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11. 发明申请

US20140016487A1 TEST SYSTEM TO ESTIMATE THE UPLINK OR DOWNLINK QUALITY OF MULTIPLE USER DEVICES USING A MEAN OPINION SCORE (MOS) 审中-公开
标题翻译：使用平均评分（MOS）估算多个用户设备的上行链路或下行链路质量的测试系统
公开(公告)号：US20140016487A1
公开(公告)日：2014-01-16
申请号：US13549266
申请日：2012-07-13
申请人： Jheroen Pieter Dorenbosch
发明人： Jheroen Pieter Dorenbosch
IPC分类号： H04W24/00
CPC分类号： H04W24/06 , H04M3/2236 , H04M3/28
摘要： A test system is provided to test both voice and video quality of the connection for a large number of mobile phones, tablets, laptops or other user transmit/receive devices from a central location. The quality can be expressed as a Mean Opinion Score (MOS) and the uplink and downlink connection quality can be separately estimated. The system allows the use of media fragments that are characteristic of an end user and allows video data to be measured at the time and location that the user typically makes calls.
摘要翻译：提供了一个测试系统，用于从中央位置测试大量手机，平板电脑，笔记本电脑或其他用户发送/接收设备的连接的语音和视频质量。质量可以表示为平均意见得分（MOS），并且可以单独估计上下行链路连接质量。系统允许使用作为最终用户特征的媒体片段，并允许在用户通常进行呼叫的时间和位置测量视频数据。

12. 发明授权

US08630591B1 Calibration methods for RF receiver gain ranging systems 有权
标题翻译： RF接收机增益测距系统的校准方法
公开(公告)号：US08630591B1
公开(公告)日：2014-01-14
申请号：US13193321
申请日：2011-07-28
申请人： Jon Martens , Thomas Albrecht
发明人： Jon Martens , Thomas Albrecht
IPC分类号： H04B17/00
CPC分类号： H04B17/0085 , H04B17/21 , H04B17/309
摘要： Systems and methods are provided for calibrating a receiver in an RF system having a device under test (DUT) configured to receive at least one input signal and output at least one response signal. A method comprises setting a drive level of the RF system and making a pair of measurements at the drive level. Each of the measurements is made in a different gain state at a receiver. The method also comprises calculating a calibration factor for the receiver which is a ratio of the pair of measurements. These systems and methods can be used to calibrate receivers while preserving vector information and removing dynamic match effects.
摘要翻译：提供了用于校准具有被配置成接收至少一个输入信号并输出至少一个响应信号的被测器件（DUT）的RF系统中的接收器的系统和方法。一种方法包括设置RF系统的驱动电平并在驱动级别进行一对测量。每个测量在接收器处以不同的增益状态进行。该方法还包括计算接收机的校准因子，该校准因子是该对测量的比率。这些系统和方法可用于校准接收机，同时保留矢量信息和消除动态匹配效果。

13. 发明申请

US20120256616A1 HAND-HELD MICROWAVE SPECTRUM ANALYZER WITH OPERATION RANGE FROM 9 KHz TO OVER 20 GHz 审中-公开
标题翻译：手持式微波分析仪，操作范围从9 KHz到20 GHz
公开(公告)号：US20120256616A1
公开(公告)日：2012-10-11
申请号：US13448203
申请日：2012-04-16
申请人： Russell A Brown , Cindy Robinson
发明人： Russell A Brown , Cindy Robinson
IPC分类号： G01R23/165
CPC分类号： G01R23/16 , H01P1/2135 , H03H7/463
摘要： A spectrum analyzer that provides from below 9 kHz to above 20 GHz operation range while remaining hand-held. The spectrum analyzer includes an integrated precision stand-alone step attenuator that does not rely on printed circuit board (PCB) mounted circuit elements within the signal path. Further, a PIN diplexing switch separates signals into different base-band and highband paths. The baseband path includes a pre-amplifier for low frequency signals, while the higher frequency bands may not necessarily include a pre-amplifier. The highband path incorporates multi-throw MMIC PIN diode switches to selectively filter different bands of input signals.
摘要翻译：频谱分析仪，从低于9 kHz到20 GHz以上的工作范围，同时保持手持。频谱分析仪包括一个不依赖印刷电路板（PCB）的电路元件在信号路径内的集成精密独立步进衰减器。此外，PIN双工切换将信号分离成不同的基带和高带路径。基带路径包括用于低频信号的前置放大器，而较高频带可能不一定包括前置放大器。高频路径集成了多掷MMIC PIN二极管开关，以选择性地滤除不同频带的输入信号。

