Patents
Sitemap › G01 - Measuring; Testing › G01R - Measuring electric variables; Measuring magnetic variables › G01R 29 - Arrangements for measuring or indicating electric quantities not covered by groups
Patents for G01R 29 - Arrangements for measuring or indicating electric quantities not covered by groups (11,937)
12/2007
12/26/2007CN101093235A System for measuring internal impedance of noise source of switching power supply EMI based on Hilbert transform and current probe, and measuration method
12/26/2007CN100357747C Flexible test cable
12/26/2007CN100357746C Light modulation scattering vibrator and array thereof
12/25/2007US7313493 Method of retrieving phase and magnitude of weak ultra-short optical pulses using a stronger unknown pulse
12/25/2007US7313179 Minimizing windowing effects in particular for signal recovery
12/25/2007US7312409 Touch pad and position detecting circuit and method thereof
12/21/2007WO2007145748A2 Apparatus and method for sensing a time varying ionic current in an electrolytic system
12/21/2007WO2007144547A1 Electrooptic probe for vector measurement of an electromagnetic field
12/21/2007WO2007144546A1 Electrooptic probe for measuring temperature and electromagnetic field
12/21/2007CA2655447A1 Electrooptic probe for measuring temperature and electromagnetic field
12/21/2007CA2655034A1 Electrooptic probe for vector measurement of an electromagnetic field
12/20/2007DE19955564B4 W-CDMA Analysevorrichtung und Verfahren zur Anzeige der Ergebnisse der W-CDMA Analyse und Speichermedium mit einem Programm zur Anzeige der Ergbnisse der W-CDMA Analyse W-CDMA analysis apparatus and method for displaying the results of the W-CDMA analysis and storage medium having a program for displaying the result list of the W-CDMA analysis
12/19/2007CN101089637A Equipment for detecting cavity microwave leakage
12/19/2007CN101089496A Air conditioner and its distribution error detection method
12/19/2007CN100356182C Quick characterization method for charge density of buried oxide layer of SOI
12/18/2007US7310392 Method and apparatus for determining inter-symbol interference for estimating data dependent jitter
12/13/2007WO2006091810A3 Measuring components of jitter
12/13/2007US20070288184 Delay failure test circuit
12/13/2007US20070285322 Multichannel absorberless near field measurement system
12/12/2007EP1865311A1 Piezoelectric element inspection method, inspection device, and polarization processing method
12/12/2007CN200989933Y Electric line antitheft alarming device
12/12/2007CN200989927Y Long-distance digital nuclear phase system
12/12/2007CN200989926Y Radio digital nuclear phase system
12/12/2007CN200989925Y Strong magnetic field prealarming device
12/12/2007CN200989924Y Wireless hidden earphone detector for examination cheating
12/12/2007CN101088016A Systems, methods and apparatus for determining a radiated performance of a wireless device
12/12/2007CN100354636C Method for testing clock duty cycle and test circuit
12/12/2007CN100354632C Sensor for non-contacting electrostatic detector
12/11/2007US7308372 Phase jitter measurement circuit
12/06/2007US20070279067 Stray voltage detecting
12/06/2007US20070279037 Spectrometry Diagnostic Electronic Circuit and Associated Counting System
12/06/2007DE102006024507A1 Integrated circuit`s run-time error detecting method, involves testing whether run-time error is occurred in driven clock domain, and triggering production of clock signals through signal change in scan clock input
12/05/2007EP1861724A1 Method and device for determination of the phases in a multi-phase electrical system
12/05/2007CN200987070Y Phase lacking protection circuit for Intermediate voltage frequency-changing speed regulator
12/05/2007CN200986587Y Harmonic current and induction reactive power generator
12/05/2007CN101082645A High speed large-capacity multifunctional electronics multiple channels counting storage means
12/05/2007CN101082639A Standard pulse generator capable of simulating pulse measurement meter used by user
12/04/2007US7305403 Method and device for storing linked lists
12/04/2007US7305025 Measurement instrument and measurement method
12/04/2007US7304480 Radio mode selectivity block for a detector for detecting a buried current carrying conductor
12/04/2007US7303703 Nano-imprint system with mold deformation detector and method of monitoring the same
11/2007
11/29/2007US20070276617 Circuit analysis device allowing more accurate analysis of signal propagation delay in circuit representation of a highly abstract level
11/29/2007US20070273391 Loop Resistance Tester
11/29/2007DE19882434B4 Verfahren und Meßsystem zum Messen von Charakteristiken eines Antennensystems Procedures and measuring system for measuring characteristics of an antenna system
11/28/2007CN200982990Y USB testing device
11/28/2007CN100351635C 电磁波检测系统 Electromagnetic detection system
11/27/2007US7301325 Method and apparatus for creating performance limits from parametric measurements
