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    • 3. 发明授权
    • Method and apparatus for using non-linear ground penetrating radar to detect objects located in the ground
    • 使用非线性地面穿透雷达来检测位于地面的物体的方法和装置
    • US08289201B2
    • 2012-10-16
    • US11758785
    • 2007-06-06
    • Sandor HollyNicholas KoumvakalisRobert Alan Smith
    • Sandor HollyNicholas KoumvakalisRobert Alan Smith
    • G01S13/04G01V3/12G01S13/00G01V3/00
    • G01S13/885F41H11/136G01S7/41G01V3/17
    • A method and apparatus for detecting objects located underground. In one advantageous embodiment, a detection system detects objects having electrical non-linear characteristics located underground. The detection system comprises a transmitter unit, a receiver, and a processor. The transmitter transmits a plurality of pulsed radio frequency signals having a first frequency and a second frequency into a ground. The receiver monitors for a response radio frequency signal having a frequency equal to a difference between the first frequency and a second frequency, wherein the response radio frequency signal is generated by an object having the non-linear conductive characteristics in response to receiving the plurality of electromagnetic signals. The processor is connected to the transmitter unit and the receiver, wherein the processor controls an operation of the transmitter unit and the receiver, wherein the object is detected when the response radio frequency signal is detected by the receiver.
    • 一种用于检测位于地下的物体的方法和装置。 在一个有利的实施例中,检测系统检测具有位于地下的电气非线性特性的物体。 检测系统包括发射器单元,接收器和处理器。 发射机将具有第一频率和第二频率的多个脉冲射频信号发射到地面中。 接收机监视具有等于第一频率和第二频率之间的差的频率的响应射频信号,其中响应于具有非线性导电特性的对象响应于接收到多个 电磁信号。 处理器连接到发射机单元和接收机,其中处理器控制发射机单元和接收机的操作,其中当接收机检测到响应射频信号时检测对象。
    • 5. 发明授权
    • Method and apparatus for detecting, locating, and identifying microwave transmitters and receivers at distant locations
    • 用于在远处的位置检测,定位和识别微波发射器和接收器的方法和装置
    • US07142147B2
    • 2006-11-28
    • US10994811
    • 2004-11-22
    • Sandor Holly
    • Sandor Holly
    • G01S7/38
    • G01S13/74G01S7/021G01S13/04G01S13/42G01S13/46G01V8/005
    • Methods and apparatuses for detecting, locating, and identifying microwave transmitters and receivers at distant locations are disclosed. First and second electromagnetic beams at first and second frequencies, respectively, are transmitted in first and second directions. The second frequency is offset from the first frequency to define an interference difference frequency. As such, the first and second electromagnetic beams interfere at a far field distance corresponding to an intersection of the first and second electromagnetic beams. In the far field the beams interfere with microwave devices that reradiate a return radiation at the difference frequency. The methods and apparatuses detect the return radiation at the difference frequency, such as by way of a receiver, and locate the interference zone to determine the location of the microwave device, such as by a processor.
    • 公开了用于在远处位置检测,定位和识别微波发射器和接收器的方法和装置。 分别在第一和第二频率的第一和第二电磁波在第一和第二方向上传送。 第二频率与第一频率偏移以限定干扰差频率。 这样,第一和第二电磁波束在对应于第一和第二电磁波束的相交处的远场距离处干扰。 在远场中,光束干扰以不同频率重新辐射返回辐射的微波装置。 方法和装置例如通过接收机检测差分频率处的返回辐射,并定位干扰区以确定微波设备的位置,例如由处理器。
    • 6. 发明申请
    • FOCAL PLANE ARRAY FOR THZ IMAGER AND ASSOCIATED METHODS
    • 用于THZ图像和相关方法的FOCAL PLANE ARRAY
    • US20050179606A1
    • 2005-08-18
    • US10780535
    • 2004-02-16
    • Sandor Holly
    • Sandor Holly
    • H01Q1/24H01Q15/00H01Q19/06H01Q21/29H01Q21/30
    • H01Q19/062H01Q1/248H01Q15/002H01Q21/29H01Q21/30
    • A high-frequency imaging system for the millimeter and submillimeter radiation includes a high frequency lens to image an object at its focal plane. The object emits electromagnetic radiation at a first frequency above the microwave band of the electromagnetic spectrum. A local oscillator generates an electromagnetic beam at a second frequency to illuminate a plurality of dual-frequency antennas at the focal plane of the lens. Intermodulation of first and second frequencies generates a signal distribution of a third frequency over the focal plane, which represents an image. Also, a method of providing an image at the third frequency of an object emitting electromagnetic radiation at a first frequency is provided. The method includes imaging the electromagnetic radiation at the first frequency from each point of the object onto the focal plane. An electromagnetic beam is transmitted to illuminate all elements of the focal plane array.
