| 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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| 04/17/1990 | US4918379 Integrated monolithic circuit having a test bus |
| 04/17/1990 | US4918377 Integrated circuit reliability testing |
| 04/17/1990 | US4918374 Method and apparatus for inspecting integrated circuit probe cards |
| 04/17/1990 | US4918335 Interconnection system for integrated circuit chips |
| 04/17/1990 | US4917973 Electrochromic device utilizing color change due to change in stage structure of graphite intercalation compound |
| 04/12/1990 | DE3834003A1 Method for recharging batteries of an open type and of a sealed type, as well as a charger for carrying out the method |
| 04/12/1990 | DE3831649C1 Device for simplifying the location of faults in cable networks having cable sleeves |
| 04/11/1990 | EP0362498A1 Inspection system utilizing retarding field back scattered electron collection |
| 04/11/1990 | EP0362406A1 System for detecting defective point on power transmission line by utilizing satellite |
| 04/11/1990 | CN2055941U Insulator voltage distribution detecting device |
| 04/11/1990 | CN2055940U Colour changing logic pen |
| 04/11/1990 | CN2055939U Electronic test pencil for car |
| 04/10/1990 | US4916657 Single instruction multiple data (SIMD) cellular array processing apparatus employing multiple state logic for coupling to data buses |
| 04/10/1990 | US4916613 Remote low power indicator for battery driven apparatus |
| 04/10/1990 | US4916438 Battery charging, monitoring and alarm circuit |
| 04/10/1990 | US4916411 Variable frequency jitter generator |
| 04/10/1990 | US4916401 Method and apparatus for testing fastener arcing and sparking |
| 04/10/1990 | US4916389 Semiconductor integrated circuit with voltage limiter having different output ranges from normal operation and performing of aging tests |
| 04/10/1990 | US4916388 Semiconductor integrated circuit device equipped with scan-pass type test circuit |
| 04/10/1990 | US4916385 Inverter circuit |
| 04/05/1990 | DE3831866A1 Method for measuring the AM/PM conversion Kp and the compression C of a microwave link and circuit arrangement for carrying out the method |
| 04/04/1990 | EP0361808A2 Modular test structure for single chip digital exchange controller |
| 04/04/1990 | EP0361779A1 Micro-strip architecture for membrane test probe |
| 04/04/1990 | EP0361339A1 Method and device for corona testing of oil-submerged insulators |
| 04/04/1990 | EP0360999A2 Method of generating patterns of test bits |
| 04/04/1990 | EP0360967A2 Method of testing conductor film quality |
| 04/04/1990 | CN2055601U High-pressure constant temp. working-table |
| 04/04/1990 | CN1041042A Automatic field ground detector and locator |
| 04/03/1990 | US4914601 Method for profiling wafers and for locating dies thereon |
| 04/03/1990 | US4914568 Programming a computer system |
| 04/03/1990 | US4914393 Accurately indicating a status of consumption of a battery by which an electronic circuit is controllably put into operation |
| 04/03/1990 | US4914386 Method and apparatus for providing thermal protection for large motors based on accurate calculations of slip dependent rotor resistance |
| 04/03/1990 | US4914379 Semiconductor integrated circuit and method of testing same |
| 04/03/1990 | US4914312 Pulsed power supply for determining breakdown voltage |
| 04/03/1990 | US4913987 Universal electrolyte level indicator for wet cell batteries |
| 04/03/1990 | US4913557 Intergrated logic circuit having testing function circuit formed integrally therewith |
| 04/03/1990 | CA1267463A1 Switch status monitoring system, single wire bus, smart sensor arrangement therefor |
| 03/29/1990 | DE3833165A1 Method for detecting insulation faults on plastic-insulated electrical conductors |
| 03/29/1990 | DE3832840A1 Transport system with battery-operated vehicles |
| 03/29/1990 | DE3832839A1 Apparatus for monitoring rechargeable batteries |
| 03/29/1990 | DE3832703A1 Arrangement for determining a fault position |
| 03/29/1990 | DE3832273A1 Method and arrangement for the determination of the thermal resistance of IGBT components |
| 03/28/1990 | EP0360700A1 Magneto-electric probe and method of using same |
| 03/28/1990 | EP0360607A2 Evaluating method for solid state image sensor |
| 03/28/1990 | EP0360592A1 Apparatus for detecting fault on power transmission lines |
| 03/28/1990 | EP0360519A2 Timing measurement for jitter display |
| 03/28/1990 | EP0360396A2 Force delivery system for improved precision membrane probe |
| 03/28/1990 | EP0359866A1 Process and appliance for measuring current consumption in a monolitic IC |
| 03/28/1990 | CN1040868A Voltage tester with segmental light indication and manufacturing method thereof |
