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Class Information
Number: 324/688
Name: Electricity: measuring and testing > Impedance, admittance or other quantities representative of electrical stimulus/response relationships > Lumped type parameters > Using capacitive type measurement > With a capacitive sensing means > Including a guard or ground electrode
Description: Subject matter including a conducting element of offset or eliminate undesirable electrical effects.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7590495 |
Inverse method to calculate material properties using a non-resonant technique |
Sep. 15, 2009 |
| 7583092 |
Capacitive sensing apparatus that uses a combined guard and sensing electrode |
Sep. 1, 2009 |
| 7584060 |
Inverse method to calculate material properties using an insertion loss test |
Sep. 1, 2009 |
| 7578195 |
Capacitive sensor |
Aug. 25, 2009 |
| 7564247 |
Operating element with a proximity sensor and shield |
Jul. 21, 2009 |
| 7548075 |
Proximity sensor for X-ray apparatus |
Jun. 16, 2009 |
| 7548073 |
Capacitive sensing apparatus designs |
Jun. 16, 2009 |
| 7548809 |
Apparatus for controlling and sensing moisture on a movable closure member, more particularly an electrically powered automotive window pane |
Jun. 16, 2009 |
| 7545155 |
Parallel AC measurement method |
Jun. 9, 2009 |
| 7541816 |
Capacitive sensor |
Jun. 2, 2009 |
| 7521942 |
Methods and systems for guarding a charge transfer capacitance sensor for proximity detection |
Apr. 21, 2009 |
| 7466146 |
Frozen material detection using electric field sensor |
Dec. 16, 2008 |
| 7417418 |
Thin film sensor |
Aug. 26, 2008 |
| 7417441 |
Methods and systems for guarding a charge transfer capacitance sensor for proximity detection |
Aug. 26, 2008 |
| 7414414 |
Spatially distributed guarded impedance |
Aug. 19, 2008 |
| 7403025 |
Membrane probing system |
Jul. 22, 2008 |
| 7400153 |
Detector with capacitance sensor for detecting object being caught by door |
Jul. 15, 2008 |
| 7358741 |
Electrostatic detection apparatus and method, and coordinate detection program |
Apr. 15, 2008 |
| 7302762 |
Plate type capacitive sensor for five-dimensional displacement measurement |
Dec. 4, 2007 |
| 7301351 |
Printed capacitive sensor |
Nov. 27, 2007 |
| 7288945 |
Systems and methods for detection of dielectric change in material and structure |
Oct. 30, 2007 |
| 7279904 |
Input device |
Oct. 9, 2007 |
| 7262609 |
Methods and systems for guarding a charge transfer capacitance sensor for proximity detection |
Aug. 28, 2007 |
| 7256590 |
Capacitance sensor type measuring apparatus |
Aug. 14, 2007 |
| 7235986 |
Capacitive position sensing system with resonant amplification |
Jun. 26, 2007 |
| 7212015 |
Capacitance sensor type measuring apparatus |
May. 1, 2007 |
| 7208961 |
Electrostatic capacitance detection device |
Apr. 24, 2007 |
| 7183779 |
Soil probe device and method of making same |
Feb. 27, 2007 |
| 7161360 |
Electrostatic capacitance sensor, electrostatic capacitance sensor component, object mounting body and object mounting apparatus |
Jan. 9, 2007 |
| 7148711 |
Membrane probing system |
Dec. 12, 2006 |
| 7138807 |
Capacitive sensing techniques that include determing rotational position of one electrode relative to other electrodes separated by an electrically nonconductive gap |
Nov. 21, 2006 |
| 7119554 |
Electrical capacitance proximity sensor |
Oct. 10, 2006 |
| 7116117 |
Capacitive sensor |
Oct. 3, 2006 |
| 7084643 |
Capacitive sensor for non-contacting gap and dielectric medium measurement |
Aug. 1, 2006 |
| 7015666 |
Device for sensing an obstacle in the opening range of a closure element of a motor vehicle |
Mar. 21, 2006 |
| 6989679 |
Non-contact capacitive sensor and cable with dual layer active shield |
Jan. 24, 2006 |
| 6987871 |
Electrostatic discharge protection of a capacitive type fingerprint sensing array |
Jan. 17, 2006 |
| 6930498 |
Membrane probing system |
Aug. 16, 2005 |
| 6922153 |
Safety detection and protection system for power tools |
Jul. 26, 2005 |
| 6909272 |
System and method for voltage divider having a guard structure |
Jun. 21, 2005 |
| 6894510 |
Locating device |
May. 17, 2005 |
| 6885201 |
Portable electronic device including capacitive water detection means and method of implementation |
Apr. 26, 2005 |
| 6859141 |
Electric field proximity detector for floating and grounded targets |
Feb. 22, 2005 |
| 6828806 |
Electrostatic capacitance sensor, electrostatic capacitance sensor component, object mounting body and object mounting apparatus |
Dec. 7, 2004 |
| 6806697 |
Apparatus and method for canceling DC errors and noise generated by ground shield current in a probe |
Oct. 19, 2004 |
| 6781388 |
Liquid property sensor |
Aug. 24, 2004 |
| 6753689 |
RF configuration in a plasma processing system |
Jun. 22, 2004 |
| 6714023 |
Method for high-accuracy non-contact capacitive displacement measurement of poorly connected targets |
Mar. 30, 2004 |
| 6538457 |
Capacitance type displacement detection apparatus and method of manufacturing the same |
Mar. 25, 2003 |
| 6501284 |
Capacitive finger detection for fingerprint sensor |
Dec. 31, 2002 |
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