14. 发明授权

US08169993B2 Method and apparatus to estimate wireless base station signal quality over the air 有权
标题翻译：估计无线基站信号质量的方法和装置
公开(公告)号：US08169993B2
公开(公告)日：2012-05-01
申请号：US12104269
申请日：2008-04-16
申请人： Kee-dyi Huang , Maximilian Maung , Bernard Justus Olshausen , Jeffrey Abramson Heath , Derek Truesdale
发明人： Kee-dyi Huang , Maximilian Maung , Bernard Justus Olshausen , Jeffrey Abramson Heath , Derek Truesdale
IPC分类号： H04J1/00
CPC分类号： H04B17/309 , H04B17/327 , H04B17/345
摘要： The quality of the signal from a base station is measured and adjusted for distortion due to multipath and due to signals from neighboring co-channel base stations. The signal quality is measured conventionally by determining Rho or EVM and then Rho or EVM are adjusted. To adjust the signal the process includes the steps of: (a) sampling a received CDMA base station signal in a particular frequency channel, calculating the total received power to provide a reference value for subsequent normalization; (b) demodulating the received signal and constructing an ideal reference signal; (c) correlating between the ideal reference signal and received signal to determine a Rho value, or calculating the ratio of the difference between ideal and received signal to the ideal signal to obtain EVM; (d) performing a self cross correlation to separate signals from the sampled received signal on different delay paths, and determining a multipath power value x as a total power of signals on non-dominant ones of the delay paths; (e) performing a code correlation pilot scan of the sampled signal to determine strengths of signals from neighboring co-channel base stations; (f) summing the power levels of the neighboring co-channel base station signals to provide a total pilot pollution power y; and (g) calculating an adjusted Rho or EVM by removing x and y from the total received power.
摘要翻译：测量和调整来自基站的信号的质量，以及由于多路径引起的失真以及来自相邻同频道基站的信号。传统上通过确定Rho或EVM测量信号质量，然后调整Rho或EVM。为了调整信号，该过程包括以下步骤：（a）在特定频率信道中对接收到的CDMA基站信号进行采样，计算总接收功率以提供用于随后归一化的参考值; （b）解调接收信号并构建理想的参考信号; （c）将理想参考信号与接收信号相关以确定Rho值，或计算理想信号与接收信号之差与理想信号的比值以获得EVM; （d）执行自相互相关以在不同的延迟路径上分离来自采样的接收信号的信号，以及将多路径功率值x确定为非优先级延迟路径上的信号的总功率; （e）执行采样信号的码相关导频扫描以确定来自相邻同频道基站的信号的强度; （f）对相邻同频道基站信号的功率电平进行求和，以提供总导频污染功率y; 和（g）通过从总接收功率中移除x和y来计算经调整的Rho或EVM。

15. 发明授权

US08159208B2 Hand-held microwave spectrum analyzer with operation range from 9 KHz to over 20 GHz 有权
标题翻译：手持式微波频谱分析仪，工作范围从9KHz到20GHz以上
公开(公告)号：US08159208B2
公开(公告)日：2012-04-17
申请号：US12341758
申请日：2008-12-22
申请人： Russell A. Brown , Cindy Robinson
发明人： Russell A. Brown , Cindy Robinson
IPC分类号： G01R23/14
CPC分类号： G01R23/16 , H01P1/2135 , H03H7/463
摘要： A spectrum analyzer is provided that includes components to achieve from below 9 kHz to above 20 GHz operation range while remaining hand-held. Components of the spectrum analyzer include an integrated precision stand-alone step attenuator that does not rely on printed circuit board (PCB) mounted circuit elements within the signal path. Further, a PIN diplexing switch separates signals into different base-band and highband paths. The baseband path includes a pre-amplifier for low frequency signals, while the higher frequency bands may not necessarily include a pre-amplifier. The baseband path further provides improved broadband termination of its 1st mixer IF port by incorporating a new quadrature-coupled directional (QCD) filter that includes a ring resonator. An inexpensive air dielectric multi-cavity baseband filter is also used to suppress 2nd mixer IF images. The highband path incorporates multi-throw MMIC PIN diode switches to selectively filter different bands of input signals. At least three total 1st mixers are used to increase operation bandwidth. A phase locked loop providing a 1st LO to the 1st mixers is created that uses a divide-by-two frequency divider in cascade with a sampler-type frequency downconverter. The output of the 1st LO is frequency doubled and filtered to increase the frequency range of the highband signal path.
摘要翻译：提供了一种频谱分析仪，其中包括从低于9 kHz到20 GHz以上工作范围内实现的组件，同时保持手持式。频谱分析仪的组件包括集成精密独立步进衰减器，其不依赖于在信号路径内安装的印刷电路板（PCB）的电路元件。此外，PIN双工切换将信号分离成不同的基带和高带路径。基带路径包括用于低频信号的前置放大器，而较高频带可能不一定包括前置放大器。基带通道还通过并入包括环形谐振器的新的正交耦合方向（QCD）滤波器，进一步提供其第一混频器IF端口的改进的宽带终端。廉价的空气介质多腔基带滤波器也用于抑制第二混频器IF图像。高频路径集成了多掷MMIC PIN二极管开关，以选择性地滤除不同频带的输入信号。使用至少三个总共第一混频器来增加操作带宽。创建了向第一混频器提供第一LO的锁相环，其使用与采样器型频率下变频器级联的二分频分频器。第一LO的输出频率加倍并滤波，以增加高频信号路径的频率范围。

