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    • 11. 发明授权
    • Universal digital signature bit device
    • 通用数字签名位设备
    • US5488615A
    • 1996-01-30
    • US486315
    • 1990-02-28
    • Noah KunoffAnant PatelRobert D. Melton
    • Noah KunoffAnant PatelRobert D. Melton
    • G06F11/277G11C5/00H04B17/00
    • G11C5/00G06F11/277G01R31/31816
    • A digital signature built-in-test (BIT) device for testing a digital circuit includes circuitry for compressing test data received from the digital circuit. The test data compressing circuitry may include one or more linear feedback shift registers (LFSR), which compresses the test data and supplies a signature data word corresponding to the test data compressed. Circuitry for enabling the test data compressing circuitry for a predetermined period of time is also included. The enabling circuitry provides an enabling signal to the test data compressing circuitry. The signature data word from the test data compressing circuitry is stored in a buffer memory circuit. Control data is received by the digital signature BIT device from a remote processor. The control data is received and processed by a control circuit, which circuit supplies control signals to the test data compressing circuitry, signature data word storing circuitry and the enabling circuitry.
    • 用于测试数字电路的数字签名内置测试(BIT)设备包括用于压缩从数字电路接收的测试数据的电路。 测试数据压缩电路可以包括一个或多个线性反馈移位寄存器(LFSR),其压缩测试数据并提供与被压缩的测试数据相对应的签名数据字。 还包括用于使测试数据压缩电路在预定时间段内的电路。 使能电路为测试数据压缩电路提供启用信号。 来自测试数据压缩电路的签名数据字被存储在缓冲存储器电路中。 数字签名BIT设备从远程处理器接收控制数据。 控制数据由控制电路接收和处理,该电路将控制信号提供给测试数据压缩电路,签名数据字存储电路和使能电路。
    • 12. 发明授权
    • Phased array antenna system to produce wide-open coverage of a wide
angular sector with high directive gain and wide frequency bandwidth
    • 相控阵天线系统产生广角覆盖的宽角度扇区,具有高指令增益和宽频带宽
    • US5479177A
    • 1995-12-26
    • US700929
    • 1984-11-20
    • Ronald M. RudishScott F. Hall
    • Ronald M. RudishScott F. Hall
    • H01Q3/22H01Q3/26
    • H01Q3/22H01Q3/2682
    • A phased array antenna system capable of scanning at rates faster than the information rate of signals being received to prevent the loss of information during the scanning process. The sensitivity loss due to sampling usually encountered is avoided. The present invention is an improvement on a prior art system that avoids the sensitivity loss in that the present invention also avoids the frequency selectivity inherent in the prior art system.The array antenna system is comprised of the means to form multiple, time-sequenced outputs, each output corresponding to a different beam of sensitivity. The beams scan the full coverage sector and together with the other outputs form a contiguous set of beams that both fill the coverage sector at any one time and also synchronously scan the full coverage sector. A differential delay network incorporating delay lines, envelope detectors and a summing junction is used to combine the outputs from the multiple beams to ensure that the responses to a single emitting source are added in unison in a manner which is not restrictive of frequency bandwidth. This arrangement retains the wide-open angular reception characteristics of a wide-beam omnidirectional antenna, while exhibiting the gain and angular resolution of a multi-element phased array antenna.
    • 一种相控阵天线系统,其能够以比正在接收的信号的信息速率快的速度进行扫描,以防止扫描过程中的信息丢失。 避免了通常遇到的采样引起的灵敏度损失。 本发明是避免灵敏度损失的现有技术系统的改进,因为本发明还避免了现有技术系统中固有的频率选择。 阵列天线系统包括形成多个时间顺序输出的装置,每个输出对应于不同的灵敏度束。 光束扫描全覆盖扇区并与其他输出一起形成连续的一组波束,其在任何一个时间填充覆盖扇区,并且同步地扫描全覆盖扇区。 使用包含延迟线,包络检测器和求和点的差分延迟网络来组合来自多个波束的输出,以确保以不限制频率带宽的方式一致地添加对单个发射源的响应。 这种布置保持广角全向天线的广角角度接收特性,同时呈现多元件相控阵天线的增益和角度分辨率。
    • 14. 发明授权
    • Apparatus for detecting high speed events
    • 用于检测高速事件的装置
    • US5304791A
    • 1994-04-19
    • US919136
    • 1992-07-23
    • Richard A. Migliaccio
    • Richard A. Migliaccio
    • G01J1/02G01J1/44G01J11/00G01S11/12H04N5/225H01T40/14
    • H04N5/2254G01S11/12
    • A photon emitting high speed event detector provides for the optimum detection and location of high speed events such as strobe light sources, pulsed laser, gunfire, and lightning. The detector includes a focal plane array, a control circuit and a cueing sensor. The focal plane array is capable of receiving and storing photons which are emitted from a device. The focal plane array is continuously switched by the control circuit between an integrate (charging) and non-integrate (clearing) state until a high speed event is detected by the cueing sensor. During the charging state, incident photon energy is stored by the focal plane array. Upon detection of an event, the cueing sensor instructs the control circuit to hold the focal plane array in the integrate state and the control circuit reads out the stored charge which can be provided to a video monitor for display.
