| Patents for G01R 23 - Arrangements for measuring frequencies; Arrangements for analysing frequency spectra (7,503) |
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| 05/23/2012 | CN102466763A 一种频谱超限测量方法和装置 Overrun of Spectral Method and apparatus for measuring |
| 05/23/2012 | CN102466762A 一种频谱分析仪的参数设置方法及装置 One kind of spectrum analyzer parameter setting method and apparatus |
| 05/23/2012 | CN102466761A 获取完成频谱数据的方法、装置与系统 Spectral data for the completion of the method, apparatus, and systems |
| 05/23/2012 | CN102466760A 频率测量装置 Frequency measuring device |
| 05/23/2012 | CN101893651B Method for detecting positive sequence, negative sequence, idle and harmonic currents of power supply system |
| 05/22/2012 | US8185358 Apparatus for measuring distortion power quality index and method of operating the apparatus |
| 05/22/2012 | US8183852 Method and apparatus for determining AC voltage waveform anomalies |
| 05/22/2012 | US8183528 Electromagnetic wave measuring apparatus, measurement method, a program, and a recording medium |
| 05/16/2012 | CN202221447U Pulse frequency measurement device |
| 05/16/2012 | CN102460190A Method and an arrangement for a mobile telecommunications network |
| 05/16/2012 | CN102457268A 32位捕获寄存器的实现方法 32 capture register implementations |
| 05/16/2012 | CN102456216A 频谱分析仪的图像数据构造方法及装置 Method and apparatus for image data structure of the spectrum analyzer |
| 05/16/2012 | CN102455798A 频谱分析仪的操作方法及装置 Spectrum analyzer operating method and apparatus |
| 05/16/2012 | CN102455384A 状态同步方法及装置 Method and apparatus for synchronizing state |
| 05/16/2012 | CN102455383A 频谱数据运算方法、装置及频谱分析仪 Spectral data computing method, apparatus and spectrum analyzer |
| 05/15/2012 | US8179148 Information detecting apparatus and method |
| 05/15/2012 | US8179120 Single level of metal test structure for differential timing and variability measurements of integrated circuits |
| 05/15/2012 | US8179118 Wide-bandwidth spectrum analysis of transient signals using a real-time spectrum analyzer |
| 05/15/2012 | US8179117 Pulse detection device and pulse detection method |
| 05/10/2012 | WO2012060883A2 Power grid failure prediction and detection |
| 05/10/2012 | US20120112763 Method for Detecting Small Delay Defects |
| 05/09/2012 | CN202217016U Radio altimeter centre frequency testing system |
| 05/09/2012 | CN102445683A Naive user signal sensing and locating method |
| 05/09/2012 | CN102445599A Frequency domain measuring method of array antenna directional pattern |
| 05/09/2012 | CN102445598A Signal generation for spectral measurements |
| 05/09/2012 | CN102445597A Harmonic measurement device |
| 05/09/2012 | CN102445596A Multi-channel frequency domain test and measurement instrument |
| 05/09/2012 | CN101865955B Method for measuring intrinsic Q value of film bulk acoustic resonator |
| 05/08/2012 | US8175830 Frequency estimation of rare events by adaptive thresholding |
| 05/03/2012 | WO2012056087A1 An apparatus for spectrum sensing and associated methods |
| 05/03/2012 | US20120105049 Synthesizer having adjustable, stable and reproducible phase and frequency |
| 05/03/2012 | US20120105048 System and method for space control and remote monitoring |
| 05/02/2012 | EP2446682A1 Spectrum sensing |
| 05/02/2012 | EP2446282A1 Method and an arrangement for a mobile telecommunications network |
| 05/02/2012 | CN202210124U Hardware double frequency measuring circuit device |
| 05/02/2012 | CN202210123U User electricity consumption information intelligent acquisition system |
| 05/02/2012 | CN102435849A Method for improving frequency measurement precision by using digital filter |
| 05/02/2012 | CN102435848A Comparison device for verifying capacity of phase noise in Ka wave band |
| 05/02/2012 | CN102435847A High-precision electrical parameter analyzer |
| 05/02/2012 | CN102435846A Multi-domain test and measurement instrument |
| 05/02/2012 | CN102435845A Harmonic energy metering method of Nuttall self-convolution weighted Fourier transform |
| 05/02/2012 | CN102435844A Sinusoidal signal phasor calculating method being independent of frequency |
| 05/02/2012 | CN102435843A Device and method for measuring multi-radio frequency |
| 05/02/2012 | CN102435842A Device for comparing double-mode frequency scales and measuring frequency stability |
| 05/02/2012 | CN102435830A Real-time wind power quality monitor |
| 05/01/2012 | US8170819 Systems and methods for measuring non-linear characteristics of a power amplifier |
| 05/01/2012 | US8169236 Frequency detection mechanism for a clock generation circuit |
| 04/26/2012 | US20120100810 Apparatus for Spectrum Sensing and Associated Methods |
| 04/25/2012 | CN102426293A 基于神经网络最小方均根的apf谐波检测系统及检测方法 Apf harmonic detection systems and neural network detection method based on the smallest root mean square |
| 04/25/2012 | CN102426292A 一种微波脉冲频率测量方法 A microwave pulse frequency measurement method |
| 04/25/2012 | CN101762745B 时基移相方法和装置 When the phase shift method and apparatus group |
| 04/25/2012 | CN101443666B 无基准时钟电路 No reference clock circuit |
| 04/19/2012 | WO2012050950A1 Digital frequency estimation based on quadratic forms |
| 04/19/2012 | WO2012049680A1 Wideband signal analyzer |
