Patents
Sitemap › G01 - Measuring; Testing › G01R - Measuring electric variables; Measuring magnetic variables › 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
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)
10/1989
10/11/1989EP0336563A2 Compensating system for inspecting potentially warped printed circuit boards
10/11/1989EP0336444A2 Semiconductor integrated circuit device having improved input/output interface circuit
10/11/1989EP0336381A2 Method for charging and simultaneously testing the state of a nickel-cadmium accumulator
10/11/1989EP0336036A1 Cable failure detection system
10/10/1989US4873686 Test assist circuit for a semiconductor device providing fault isolation
10/10/1989US4873485 Electro-optic signal measurement
10/10/1989US4873459 Programmable interconnect architecture
10/10/1989US4873452 Collision detector for a vehicle
10/10/1989US4873436 Nondestructive readout of a latent electrostatic image formed on an insulating material
10/10/1989US4872835 Hot chuck assembly for integrated circuit wafers
10/10/1989CA1262291A1 Method and apparatus for measuring the ion implant dosage in a semiconductor crystal
10/10/1989CA1262268A1 Infrared signaling system for detecting a predetermined state in a high voltage device
10/05/1989WO1989009535A1 Control of the manufacture of a printed circuit
10/05/1989WO1989009533A1 Disconnection detection apparatus for lamps
10/05/1989WO1989009512A1 Method of calculating magnetic flux of an induction motor
10/05/1989WO1989009493A1 Burn-in pads for tab interconnect structures
10/05/1989WO1989009450A1 Method and apparatus for evaluating quadrature encoders
10/05/1989WO1989009415A1 System for locating breaking point of transmission line using artificial satellite
10/05/1989WO1989009414A1 Apparatus and method for mapping the connectivity of communications systems with multiple communications paths
10/05/1989WO1989009410A1 Test fixture for tab circuits and devices
10/05/1989WO1989009147A1 Electronic device
10/04/1989EP0335444A1 Method and apparatus for measuring the lifetime on P-N semiconductor junctions by photovoltaic effect
10/04/1989EP0335351A1 Method for monitoring unusual signs in gas-charged apparatus and gas-charged apparatus including unusual sign monitor
10/04/1989EP0335269A1 Magnetic flux operation method for induction motor
10/04/1989EP0334940A1 Method and apparatus for isolating faults in an antenna system
10/04/1989CN2045500U Dynamic parameter detector for ac generator set
10/04/1989CN2045499U Power supply equipment (system) for testing asynchronous motor
10/04/1989CN2045498U Light-emitting diode test pencil
10/04/1989CN2045496U Liquid crystal test pencil capable of measuring voltage range
10/03/1989US4872169 Hierarchical scan selection
10/03/1989US4872168 Integrated circuit with memory self-test
10/03/1989US4871972 Apparatus for detecting faulty power line insulator
10/03/1989US4871971 High impedance fault analyzer in electric power distribution networks
10/03/1989US4871965 Environmental testing facility for electronic components
10/03/1989US4871963 Method and apparatus for testing EPROM type semiconductor devices during burn-in
10/03/1989US4871956 Method and apparatus for cell monitoring and control
10/03/1989US4870865 Device for testing formation of connection
09/1989
09/28/1989DE3808977A1 Method and device for measuring an angular offset
09/28/1989DE3808559A1 Method and device for monitoring the power limit of a starter battery
09/27/1989EP0334310A1 Method and a device for fault location in the event of a fault on a power transmission line
09/27/1989EP0334273A2 A fixture for measuring the static characteristics of microwave 3-terminal active components
09/27/1989EP0188477B1 Device for controlling the charge state of rechargeable batteries
09/27/1989CN2045117U High-precision digital high-resistance meter
09/27/1989CN2045116U Protective earthing tester
09/26/1989US4870675 Remote testing of metallic loops with a trans hybrid signal
09/26/1989US4870397 System for producing graphic displays and programs for generating same
09/26/1989US4870357 LCD error detection system
09/26/1989US4870355 Thermal fixture for testing integrated circuits
