Patents
Patents for G01R 29 - Arrangements for measuring or indicating electric quantities not covered by groups (11,937)
04/2004
04/06/2004US6718301 System for measuring speech content in sound
04/06/2004US6717392 Signal generator
04/01/2004US20040062301 Jitter measurement apparatus and jitter measurement method
04/01/2004US20040061488 Module, system and method for testing a phase locked loop
04/01/2004DE10344377A1 Electromagnetic field measurement and analysis method for evaluation of the effects of natural and artificial atmospheric electromagnetic fields on living organisms so that harmful effects can be countered or mitigated
04/01/2004DE10243244A1 Antenna system reflection method measurement method in which in two measurement cycles a signal is transmitted to and reflected from the antenna with the measurements used in an equation to eliminate an interference contribution
03/2004
03/30/2004US6714898 Flexible noise figure measurement apparatus
03/25/2004WO2004025836A1 Method and device for detecting period length fluctuations of periodic signals
03/25/2004WO2003102610A3 Method and device for detection in the frequency range, based on a time range measurement
03/25/2004US20040057495 Microwave power sensor and method for manufacturing the same
03/24/2004CN1143281C Jitter measuring method utilizing A/D conversion and device
03/18/2004WO2004023152A1 Synthetic rf detection system and method
03/17/2004CN1142441C 辐射和传导测量系统 Radiation and conduction measurement system
03/11/2004US20040047241 Wearable wrist watch means having function for detecting unlawful recorded radio audio/video signals
03/11/2004US20040046541 Synthetic RF detection system and method
03/11/2004DE10316568A1 Jitter-Messschaltung Jitter measurement circuit
03/10/2004EP1373030A4 Occupant sensor
03/10/2004EP1140576A4 Occupant detection system
03/10/2004EP1140575A4 Occupant detection system
03/10/2004EP1140574A4 Occupant detection system
03/10/2004CN2606362Y Simple thunderstorm predicting devices
03/10/2004CN1141589C Early Warming device of main-frequency voltage
03/09/2004US6703824 Low-cost power measurement device for a plurality of motors
03/04/2004US20040044488 Jitter measurement circuit for measuring jitter of measurement target signal on the basis of sampling data string obtained by using ideal cyclic signal
03/04/2004DE10333249A1 Magnetic angle sensor has two magnetic transducers over toothed magnetic disc to give differential output to flip flop circuit
03/04/2004DE10239965A1 Device for optical or acoustic indication of 3-phase device connection consistent with phase rotation direction e.g. for motor, has part for attaching in front of opening in housing for 3-phase device and/or connector
03/03/2004CN1479104A Measuring vibration circuit based on sample data string obtained by ideal period signal
03/02/2004US6701269 Jitter measurement extrapolation and calibration for bit error ratio detection
03/02/2004US6700388 Methods and apparatus for detecting electromagnetic interference
03/02/2004US6700385 Apparatus and method for detection and measurement of environmental parameters
02/2004
02/26/2004WO2003087857A3 Method and device for picking-up and processing interference fields and interference beams
02/26/2004US20040039552 Signal sampling with sampling and reference paths
02/26/2004US20040039540 Noise measuring device and method, recording medium
02/26/2004US20040036494 Device testing
02/26/2004US20040036483 Liquid-medium immersed MEMs devices
02/24/2004US6697766 System and method for detecting and characterizing gaussian pulses
02/24/2004US6697744 Inquiry method of the source which generates electromagnetic wave
02/24/2004US6696845 Noise evaluation circuit for IC tester
02/24/2004US6696834 Magnetic field probe having a shielding layer to protect lead wires with an isolating layer
02/24/2004US6696828 Integrated circuit and lot selection system therefor
02/19/2004WO2003056349A9 Antenna measurement system
02/19/2004US20040034490 Observation and/or failure inspection apparatus, method and program therefor
02/18/2004EP1389308A1 Method for evaluating electrical field levels in the near-zone of transmitting antennas
02/18/2004CN2603942Y Hypersensitive object electrostatic detection instrument
02/18/2004CN1138980C Electrostatic force detector with cantilever for electrostatic force microscope and its detecting method
02/17/2004US6693845 Semiconductor device having PLL-circuit
02/17/2004US6693536 Electromagnetic radiation monitor
02/17/2004US6693439 Apparatus and methods for measuring noise in a device
02/17/2004US6693432 Apparatus and method for detection and measurement of environmental parameters
02/12/2004WO2004013644A1 Antenna measurement device and method
02/12/2004US20040030511 Method for analyzing power noise and method for reducing the same
02/12/2004DE10233596A1 Phase angle measurement method for two high frequency sinusoidal signals, with applications in measurements of physical values, wherein a beat signal is generated by interference between the two digitized signals
02/10/2004US6691076 Electromagnetic field intensity calculating method and a storage medium for storing a program for executing the method
