Patents
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)
02/1991
02/28/1991DE3928003A1 Guiding corpuscular probe in region of sample - following signal of interest along conductor path of integrated circuit whose layout is not fully known
02/27/1991EP0414657A2 Electronic device for detection and storage of short circuit currents switched off by a power circuit breaker
02/27/1991EP0414378A2 An adapter for integrated circuit elements and a method using the adapter for testing assembled elements
02/27/1991EP0414142A2 Monitoring and controlling system and method of acquisition of random errors
02/27/1991EP0414052A1 Device for measuring the temperature of the winding of electrical machinery
02/27/1991EP0413817A1 Substrate examining apparatus
02/27/1991CN2072231U Mini oil tester
02/27/1991CN2072230U Portable tester for protective relay
02/27/1991CN1011824B Method of test vector generation for testing ic
02/27/1991CN1011823B Dynamic life tester and quality analysis for semiconductor rectifying devices
02/26/1991WO1991003014A2 Method and apparatus for high precision weighted random pattern generation
02/26/1991US4996691 Integrated circuit testing method and apparatus and integrated circuit devices for use therewith
02/26/1991US4996689 Method of generating tests for a combinational logic circuit
02/26/1991US4996688 In a digital electronic
02/26/1991US4996659 Method of diagnosing integrated logic circuit
02/26/1991US4996654 Method of displaying acquired data
02/26/1991US4996643 Diagnosis system for a motor vehicle
02/26/1991US4996580 Bipolar semiconductor device
02/26/1991US4996519 Method and apparatus for monitoring an amplifier
02/26/1991US4996486 Method and apparatus for inspecting laminated iron core stacks for interlamination shorts
02/26/1991US4996478 Coaxial probe mounting system
02/26/1991US4996477 Fault unit
02/26/1991CA1280805C Memory for storing response patterns in an automatic testing instrument
02/24/1991CA2023880A1 Electronic control for an appliance
02/23/1991CA2023651A1 Apparatus for measuring a winding temperature of electric machines
02/21/1991WO1991002396A1 Adaptive trip fault current indicator
02/21/1991WO1991002258A1 Method and package for integrated circuit identification and testing
02/21/1991WO1991002257A1 Device for monitoring the functions of a plurality of control units in a motor vehicle
02/21/1991WO1991002256A1 Process and device for polling control unit data
02/21/1991WO1991002147A1 Process and device for controlling and/or regulating the output of an internal combustion engine in a motor vehicle
02/21/1991WO1991000527A3 Method and apparatus for locating faults in electronic units
02/21/1991DE3942219C1 Crimped connection quality measurement method - measuring distance positionally fixed tool or press base and active tool or press head
02/21/1991DE3927414A1 Monitoring mining machinery, installations and power supply - measuring and evaluating current and voltage with measuring appts. integrated in existing compact stations
02/21/1991DE3926994A1 Flux vector indicator for self-commutated asynchronous machine - uses integration of voltage vector and current vector components
02/20/1991EP0413542A2 Direct mount semiconductor package
02/20/1991EP0148403B1 Linear feedback shift register
02/20/1991CN2071791U Electric cable and wire tester
02/19/1991US4995039 Circuit for transparent scan path testing of integrated circuit devices
02/19/1991US4995038 Finding faults in circuit boards
02/19/1991US4995006 Apparatus and method for low-pass equivalent processing
02/19/1991US4994737 System for facilitating planar probe measurements of high-speed interconnect structures
02/19/1991US4994736 Method and structure for extracting lateral PNP transistor basewidth data at wafer probe
02/19/1991US4994735 Flexible tester surface for testing integrated circuits
02/19/1991US4994732 Automatic test system having a "true tester-per-pin" architecture
02/19/1991US4994728 Apparatus for diagnosing vehicle-mounted battery
02/19/1991US4993955 Top-load socket for integrated circuit device
02/14/1991DE4024594A1 Integrated circuit comprising separate function modules - each with own test circuit having pick=up path to collect test data from lead conducting output-input signals
02/14/1991DE3934974A1 Vorrichtung zur funktionskontrolle mehrerer steuergeraete in einem kraftfahrzeug Apparatus for functional control of multiple ECUs in a motor vehicle
02/14/1991DE3926097A1 Verfahren und vorrichtung zum abfragen von steuergeraete-daten Method and device for query of tax-makers-data
02/13/1991EP0412422A2 Self-test system for external programming device
02/13/1991EP0412119A1 Static-free interrogating connector for electric components.