09/26/1989US4870354 Apparatus for contacting a printed circuit board with an array of test probes
09/26/1989US4870352 Contactless current probe based on electron tunneling
09/26/1989US4870347 Universal master breakout unit for testing avionic systems
09/26/1989US4870346 Distributed pseudo random sequence control with universal polynomial function generator for LSI/VLSI test systems
09/26/1989US4870345 Semiconductor intergrated circuit device
09/26/1989US4870344 Method for inspecting integrated circuits or other objects
09/26/1989US4870295 Photoconductive circuit element pulse generator
09/26/1989US4869636 Handler for IC packages
09/26/1989CA1261921A1 Fault location in a power supply network
09/26/1989CA1261918A1 Detection of bar wedging in stator slots
09/26/1989CA1261422A1 Cuvette belt faulty seal detector
09/26/1989CA1261418A1 Test clip for plcc
09/26/1989CA1261019A1 Checking system of warning lamp of a vehicle
09/26/1989CA1260540A1 Apparatus for measuring the length of an electrical line
09/26/1989CA1260536A1 Automatic circuit tester control system
09/26/1989CA1260079A1 Shift register latch arrangement for enhanced testability in differential cascode switch circuit
09/26/1989CA1260061A1 Diagnostic apparatus for an electric generator seal oil system
09/21/1989WO1989008851A1 Device for testing high-pressure lamps and components used therewith
09/21/1989WO1989008850A1 Method of and apparatus for testing multi-wire cable
09/21/1989WO1989008839A1 Electronic battery testing device
09/21/1989DE3807772A1 Einrichtung zum kontrollieren der parameter von elektrischen schaltungen Means for controlling the parameters of electrical circuits
09/21/1989DE3807438A1 Method and arrangement for measuring the temporal relationship between signals
09/20/1989EP0333412A1 Circuit breakers test device
09/20/1989EP0333241A2 Integrated monolithic circuit comprising a test bus
09/20/1989EP0333139A1 Energization fault detection system
09/20/1989EP0332652A1 Method and apparatus for locating leaks in a multiple layer geomembrane.
09/20/1989EP0225337B1 Device for the detection of corona discharges in alternating current overhead lines
09/20/1989CN1035720A Portable, micro-computer controlled, multifunctional tester of protective relay
09/19/1989US4868785 Block diagram editor system and method for controlling electronic instruments
09/19/1989US4868509 Method and apparatus for detecting magnetron power supply failure
09/19/1989US4868507 Microcomputer controlled resistance fault locator circuit
09/19/1989US4868506 Defect detection using intermodulation signals
09/19/1989US4868505 High voltage impulse wave generator for testing equipment
09/19/1989US4868493 Device for the functional testing of integrated circuits and a method for operating the device
09/19/1989US4868492 Method for contactless testing of conducting paths in a substrate using photo-assisted tunneling
09/19/1989US4868490 Method and apparatus for sheet resistance measurement of a wafer during a fabrication process
09/19/1989US4868489 Device to detect the depassivation of an integrated circuit
09/19/1989US4868467 Self-calibrating scanner motor driver apparatus and method
09/19/1989US4868414 Scan-path self-testing circuit for logic units
09/19/1989US4868413 Testable passgate logic circuits
09/19/1989US4868394 Charged particle detector
09/19/1989EP0318549A4 Test meters.
09/19/1989CA1259680A1 Digital signal scrambler
09/19/1989CA1259671A2 Flip-flop in imbedded test system for vlsi
09/14/1989DE3807278A1 Method for the safety-testing of magnetic valves and measuring arrangement for carrying out the method
09/13/1989EP0332547A1 Current measuring circuit
09/13/1989EP0331719A1 Light detector and signal processing circuit
09/13/1989EP0142412B1 Device for the transformation of the appearance probability of logic vectors and for the generation of time-variable probability vector sequences
09/13/1989CN2044352U Warner for leakage of high voltage cable
09/12/1989US4866685 Printed circuit board fabrication technique
09/12/1989US4866578 Inspection fixture for the solder side of printed circuit boards
09/12/1989US4866508 Integrated circuit packaging configuration for rapid customized design and unique test capability
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