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公开(公告)号：US4636779A
公开(公告)日：1987-01-13
申请号：US664189
申请日：1984-10-24
IPC分类号： B23Q17/09 , G05B19/4065 , G08B21/00
CPC分类号： B23Q17/0957 , B23Q17/0971 , B23Q17/098 , G05B19/4065 , G05B2219/37351
摘要： A system and method for monitoring vibrations of a cutting tool produced by tool break events, and for interpreting them to detect tool breaks of sufficient magnitude to endanger the machined part. The signal generated by a sensor such as an accelerometer is preprocessed to attenuate low frequency machining noise and detect the energy in a higher frequency band, then sampled, and the digitized signal samples analyzed by tool break detection logic. This logic is triggered by a positive-going signal transient, and prevents false alarms on minor tool break events that do not mar the workpiece and on noise from other sources.
摘要翻译： 一种用于监测通过工具断裂事件产生的切削工具的振动的系统和方法，并且用于解释它们以检测足够大的刀具断裂以危及加工零件。 由诸如加速度计的传感器产生的信号被预处理以衰减低频加工噪声并且检测更高频带中的能量，然后进行采样，并且通过刀具断裂检测逻辑分析数字化信号样本。 该逻辑由正向信号瞬态触发，并且防止不损坏工件和来自其他源的噪声的次要工具断裂事件的虚假警报。
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公开(公告)号：US4631683A
公开(公告)日：1986-12-23
申请号：US645203
申请日：1984-08-29
IPC分类号： B23Q17/22 , G05B19/4065 , G06F15/46 , G01M7/00 , G01N24/04
CPC分类号： G05B19/4065 , G05B2219/37351
摘要： A system and method for monitoring vibrations of a machine tool metal-cutting tool insert and interpreting them to promptly detect the initial touch to the workpiece and signal the tool to stop advancing before marring the surface. The signal generated by a sensor such as an accelerometer is preprocessed to eliminate lower frequency machine noise and detect the energy in a higher frequency band, then sampled and analyzed by digital circuitry. In order to avoid false alarms on high amplitude spiky noise pulses generated by traverse operation of the machine tool, the tool touch alarm is delayed longer than the maximum duration of the noise pulses. Two techniques are given to ignore the noise spikes while still detecting the tool touch signal.
摘要翻译： 一种用于监测机床金属切削刀具插入件的振动的系统和方法，并且解释它们以及时检测对工件的初始触摸并且在损坏表面之前发出信号以停止前进。 由诸如加速度计的传感器产生的信号被预处理以消除较低频率的机器噪声并且检测较高频带中的能量，然后由数字电路采样和分析。 为了避免由机床的横动操作产生的高振幅尖峰噪声脉冲的误报，工具触摸报警延迟时间比噪声脉冲的最大持续时间长。 给出两种技术来忽略噪声尖峰，同时仍然检测到工具触摸信号。
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3.发明授权Detector to discriminate between tool break acoustic signatures and spiky noise 失效用于区分工具断裂声学特征和尖刺噪声的检测器
公开(公告)号：US4707687A
公开(公告)日：1987-11-17
申请号：US859533
申请日：1986-05-05
IPC分类号： G05B19/4065
CPC分类号： G05B19/4065 , B23Q17/0971 , B23Q17/098
摘要： In some machining conditions the background noise in an acoustic cutting tool break detection system is a low mean level with fairly dense high amplitude noise spikes. A common tool break vibration signature is the sudden appearance of a dense spiky noise. Digital signal pattern recognition logic uses an up/down counter to reject the noise on the basis of its lower spike density while alarming on such a tool break signature. Preprocessed vibration signal samples are tested against a detection threshold and an alarm generated if those whose amplitude is above the threshold amplitude exceeds those below by a preset count.