02/10/2004US6690151 Phase detection circuit
02/05/2004WO2004011079A2 Method of treating disorders by altering ion flux across cell membranes with electric fields
02/05/2004US20040021463 Magnetic sensor, side-opened tem cell, and apparatus using such magnetic sensor and side-opened tem cell
02/05/2004CA2493585A1 Method of treating disorders by altering ion flux across cell membranes with electric fields
02/04/2004CN2602383Y Static electricity scouting instrument of object
02/04/2004CN1473268A 吸收功率测量装置 Absorbed power measurement device
02/03/2004US6687650 Indoor environment design system, indoor environment evaluation system, indoor environment design method, and indoor environment evaluation method
02/03/2004US6687629 Apparatus for and method of measuring a jitter
02/03/2004US6686997 Apparatus and a method for pulse detection and characterization
02/03/2004US6686818 Reverberation chamber tuner and shaft with electromagnetic radiation leakage device
02/03/2004US6686748 Procedure arrangement and sensor for testing of the H-F tightness of the junction between two adjacent parts
02/03/2004US6686743 Apparatus for measuring the static charge of flowable solids
01/2004
01/29/2004US20040019458 Jitter measuring system in high speed data output device and total jitter measuring method
01/29/2004US20040017115 Apparatus for measuring specific absorption rate based on near magnetic field for use in radio apparatus
01/29/2004DE10302362A1 Verfahren und Vorrichtung zum Bestimmen einer Rauschgröße eines elektronischen Meßobjektes Method and apparatus for determining a noise figure of an electronic measurement object
01/28/2004EP1385014A2 Signal sampling with sampling and reference paths
01/28/2004CN1136456C Optical electric sensor
01/27/2004US6683469 Regulable test integrated circuit system for signal noise and method of using same
01/22/2004WO2004008159A2 Conductor tracing system
01/22/2004US20040012529 Protable radio terminal testing apparatus using single self-complementary antenna
01/21/2004EP1381874A2 Method and device for contacless testing of non-fitted antennae
01/21/2004CN1135394C Super high frequency reflectometer and its method and microwave oven equiped with the same
01/20/2004CA2157431C Voltage pulse acquisition channel and partial discharge measure process and system using said channel
01/15/2004US20040008018 Electrical circuit tracing and identifying apparatus and method
01/14/2004CN1468475A Electric field intensity detecting circuit and limiter amplifier
01/14/2004CN1135028C Method for measuring standing wave ratio in mobile communication system
01/13/2004US6677769 Scanning electromagnetic-field imager with optical-fiber-based electro-optic field-mapping system
01/13/2004CA2274473C Microwave active solid state cold/warm noise source
01/08/2004WO2004004161A1 Low power interference signal code power (iscp) measurement
01/08/2004US20040004568 Microwave holographic measuring method and apparatus
01/08/2004DE10228062A1 Verfahren und Messeinrichtung zum Erfassen einer Gegenspannung oder eines Gegenstroms in einem mehrphasigen Drehstromsystem The method and measuring device for sensing a reverse voltage or a reverse current in a polyphase three-phase system
01/08/2004CA2490812A1 Low power interference signal code power (iscp) measurement
01/07/2004CN1465983A Electromagnetic interference determination device
01/02/2004EP1376143A2 Apparatus for displaying the distribution of an electric property of an electronic appliance
01/02/2004EP1374455A1 Polarized wave measuring apparatus, and antenna characteristic measuring apparatus and radio wave measuring apparatus using the same
01/02/2004EP1373030A1 Occupant sensor
12/2003
12/31/2003WO2004001990A1 Power detecting circuit
12/31/2003WO2003079512A3 Apparatus and method for identifying cable phase in a three-phase power distribution network
12/25/2003US20030236107 Calibration system for array antenna receiving apparatus
12/24/2003WO2003040732A3 Impedance stabilization network for determining the electromagnetic interfering radiation of a modem
12/24/2003DE20309717U1 Benutzervorrichtung, die Störsignal-Codeleistungsmessungen mit niedriger Leistung vornimmt User device performs the interference signal code power measurements with low power
12/24/2003DE20309716U1 Basisstation, die Störsignal-Codeleistungs-Messungen mit niedriger Leistung vornimmt Base station performs the interference signal code power measurements with low power
12/23/2003US6667632 Potential sensor for detecting voltage of inspection target at non-contact condition to attain higher speed of inspection
12/23/2003US6667610 Apparatus and method for identifying cable phase in a three-phase power distribution network
12/18/2003WO2003104825A1 A method for determining field radiation levels for a radiating device
12/18/2003WO2003019207A9 Ultra-wide band pulse dispersion spectrometry method and apparatus providing multi-component composition analysis
12/18/2003US20030233124 Methods of treating disorders by altering ion flux across cell membranes with electric fields
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