    • 光子发射高速事件检测器提供高速事件的最佳检测和定位,例如闪光灯光源,脉冲激光,枪声和闪电。 检测器包括焦平面阵列,控制电路和提示传感器。 焦平面阵列能够接收和存储从装置发射的光子。 焦平面阵列由集成(充电)和非积分(清除)状态之间的控制电路连续切换,直到由提示传感器检测到高速事件。 在充电状态期间,入射光子能量由焦平面阵列存储。 在检测到事件时,指示传感器指示控制电路将焦平面阵列保持在积分状态,并且控制电路读出可以提供给视频监视器以进行显示的存储电荷。
    • 15. 发明授权
    • Real time adaptive probabilistic neural network system and method for
data sorting
    • 实时自适应概率神经网络系统和数据分类方法
    • US5276772A
    • 1994-01-04
    • US648194
    • 1991-01-31
    • C. David WangJames Thompson
    • C. David WangJames Thompson
    • G01J3/453G01S7/02G01S7/288G01S7/41G01S13/24G01S13/34G01S13/72G01S13/93G01S17/95G06N3/04G06F15/18
    • G06K9/6273G01J3/453G01S13/931G01S17/95G01S7/021G01S7/417G06N3/0472G06N3/049G01S13/24G01S13/348G01S13/726G01S2007/2883
    • An adaptive probabilistic neural network (APNN) includes a cluster processor circuit which generates a signal which represents a probability density function estimation value which is used to sort input pulse parameter data signals based upon a probability of obtaining a correct match with a group of input pulse parameter data signals that have already been sorted. In the APNN system, a pulse buffer memory circuit is contained within the cluster processor circuit and temporarily stores the assigned input pulse parameter data signals. The pulse buffer memory circuit is initially empty. As the input pulse parameter data signals are presented to the APNN, the system sorts the incoming data signals based on the probability density function estimation value signal generated by each currently operating cluster processor circuit. The current input pulse parameter data signal is sorted and stored in the pulse buffer memory circuit of the cluster processor circuit. A small probability density function estimation value signal indicates the current unassigned input pulse parameter data signal is not recognized by the APNN system. A large probability density function estimation value signal indicates a match and the current input pulse parameter data signal will be included within a particular cluster processor circuit.
    • 自适应概率神经网络(APNN)包括一个簇处理器电路,其产生一个表示一个概率密度函数估计值的信号,该信号用于根据获得与一组输入脉冲的正确匹配的概率对输入脉冲参数数据信号进行分类 已经排序的参数数据信号。 在APNN系统中,脉冲缓冲存储器电路包含在集群处理器电路内,并临时存储分配的输入脉冲参数数据信号。 脉冲缓冲存储器电路最初为空。 当输入脉冲参数数据信号被呈现给APNN时,系统根据由当前操作的每个集群处理器电路产生的概率密度函数估计值信号对输入的数据信号进行排序。 当前输入脉冲参数数据信号被分类并存储在集群处理器电路的脉冲缓冲存储器电路中。 小概率密度函数估计值信号表示当前未分配的输入脉冲参数数据信号不被APNN系统识别。 大概率密度函数估计值信号表示匹配,并且当前输入脉冲参数数据信号将被包括在特定的簇处理器电路内。
    • 16. 发明授权
    • Electromagnetic interference filter protection circuit
    • 电磁干扰滤波器保护电路
    • US5119266A
    • 1992-06-02
    • US458768
    • 1989-12-29
    • Edward M. Petry
    • Edward M. Petry
    • H02H9/00H05K9/00
    • H05K9/0066H02H9/005
    • A protection circuit for use with an electromagnetic interference filter used in conjunction with a three phase power circuit operating at a particular line frequency includes three capacitors which are coupled to the output terminals of the electromagnetic interference filter. The electromagnetic interference filter and the power circuit have a resonant frequency which is substantially equal to the line frequency. The capacitors of the protection circuit have values which are selected to change the resonant frequency of the electromagnetic interference filter and power circuit such that the resonant frequency is not substantially equal to the line frequency. A protection circuit assembly for use with an electromagnetic interference filter includes a base plate, three ceramic capacitors, three heat conducting substrates, and a protective cover which is mounted on the base plate. The capacitors are mounted on the heat conducting substrates, and the substrates are mounted on the base plate.
