公开(公告)号：US20100065745A1

公开(公告)日：2010-03-18

申请号：US12618303

申请日：2009-11-13

Applicant: Jacques Goldberg ,  Isaac Shpantzer ,  Yaakov Achiam ,  Nadya Reingand

Inventor： Jacques Goldberg ,  Isaac Shpantzer ,  Yaakov Achiam ,  Nadya Reingand

IPC: G01F23/00

CPC classification number: G01T1/2935

Abstract: A method and system for high Z substance revealing using muon detection technique is presented. Natural muon coordinate and incidence angle are measured above and below the interrogated volume. The muon deviations after passing through the interrogated volume are compared with the reference deviations obtained for the same volume in absence of high Z material. A correlation between the actual data and reference data is calculated using Kolmogorov-Smirnov test, though other approaches may apply. The correlation is used for the decision making on the presence of a nuclear substance inside the volume.

Abstract translation: 提出了一种使用muon检测技术显示高Z物质的方法和系统。 在询问的体积之上和之下测量自然的μon坐标和入射角。 将通过询问体积后的μon偏差与不存在高Z材料的相同体积获得的参考偏差进行比较。 使用Kolmogorov-Smirnov测试来计算实际数据和参考数据之间的相关性，尽管可能采用其他方法。 相关性用于决定在体内存在核物质。

公开(公告)号：US07652254B2

公开(公告)日：2010-01-26

申请号：US11626920

申请日：2007-01-25

Applicant: Isaac Shpantzer ,  Yaakov Achiam ,  Nadejda Reingand

Inventor： Isaac Shpantzer ,  Yaakov Achiam ,  Nadejda Reingand

IPC: G01T1/00

CPC classification number: G01T1/167 ,  G01J3/4338 ,  G01N21/171 ,  G01N21/39 ,  G01N21/65 ,  G01N2021/655 ,  G01V5/0016

Abstract: A method and system for nuclear substance revealing using muon detection technique is presented. In some aspects, naturally occurred muons are selected from the flow of charged particles. Muon coordinate and incidence angle measured above and below the interrogated volume can be used for the decision making on the presence of nuclear substance inside the volume. The system is adapted for performing measurements on moving objects such as moving trucks. A combination of the nuclear substance detection system with an explosive sensing system is presented.

Abstract translation: 提出了一种使用muon检测技术进行核物质揭示的方法和系统。 在一些方面，天然发生的μ子选自带电粒子的流动。 在询问体积之上和之下测量的Muon坐标和入射角可用于决定体内核物质的存在。 该系统适于对诸如移动卡车的移动物体进行测量。 介绍了核物质检测系统与爆炸传感系统的结合。

公开(公告)号：US20090224157A1

公开(公告)日：2009-09-10

申请号：US12272780

申请日：2008-11-17

Applicant: Jacques Goldberg ,  Isaac Shpantzer ,  Yaskov Achiam ,  Nadejda Reingand

Inventor： Jacques Goldberg ,  Isaac Shpantzer ,  Yaskov Achiam ,  Nadejda Reingand

IPC: G01F23/00

CPC classification number: G01T1/2935

Abstract: A method and system for high Z material revealing using muon detection technique is presented. The system measures muons' coordinates, velocities, incidence angles and leaving angles. Two series of detectors: one above and one below the interrogated volume are used. A muon trajectory deviation from an expected trajectory is used for the decision making on the presence of high Z material inside the volume. The muon velocity is measured using either a ring Cerenkov counter, a transition radiation detector or/and a threshold Cerenkov counter. The expected trajectory is calculated basing on known particle velocity.

Abstract translation: 提出了一种使用μon检测技术进行高Z材料显露的方法和系统。 该系统测量μons的坐标，速度，入射角和离开角度。 使用两个系列的探测器：一个高于和低于询问的体积。 与预期轨迹的μ轨迹偏差用于在体积内存在高Z材料的决策上。 使用环Cerenkov计数器，过渡辐射检测器或/和阈值Cerenkov计数器测量μ子速度。 预期的轨迹是基于已知的粒子速度计算的。