| 04/19/2012 | DE102010040034A1 Method for operating domestic appliance i.e. laundry dryer, for maintaining laundry items, involves defining parameter set for process sequence based on detection of hardware variants, and testing process sequence by parameter set |
| 04/19/2012 | DE102007043927B4 Verfahren und Vorrichtung zum asynchronen Abtasten kontinuierlicher, im Wesentlichen sinusförmiger Signale Method and apparatus for asynchronous scanning continuous, substantially sinusoidal signals |
| 04/19/2012 | CA2814461A1 Wideband signal analyzer |
| 04/18/2012 | EP2440944A2 System and method for representing a multi-tone signal |
| 04/18/2012 | CN202196121U 灵活的广域电网谐波同步监测系统 Flexible harmonic synchronous WAN Monitoring System |
| 04/18/2012 | CN202196120U Device for detecting harmonics and inter-harmonics |
| 04/18/2012 | CN102419398A Phase noise capability verification comparison apparatus applied to Ku and K wave band ranges |
| 04/18/2012 | CN102419396A 用于生成门控密度位图的方法和设备 Method and apparatus for generating gating density bitmaps |
| 04/18/2012 | CN102419389A 测试和测量仪器中的时域测量 Test and measurement instruments in the time-domain measurements |
| 04/18/2012 | CN101558318B 信号分析器和频域数据产生方法 Frequency-domain data signal analyzer and the method of producing |
| 04/17/2012 | US8159209 Digital signal delay measuring circuit and digital signal delay measuring method |
| 04/17/2012 | US8159208 Hand-held microwave spectrum analyzer with operation range from 9 KHz to over 20 GHz |
| 04/12/2012 | US20120089004 Method for data oscillator detection using frictionally damped harmonic oscillators |
| 04/12/2012 | DE102010048091A1 Verfahren und Vorrichtung zur Ermittlung einer Frequenz eines Signals Method and apparatus for determining a frequency of a signal |
| 04/11/2012 | CN202189094U 谐振接地电网脱谐度自动测量装置 Resonance grounding system automatic measuring device off Degree |
| 04/11/2012 | CN102412914A 基于pxi总线的射频实时测量矢量分析插卡式结构模块 Based on real-time measurements of RF pxi bus card structure vector analysis module |
| 04/11/2012 | CN102411101A 一种基于频变特性的变压器谐波损耗计算方法 Transformer Harmonic loss calculation method based on frequency-dependent characteristics |
| 04/11/2012 | CN102411092A 测试和测量仪器中的时域触发 Test and measurement instruments in the time domain trigger |
| 04/11/2012 | CN102411091A 检测多路信号稳定度的装置和检测方法 Apparatus and detection method for detecting the stability of the multi-channel signal |
| 04/11/2012 | CN101788605B 无线接收式微电子机械微波频率检测系统及其制备方法 Wireless receiver type MEMS microwave frequency detection system and its preparation method |
| 04/10/2012 | US8155890 Exhaust gas analysis method and exhaust gas analysis apparatus |
| 04/10/2012 | US8155639 System and method for computer noteboook electromagnetic compatibility analysis |
| 04/10/2012 | US8154307 Electronic circuit comprising a device to measure phase noise of an oscillating and/or resonant device |
| 04/05/2012 | WO2012044975A1 Method for measurement of total harmonic distortion |
| 04/05/2012 | WO2012042036A1 Method and device for converting time-varying signals acquired over a large number of recording channels |
| 04/05/2012 | WO2012041481A1 Method and arrangement for frequency determination |
| 04/05/2012 | US20120084035 System and method for frequency measurement based on quadratic forms |
| 04/05/2012 | US20120081105 Signal Generation For Spectral Measurements |
| 04/05/2012 | US20120081104 Method for measurement of total harmonic distortion |
| 04/05/2012 | DE102011115308A1 Signalerzeugung für spektrale Messungen Signal generation for spectral measurements |
| 04/04/2012 | CN102405415A 在高精度长期频率/定时测量中的噪声抑制技术 Noise in high-precision long-term frequency / timing measurements suppression technology |
| 04/04/2012 | CN102401858A 一种电网电压基波分量及谐波分量的检测方法 A grid voltage detection methods fundamental component and harmonic components |
| 04/04/2012 | CN102401857A 频率测量装置和电子设备 Frequency measuring means and the electronic device |
| 04/04/2012 | CN102401856A 一种基于模糊聚类方法的工频电压信号实时频率测量方法 A fuzzy clustering method based on real-time power frequency voltage signal frequency measurement method |
| 04/03/2012 | US8150643 Method of detecting system function by measuring frequency response |
| 04/03/2012 | US8150633 Seafood physical characteristic estimation system and method |
| 03/29/2012 | WO2012038126A1 Method and system for determining the origin of passive intermodulation products |
| 03/29/2012 | DE102010046903A1 Measuring system for measuring electromagnetic radiation of measured object, has measuring receiver recording highest number of measurement values and corresponding time points at each frequency of frequency spectrum over alignments |
| 03/29/2012 | DE102010046880A1 Verfahren und Anordnung zur Frequenzbestimmung Method and system for frequency determination |
| 03/29/2012 | CA2753666A1 Method and apparatus for sub-harmonic protection |
| 03/28/2012 | EP2434300A1 Multi-domain test and measurement instrument |
| 03/28/2012 | EP2434299A1 Multi-domain test and measurement instrument |
| 03/28/2012 | CN102393488A Harmonic analysis method |
| 03/27/2012 | US8145443 Fourier transform-based phasor estimation method and apparatus capable of eliminating influence of exponentially decaying DC offsets |
| 03/27/2012 | US8143961 Technique for detecting crystals |
| 03/27/2012 | US8143958 Systems and methods for self testing a voltage controlled oscillator in an open loop configuration |