公开(公告)号：US20130262037A1

公开(公告)日：2013-10-03

申请号：US13438651

申请日：2012-04-03

Applicant: HUSSAIN AL-DUWAISH ,  ZAKARIYA AL-HAMOUZ ,  SYED ZEESHAN RIZVI

Inventor： HUSSAIN AL-DUWAISH ,  ZAKARIYA AL-HAMOUZ ,  SYED ZEESHAN RIZVI

IPC: G06F15/00

CPC classification number: G01R31/346 ,  G01R19/0053 ,  G01R31/1227

Abstract: The partial discharge noise separation method uses Independent Component Analysis (ICA) for de-noising partial discharge (PD) test signals having a noise signal component and a partial discharge component. Assuming that the noise signal component and the PD signal component are both statistically independent of each other and non-Gaussian, the ICA algorithm separates the noise component from the PD signal component from two partial discharge test signals acquired from two separate couplers per phase that are connected to the windings of a three-phase rotating machine.

Abstract translation: 局部放电噪声分离方法使用独立分量分析（ICA）去噪噪声信号分量和局部放电分量的局部放电（PD）测试信号。 假设噪声信号分量和PD信号分量在统计上彼此独立且非高斯两个，则ICA算法将噪声分量与PD信号分量与从每个相位两个分离的耦合器获得的两个局部放电测试信号分离， 连接到三相旋转机器的绕组。

公开(公告)号：US07826187B2

公开(公告)日：2010-11-02

申请号：US12107902

申请日：2008-04-23

Applicant: Ming-Dou Ker ,  Cheng-Cheng Yen ,  Chi-Sheng Liao ,  Tung-Yang Chen

Inventor： Ming-Dou Ker ,  Cheng-Cheng Yen ,  Chi-Sheng Liao ,  Tung-Yang Chen

IPC: H02H9/00

CPC classification number: G01R19/0053 ,  G01R31/002

Abstract: A transient detection circuit coupled between a first power line and a second power line and including a first control unit, a setting unit, and a voltage regulation unit. The first control unit generates a first control signal. The first control signal is at a first level when an electrostatic discharge (ESD) event occurs. The first control signal is at a second level when the ESD event does not occur. The setting unit sets a first node. The first node is set at the second level when the first control signal is at the first level. The voltage regulation unit regulates the first node. The voltage regulation unit regulates the level of the first node at the second level when the first control signal is at the second level.

Abstract translation: 耦合在第一电力线和第二电力线之间并包括第一控制单元，设定单元和电压调节单元的瞬态检测电路。 第一控制单元产生第一控制信号。 当静电放电（ESD）事件发生时，第一控制信号处于第一电平。 当ESD事件不发生时，第一控制信号处于第二级。 设置单元设置第一个节点。 当第一控制信号处于第一级时，第一节点被设置在第二级。 电压调节单元调节第一节点。 当第一控制信号处于第二电平时，电压调节单元调节处于第二电平的第一节点的电平。

公开(公告)号：US07694203B2

公开(公告)日：2010-04-06

申请号：US11773020

申请日：2007-07-03

Applicant: Frankie Y. Liu ,  Ronald Ho ,  Robert J. Drost

Inventor： Frankie Y. Liu ,  Ronald Ho ,  Robert J. Drost

IPC: G01R31/28

CPC classification number: G01R31/31705 ,  G01R19/0053 ,  G01R31/2884

Abstract: Embodiments of an integrated circuit that includes a debug circuit are described. This debug circuit is configured to test an asynchronous circuit by performing analog measurements on asynchronous signals associated with the asynchronous circuit, and includes a triggering module configured to gate the debug circuit based on one or more of the asynchronous signals. This triggering module has a continuous mode of operation and a single-shot mode of operation. A timing module within the debug circuit has a timing range exceeding a pre-determined value, and is configured to provide signals corresponding to a first time base or signals corresponding to a second time base. Furthermore, control logic within the debug circuit is configured to select a mode of operation and a given time base for the debug circuit, which is either the first time base or the second time base.