16. 发明申请

US20110013733A1 VARIABLE GAIN CONTROL FOR HIGH SPEED RECEIVERS 有权
标题翻译：高速接收机的可变增益控制
公开(公告)号：US20110013733A1
公开(公告)日：2011-01-20
申请号：US12505413
申请日：2009-07-17
申请人： Jon S. Martens , Helen Chau , David A. Rangel-Guzman , Peter M. Kapetanic , Dan Levasseur
发明人： Jon S. Martens , Helen Chau , David A. Rangel-Guzman , Peter M. Kapetanic , Dan Levasseur
IPC分类号： H04L27/08
CPC分类号： H03G3/3068
摘要： A high speed receiver is provided using two parallel processing paths to enable rapid variable gain control. The parallel processing paths include a first processing path using a high resolution Discrete Fourier Transform (DFT), and a second processing path using a reduced DFT requiring fewer samples than the high resolution DFT. An initial sample of the data is processed using the second processing path with the reduced DFT by comparing a Fourier transform of the initial sample with predetermined threshold values. As a result of the comparison of the Fourier transform of the initial sample with the predetermined threshold values, a gain determination block determines whether a requirement exists for gain ranging. If gain ranging is needed, the gain of the data signal is adjusted and the gain ranging process repeats.
摘要翻译：使用两个并行处理路径提供高速接收机，以实现快速可变增益控制。并行处理路径包括使用高分辨率离散傅里叶变换（DFT）的第一处理路径，以及使用与高分辨率DFT相比需要较少样本的减少的DFT的第二处理路径。通过将初始样本的傅立叶变换与预定阈值进行比较，使用具有减小的DFT的第二处理路径来处理数据的初始样本。作为初始样本的傅里叶变换与预定阈值的比较的结果，增益确定块确定是否存在增益测距的要求。如果需要增益测距，则调整数据信号的增益，并重复增益测距过程。

17. 发明授权

US07872467B2 Miniature RF calibrator utilizing multiple power levels 有权
标题翻译：微型RF校准器利用多种功率级别
公开(公告)号：US07872467B2
公开(公告)日：2011-01-18
申请号：US12707899
申请日：2010-02-18
申请人： Donald Anthony Bradley
发明人： Donald Anthony Bradley
IPC分类号： G01R23/165
CPC分类号： H03L1/022
摘要： A small light-weight battery operated calibrator device provides a precise sine wave output for use in calibration of test equipment, such as a RF Power Meter or a Spectrum Analyzer. The calibration device includes two power levels, one −40 dBm and one 0 dBm. The purpose of the two power levels is to obtain a slope and offset for correction of the RF power measuring device being calibrated. Operation indication LED lights are provided to indicate which of the two powers are in use, and if battery power is below acceptable levels. Miniature low power components including a crystal oscillator and a divide by 2 integrated circuit that generates a precise square wave and a low pass filter for converting the square wave into a precise sine wave allows the calibrator to be battery operated and stored as a calibration component.
摘要翻译：小型轻巧的电池校准器设备提供精确的正弦波输出，用于校准测试设备，如RF功率计或频谱分析仪。校准装置包括两个功率电平，一个-40 dBm和一个0 dBm。两个功率电平的目的是获得正在校准的RF功率测量装置的校正的斜率和偏移。提供操作指示LED指示灯，以指示两个电源中的哪一个正在使用，以及电池电量是否低于可接受的水平。包括晶体振荡器和产生精确方波的2个集成电路的微型低功率组件和用于将方波转换成精确的正弦波的低通滤波器允许校准器被电池操作并存储为校准组件。

