| Patents for G01R 31 - Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere (152,264) |
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| 03/13/1990 | US4908568 Mechanical probe for optical measurement of electrical potentials |
| 03/13/1990 | US4907701 Apparatus for inspecting the appearance of semiconductor devices |
| 03/08/1990 | WO1990002432A1 Battery with charge control system |
| 03/08/1990 | WO1990002341A1 Apparatus and method for identifying conductors |
| 03/08/1990 | WO1990002340A1 Circuit testing |
| 03/08/1990 | WO1990002325A1 Method of and apparatus for testing optical sensor based control apparatus |
| 03/07/1990 | EP0357532A2 Improvements in performance sensing for integrated circuit chips |
| 03/07/1990 | EP0357516A2 Semiconductor static memory device |
| 03/07/1990 | EP0357440A2 Electro-optic sampling system clock and stimulus pattern generator |
| 03/07/1990 | EP0357439A2 High frequency test head using electro-optics |
| 03/07/1990 | EP0357438A2 Ultra-high-speed digital test system using electro-optic signal sampling |
| 03/07/1990 | EP0356999A2 Memory tester |
| 03/07/1990 | EP0356967A2 Pin electronics device having a phase adjustment function for IC testers and phase adjustment method therefor |
| 03/07/1990 | EP0356538A1 Arrangement in data processing system for system initialization and reset |
| 03/07/1990 | CN2054168U Portable multipurpose lineman's detector |
| 03/07/1990 | CN1040268A Multifunctional circuit tester for motor driven vehicle |
| 03/07/1990 | CN1007090B Printed circuit board function testing system |
| 03/06/1990 | US4907230 Apparatus and method for testing printed circuit boards and their components |
| 03/06/1990 | US4906970 Vehicle on-board diagnosing system |
| 03/06/1990 | US4906939 Device for automatically ascertaining capacitor breakdown voltage |
| 03/06/1990 | US4906938 Power circuit locater |
| 03/06/1990 | US4906937 Method and a device for fault location in the event of a fault on a power transmission line |
| 03/06/1990 | US4906922 Voltage mapping device having fast time resolution |
| 03/06/1990 | US4906055 Voltage level judging device |
| 03/06/1990 | US4906019 Motor vehicle collision sensing device |
| 03/06/1990 | CA1266511A1 Apparatus for detecting degradation of an arrester |
| 02/28/1990 | EP0356365A2 Method and apparatus for detecting faults in differential current switching logic circuits |
| 02/28/1990 | EP0356347A1 System for automatic control of the explosive medium of a direct current source of a storage battery |
| 02/28/1990 | EP0355461A2 Monitoring device for electric storage battery and configuration therefor |
| 02/28/1990 | EP0355255A2 Diagnostic plug |
| 02/28/1990 | EP0355197A1 Voltage probe for the stepwise optical display of a voltage, and process for producing it |
| 02/28/1990 | EP0355145A1 Device for injecting an electromagnetic signal into an electric lead |
| 02/28/1990 | EP0355128A1 Automated laminography system for inspection of electronics |
| 02/28/1990 | CN2053758U Liquid crystal test pencil |
| 02/27/1990 | US4905261 For continuity testing of windows |
| 02/27/1990 | US4905241 Logic module for generating unequiprobable/random patterns for integrated circuits |
| 02/27/1990 | US4905240 Semi-custom-made integrated circuit device |
| 02/27/1990 | US4905183 Pattern generator having plural pattern generating units executing instructions in parallel |
| 02/27/1990 | US4904946 Method for evaluating insulating films |
| 02/27/1990 | US4904935 Electrical circuit board text fixture having movable platens |
| 02/27/1990 | US4904934 Testing apparatus for semiconductor devices |
| 02/27/1990 | US4904933 Integrated circuit probe station |
| 02/27/1990 | US4904883 Semiconductor integrated circuit having a DC test function |
| 02/27/1990 | US4904067 Selection device |
| 02/27/1990 | CA1266333A1 Plug board with concentric grounding belt for testing integrated circuits |
| 02/27/1990 | CA1266301A1 Detection of high resistance faults in electric power supply network |
| 02/22/1990 | WO1990001704A1 System for measuring partial discharges |
| 02/22/1990 | WO1990001670A1 Milliohm impedance monitoring apparatus and method |
| 02/22/1990 | DE3828268A1 Circuit arrangement for the high voltage testing of coils |
| 02/22/1990 | DE3827959A1 Test set for the functional testing of electronic modules |
| 02/22/1990 | DE3823989A1 Regulator for the rapid determination of the characteristic curve of non-linear voltage generators |
| 02/21/1990 | EP0355078A2 Hand-held tester for the input/output ports of a data processor |
| 02/21/1990 | CN2053346U Four-purpose electricity test pencil |
| 02/21/1990 | CN2053345U Multipurpose electricity test pencil |