摘要翻译： 在一些加工条件下，声学切割刀具断裂检测系统中的背景噪声是具有相当密集的高幅度噪声尖峰的低平均水平。 常见的工具断裂振动特征是突然出现密集的尖峰噪声。 数字信号模式识别逻辑使用向上/向下计数器来基于其较低的峰值密度来抑制噪声，同时在这种刀具断裂特征上报警。 根据检测阈值对预处理的振动信号样本进行测试，如果振幅超过阈值振幅的振幅信号样本超过了预设计数值，则生成报警。
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公开(公告)号：US20110157595A1
公开(公告)日：2011-06-30
申请号：US12650322
申请日：2009-12-30
CPC分类号： G01B9/02018 , G01B9/02056 , G01B9/02081 , G01B11/26 , G01B2290/15 , G01B2290/45 , G01B2290/70
摘要： An angular displacement of an object is measured interferometrically by splitting a laser beam into a reference beam and a measuring beam. The reference beam is directed at a stationary reference retroreflector and then a phase shift detector. The measuring beam is directed at a rotatable reflective surface of the object and then a stationary measuring retroreflector and then back to the rotatable reflective surface and then to the phase shift detector such that the phase shift detector measures an angular displacement of the rotatable reflective surface when the length of the path of the measuring beam changes when the rotatable reflective surface is displaced.
摘要翻译： 通过将激光束分成参考光束和测量光束来对物体的角位移进行干涉测量。 参考光束指向静止的参考后向反射器，然后是相移检测器。 测量光束指向物体的可旋转反射表面，然后指向静止测量后向反射器，然后返回到可旋转反射表面，然后返回到相移检测器，使得相移检测器测量可旋转反射表面的角位移， 当可旋转的反射表面被移位时，测量光束的路径的长度改变。
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5.发明授权Fast determination of subtype relationship in a single inheritance type hierarchy 失效在单个继承类型层次结构中快速确定子类型关系
公开(公告)号：US5267349A
公开(公告)日：1993-11-30
申请号：US488880
申请日：1990-03-06
CPC分类号： G06F8/437 , G06F9/4433
摘要： A system and method for quickly determining whether a requested object is an ancestor of a particular object where both objects are contained in a single inheritance type hierarchy. The system encodes each object in memory with a binary pattern that indicates the ancestry of the object and a mask which indicates which bits of the binary pattern are significant for determining ancestry. This allows a system, upon receiving a request for an object, to determine in only two steps whether any particular object in memory can satisfy the request as a sub-type of the requested object.
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6.发明授权Expert system for performing beta-token partitioning in a RETE network 失效用于在RETE网络中执行BETA-TOKEN分区的专家系统
公开(公告)号：US5155803A
公开(公告)日：1992-10-13
申请号：US364021
申请日：1989-06-08
CPC分类号： G06N5/047
摘要： A new expert system that facilitates beta-token partitioning of rules in a RETE network. The expert system includes a beta opinion value generating portion that generates, for each node in the RETE network, an opinion value in response to processing statistics. A beta decision value generating portion generates a beta-token partition opinion value for a rule in response to the beta opinion values for nodes in the RETE network defining a rule.
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公开(公告)号：US08921734B2
公开(公告)日：2014-12-30
申请号：US13294096
申请日：2011-11-10
申请人： William S. Yerazunis , John C. Barnwell, III , Scott A. Bortoff , Vijay Shilpiekandula , Abraham Goldsmith
发明人： William S. Yerazunis , John C. Barnwell, III , Scott A. Bortoff , Vijay Shilpiekandula , Abraham Goldsmith
CPC分类号： B23K26/08 , B23K26/082 , B23K26/0876 , B23K26/38
摘要： A laser cutting machine includes a platform and a motion system. The motion system includes a first prismatic joint facilitating a first motion of the platform along a first direction and a second prismatic joint facilitating a second motion of the platform along a second direction. A galvano arranged on the platform, such that a motion of the platform causes a motion of the galvano, the galvano including a first mirror, wherein a third motion of the first mirror positions the laser beam along a third direction, and a second mirror, wherein a fourth motion of the second mirror positions the laser beam along a fourth direction. A control module controls concurrently the motion system and the galvano, such that a position of the laser beam on the workpiece is a vector sum of the first motion, the second motion, the third motion, and the fourth motion.