公开(公告)号：US20090190929A1

公开(公告)日：2009-07-30

申请号：US12418060

申请日：2009-04-03

Applicant: Jacob Khurgin ,  Isaac Shpantzer

Inventor： Jacob Khurgin ,  Isaac Shpantzer

IPC: H04J14/02

CPC classification number: H04J14/02 ,  H04B10/61 ,  H04B10/611 ,  H04B10/613 ,  H04B10/614 ,  H04B10/6163 ,  H04B10/6165 ,  H04B10/63 ,  H04J14/06 ,  H04L27/18 ,  H04L27/2096 ,  H04L27/2697 ,  H04L2027/0018

Abstract: The present invention discloses a transmitter and receiver for optical communications system, which provide compensation of the optical link nonlinearity. M-PSK modulating is used for data embedding in an optical signal in each WDM channel using orthogonal frequency division multiplexing (OFDM) technique. At the receiver side electrical output signals from a coherent optical receiver are processed digitally with the link nonlinearity compensation. It is followed by the signal conversion into frequency domain and information recovery from each subcarrier of the OFDM signal. At the transmitter side an OFDM encoder provides a correction of I and Q components of a M-PSK modulator driving signal to compensate the link nonlinearity prior to sending the optical signal to the receiver.

Abstract translation: 本发明公开了一种用于光通信系统的发射机和接收机，其提供了光链路非线性的补偿。 使用正交频分复用（OFDM）技术，M-PSK调制用于每个WDM信道中的光信号中的数据嵌入。 在接收机侧，来自相干光接收机的电输出信号用链路非线性补偿数字地处理。 随后将信号转换成频域，并从OFDM信号的每个子载波进行信息恢复。 在发射机侧，OFDM编码器提供M-PSK调制器驱动信号的I和Q分量的校正，以在将光信号发送到接收机之前补偿链路非线性。

公开(公告)号：US20080025728A1

公开(公告)日：2008-01-31

申请号：US11867351

申请日：2007-10-04

Applicant: Isaac Shpantzer ,  Sabera Kazi

Inventor： Isaac Shpantzer ,  Sabera Kazi

IPC: H04B10/00

CPC classification number: H04B10/118 ,  H04B10/40 ,  H04B10/61

Abstract: An optical transceiver is provided for optical communications with additive noise compensation. The system and method are disclosed for the additive noise cancellation, which is typically a vibration noise, caused by moving platform, where the transceiver is located. The transceiver comprises an additive noise sensor and a digital signal processing (DSP) unit which implements variable step size technique to adjust the filter weight in the least square estimate of the noise signal. In the preferred embodiment the digital signal processing is applied both at the transmission and the receiving side. The optical device is packed for ground-satellite and inter-satellite communications applications with resistance to high-energy X-rays, gamma rays and cosmic rays. The optical device sustains its operation characteristics under launch load.

Abstract translation: 提供光收发器用于具有附加噪声补偿的光通信。 公开了用于附加噪声消除的系统和方法，其通常是由收发器所在的移动平台引起的振动噪声。 收发器包括一个附加噪声传感器和一个数字信号处理（DSP）单元，它实现可变步长技术，以调整噪声信号的最小二乘估计中的滤波器权重。 在优选实施例中，在传输和接收侧都应用数字信号处理。 该光学装置用于地面卫星和卫星间通信应用，具有耐高能X射线，γ射线和宇宙射线的能力。 光学装置在发射载荷下维持其运行特性。

公开(公告)号：US07315697B2

公开(公告)日：2008-01-01

申请号：US10173579

申请日：2002-06-18

Applicant: Israel Smilanski ,  Isaac Shpantzer ,  Jacob B. Khurgin ,  Nadejda Reingand ,  Pak Shing Cho ,  Yaakov Achiam

Inventor： Israel Smilanski ,  Isaac Shpantzer ,  Jacob B. Khurgin ,  Nadejda Reingand ,  Pak Shing Cho ,  Yaakov Achiam

IPC: H04J14/02 ,  H04B10/04

CPC classification number: H04J14/005 ,  H04B10/2543 ,  H04B10/2563 ,  H04B10/2572 ,  H04B10/505 ,  H04B10/508 ,  H04J14/02

