| 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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| 06/11/1991 | US5023544 Extended input and testing of electrical components for onsertion machines |
| 06/11/1991 | US5023485 Method and circuitry for testing a programmable logic device |
| 06/11/1991 | US5023471 Testable input/output circuit for a load decoupled by a transformer |
| 06/11/1991 | US5023188 Method of determining the depth of trenches formed in a semiconductor wafer |
| 06/06/1991 | DE3940070A1 Construction and testing system for wiring looms - has connection to cable via multiplexer with processor control of supply to cable |
| 06/06/1991 | DE3939890A1 Current imaging of three=phase rectifier-fed motor - is corrected by removal of signal component due to current transformer demagnetisation after phase current extinction |
| 06/06/1991 | CA2022802A1 Fast battery charging system and method |
| 06/05/1991 | EP0430864A2 Method of making electrical interconnections on a universal substrate and device therefor |
| 06/05/1991 | EP0430844A2 Chip identification method for use with scan design systems and scan testing techniques |
| 06/05/1991 | EP0430823A1 Permanent monitoring system for the electric conduction of a network |
| 06/05/1991 | EP0430475A2 Calibration verification and correction method |
| 06/05/1991 | EP0430372A1 Test system integrated on a substrate and a method for using such a test system |
| 06/05/1991 | EP0430354A2 Detection circuit of the current in an MOS type power transistor |
| 06/05/1991 | EP0430128A2 Circuit for testability |
| 06/05/1991 | EP0429739A1 Method for photoemission inspection of via studs in integrated circuit packages |
| 06/05/1991 | EP0429728A1 Logic circuit |
| 06/05/1991 | EP0429673A1 Test pattern generator |
| 06/05/1991 | EP0247141B1 System for testing and repairing printed circuit boards |
| 06/05/1991 | CN1012759B Device for indicating charge status of battery |
| 06/04/1991 | US5021734 In-line coaxial surge protector and test fixture |
| 06/04/1991 | US5021733 Burn-in apparatus |
| 06/04/1991 | US5021732 Burn-in testing equipment having an instrumentation control module |
| 06/04/1991 | US5020998 Test socket |
| 06/04/1991 | US5020219 Method of making a flexible tester surface for testing integrated circuits |
| 06/01/1991 | CA2011477A1 Process for producing electrical connections on a universal substrate and apparatus for the same |
| 05/30/1991 | WO1991007834A1 Communications line testing |
| 05/30/1991 | WO1991007644A1 Method for measuring mechanical torque |
| 05/29/1991 | EP0429043A2 Semiconductor wafer evaluation apparatus |
| 05/29/1991 | EP0428681A1 Improved electrical connectors and ic chip tester embodying same |
| 05/29/1991 | EP0428601A1 System for measuring partial discharges. |
| 05/29/1991 | EP0225904B1 Improvements in or relating to apparatuses for testing cables |
| 05/29/1991 | DE3939304A1 Rotating field testing method for three phase motors - using test head consisting of three concentrically wound coils mounted on core assembly |
| 05/29/1991 | CN2078006U Live line detection warning device for transmission-distribution switch cubicle |
| 05/29/1991 | CN2078005U Multipurpose alternating-direct current high-low voltage electricity-measuring device |
| 05/29/1991 | CN1051793A Device for determing charge condition of battery |
| 05/28/1991 | US5020010 Method for preparing and evaluating measurement specificatons for an electronic circuit |
| 05/28/1991 | US5020009 Method and apparatus for preparing measurement specifications of electronic circuits |
| 05/28/1991 | US5019980 General purpose avionics display monitor |
| 05/28/1991 | US5019772 Test selection techniques |
| 05/28/1991 | US5019001 Method for manufacturing liquid crystal display device |
| 05/28/1991 | US5018981 Contact equipped with a bypass element |
| 05/28/1991 | US5018763 System for vehicle safety devices |
| 05/28/1991 | CA1284523C Uniaxially electrically conductive articles with porous insulating substrate |
| 05/23/1991 | CA2003670A1 Method and apparatus for microwave transient spectroscopy of deep levels in semiconductors |
| 05/22/1991 | EP0428504A2 Programmable logic device with programming verification means and method therefor |
| 05/22/1991 | EP0428503A2 Programmable logic device with programmable output selection means |
| 05/22/1991 | EP0428465A2 Method and apparatus for detecting oscillator stuck faults in a level sensitive scan design (LSSD) system |
| 05/22/1991 | EP0428160A1 Automatic conveyance system |