11/22/2007WO2007132015A1 Method and apparatus for measuring the duty cycle or relative duty cycle of a digital signal
11/22/2007US20070271068 Method and Apparatus for Measuring the Relative Duty Cycle of a Clock Signal
11/22/2007US20070271052 Method and apparatus for measuring duty cycle based on data eye monitor
11/22/2007US20070271051 Method and apparatus for measuring the duty cycle of a digital signal
11/22/2007US20070268063 Signal Detector
11/22/2007US20070268011 Radio mode selectivity block for a detector for detecting a buried current carrying coductor
11/21/2007CN200979585Y A synchronous ratio and polarity testing device in multi-channels
11/21/2007CN200979584Y A signal microcomputer interlocking based dynamic transformer testing device
11/21/2007CN200979580Y A magnetron testing device
11/21/2007CN200979577Y A novel three-phase voltage open-phase detection circuit
11/21/2007CN200979576Y An electromagnetic radiation detector
11/21/2007CN101074975A Method for measuring thin-film piezoelectric coefficient d33
11/21/2007CN100350268C Device for testing radiation of handset
11/20/2007US7298151 Methods and apparatus for reducing thermal noise
11/15/2007US20070262794 On-die anti-resonance structure for integrated circuit
11/15/2007DE102006019759A1 Oscillator`s two-gate phase noises measuring method, involves canceling reference signal of generator by phase difference and supplying combined signal with noise portions of test objects to evaluate spectrum analyzer
11/15/2007CA2650105A1 Time lapse analysis with electromagnetic data
11/14/2007EP1854237A2 Measuring components of jitter
11/14/2007CN200976029Y Lightning radiation pulse synchronous recording trigger instrument
11/14/2007CN200976021Y Clamp for antenna directivity diagram test
11/13/2007US7295937 Method and system for determining noise components of an analog-to-digital converter
11/08/2007WO2007081368A3 Low power, wavelet-based spike detector
11/08/2007US20070257682 Potential sensor
11/08/2007CA2587965A1 Method and apparatus for open neutral fault detection
11/07/2007EP1766720B1 Gsm radiated sensitivity measurement technique
11/07/2007EP1389308B1 Method for evaluating electrical field levels in the near-zone of transmitting antennas
11/07/2007EP1026780B1 Antenna mirror surface measuring/adjusting device
11/07/2007CN101068109A Method and apparatus for correcting the duty cycle of a digital signal
11/07/2007CN101067636A Flexible test cable
11/07/2007CN101067635A Method and system for determinging digital signal duty cycle
11/07/2007CN100347926C Three-phase distributing balancing testing adjusting method for light system and light system distributing managing apparatus
11/06/2007US7292947 System and method of estimating phase noise based on measurement of phase jitter at multiple sampling frequencies
11/06/2007US7292044 Integrating time measurement circuit for a channel of a test card
11/01/2007WO2007123055A1 Testing apparatus, testing method, jitter filter circuit and jitter filtering method
11/01/2007WO2007123054A1 Calibration device, calibration method, tester, and test method
11/01/2007WO2007121996A1 Passive entry and/or passive go system and pertaining method of operation
11/01/2007WO2007067378A3 Calibration circuitry
10/2007
10/31/2007DE102006020422A1 Passive-Entry- und/oder Passive-Go-System sowie zugehöriges Betriebsverfahren Passive entry and / or passive go system and operating method thereof
10/31/2007DE102005061337B3 Phase-noise measuring signal`s frequency offset and/or frequency drift compensating method, involves determining frequency offset and/or drift by maximum-likelihood-estimator by minimizing error squares between phase characteristics
10/31/2007CN200968972Y Tunable test probe bracket
10/31/2007CN200968971Y Improved structure for field intensity meter
10/31/2007CN101065901A Spread frequency spectrum waveform generating circuit
10/31/2007CN101063703A Digital type alternating current-direct current partial discharge detecting method and device
10/30/2007US7289922 Jitter decomposition for high speed serial interfaces
10/25/2007WO2007118770A2 Method and apparatus for determining jitter and pulse width from clock signal comparisons
10/25/2007US20070247166 Electric potential measuring device and image forming apparatus
10/25/2007US20070247139 Method And System For Detecting The Phase Of Wiring Of An Unknown Phase Voltage Relative To A Reference Phase Voltage
10/25/2007US20070246849 Nano-imprint system with mold deformation detector and method of monitoring the same
10/25/2007DE102006020423B3 Verfahren sowie Schaltungsanordnung zur Feldstärkebestimmung Method and circuit arrangement for field strength determination
10/24/2007EP1848130A1 Communication system
10/24/2007EP1846983A2 Sensor for detecting hgh frequency signals
10/24/2007CN200965553Y Recording optical driver driven coil tester
10/24/2007CN101061387A Electric field sensing device
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