Abstract: A multiple wavelength light source generates an output signal having a comb of accurately spaced apart frequencies with variable free spectral range in the C-band of optical fiber communication. The light source employs an electro-optical modulator (EOM) driven by a signal generator which modulates with EOM with multiple modulation frequencies to widen the output spectrum of signal. The EOM has a crystal provided with a waveguide. The waveguide may be doped with a rare-earth metal to impart gain properties to equalize the intensities of the comb. In one preferred embodiment, Er, Yt or other doping elements provide the gain property to waveguides. The crystal is also provided with periodically poled structure, and this may be engineered so as to form domains of unequal widths to improve the efficiency of modulation. The output signal from the light source may be split and presented to a bank of filters to create a multiple signals, each signal having one of the spaced apart frequencies. The output signals may be used as channels to be modulated by data and then combined in dense wavelength division multiplexing system, or may be used as a soliton source in time-division multiplexed communication systems.

Abstract translation: 多波长光源在光纤通信的C波段中产生具有可变自由光谱范围的精确间隔开的频率梳的梳状输出信号。 光源采用由信号发生器驱动的电光调制器（EOM），该调制器利用具有多个调制频率的EOM进行调制，以加宽信号的输出频谱。 EOM具有配有波导的晶体。 波导可以掺杂稀土金属以赋予增益特性以均衡梳子的强度。 在一个优选实施例中，Er，Yt或其它掺杂元件为波导提供增益特性。 晶体还具有周期性极化结构，并且这可以被设计成形成不等宽度的域以提高调制效率。 来自光源的输出信号可以被分离并呈现给一组滤波器以产生多个信号，每个信号具有间隔开的频率之一。 输出信号可以用作要由数据调制的信道，然后在密集波分复用系统中组合，或者可以用作时分多路复用通信系统中的孤立源。

公开(公告)号：US07266307B2

公开(公告)日：2007-09-04

申请号：US10215036

申请日：2002-08-09

Applicant: Isaac Shpantzer ,  Israel Smilanski ,  Jacob B. Khurgin ,  Vladimir Grigoryan ,  Pak Shing Cho ,  Nadejda Reingand ,  Guy Levy-Yurista ,  Guoliang Li

Inventor： Isaac Shpantzer ,  Israel Smilanski ,  Jacob B. Khurgin ,  Vladimir Grigoryan ,  Pak Shing Cho ,  Nadejda Reingand ,  Guy Levy-Yurista ,  Guoliang Li

IPC: H04B10/00 ,  H04B10/04

CPC classification number: H04B10/5053 ,  H04B10/25137 ,  H04B10/2543 ,  H04B10/505 ,  H04B10/5051 ,  H04B10/5057 ,  H04B10/50572 ,  H04B10/50577 ,  H04B10/508 ,  H04J14/02 ,  H04J14/08

Abstract: One embodiment of the invention relates to producing optical pulses for use on a transmission link. A light source is configured to produce an optical signal. A pulse generator is coupled to the light source. The pulse generator is configured to receive, for a first channel, the optical signal and a clock signal. The pulse generator is also configured to modify the optical signal based on the clock signal to produce an optical pulse having a predetermined pulse shape. The clock signal is associated with the predetermined pulse shape. The predetermined pulse shape being based on a transmission characteristic of the transmission link

Abstract translation: 本发明的一个实施例涉及产生用于传输链路的光脉冲。 光源被配置为产生光信号。 脉冲发生器耦合到光源。 脉冲发生器被配置为针对第一通道接收光信号和时钟信号。 脉冲发生器还被配置为基于时钟信号修改光信号以产生具有预定脉冲形状的光脉冲。 时钟信号与预定的脉冲形状相关联。 预定脉冲形状基于传输链路的传输特性

公开(公告)号：US07242481B2

公开(公告)日：2007-07-10

申请号：US11055547

申请日：2005-02-09

Applicant: Isaac Shpantzer ,  Aviv Salamon ,  Pak Shing Cho

Inventor： Isaac Shpantzer ,  Aviv Salamon ,  Pak Shing Cho

IPC: G01B11/02 ,  G01B9/02

CPC classification number: G01H9/00 ,  G01H9/004

Abstract: An optical system provides information about tangential vibration components of a surface at remote location. The optical system includes a light source assembly that emits first and second beams, each having one or more wavelengths and one or two polarizations. The first and second beams are directed to the interrogated surface. A detector system is positioned to detect a third beam formed by at least a portion of the first and second beams being reflected from the interrogated surface. The first, second and third beams having incident and reflection angles relative to the interrogated surface that do not lay in a same plane. The detector system positioned remotely from the interrogated surface, and providing information on a phase change in the third beam relative to the first and second beam. The phase change is indicative of at least one surface vibration vector component of the interrogated surface. The detector system is a 90 degree optical hybrid balanced detector with four photodiodes.