02/13/1991CN2071344U Measuring electrode of insulation oil and temp. controlling system of heating basin
02/13/1991CN2071342U Multifunctional current measurer
02/13/1991CN1049229A Apparatus for monitoring degradation of insulation of electrical installation
02/12/1991US4992985 Method for selectively initiating/terminating a test mode in an address multiplexed DRAM and address multiplexed DRAM having such a capability
02/12/1991US4992970 System for reading or setting printed circuit boards voltage of computer by support processor
02/12/1991US4992937 Microcomputer having a program mode setting circuit
02/12/1991US4992739 Continuity tester
02/12/1991US4992729 Low profile inker
02/12/1991US4992728 Electrical probe incorporating scanning proximity microscope
02/12/1991US4992727 Integrated circuits
02/12/1991US4992679 Programming logic device with multiple independent feedbacks per input/output terminal
02/12/1991US4991429 Torque angle and peak current detector for synchronous motors
02/12/1991CA1280219C Diagnosis of faults on circuit board
02/12/1991CA1280168C Fault indicator having delayed trip circuit
02/12/1991CA1280166C Power supply magnetic shunt for transmission line sensor module
02/12/1991CA1280164C Electronic battery testing device
02/12/1991CA1280162C Digital-to-analog calibration system
02/08/1991WO1991002395A1 Current adaptive fault indicator
02/08/1991CA2064834A1 Current adaptive fault indicator
02/07/1991WO1991001528A1 Method and apparatus for data collection of testing and inspection of products made on a production assembly line
02/07/1991DE4023387A1 Generation of logic image for testing microelectronic components - using raster electron microscopic with unmodified deflection unit
02/07/1991DE3925911A1 Opto-electronic test system for PCB - has circuit detecting bores in conductor path pattern ascertained by image converter
02/06/1991EP0411904A2 Processor condition sensing circuits, systems and methods
02/06/1991EP0411863A2 Apparatus for monitoring degradation of insulation of electrical installation
02/06/1991EP0411792A2 Apparatus for testing hall effect device
02/06/1991EP0411069A1 Redundancy and testing techniques for ic wafers
02/06/1991CN2070913U Tester for electric line leakage of motor driven vehicle
02/06/1991CN1049058A On-line overvoltage monitor for electric power system
02/06/1991CN1049057A Method for rapid measurement of phase resistance of delta winding
02/05/1991US4991185 Method of testing n-bit programmable counters
02/05/1991US4991176 Optimal test generation for finite state machine models
02/05/1991US4991106 Method and apparatus for aligning and analyzing sample and control signals
02/05/1991US4990895 Method and apparatus for testing photoelectric circuits
02/05/1991US4990857 Insulation testing apparatus of a refrigerating machine
02/05/1991US4990854 Process and device for automatically detecting the response voltage of an electromagnetic component, in particular an electrovalve
02/05/1991US4990776 Electron microscope
02/05/1991US4990218 Immediately after lamination; nondeforming
02/05/1991US4989989 Hydraulic sensor for quench detection and location in superconductors
02/05/1991CA1279936C Multiple lead probe for integrated circuits in wafer form
02/05/1991CA1279934C Method and measuring instrument for identifying the diffusion length ofthe minority charge carriers for non-destructive detection of flaws and impurities in semiconductor crystal bodies
02/05/1991CA1279910C Differential input selector
02/01/1991CA2022413A1 Apparatus for monitoring degradation of insulation of electrical installation
02/01/1991CA2022239A1 Programmable fault insertion arrangement and method
01/1991
01/30/1991EP0410436A2 Apparatus and method for testing printed circuit boards
01/30/1991EP0410108A1 Control arrangement for a restraining system in motor cars
01/30/1991CN2070453U Gas discharge light tester
01/30/1991CN2070452U Leakage current testing alarming device for high-voltage insulator
01/30/1991CN2070451U Tester for arrester discharge counter
01/30/1991CN1048927A Method and apparatus for locating abnormality in gas-insulated electric device