    • 与用于特定线路频率工作的三相电源电路一起使用的电磁干扰滤波器使用的保护电路包括耦合到电磁干扰滤波器的输出端的三个电容器。 电磁干扰滤波器和功率电路具有基本上等于线路频率的谐振频率。 保护电路的电容器具有被选择为改变电磁干扰滤波器和电源电路的谐振频率的值,使得谐振频率基本上不等于线路频率。 与电磁干扰滤波器一起使用的保护电路组件包括基板,三个陶瓷电容器,三个导热基板和安装在基板上的保护盖。 电容器安装在导热基板上,基板安装在基板上。
    • 17. 发明授权
    • Virtual beam system
    • 虚拟光束系统
    • US6163564A
    • 2000-12-19
    • US132037
    • 1998-08-11
    • Ronald RudishJoseph Levy
    • Ronald RudishJoseph Levy
    • G01S13/02G01S13/28G01S13/32H01Q3/26H01Q3/30H04B1/69H04B7/04H04B7/08
    • G01S7/023G01S13/288G01S13/325G01S2013/0281H01Q3/26H01Q3/2605H01Q3/30H04B1/69H04B7/0408H04B7/086
    • A virtual beam system operating in an environment, including a non-compatible receiver, includes a transmitting subsystem and a receiving subsystem. The transmitting subsystem includes an array of transmitting elements and an element position encoded composite signal generator for generating an element position encoded composite signal. The array of transmitting elements is operatively coupled to the signal generator. The transmitting subsystem radiates the element position encoded composite signal via the array of transmitting elements. The receiving subsystem is responsive to the element position encoded composite signal and includes a receiving element and an element position encoded composite signal decoder for decoding the element position encoded composite signal. The receiving element is operatively coupled to the signal decoder. The element position encoded composite signal appears to be radiated as a wide beam, with relatively low directive gain, when received and decoded by the non-compatible receiver. Conversely, the element position encoded composite signal appears to be radiated as a narrow beam, with relatively high directive gain, when received by the receiving element and decoded by the signal decoder of the receiving subsystem.
    • 在包括不兼容接收机的环境中操作的虚拟波束系统包括发射子系统和接收子系统。 发射子系统包括发射元件阵列和元件位置编码复合信号发生器,用于产生元件位置编码复合信号。 发射元件的阵列可操作地耦合到信号发生器。 发射子系统经由发射元件阵列辐射元件位置编码复合信号。 接收子系统响应于元件位置编码的复合信号,并且包括接收元件和元素位置编码的复合信号解码器,用于对元件位置编码复合信号进行解码。 接收元件可操作地耦合到信号解码器。 当由不兼容的接收机接收和解码时,元素位置编码的复合信号似乎被辐射为宽波束,具有相对低的指令增益。 相反地​​,元件位置编码的复合信号似乎被辐射为窄波束,具有较高的指令增益,当被接收元件接收并被接收子系统的信号解码器解码时。
    • 18. 发明授权
    • Antenna and method for two-dimensional angle-of-arrival determination
    • US06104346A
    • 2000-08-15
    • US226422
    • 1999-01-06
    • Ronald M. RudishEdward Magill
    • Ronald M. RudishEdward Magill
    • G01S3/04G01S3/46H01Q21/20G01S5/02
    • H01Q21/20G01S3/04G01S3/46
    • An antenna and system for determining two-dimensional angle-of-arrival includes circular array interferometers for azimuth, linear interferometers for elevation, and a mast for positioning the interferometers in a vertically stacked orientation. The circular array interferometers exhibit azimuth constant-phase-difference contours orthogonal to elevation constant-phase-difference contours exhibited by the linear interferometers. An antenna and system for determining azimuth of input signals includes ambiguous and non-ambiguous circular array interferometers. The non-ambiguous circular array interferometer resolves ambiguities introduced by the ambiguous circular array interferometer, the at least one ambiguous circular array interferometer operatively coupled to a low-order Butler matrix and power divider/combiner such that a high order Butler matrix is not required to generate omnidirectional phase modes from the ambiguous circular array interferometer. A method for determining phase differences indicative of two-dimensional angle-of-arrival includes determining a first phase difference indicating azimuth using circular array interferometers, determining a second phase difference indicating elevation using linear interferometers, and orienting the interferometers in a vertically stacked orientation such that the azimuth constant-phase-difference contours are orthogonal to the elevation constant-phase-difference contours. A method for determining phase difference representative of azimuth includes determining a phase difference indicative of azimuth using ambiguous circular array interferometer and non-ambiguous circular array interferometers, and resolving ambiguities in azimuth introduced by the ambiguous circular array interferometer using the non-ambiguous circular array interferometer, the at least one ambiguous circular array interferometer operatively coupled to a low-order Butler matrix and power divider/combiner such that a high order Butler matrix is not required to generate omnidirectional phase modes from the ambiguous circular array interferometer. A method for determination of polarization of input signals with only one added element.