| Patents for G01R 29 - Arrangements for measuring or indicating electric quantities not covered by groups (11,937) |
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| 06/15/1999 | US5912554 Electromagnetic radiation measuring apparatus for high frequency analysis of radiation produced by a circuit board |
| 06/10/1999 | WO1999028754A1 Method and apparatus for detecting p-static interference source |
| 06/09/1999 | CA2255215A1 A lattice gas automaton capable of modelling three-dimensional electromagnetic fields |
| 06/08/1999 | US5910775 Phasing and indicator arrangements for switchgear or the like |
| 06/08/1999 | US5910729 Variable wave impedance generator for testing electric and magnetic field calibration of electronic equipment |
| 06/02/1999 | DE19826236A1 Electromagnetic field strength calculation device |
| 06/02/1999 | DE19753186A1 Testing method for TEM cell or absorber chamber |
| 06/02/1999 | CN1218555A Method and apparatus for space-charge measurement in cables using pulsed electroacoustic method |
| 06/01/1999 | US5909661 Method and apparatus for decomposing drive error signal noise sources |
| 05/27/1999 | DE19749986A1 Metal-encapsulated, gas-insulated HV switchgear apparatus |
| 05/26/1999 | EP0917765A2 Swept frequency device test |
| 05/26/1999 | CN1217472A Electric field sensor |
| 05/25/1999 | US5907426 Stabilizing device for optical modulator |
| 05/25/1999 | US5907243 Measuring circuit for sensing ionisation within a cylinder of a combustion engine |
| 05/20/1999 | WO1999025166A1 Radio wave absorbing materials, radio wave absorber, and radio wave anechoic chamber and the like made by using the same |
| 05/19/1999 | EP0917290A2 Pulse generator |
| 05/18/1999 | US5905755 Method and circuit for data regeneration of a data stream |
| 05/14/1999 | WO1999023483A1 Electrostatic force detector with cantilever for an electrostatic force microscope |
| 05/12/1999 | EP0642673B1 Method and arrangement for measuring the condition of a receiver antenna |
| 05/11/1999 | US5903159 Microwave sensor for sensing discharge faults |
| 05/11/1999 | CA2182356C Time interval measurement system and a method applied therein |
| 05/06/1999 | EP0913685A2 Contactless system for detecting microdefects on electrostatographic members |
| 05/04/1999 | US5901114 Circuit for measuring the cut-off time of an electronic system |
| 04/29/1999 | WO1999021018A1 Compact sensing apparatus having reduced cross section and methods of mounting same |
| 04/28/1999 | EP0910801A1 Process for standardising the intensity of optical sensors used for measuring periodically oscillating electric or magnetic field intensities |
| 04/20/1999 | US5896035 Electric field measuring apparatus |
| 04/14/1999 | EP0904546A3 Measurement system including antenna |
| 04/14/1999 | EP0845110A4 Lightning locating system |
| 04/13/1999 | CA2120094C Direct phase digitizing apparatus and method |
| 04/08/1999 | DE19816192A1 Electromagnetic wave analysis instrument to analyze electromagnetic wave expanding from multilayer substrate |
| 04/08/1999 | DE19742055A1 Vorrichtung zum Testen von Schaltungsplatinen An apparatus for testing circuit boards |
| 04/06/1999 | US5892363 Electrostatic field measuring device based on properties of floating electrodes for detecting whether lightning is imminent |
| 04/01/1999 | WO1999015910A1 Device for testing circuit boards |
| 03/31/1999 | EP0904546A2 Measurement system including antenna |
| 03/31/1999 | EP0879420A4 Improved charge rate electrometer |
| 03/31/1999 | EP0839324B1 System and method for measuring the total electron content of the ionosphere |
| 03/30/1999 | US5889435 On-chip PLL phase and jitter self-test circuit |
| 03/30/1999 | CA2087626C Frequency domain polarimeter |
| 03/24/1999 | EP0902896A1 Electro-optical and magneto-optical sensing apparatus and method for characterizing free-space electromagnetic radiation |
| 03/23/1999 | US5886534 Millimeter wave sensor for on-line inspection of thin sheet dielectrics |
| 03/23/1999 | US5886528 Electrostatic voltage metering apparatus |
| 03/18/1999 | WO1999013697A1 Nonflammable radio wave absorber |
| 03/18/1999 | WO1999013347A1 Antenna tester |
| 03/18/1999 | WO1998054584A3 Two port handheld vector network analyzer with frequency monitor mode |
| 03/18/1999 | DE19740027A1 Electrostatic separation of mixture of different nonconductive materials |
| 03/17/1999 | CN2311003Y Spheric air electric field apparatus |
| 03/11/1999 | WO1998040693A3 Time interval measurement system incorporating a linear ramp generation circuit |
| 03/09/1999 | CA2153181C Signal level measuring apparatus |
| 03/04/1999 | DE19839645A1 Magnetic field detector |
| 03/03/1999 | EP0899575A2 A method and device for measuring the phase sequence and rotational direction of a three-phase system |
| 03/03/1999 | EP0728322B1 Microscopic electromagnetic radiation transmitter or detector |