| 05/22/1991 | CN2077551U Position finder for short circuit of power line |
| 05/21/1991 | US5018145 IC tester |
| 05/21/1991 | US5018144 Logic performance verification and transition fault detection |
| 05/21/1991 | US5018043 Removable modular control device for a contactor apparatus |
| 05/21/1991 | US5017910 Intermittent fault detection system |
| 05/21/1991 | US5017908 Security system for sensing leakage of fluid from containers |
| 05/21/1991 | US5017877 Watthour meter open potential circuit detecting device |
| 05/21/1991 | US5017865 Coaxial microwave device test fixture |
| 05/21/1991 | US5017864 Apparatus for the inspection of printed circuit boards on which components have been mounted |
| 05/21/1991 | US5017863 Electro-emissive laser stimulated test |
| 05/21/1991 | US5017809 Method and apparatus for program verification of a field programmable logic device |
| 05/21/1991 | CA1284376C Testing of rf diode phase shifters |
| 05/21/1991 | CA1284356C Diagnostic meter base |
| 05/16/1991 | WO1991006872A1 Procedure for testing generators |
| 05/15/1991 | EP0427611A1 Chip capacitors testing and sorting apparatus |
| 05/15/1991 | EP0427551A2 A process and apparatus for testing the condition of an insulating system |
| 05/15/1991 | EP0427328A2 Method of manufacturing integrated circuits as well as integrated circuit |
| 05/15/1991 | EP0427135A2 Circuit for sensing output distortion, in particular of final stages of audio devices |
| 05/15/1991 | CN2077131U Multipurpose testing alarm for electrician |
| 05/14/1991 | US5016135 Power supply incorporating circuit breaker and fault detection circuit |
| 05/14/1991 | US5015959 Sense wire signal enhancements for insulation defect detection |
| 05/14/1991 | US5015958 Elongate sensors comprising conductive polymers, and methods and apparatus using such sensors |
| 05/14/1991 | US5015950 Method and apparatus for determining thermal resistance and structural integrity of coatings on conducting materials by monitoring electrical conductance of the underlying material upon localized heating of the overlying coating |
| 05/14/1991 | US5015886 Programmable sequential-code recognition circuit |
| 05/14/1991 | US5015885 Reconfigurable programmable interconnect architecture |
| 05/14/1991 | US5015544 Battery with strength indicator |
| 05/14/1991 | US5015337 Vapor recovery system |
| 05/14/1991 | US5014549 Test apparatus for air intake manifold heater system |
| 05/14/1991 | CA1284181C Probe for testing electronic components |
| 05/08/1991 | EP0426655A2 Programmable logic device with configurable output enable means |
| 05/08/1991 | EP0426281A2 Enhanced counter/timer behavior in a logic analyzer |
| 05/08/1991 | EP0426182A2 Automatic high speed optical inspection apparatus and method |
| 05/08/1991 | EP0426166A2 Automatic high speed optical inspection system |
| 05/08/1991 | EP0426165A2 Circuit board inspecting apparatus |
| 05/08/1991 | EP0425528A1 A real-time signal processing circuit |
| 05/08/1991 | DE3937115A1 Functional test of thyristor for triggering overcurrent safety switch - involves coupling test voltage into drive device for short periods without triggering switch |
| 05/08/1991 | DE3936988A1 Motor vehicle diagnostic equipment - uses signal coupler already installed in vehicle with at least measuring and/or stimuli lead connected |
| 05/08/1991 | CN2076681U Device for measuring various specification, model ic |
| 05/08/1991 | CN2076680U Display tube for electric leakage |
| 05/08/1991 | CN2076679U Multifunctional test pencil |
| 05/07/1991 | US5014330 Pattern position recognizing apparatus |
| 05/07/1991 | US5014228 Method and apparatus for calibrating linear delay lines |
| 05/07/1991 | US5014226 Method and apparatus for predicting the metastable behavior of logic circuits |
| 05/07/1991 | US5014157 Apparatus for controlling and testing an electric installation |
| 05/07/1991 | US5014043 Current sensing |
| 05/07/1991 | US5014003 Conductive pattern for electric test of semiconductor chips |
| 05/04/1991 | WO1991006870A1 Cryogenic probe station |
| 05/04/1991 | CA2072132A1 Cryogenic probe station |
| 05/02/1991 | EP0425416A2 A self testable boundary logic circuit |
| 05/02/1991 | EP0425374A1 Apparatus for testing a bus consisting of two pairs of conductors |
| 05/02/1991 | EP0425087A2 Method and apparatus for selecting, orienting and testing electronic components |
| 05/02/1991 | EP0425080A2 Method and digital data acquisition instrument with a counter/timer for time intervals, in particular in a logic analyzer |