Abstract translation: 描述包括调试电路的集成电路的实施例。 该调试电路被配置为通过对与异步电路相关联的异步信号执行模拟测量来测试异步电路，并且包括被配置为基于一个或多个异步信号门控调试电路的触发模块。 该触发模块具有连续的操作模式和单次操作模式。 调试电路内的定时模块具有超过预定值的定时范围，并且被配置为提供对应于第一时基的信号或对应于第二时基的信号。 此外，调试电路内的控制逻辑被配置为选择作为第一时基或第二时基的调试电路的操作模式和给定时基。

公开(公告)号：US07612628B2

公开(公告)日：2009-11-03

申请号：US11238592

申请日：2005-09-28

Applicant: Agoston Agoston ,  John Ebner ,  Steven Pepper ,  Robert Norton

Inventor： Agoston Agoston ,  John Ebner ,  Steven Pepper ,  Robert Norton

IPC: H04B3/04

CPC classification number: H01P5/085 ,  G01R1/24 ,  G01R19/0053 ,  G01R19/2509 ,  G01R31/2822

Abstract: An ultrafast sampler includes a series of Schottky diodes configured with a coplanar waveguide to form a nonlinear transmission line (NLTL) that compresses a local oscillator input to form a series of strobe pulses. Strobe pulses of opposite polarity are capacitively coupled to sampling diodes to obtain samples of a signal applied to a signal input. The samples are directed along an intermediate frequency waveguide to, for example, a signal processor such as an oscilloscope, for storage and analysis. The intermediate frequency waveguide is configured so that conductors of the intermediate frequency waveguide receive signal samples of a common polarity and strobe samples of opposite polarities so that portions of strobe pulses delivered to a signal processor are distinguished from signal samples. In an embodiment, the intermediate frequency waveguide and the strobe waveguide are symmetrically situated along a common axis, and conductors of the strobe waveguide are positioned between the axis and the conductors of the intermediate frequency waveguide. The sampling circuit is defined on a GaAs substrate and a coaxial-to-airline-to-substrate transition is configured to deliver signals from a coaxial cable to the sampling circuit. A signal output is configured to direct the signal back into a coaxial cable.

公开(公告)号：US07345428B2

公开(公告)日：2008-03-18

申请号：US10668398

申请日：2003-09-23

Applicant: Terry R. Turner

Inventor： Terry R. Turner

IPC: H01J7/24

CPC classification number: G01R19/0007 ,  G01R19/0053 ,  G01R19/0061 ,  H01J37/32174 ,  H01J37/32935

Abstract: A system (10) is provided herein for monitoring the harmonic content of the RF signal delivered to an RF powered device (13). The system comprises (a) a voltage transducer (16) adapted to sample the voltage of the RF signal and to output a first signal representative thereof, (b) a current transducer (17) adapted to sample the current of the RF signal and to output a second signal representative thereof, and (c) a memory device (67) in communication with at least one, and preferably both, of the aforementioned transducers 16 and 17 and which contains calibration information specific to the transducers.

Abstract translation: 本文提供了一种系统（10），用于监视传送到RF供电设备（13）的RF信号的谐波含量。 该系统包括（a）适于对RF信号的电压进行采样并输出代表其的第一信号的电压变换器（16），（b）适于对RF信号的电流进行采样的电流换能器（17） 输出代表其的第二信号，以及（c）与上述传感器16和17中的至少一个，优选两个通信的存储器件（67），并且其包含特定于换能器的校准信息。

公开(公告)号：US20060267821A1

公开(公告)日：2006-11-30

申请号：US11383009

申请日：2006-05-12

Applicant: Michael Gerding ,  Burkhard Schiek ,  Thomas Musch

Inventor： Michael Gerding ,  Burkhard Schiek ,  Thomas Musch

IPC: H03M3/00

CPC classification number: G01R19/2509 ,  G01R19/0053 ,  G01S7/292

Abstract: A sampling circuit for sequential sampling of a broadband periodic input signal having a field effect transistor as a nonlinear component to which a pulsed-shaped sampling signal is supplied, by which sampling is activated so that an output signal is produced. In this way, a sampling circuit is attained which is economical, technically durable and which can be used in a versatile and simple manner.

Abstract translation: 一种用于对具有场效应晶体管作为非线性分量的宽带周期性输入信号进行顺序采样的采样电路，脉冲形状的采样信号被提供给该非线性分量，通过该采样信号被激活以产生输出信号。 以这种方式，获得经济，技术上耐用的采样电路，并且可以以通用和简单的方式使用。

公开(公告)号：US06954087B2

公开(公告)日：2005-10-11

申请号：US10477575

申请日：2002-05-13

Applicant: Anne Ghis ,  Patrice Ouvrier-Buffet ,  Nathalie Rolland ,  Aziz Benlarbi-Delai

Inventor： Anne Ghis ,  Patrice Ouvrier-Buffet ,  Nathalie Rolland ,  Aziz Benlarbi-Delai

IPC: G01R19/00 ,  G01R19/25 ,  H03K17/00 ,  H03K5/00

CPC classification number: G01R19/2509 ,  G01R19/0053

Abstract: A sampling device for high frequency signal that propagates in a propagation structure. The device comprises a first stage (A1, I1, C1) to sample a first signal at a first time t1 and at least one second stage (A2, I2, C2) in series with the first stage to take a second sample representative of the first sample, starting from the first sample, taken at a second time t2 greater than t1, the life-time of the second sample being longer than the life-time of the first sample.