摘要翻译： 激光切割机包括平台和运动系统。 该运动系统包括一个便于平台沿着第一方向的第一运动的第一棱柱形接头，以及有助于平台沿着第二方向进行第二运动的第二棱柱形接头。 布置在平台上的电流体，使得平台的运动导致电流体的运动，电流体包括第一反射镜，其中第一反射镜的第三运动沿着第三方向定位激光束，并且第二反射镜， 其中所述第二反射镜的第四运动沿着第四方向定位所述激光束。 控制模块同时控制运动系统和电流，使得激光束在工件上的位置是第一运动，第二运动，第三运动和第四运动的矢量和。
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公开(公告)号：US20090165139A1
公开(公告)日：2009-06-25
申请号：US11962818
申请日：2007-12-21
IPC分类号： G06F21/02
CPC分类号： G06F21/74
摘要： An apparatus is configured to perform secure processing of confidential information. The apparatus comprises a secure disk configured to store confidential information arranged inside a lockable container; a processor configured to process the confidential information arranged inside the lockable container; an insecure network arranged outside the lockable container; and means for connecting the processor only to the secure disk or alternatively to the insecure network at any one time, but not to both the secure disk and the insecure network at the same time.
摘要翻译： 一种装置被配置为执行机密信息的安全处理。 该装置包括：安全盘，用于存储布置在可锁定容器内的机密信息; 处理器，被配置为处理布置在所述可锁定容器内的机密信息; 布置在可锁定容器外部的不安全网络; 以及用于在任何一个时间将处理器仅连接到安全盘或替换为不安全网络的装置，而不是同时将安全盘和不安全网络连接到安全盘。
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公开(公告)号：US06906754B1
公开(公告)日：2005-06-14
申请号：US09666757
申请日：2000-09-21
CPC分类号： G09G1/04 , G09G3/007 , G09G5/39 , G09G2340/0464
摘要： A display device includes a display screen, and horizontal and vertical display signals. The horizontal and vertical display signals are to render an image on the display screen. A first and second accelerometers are directly coupled to the display screen. First and second compensation circuits convert acceleration in horizontal and vertical directions respectively to x- and y-compensation signals. First and second adders combine the x- and y-compensation signals with the horizontal and vertical display signals to dynamically adjust a location of the image on the display screen while the display device is subject to movement.
摘要翻译： 显示装置包括显示屏，以及水平和垂直显示信号。 水平和垂直显示信号是在显示屏上呈现图像。 第一和第二加速度计直接耦合到显示屏。 第一和第二补偿电路将水平和垂直方向的加速度分别转换为x和y补偿信号。 第一和第二加法器将x和y补偿信号与水平和垂直显示信号组合，以在显示装置经受运动时动态地调整图像在显示屏上的位置。
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公开(公告)号：US06870148B2
公开(公告)日：2005-03-22
申请号：US10453097
申请日：2003-06-03
CPC分类号： G01J1/44
摘要： A method and apparatus determining an intensity of light flux. First, a photodiode or LED is charged by reverse-biasing to a fixed voltage. The fixed voltage is a sum of a threshold voltage and a predetermined offset voltage. Then, a time to discharge the photodiode to the threshold voltage by a photo current is measured to determine an intensity of light producing the photocurrent.
摘要翻译： 确定光通量强度的方法和装置。 首先，通过对固定电压进行反向偏置来对光电二极管或LED进行充电。 固定电压是阈值电压和预定偏移电压之和。 然后，测量通过光电流将光电二极管放电到阈值电压的时间，以确定产生光电流的光的强度。
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