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Class Information
Number: 327/517
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > External effect > Responsive to proximity or touch
Description: Subject matter wherein the operation of a circuit or system is modified by the approach of or slight contact with a physical object.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8704586 Capacitance detecting apparatus and capacitive touch control system using the same Apr. 22, 2014
8704408 Switch matrix modeling system and method Apr. 22, 2014
8692797 Touch recognition apparatus and method in capacitive touch screen Apr. 8, 2014
8618865 Capacitive imaging device with active pixels Dec. 31, 2013
8593212 Signal noise ratio control system and method thereof Nov. 26, 2013
8575995 Capacitance type input device Nov. 5, 2013
8550991 Touch panel sensor Oct. 8, 2013
8519875 System and method for background calibration of time interleaved analog to digital converters Aug. 27, 2013
8400209 Proximity detection Mar. 19, 2013
8395587 Haptic response apparatus for an electronic device Mar. 12, 2013
8390361 Capacitive to voltage sensing circuit Mar. 5, 2013
8376313 Capacitive touch sensor Feb. 19, 2013
8289069 Touch apparatus Oct. 16, 2012
8248149 Apparatus and methods for registering inputs from a user Aug. 21, 2012
8179180 Device and method for detecting an approach or contact May. 15, 2012
8174304 Key module having light-indicating functionality and a method for controlling the same May. 8, 2012
8154310 Capacitance sensor with sensor capacitance compensation Apr. 10, 2012
8049518 Capacitive sensor system Nov. 1, 2011
7973589 Micro-controller-based electronic switch using a proximity detector to facilitate hands-free control of an AC device Jul. 5, 2011
7884664 Input device, and multi-function peripheral Feb. 8, 2011
7863966 Readout circuit for touch panel Jan. 4, 2011
7843249 Adaptive capacitive touch sense control circuit Nov. 30, 2010
7782069 Capacitive proximity switch, and domestic appliance comprising the same Aug. 24, 2010
7479791 Circuit arrangement for a capacitive proximity switch Jan. 20, 2009
7479951 Device for controlling touch panel Jan. 20, 2009
7336120 Circuit and method for boosting output current Feb. 26, 2008
7193833 Electric switch Mar. 20, 2007
7091823 Human body detecting device and door locking device Aug. 15, 2006
7026861 Electronic door latch system with water rejection filtering Apr. 11, 2006
6798217 Proximity sensor Sep. 28, 2004
6791398 Data token with power saving switch Sep. 14, 2004
6750564 Compact non-contact electrical switch Jun. 15, 2004
6710629 Impedance comparison integrator circuit Mar. 23, 2004
6532447 Apparatus and method of controlling a voice controlled operation Mar. 11, 2003
6376939 Sensor apparatus and safety apparatus for protecting approach to machines Apr. 23, 2002
6362632 Balanced charge pump capacitive material sensor Mar. 26, 2002
5977662 Electronic switching device and circuits with a plurality of such switching devices Nov. 2, 1999
5949257 DC level transition detecting circuit for sensor devices Sep. 7, 1999
5920487 Two dimensional lithographic proximity correction using DRC shape functions Jul. 6, 1999
5880538 Capacitive proximity switch circuit Mar. 9, 1999
5783875 Touch sensor circuit Jul. 21, 1998
5714808 Touch control supply system for an electrical device, method of implementation and applications Feb. 3, 1998
5463333 Proximity switches Oct. 31, 1995
5453644 Personal-care apparatus comprising a capacitive on/off switch Sep. 26, 1995
5355130 Ultrasonic proximity switch with a synchronizing device Oct. 11, 1994
5264783 Contactless magnet-activated proportional controller Nov. 23, 1993
5256909 Electronic, preferably zero-contact switch Oct. 26, 1993
5107210 Displacement sensing circuit with coil and band pass filter for attenuating external interference Apr. 21, 1992
5075632 Automatic control using proximity sensors Dec. 24, 1991
5063306 Proximity sensing device Nov. 5, 1991

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