Abstract translation: 光学系统提供关于远程位置处的表面的切向振动分量的信息。 光学系统包括发射第一和第二光束的光源组件，每个光束具有一个或多个波长和一个或两个偏振。 第一和第二光束被引导到被询问的表面。 检测器系统被定位成检测由被询问的表面反射的第一和第二光束的至少一部分形成的第三光束。 第一，第二和第三光束具有相对于被询问的表面的入射角和反射角度，其不处于同一平面内。 检测器系统远离询问的表面定位，并且提供关于第三束相对于第一和第二光束的相位变化的信息。 相变表示询问表面的至少一个表面振动矢量分量。 检测器系统是具有四个光电二极管的90度光学混合平衡检测器。

公开(公告)号：US20070115475A1

公开(公告)日：2007-05-24

申请号：US11561966

申请日：2006-11-21

Applicant: Isaac Shpantzer

Inventor： Isaac Shpantzer

IPC: G01J3/45 ,  G01B9/02

CPC classification number: G01N21/171 ,  G01N21/3504 ,  G01N21/359 ,  G01N21/39 ,  G01N2021/1793

Abstract: A system and method is proposed for chemicals detection such as explosives and others, which are based on sensing of trace gases associated with the chemical. This sensing includes detection of spectrum and relative concentration of the trace gases followed by the chemical identification based on these data. The sensing is based on photothermal interferometry method modified by implementation of coherent optical detection. This modification essentially improves the device performance by increasing its sensitivity and selectivity. Improved characteristics of the device allow remote sensing of the interrogated chemicals at a distance up to 1000 meters, which is crucial for explosives detection. The coherent optical detection is performed by a coherent receiver based on 90-degrees optical hybrid.

Abstract translation: 提出了一种用于化学物质检测的系统和方法，例如爆炸物等，其基于与化学品相关的痕量气体的检测。 该检测包括基于这些数据检测光谱和痕量气体的相对浓度，然后进行化学鉴定。 该感测是基于相干光学检测实现修改的光热干涉法。 该修改通过增加其灵敏度和选择性来实质地改善器件性能。 改进的设备特性允许远程检测被询问的化学品，距离高达1000米，这对于爆炸物检测至关重要。 相干光学检测由基于90度光学混合的相干接收机执行。

公开(公告)号：US08200049B2

公开(公告)日：2012-06-12

申请号：US12629579

申请日：2009-12-02

Applicant: Arkady Kaplan ,  Isaac Shpantzer

Inventor： Arkady Kaplan ,  Isaac Shpantzer

IPC: G02B6/00 ,  G08B13/00 ,  G01J1/04

CPC classification number: G08B13/186 ,  G01M5/0091 ,  G01M11/083 ,  G02B6/4246

Abstract: A system and method for a structure monitoring and locating a disturbance event is disclosed. The system includes a compact transceiver chip sending optical signals in three optical fibers that encompass the monitored structure appropriately. The system contains a sequence of loops, wherein the first and the second fiber forming the loop clockwise, while the third fiber is winded along the same loop counterclockwise. A set of two detectors registers the returning signals, and a time delay between those signals is calculated, which is indicative of the disturbance event location. The event location is determined with different sensitivity in different parts of the monitored structure depending on the density of fibers in these parts.

Abstract translation: 公开了一种用于监测和定位扰动事件的结构的系统和方法。 该系统包括紧凑的收发器芯片，其在三根光纤中发送光信号，以适当地包含所监视的结构。 该系统包含一系列循环，其中第一和第二纤维顺时针形成环，同时第三纤维逆时针沿相同的环卷绕。 一组两个检测器记录返回信号，并计算这些信号之间的时间延迟，这表示干扰事件位置。 根据这些部分中的纤维密度，在被监测结构的不同部分中以不同的灵敏度确定事件位置。