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Class Information
Number: 324/704
Name: Electricity: measuring and testing > Impedance, admittance or other quantities representative of electrical stimulus/response relationships > Lumped type parameters > Using resistance or conductance measurement > With ratio determination
Description: Subject matter including evaluating means which utilize a value which represents the ratio of a first signal to a second signal.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7411407 |
Testing target resistances in circuit assemblies |
Aug. 12, 2008 |
| 7403816 |
Method and apparatus for analyzing bioelectrical response waveform information, and diagnostic apparatus thereof |
Jul. 22, 2008 |
| 6737875 |
Method and apparatus for in-circuit impedance measurement |
May. 18, 2004 |
| 6651020 |
Method and apparatus for economical drift compensation in high resolution measurements |
Nov. 18, 2003 |
| 6549021 |
APPARATUS FOR MEASURING THE RATIO OF ELECTRICAL SIGNALS, ELECTRIC COMPONENT MEASURING INSTRUMENT, METHOD FOR CALIBRATING ELECTRIC COMPONENT MEASURING INSTRUMENTS AND METHOD FOR MEASURING THE R |
Apr. 15, 2003 |
| 6512383 |
System for measuring the alternating current equivalent series resistance of a conductor |
Jan. 28, 2003 |
| 6452405 |
Method and apparatus for calibrating a current sensing system |
Sep. 17, 2002 |
| 6350959 |
Method for sorting integrated circuit devices |
Feb. 26, 2002 |
| 6100486 |
Method for sorting integrated circuit devices |
Aug. 8, 2000 |
| 5999002 |
Contact check for remote sensed measurement |
Dec. 7, 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 |
| 5729123 |
Method and apparatus for probing relative volume fractions |
Mar. 17, 1998 |
| 5627476 |
Milliohm impedance measurement |
May. 6, 1997 |
| 5602488 |
Method and apparatus for adjusting sectional area ratio of metal-covered electric wire |
Feb. 11, 1997 |
| 5600176 |
Integrated voltage divider |
Feb. 4, 1997 |
| 5512837 |
Voltage drop detecting circuit |
Apr. 30, 1996 |
| 5457402 |
Armature resistance measuring apparatus and method |
Oct. 10, 1995 |
| 5386188 |
In-circuit current measurement |
Jan. 31, 1995 |
| 5351010 |
Resistance ratio measurement utilizing measuring currents of opposite plural direction |
Sep. 27, 1994 |
| 5307019 |
Method and apparatus for determining the weld and coil resistances of a motor winding |
Apr. 26, 1994 |
| 5272444 |
Dielectric cross-plot water cut monitoring apparatus and method |
Dec. 21, 1993 |
| 5270663 |
Apparatus for detecting a liquid mixing ratio |
Dec. 14, 1993 |
| 5210501 |
Apparatus for processing sensor signals having switch-capacitor structures |
May. 11, 1993 |
| 5146173 |
Position determining device |
Sep. 8, 1992 |
| 5007283 |
Method and device for processing measured values |
Apr. 16, 1991 |
| 4994752 |
Position detecting potentiometer for a moving body |
Feb. 19, 1991 |
| 4816745 |
Method and arrangement for measuring the resistance ratio in a resistance half-bridge |
Mar. 28, 1989 |
| 4814692 |
Circuit and method for measuring and digitizing the value of a resistance |
Mar. 21, 1989 |
| 4714874 |
Test strip identification and instrument calibration |
Dec. 22, 1987 |
| 4524319 |
Method for the determination of kinetics of structure formation in a binder |
Jun. 18, 1985 |
| 4362988 |
Method of and circuit arrangement for determining the magnitude of an unknown resistance element |
Dec. 7, 1982 |
| 4300094 |
Finish measuring method and apparatus |
Nov. 10, 1981 |
| 4262247 |
Making and using corrosion measuring probes for fluid conveying conduits |
Apr. 14, 1981 |
| 4218650 |
Apparatus for measuring semiconductor device resistance |
Aug. 19, 1980 |
| 4176313 |
Analyzing electrical circuit boards |
Nov. 27, 1979 |
| 4175253 |
Analyzing electrical circuit boards |
Nov. 20, 1979 |
| 3978402 |
Apparatus for producing an electrical output signal whose magnitude is linearly representative of the value of an unknown resistance |
Aug. 31, 1976 |
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