| 03/02/1999 | US5877619 Battery-operated hand field-strength meter and method of null balancing same |
| 02/25/1999 | WO1999009424A1 Electric arc monitoring systems |
| 02/25/1999 | WO1999009422A1 Electric arc monitoring systems |
| 02/23/1999 | US5875180 Satellite telephone interference avoidance system |
| 02/23/1999 | CA2076791C Charged area (cad) image loss control in a tri-level imaging apparatus |
| 02/18/1999 | WO1998052286A3 Swept frequency device test |
| 02/16/1999 | US5872455 In a static electrical discharge dissipation system |
| 02/16/1999 | CA2135326C Prediction of indoor electromagnetic wave propagation for wireless indoor system engineering |
| 02/11/1999 | DE19832805A1 Magnetic field measurement device for measuring currents flowing in conductors |
| 02/10/1999 | EP0706715A4 Electrical charge transfer apparatus |
| 02/04/1999 | WO1999005534A1 Device for analysing a single pulse with variable step |
| 02/04/1999 | DE19727516A1 Method for determining internal noise in digital circuit |
| 02/03/1999 | CN1206835A Signal power measuring equipment |
| 02/02/1999 | CA2154881C A system and method for compression and decompression of audio signals |
| 01/28/1999 | WO1999004275A1 Microwave reflectometer and method, and microwave oven equipped therewith |
| 01/28/1999 | DE19806874A1 Electronic circuit simulator |
| 01/28/1999 | DE19728322A1 Testing TEM or screening cells, absorption chambers etc. for electromagnetic compatibility |
| 01/28/1999 | DE19726231A1 Verfahren zur Drehsinnerfassung in Drehstromnetzen, Anwendung dieses Verfahrens und zugehöriges digitales Überlastrelais Method for detection of rotation in three-phase systems, application of this method and corresponding digital overload relay |
| 01/27/1999 | CN1206466A Antenna adapter |
| 01/26/1999 | US5864581 Apparatus for measuring the signal transit time of a digital transmission device |
| 01/26/1999 | US5864319 Testing a built-in windshield antenna |
| 01/26/1999 | US5864107 Switchgear assembly |
| 01/21/1999 | WO1999003211A1 Method for estimating the angular dispersion of a signal transmitted by a transmitter to a receiver and corresponding receiver |
| 01/21/1999 | CA2265440A1 Method for estimating the angular dispersion of a signal transmitted by a transmitter to a receiver and corresponding receiver |
| 01/20/1999 | EP0891654A2 Apparatus and method for measuring time intervals with very high resolution |
| 01/19/1999 | US5861882 Integrated test and measurement means employing a graphical user interface |
| 01/19/1999 | US5861753 Electromagnetic compatibility (EMC) test cell |
| 01/14/1999 | WO1998041879A3 Measurement system including antenna |
| 01/13/1999 | EP0891049A1 Method for the estimation of the angular spread of a signal transmitted from a transmitter to a receiver and corresponding receiver |
| 01/13/1999 | EP0890845A2 S/N measuring circuit and method |
| 01/13/1999 | EP0890108A2 Field sensor and device and process for measuring electric and/or magnetic fields |
| 01/13/1999 | CN1204774A Electronic measuring method for offset interference using comparing interference source and received interfering signal |
| 01/12/1999 | US5859597 Helicopter electronic system for detecting electric power lines during landing |
| 01/12/1999 | US5859530 Process for determining the phase sequence in a three-phase network (rotary current network) |
| 01/07/1999 | EP0889411A2 On-chip PLL phase and jitter self-test circuit |
| 01/05/1999 | US5856809 Static antenna tuning and antenna voltage measurement |
| 12/30/1998 | WO1998059253A1 Method for detecting the direction of rotation in three-phase networks, use of said method and pertaining digital overload relay |
| 12/29/1998 | US5854996 Logic signal extraction |
| 12/23/1998 | CN2301733Y Current type pulse width modulator tester |
| 12/16/1998 | EP0884854A2 Microwave detector |
| 12/16/1998 | EP0884690A2 Computer aided simulation method for determining the electromagnetic field of an object |
| 12/16/1998 | EP0815660B1 Process for monitoring the quantisation quality in digital radio or television transmission systems |
| 12/16/1998 | EP0771422B1 Process for measuring phase jitter of a data signal |
| 12/15/1998 | US5850140 Electric field sensor having sensor head with unbalanced electric field shield to shield branched optical waveguides against an applied electric field |
| 12/10/1998 | DE19825263A1 Period counting circuit |
| 12/09/1998 | EP0642672B1 Arrangement for measuring the condition of a receiver antenna |
| 12/08/1998 | US5848322 Series capacitor ink sensor for monitoring liquid developer material |
| 12/08/1998 | US5847570 Low jitter trigger circuit for electro-optic probing apparatus |
| 12/03/1998 | WO1998054584A2 Two port handheld vector network analyzer with frequency monitor mode |