    • 用于毫米和亚毫米辐射的高频成像系统包括在其焦平面上对物体进行成像的高频透镜。 物体以高于电磁光谱的微波带的第一频率发射电磁辐射。 本地振荡器以第二频率产生电磁波束,以照射透镜焦平面处的多个双频天线。 第一和第二频率的互调产生表示图像的焦平面上的第三频率的信号分布。 此外,提供了以第一频率提供发射电磁辐射的物体的第三频率处的图像的方法。 该方法包括将来自物体的每个点的第一频率的电磁辐射成像到焦平面上。 传输电磁波束照射焦平面阵列的所有元件。
    • 7. 发明授权
    • Wavelength selectivity of lasers and control thereof for rapid action
measuring tasks
    • 激光器的波长选择性及其对快速动作测量任务的控制
    • US4425648A
    • 1984-01-10
    • US220862
    • 1980-12-29
    • Sandor Holly
    • Sandor Holly
    • H01S3/081H01S3/1055H01S3/10
    • H01S3/1055H01S3/0812
    • A laser having an active region capable of lasings at different wavelengths includes an optical resonator cavity bounded at one end by one of several different wavelength-selective gratings. An adjustable mirror selects one of the wavelength-selective gratings by optically aligning the active region with the selected wavelength-selective grating. The position of the adjustable mirror is controlled by a combination of open loop-closed loop control. The open loop control includes a staircase generator, the closed loop control includes reference mirrors coacting with a feedback reflector in the back of the adjustable mirror for directing a control beam onto a position sensor. The length of the optical resonator cavity is dithered to retune the cavity for each wavelength selection. The beams produced at the various wavelengths are used, for example, to measure the optical energy content in a gas dynamic laser medium.
    • 具有能够在不同波长处进行激光的有源区的激光器包括在一端由几个不同的波长选择性光栅之一限定的光学谐振腔。 可调镜通过将有源区域与所选择的波长选择光栅进行光学对准来选择波长选择光栅之一。 可调镜的位置由开环闭环控制的组合控制。 开环控制包括阶梯发生器,闭环控制包括参考反射镜,其与可调镜的背面中的反馈反射器共同作用,用于将控制光束引导到位置传感器上。 对于每个波长选择,光谐振器腔的长度被抖动以重新调谐空腔。 例如,在各种波长处产生的光束用于测量气体动态激光介质中的光能含量。
    • 8. 发明授权
    • Multi-band receiver using harmonic synchronous detection
    • 多频段接收机采用谐波同步检测
    • US08903669B1
    • 2014-12-02
    • US12504293
    • 2009-07-16
    • Sandor HollyDonald Elliot Harrington
    • Sandor HollyDonald Elliot Harrington
    • G06F19/00
    • G01S13/04G01S7/024G01S7/412G01S13/32G01S13/887
    • A method and apparatus for detecting an object. A first collimated beam having a first frequency and a second collimated beam having a second frequency is transmitted. At least one of the first frequency and the second frequency is changed through a range of frequencies and a power level for at least one of the first collimated beam and the second collimated beam is changed through a range of power levels. A range of fundamental difference frequency signals for each power level in the range of power levels are monitored for, in response to transmitting the first collimated beam and the second collimated beam using the range of frequencies and the range of power levels. The range of fundamental difference frequency signals is generated by the object having non-linear electrical characteristics in response to receiving the first collimated beam and the second collimated beam.
    • 一种用于检测物体的方法和装置。 发送具有第一频率的第一准直波束和具有第二频率的第二准直波束。 通过频率范围来改变第一频率和第二频率中的至少一个,并且通过功率电平范围来改变第一准直波束和第二准直波束中的至少一个的功率电平。 响应于使用频率范围和功率电平的范围来传输第一准直波束和第二准直波束,监视在功率电平范围内的每个功率电平的基波差频信号的范围。 响应于接收到第一准直光束和第二准直光束,具有非线性电特性的物体产生基本差分频率信号的范围。
    • 9. 发明授权
    • Dual frequency transmitter
    • 双频发射机
    • US08581773B1
    • 2013-11-12
    • US13241180
    • 2011-09-22
    • Sandor Holly
    • Sandor Holly
    • G01S13/89G01S7/282
    • G01S7/025F41H11/136G01S7/026G01S7/292G01S7/411G01S13/88G01S13/885G01S13/887G01S13/89
    • In embodiments a system to generate a dual frequency, circularly polarized beam of rotating electromagnetic radiation comprises a first radiation source to generate a first radiation beam at a first frequency, a second radiation source to generate a second radiation beam at a second frequency, different from the first frequency, and a tee. In some embodiments the tee receives the first radiation beam and the second radiation beam, outputs a third radiation beam which represents a sum of the first radiation beam and the second radiation beam, and outputs a fourth radiation beam which represents a difference between the first radiation beam and the second radiation beam, wherein the third radiation beam and the fourth radiation beam are separated by a ninety-degree phase shift. The system further comprises a combiner to combine the third and fourth beams to produce an output beam. Other embodiments may be described.
    • 在实施例中,产生旋转电磁辐射的双频,圆偏振光束的系统包括第一辐射源,以产生第一频率的第一辐射束,第二辐射源产生第二辐射束,其以第二频率生成第二辐射束, 第一个频率,和一个三通。 在一些实施例中,三通接收第一辐射束和第二辐射束,输出表示第一辐射束和第二辐射束之和的第三辐射束,并输出表示第一辐射束之间的差的第四辐射束 光束和第二辐射束,其中第三辐射束和第四辐射束被九十度相移分开。 该系统还包括组合器,以组合第三和第四光束以产生输出光束。 可以描述其他实施例。