| 03/27/1990 | US4912709 Flexible VLSI on-chip maintenance and test system with unit I/O cell design |
| 03/27/1990 | US4912588 High-tension voltage generator and method of protecting same against electrical arcs |
| 03/27/1990 | US4912416 Electronic battery testing device with state-of-charge compensation |
| 03/27/1990 | US4912405 Magnetic lens and electron beam deflection system |
| 03/27/1990 | US4912402 Fixture for measuring the static characteristics of microwave three-terminal active components |
| 03/27/1990 | US4912401 For accesssing the signals sed by an electronic device |
| 03/27/1990 | US4912400 Apparatus for testing circuit boards |
| 03/27/1990 | US4912399 Multiple lead probe for integrated circuits in wafer form |
| 03/27/1990 | US4912395 Testable LSI device incorporating latch/shift registers and method of testing the same |
| 03/27/1990 | US4912392 Battery charge state monitor |
| 03/27/1990 | US4912330 Apparatus for X-ray testing long wave infrared radiation detectors |
| 03/27/1990 | US4912052 Method of testing semiconductor elements |
| 03/27/1990 | US4911648 IC connection/disconnection mechanism and method for carrying out the same |
| 03/22/1990 | WO1990003000A1 Method and apparatus for determining an internal state of an electronic component |
| 03/22/1990 | WO1990002997A1 Method and apparatus for sensing defects in integrated circuit elements |
| 03/22/1990 | WO1990002955A1 Process and device for measuring states and variations over time |
| 03/22/1990 | WO1990002953A1 Apparatus for testing circuit boards |
| 03/22/1990 | WO1990002926A1 An instrument for checking the operational state of an ic-circuit |
| 03/22/1990 | WO1990002672A1 Triggering circuit for a vehicle air bag |
| 03/22/1990 | DE3912506A1 Partial discharge sensor for testing transformer or generator - has adaptor for each test object, complementary bipolar transistor input stage, and amplifies and stretches partial discharge signal |
| 03/22/1990 | DE3901680A1 Method for monitoring the cold starting ability of a starter battery of an internal combustion engine |
| 03/21/1990 | EP0359666A1 Fibre-optical measuring system, gyrometer, navigation and stabilization system |
| 03/21/1990 | EP0359237A2 Apparatus for displaying the remaining charge of rechargeable battery |
| 03/21/1990 | EP0358972A1 An electrical circuit, particularly an electronic power circuit for motor vehicle injection systems, with a function for the detection and diagnosis of faults, and method related thereto |
| 03/21/1990 | EP0358887A2 Error detection circuit for a measuring device |
| 03/21/1990 | EP0358773A1 Microcomputer |
| 03/21/1990 | EP0358757A1 Measurement of the variation in time of a periodic signal |
| 03/21/1990 | CN2054909U Insulator arc-over point indicator |
| 03/21/1990 | CN1040691A Arrangement in data processing sgstem for system initialization and reset |
| 03/21/1990 | CN1007312B Internal armature current monitoring in large three-phase generator |
| 03/21/1990 | CN1007292B Nondestructive readout of a latent electrostatic image formed on an insulating material |
| 03/20/1990 | US4910795 Wireless hand held microphone |
| 03/20/1990 | US4910735 Semiconductor integrated circuit with self-testing |
| 03/20/1990 | US4910734 Intergrated circuit having testing function circuit and control circuit therefor |
| 03/20/1990 | US4910630 Method and apparatus for energizing an electrical load |
| 03/20/1990 | US4910455 Non-intrusive current measuring circuit |
| 03/20/1990 | US4910454 System for electrical signal sampling with ultrashort optical pulses |
| 03/20/1990 | US4910417 Universal logic module comprising multiplexers |
| 03/20/1990 | US4910159 Forming a diffused p-type secondary collector region; joining to primary collector region |
| 03/20/1990 | US4910103 Battery pack for a portable radiotelegraphic unit |
| 03/15/1990 | DE3912654A1 Charge injector calibrating partial discharge measurement circuits - has charge storage capacitor supplied by recharge device and short duration switch |
| 03/15/1990 | DE3831012A1 Method and arrangement for determining the temperature inside MOSFET structures of integrated MOS circuits |
| 03/14/1990 | EP0358488A2 Equipment for and methods of locating the position of a fault on a power transmission line |
| 03/14/1990 | EP0358483A2 An automatic field ground detector and locator |
| 03/14/1990 | EP0358376A2 Integrated test circuit |
| 03/14/1990 | EP0358371A2 Enhanced test circuit |
| 03/14/1990 | EP0358365A2 Testing buffer/register |
| 03/14/1990 | CN2054538U Fast-speed wire-checking unit |
| 03/13/1990 | US4908576 System for printed circuit board testing |
| 03/13/1990 | US4908571 System for testing of electrical characteristics of semiconductor devices |
| 03/13/1990 | US4908570 Method of measuring FET noise parameters |