| 02/21/1990 | CN2053344U Digital voltage test pencil |
| 02/20/1990 | US4903270 Apparatus for self checking of functional redundancy check (FRC) logic |
| 02/20/1990 | US4903267 Method of generating test data |
| 02/20/1990 | US4903266 Memory self-test |
| 02/20/1990 | US4903199 Method of increasing the speed of test program execution for testing electrical characteristics of integrated circuits |
| 02/20/1990 | US4902986 Phased locked loop to provide precise frequency and phase tracking of two signals |
| 02/20/1990 | US4902969 Automated burn-in system |
| 02/20/1990 | US4902968 Connector terminal checking tool |
| 02/20/1990 | US4902967 Scanning electron microscopy by photovoltage contrast imaging |
| 02/20/1990 | US4902966 Method and apparatus for operating a scanning microscope |
| 02/20/1990 | US4902963 Method and arrangement for recording periodic signals with a laser probe |
| 02/20/1990 | US4902916 Identification of defects in emitter-coupled logic circuits |
| 02/20/1990 | US4902910 Semiconductor device |
| 02/20/1990 | US4902786 Phenylazonaphthol or naphthylazonaphthol compounds containing a fibre-reactive aminophenylamino-substituted halogen-s-triazinylamino group and a fibre-reactive group of the vinylsulfone series, suitable as dyestuffs |
| 02/20/1990 | US4902632 Method of preventing superficial electrical discharges in chips of semiconductor devices during testing |
| 02/20/1990 | US4901572 Method and apparatus for measuring wedge |
| 02/20/1990 | CA1266096A1 Fully programmable linear feedback shift register |
| 02/15/1990 | DE3827456A1 Dreifach-kompaktmessinstrument zum messen des reifendrucks, der reifenprofiltiefe und der batterieleistung bei fahrzeugen Triple-compact measuring instrument for measuring the mature pressure, the tire tread depth and the battery power at vehicles |
| 02/14/1990 | EP0354269A1 Circuitry for monotoring the contact resistance of a potentiometer |
| 02/14/1990 | EP0354214A1 Process for determining the electrical duration of signal paths. |
| 02/14/1990 | CN2052906U Mini and small detector for electric field |
| 02/14/1990 | CN2052905U Trouble alarm for on-load automatic voltage-regulating transformer |
| 02/14/1990 | CN1039660A Circuit for measuring capacity of battery |
| 02/14/1990 | CN1039659A Abnormality diagnosing system and method for high voltage power apparatus |
| 02/13/1990 | US4901315 Integrated data and timing circuitry for automatic circuit tester |
| 02/13/1990 | US4901259 Asic emulator |
| 02/13/1990 | US4901255 Method and apparatus for evaluating quadrature encoders |
| 02/13/1990 | US4901221 Graphical system for modelling a process and associated method |
| 02/13/1990 | US4901070 Pressure monitoring system with isolating means |
| 02/13/1990 | US4901025 Fault diagnosis system for electronic devices on automobiles |
| 02/13/1990 | US4901011 Carrier for transferring plate-like objects one by one, a handling apparatus for loading or unloading the carrier, and a wafer probing machine fitted with the handling apparatus for the wafer carrier |
| 02/13/1990 | US4901004 Apparatus and method for mapping the connectivity of communications systems with multiple communications paths |
| 02/13/1990 | US4901003 Telecommunications wiring test apparatus and method including two color display indicating correct wiring |
| 02/13/1990 | US4900948 Apparatus providing signals for burn-in of integrated circuits |
| 02/13/1990 | CA1265866A1 Method and apparatus for detecting a dead zone in the transfer function of a signal processing system |
| 02/08/1990 | WO1990001221A1 Monitoring device for electric storage battery and configuration therefor |
| 02/08/1990 | DE3826262A1 Measurement arrangement and method for measuring and controlling the charge level of an accumulator which develops gases during the charging process |
| 02/08/1990 | DE3153409C2 Process and arrangement for sensing analog signals |
| 02/07/1990 | EP0354124A1 Apparatus for checking the correct snapping of the pins of a multiple pin connector |
| 02/07/1990 | EP0354080A1 Adapter frame for testing printed circuits of high density |
| 02/07/1990 | EP0353530A1 Method for differentiating between electronic circuits with non-volatile memories |
| 02/07/1990 | EP0353497A1 Strand-to-strand short circuit tester |
| 02/07/1990 | EP0353331A1 Fault finding system with selective interactive communication |
| 02/07/1990 | CN2052539U Detector for protector of leakage of electricity |
| 02/06/1990 | US4899273 Circuit simulation method with clock event suppression for debugging LSI circuits |
| 02/06/1990 | US4899107 Discrete die burn-in for nonpackaged die |