18. 发明申请

US20100141238A1 MINIATURE RF CALIBRATOR UTILIZING MULTIPLE POWER LEVELS 有权
标题翻译：微型RF校准器利用多个功率电平
公开(公告)号：US20100141238A1
公开(公告)日：2010-06-10
申请号：US12707899
申请日：2010-02-18
申请人： Donald Anthony Bradley
发明人： Donald Anthony Bradley
IPC分类号： G01R23/165
CPC分类号： H03L1/022
摘要： A small light-weight battery operated calibrator device provides a precise sine wave output for use in calibration of test equipment, such as a RF Power Meter or a Spectrum Analyzer. The calibration device includes two power levels, one −40 dBm and one 0 dBm. The purpose of the two power levels is to obtain a slope and offset for correction of the RF power measuring device being calibrated. Operation indication LED lights are provided to indicate which of the two powers are in use, and if battery power is below acceptable levels. Miniature low power components including a crystal oscillator and a divide by 2 integrated circuit that generates a precise square wave and a low pass filter for converting the square wave into a precise sine wave allows the calibrator to be battery operated and stored as a calibration component.
摘要翻译：小型轻巧的电池校准器设备提供精确的正弦波输出，用于校准测试设备，如RF功率计或频谱分析仪。校准装置包括两个功率电平，一个-40 dBm和一个0 dBm。两个功率电平的目的是获得正在校准的RF功率测量装置的校正的斜率和偏移。提供操作指示LED指示灯，以指示两个电源中的哪一个正在使用，以及电池电量是否低于可接受的水平。包括晶体振荡器和产生精确方波的2个集成电路的微型低功率组件和用于将方波转换成精确的正弦波的低通滤波器允许校准器被电池操作并存储为校准组件。

19. 发明申请

US20100105347A1 APPARATUS TO DETECT INTERFERENCE IN WIRELESS SIGNALS 有权
标题翻译：检测无线信号干扰的设备
公开(公告)号：US20100105347A1
公开(公告)日：2010-04-29
申请号：US12258172
申请日：2008-10-24
申请人： Kee-dyi Huang , Bhaskar Thiagarajan , Randy L. Lundquist , Vaidyanathan Venugopal
发明人： Kee-dyi Huang , Bhaskar Thiagarajan , Randy L. Lundquist , Vaidyanathan Venugopal
IPC分类号： H04B1/10 , H04B15/00
CPC分类号： H04B1/1036 , H04J11/0023 , H04L27/0006 , H04L27/2628
摘要： An apparatus to detect interference in wireless signals, comprising an antenna for receiving a wireless signal; and wherein the apparatus is operable to identify a dominant waveform in the received signal; subtract the dominant waveform from the received signal to create a modified received signal; and repeat the above steps, recursively substituting the modified received signal for the received signal, until all adjusted reference waveforms have been subtracted.
摘要翻译：一种用于检测无线信号中的干扰的装置，包括：用于接收无线信号的天线; 并且其中所述装置可操作以识别接收信号中的主要波形; 从接收信号中减去主波形以产生经修改的接收信号; 并重复上述步骤，递归地将修改的接收信号替换为接收信号，直到所有调整的参考波形都被减去。

20. 发明申请

US20090234603A1 SYSTEM AND METHOD FOR ACCELERATING AN ELECTRICAL MEASUREMENT INSTRUMENT USING A GRAPHICAL PROCESSING UNIT 审中-公开
标题翻译：使用图形处理单元加速电气测量仪器的系统和方法
公开(公告)号：US20090234603A1
公开(公告)日：2009-09-17
申请号：US12050015
申请日：2008-03-17
申请人： Karam Michael Noujeim
发明人： Karam Michael Noujeim
IPC分类号： G01R13/00
CPC分类号： G01R19/2506
摘要： An electrical measurement instrument comprises an electrical measurement component, a computer to receive measurement data from the electrical measurement component, a central processing unit, one or more graphical processing units, a graphical processing unit programming interface to control the one or more graphical processing units, and a graphical processing unit-based mathematical library accessible to the graphical processing unit programming interface. The one or more graphical processing units perform processing of at least a portion of the measurement data.
摘要翻译：电测量仪器包括电测量部件，用于从电测量部件接收测量数据的计算机，中央处理单元，一个或多个图形处理单元，用于控制一个或多个图形处理单元的图形处理单元编程接口，以及基于图形处理单元的数学库，可用于图形处理单元编程接口。一个或多个图形处理单元执行至少一部分测量数据的处理。

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