Abstract translation: 用于在传播结构中传播的高频信号的采样装置。 该装置包括在第一时间t 1和与第一阶段串联的至少一个第二阶段（A 2，I 2，C 2）对第一信号进行采样的第一级（A 1，I 1，C 1） 取第一个样品的第二个样品，从第一个样品开始，在大于t 1的第二个时间t 2拍摄，第二个样品的寿命比第一个样品的寿命长。

公开(公告)号：US06927599B2

公开(公告)日：2005-08-09

申请号：US10720568

申请日：2003-11-24

Applicant: Jianhong Ju ,  Pravas Pradhan

Inventor： Jianhong Ju ,  Pravas Pradhan

IPC: G01R19/00 ,  G01R31/02 ,  G06F11/00 ,  H03K19/007

CPC classification number: G01R19/0053

Abstract: A system and method are described for receiving differential currents in a current mode circuit. When conditions occur where the receiver inputs are floating, undriven, shorted together, or one or both shorted to ground, the output of the system remains stable. Diode connected MOS transistors receive the unequal currents, and current mirrors amplify the received currents. Those amplified mirrored currents are differentially amplified and converted into voltage signals suitable of typical computer and logic systems. The current mode differential nature of the invention provides high common mode current and voltage noise immunity. A threshold for the unequal currents helps provide high differential current and voltage noise immunity.

Abstract translation: 描述了用于在电流模式电路中接收差分电流的系统和方法。 当接收器输入浮动，未驱动，短路在一起，或者一个或两个短路到地的情况下，系统的输出保持稳定。 二极管连接的MOS晶体管接收不等电流，电流镜放大接收电流。 这些放大的镜像电流被差分放大并转换成适合于典型计算机和逻辑系统的电压信号。 本发明的电流模式差分性质提供了高共模电流和电压噪声抗扰度。 不平等电流的阈值有助于提供高差分电流和电压噪声抗扰度。

公开(公告)号：US20050110515A1

公开(公告)日：2005-05-26

申请号：US10720568

申请日：2003-11-24

Applicant: Jianhong Ju ,  Pravas Pradhan

Inventor： Jianhong Ju ,  Pravas Pradhan

IPC: G01R19/00 ,  G01R31/02 ,  G06F11/00 ,  H03K19/007

CPC classification number: G01R19/0053

Abstract: A system and method are described for receiving differential currents in a current mode circuit. When condition occur where the receiver inputs are floating, undriven, shorted together, or one or both shorted to ground, the output of the system remains stable. Diode connected MOS transistors receive the unequal currents, and current mirrors amplify the received currents. Those amplified mirrored currents are differentially amplified and converted into voltage signals suitable of typical computer and logic systems. The current mode differential nature of the invention provides high common mode current and voltage noise immunity. A threshold for the unequal currents helps provide high differential current and voltage noise immunity.

Abstract translation: 描述了用于在电流模式电路中接收差分电流的系统和方法。 当接收机输入浮动，未驱动，短路在一起，或者一个或两个短路接地时，系统的输出保持稳定。 二极管连接的MOS晶体管接收不等电流，电流镜放大接收电流。 这些放大的镜像电流被差分放大并转换成适合于典型计算机和逻辑系统的电压信号。 本发明的电流模式差分性质提供了高共模电流和电压噪声抗扰度。 不平等电流的阈值有助于提供高差分电流和电压噪声抗扰度。

公开(公告)号：US20050104610A1

公开(公告)日：2005-05-19

申请号：US10986639

申请日：2004-11-12

Applicant: Timothy Lesher ,  Brad Miller ,  Clarence Cowan ,  Michael Simmons ,  Frank Gray ,  Cynthia McDonald

Inventor： Timothy Lesher ,  Brad Miller ,  Clarence Cowan ,  Michael Simmons ,  Frank Gray ,  Cynthia McDonald

IPC: G01R1/18 ,  G01R31/28 ,  G01R31/02

CPC classification number: G01R1/18 ,  G01R19/0053 ,  G01R31/2886 ,  G01R31/2889 ,  H01B11/206

Abstract: A cable includes an inner conductor, an inner dielectric, and a guard conductor, where the inner dielectric is between the inner conductor and the guard conductor. The cable also includes an outer dielectric, and a shield conductor, where the outer dielectric is between the guard conductor and the shield conductor. The cable further includes an additional layer of material between the outer dielectric and the shield conductor of suitable composition for reducing triboelectric current generation between the outer dielectric and the shield conductor to less than that which would occur were the outer dielectric and the shield conductor to directly adjoin each other.