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Class Information
Number: 324/677
Name: Electricity: measuring and testing > Impedance, admittance or other quantities representative of electrical stimulus/response relationships > Lumped type parameters > Using capacitive type measurement > With pulse signal processing circuit > Including r/c time constant circuit
Description: Subject matter including a time-determining network of resistors and capacitors in which the time constant is defined as resistance times capacitance.


Patents under this class:
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Patent Number Title Of Patent Date Issued
7372717 Methods for resistive memory element sensing using averaging May. 13, 2008
7342401 Measurement bias tee Mar. 11, 2008
7259572 Method and apparatus for detecting impedance Aug. 21, 2007
7176699 Auto-adjustment of RC cells within a circuit Feb. 13, 2007
7173438 Measuring capacitance Feb. 6, 2007
7129712 Attofarad capacitance measurement Oct. 31, 2006
7071710 Extraction of interconnect parasitics Jul. 4, 2006
7071711 Method and device for determining the ratio between an RC time constant in an integrated circuit and a set value Jul. 4, 2006
7051305 Delay estimation using edge specific miller capacitances May. 23, 2006
7026808 Method and apparatus for providing information from a speed and direction sensor Apr. 11, 2006
6940293 Modeling miller effect in static timing analysis Sep. 6, 2005
6917207 Double time-constant for electrostatic discharge clamping Jul. 12, 2005
6853201 Method for testing a capacitive actuator Feb. 8, 2005
6819123 Extraction of interconnect parasitics Nov. 16, 2004
6791343 Modeling miller effect in static timing analysis Sep. 14, 2004
6775627 Method and/or software for determining the capacitance of an analog/mixed signal circuit Aug. 10, 2004
6771082 Resistance circuit stabilization and pulse duration control systems for electroporation instruments Aug. 3, 2004
6737877 Method and circuit for reading a potentiometer May. 18, 2004
6624640 Capacitance measurement Sep. 23, 2003
6593755 Method and apparatus for detection sensor shielding Jul. 15, 2003
6580279 Method and apparatus for checking the capacitance of a storage capacitor provided in an occupant protection system Jun. 17, 2003
6518777 Method and apparatus for measuring insulation resistance Feb. 11, 2003
6469516 Method for inspecting capacitors Oct. 22, 2002
6424161 Apparatus and method for testing fuses Jul. 23, 2002
6191723 Fast capacitance measurement Feb. 20, 2001
5992950 Controlled stop function for locomotives Nov. 30, 1999
5977893 Method for testing charge redistribution type digital-to-analog and analog-to-digital converters Nov. 2, 1999
5798650 Process and device for determining the mass fraction of one constituent of a layer, and effecting the quality control of a composite metal sheet Aug. 25, 1998
5798648 Apparatus and method for inspecting an electrolytic capacitor in an inverter circuit containing transistor switching elements Aug. 25, 1998
5777904 System comprising an apparatus and a peripheral device for the apparatus, and an apparatus and a peripheral device for such a system Jul. 7, 1998
5730165 Time domain capacitive field detector Mar. 24, 1998
5657238 Resistance measuring circuit, and thermal apparatus including the measuring circuit Aug. 12, 1997
5648727 Capacitive level sensing pipette probe Jul. 15, 1997
5600254 Process and circuit arrangement for measuring the resistance of a resistance sensor Feb. 4, 1997
5576628 Method and apparatus to measure capacitance Nov. 19, 1996
5563519 Circuit and method for determining the physical position of a variable resistive device between its mechanical limits Oct. 8, 1996
5531097 Absolute humidity meter Jul. 2, 1996
5519328 Compensation for dielectric absorption effect May. 21, 1996
5514972 Voltage comparison circuit May. 7, 1996
5479103 Non-linear voltage measuring implementing capacitor charging time Dec. 26, 1995
5469364 Apparatus and methods for measuring and detecting variations in the value of a capacitor Nov. 21, 1995
5438272 Voltage-stressing and testing of networks using moving probes Aug. 1, 1995
5416423 Method and apparatus for verifying the integrity of a smart card May. 16, 1995
5399979 Capacitance probe assembly Mar. 21, 1995
5274334 Calibrated physical parameter value measurement system Dec. 28, 1993
5266901 Apparatus and method for resistive detection and waveform analysis of interconenction networks Nov. 30, 1993
5245294 Method for evaluating operability of filter components in power conversion system Sep. 14, 1993
5204674 Servo mechanism with differential phase shift feedback Apr. 20, 1993
5136251 Capacitance measurement Aug. 4, 1992
5122754 Sensor for verification of genuineness of security paper Jun. 16, 1992

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