengths, which yield in longitudinal direction of sight the censor angle .epsilon. and on the ground the pictorial strips (6, 6'). The pictorial strips are arranged transverse to the axis (25) of the plane and parallel to each other. The processing of the signals is such that, by scanning the two serial arrangements with a time delay, a different signal signature results only if the scanned object (2) moves during over flight, independently of whether the reconnaissance plane (1) during the measuring operation is subject to a pitch angle .alpha. and/or a side slip angle .beta. and/or a roll angle speed. Moreover, in this way, it is also possible to independently obtain the target speed and direction.
摘要翻译：一种辐射检测方法，其利用基本上两个串联的接收元件的连接装置，这些接收元件刚性地连接到侦察平面（1）并且具有不同长度，其在纵向方向上产生检查角度ε，并且在地面上产生图形条 '）。图案条横向于平面的轴线（25）布置并且彼此平行。信号的处理使得通过以时间延迟扫描两个串联装置，只有当扫描物体（2）在飞行过程中移动时才产生不同的信号签名，而与测量期间的侦察平面（1）无关操作受到桨距角α和/或侧滑角β和/或侧倾角速度的影响。此外，以这种方式，也可以独立地获得目标速度和方向。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式