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Class Information
Number: 324/537
Name: Electricity: measuring and testing > Fault detecting in electric circuits and of electric components > Of individual circuit component or element
Description: Subject matter relating to the detection of the presence or absence of a defect in an electric component, or element, by giving a nonquantitative indication thereof.










Sub-classes under this class:

Class Number Class Name Patents
324/545 Armature or rotor 146
324/548 Capacitor 191
324/763 Dut including test circuit 1,087
324/538 Electrical connectors 437
324/550 Fuse 111
324/551 Insulation 305
324/770 Liquid crystal device test 415
324/772 Motor or generator fault tests 445
324/539 Multiconductor cable 334
324/771 Power supply test 142
324/549 Resistor 60
324/543 Single conductor cable 170
324/750 System sensing fields adjacent device under test (dut) 378
324/765 Test of semiconductor device 3,698
324/546 Winding or coil 189
324/764 With identification of dut 68
324/754 With probe elements 3,069


Patents under this class:
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Patent Number Title Of Patent Date Issued
5268645 Method of and apparatus for testing circuit boards and the like with an inhomogeneous electric field Dec. 7, 1993
5266901 Apparatus and method for resistive detection and waveform analysis of interconenction networks Nov. 30, 1993
5266902 High or low voltage electrical resistance tester Nov. 30, 1993
5266904 Printed circuit board with through-holes including a test land having two current measuring lands and two resistance measuring lands Nov. 30, 1993
5262720 Circuit for controlling the lines of a display screen and including test means with a single output Nov. 16, 1993
5254554 3-hydroxy-substituted-1-phenyl-1,4-dihydro-4-oxopyridazines and derivatives, and use Oct. 19, 1993
5254953 Identification of pin-open faults by capacitive coupling through the integrated circuit package Oct. 19, 1993
5250908 Portable apparatus for testing multi-wire harnesses and electrical assemblies to identify wiring errors Oct. 5, 1993
5247245 Apparatus for testing different electrical sensors Sep. 21, 1993
5243291 Electromagnetic contactor deposition detecting apparatus which detects load current and switch current Sep. 7, 1993
5235272 Method and apparatus for automatically inspecting and repairing an active matrix LCD panel Aug. 10, 1993
5225815 Monitor for a polyphase rectifier which detects open diodes by sensing a signal below a predetermined threshold Jul. 6, 1993
5218298 Two-terminal-hall-sensors monitoring system for providing decoded magnetic field amplitude signals and system diagnostic signals Jun. 8, 1993
5210486 Circuit test method May. 11, 1993
5202623 Laser-activated plasma chamber for non-contact testing Apr. 13, 1993
5202639 Method and apparatus for testing analogue circuits Apr. 13, 1993
5202640 Capacitance and leakage test method and apparatus Apr. 13, 1993
5198778 Method for inspecting printed circuit boards with through-holes Mar. 30, 1993
5192913 Segmented charge limiting test algorithm for electrical components Mar. 9, 1993
5191282 Unitized test system with bi-directional transport feature Mar. 2, 1993
5189375 Inductive cable resistance tester Feb. 23, 1993
5187430 Method and apparatus for determining nets among nodes in a circuit board Feb. 16, 1993
5184082 Apparatus and method for testing an active matrix pixel display Feb. 2, 1993
5180975 Positioning device and IC conveyor utilizing the same Jan. 19, 1993
5172063 Method and circuit for testing the conductive circuitry of a printed circuit board Dec. 15, 1992
5170125 Tester for the ignition module of a vehicle Dec. 8, 1992
5168217 Method of detecting floated lead of electrical component Dec. 1, 1992
5166601 Test device for electric circuits on boards Nov. 24, 1992
5166609 Adapter and test fixture for an integrated circuit device package Nov. 24, 1992
5164747 Ink jet head with testing resistors Nov. 17, 1992
5162742 Method for locating electrical shorts in electronic substrates Nov. 10, 1992
5159263 LSI system having a test facilitating circuit Oct. 27, 1992
5159266 Test socket and method for failure analysis of plastic quad flat pack devices Oct. 27, 1992
5159273 Tri-state bus driver to support reconfigurable fault tolerant logic Oct. 27, 1992
5159274 Device and methods for measuring the quality of contact between two electrical conductors Oct. 27, 1992
5159369 Integrated circuit for electrostatic discharge testing Oct. 27, 1992
5159526 Method and apparatus for determining orientation of polarized capacitors Oct. 27, 1992
5157326 Board assembly for validation and characterization of a bus system Oct. 20, 1992
5157335 On-chip error detection circuit Oct. 20, 1992
5153521 Broken wire detector for use in a massively parallel array processing system Oct. 6, 1992
5150047 Member for use in assembly of integrated circuit elements and a method of testing assembled integrated circuit elements Sep. 22, 1992
5148102 Apparatus for the electrical function testing of wiring matrices, particularly of printed circuit boards Sep. 15, 1992
5146159 Pin driver for in-circuit test apparatus Sep. 8, 1992
5146160 Auxiliary power unit test kit Sep. 8, 1992
5144230 Method and system for testing integrated circuits by cycle stealing Sep. 1, 1992
5142222 Integrated circuit device having signal discrimination circuit and method of testing same Aug. 25, 1992
5142235 Two wire detection system for producing abnormal state outputs Aug. 25, 1992
5138256 Method and apparatus for determining the thickness of an interfacial polysilicon/silicon oxide film Aug. 11, 1992
5138257 Circuit for testing internal data bus of integrated circuit Aug. 11, 1992
5138266 Single-probe charge measurement testing method Aug. 11, 1992

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