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Browse by Category: Main > Electrical & Energy
Class Information
Number: 324/678
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 charge or discharge cycle circuit
Description: Subject matter including circuit means to store or release electrical energy periodically.










Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8710853 Capacitance sensing Apr. 29, 2014
8686744 Precision measurement of capacitor mismatch Apr. 1, 2014
8659306 Parasitic capacitance cancellation in capacitive measurement applications Feb. 25, 2014
8643838 Emission spectrophotometer Feb. 4, 2014
8629685 Device for measuring a variation in the capacitance of a variable capacitive structure Jan. 14, 2014
8624607 Measuring voltage Jan. 7, 2014
8614587 Capacitance sensing circuits and methods Dec. 24, 2013
8604774 Current sensing circuit with feedback control and dual capacitor set range setting Dec. 10, 2013
8577316 Mechanically tuned radio utilizing ratiometric time measurements and related methods Nov. 5, 2013
8570052 Methods and circuits for measuring mutual and self capacitance Oct. 29, 2013
8570053 Capacitive field sensor with sigma-delta modulator Oct. 29, 2013
8564313 Capacitive field sensor with sigma-delta modulator Oct. 22, 2013
8558791 Sensor system for generating signals that are indicative of the position or change of position of limbs Oct. 15, 2013
8558560 Test apparatus, additional circuit and test board for judgment based on peak current Oct. 15, 2013
8558559 Test apparatus, additional circuit and test board for calculating load current of a device under test Oct. 15, 2013
8552747 Capacitance discrimination circuit and touch switch equipped with the same Oct. 8, 2013
8547114 Capacitance to code converter with sigma-delta modulator Oct. 1, 2013
8497690 Automated capacitive touch scan Jul. 30, 2013
8493080 Test system and method Jul. 23, 2013
8478197 Wireless transceiver module Jul. 2, 2013
8415957 Capacitance measurement circuit and method Apr. 9, 2013
8410797 Capacitive sensor and sensing method Apr. 2, 2013
8410932 Capacitive sensor arrangement with a sensor electrode, a screen electrode and a background electrode Apr. 2, 2013
8405407 Current measurement circuit and measuring method thereof including a binary weighted capacitor array Mar. 26, 2013
8400159 Casing correction in non-magnetic casing by the measurement of the impedance of a transmitter or receiver Mar. 19, 2013
8400409 User interface devices, methods, and computer readable media for sensing movement of an actuator across a surface of a window Mar. 19, 2013
8390303 Method for detecting pressure on touch sensing element and electronic device using the same Mar. 5, 2013
8378981 Capacitive sensing with high-frequency noise reduction Feb. 19, 2013
8368408 Measuring a time period Feb. 5, 2013
8368409 Capacitance measurement system and method Feb. 5, 2013
8362784 Capacitor capacitance diagnosis device and electric power apparatus equipped with capacitor capacitance diagnosis device Jan. 29, 2013
8363031 Mutual capacitance measuring circuits and methods Jan. 29, 2013
8358142 Methods and circuits for measuring mutual and self capacitance Jan. 22, 2013
8339148 Multi-channel capacitive sensing circuit Dec. 25, 2012
8319505 Methods and circuits for measuring mutual and self capacitance Nov. 27, 2012
8319516 Circuit for testing inrush current Nov. 27, 2012
8289034 Capacitance measurement circuit and capacitance measurement method thereof Oct. 16, 2012
8258798 On chip duty cycle measurement module Sep. 4, 2012
8228076 Deconvolution-based capacitive touch detection circuit and method Jul. 24, 2012
8217666 Capacitance detection apparatus Jul. 10, 2012
8207944 Capacitance measuring circuit and method Jun. 26, 2012
8183875 System and method for determining touch positions based on passively-induced position-dependent electrical charges May. 22, 2012
8174273 Capacitance measurement circuit with dynamic feedback May. 8, 2012
8164351 Test apparatus Apr. 24, 2012
8154310 Capacitance sensor with sensor capacitance compensation Apr. 10, 2012
8134374 Evaluation circuit for capacitance and method thereof Mar. 13, 2012
8106668 Proximity detector and proximity detecting method Jan. 31, 2012
8089288 Charge accumulation capacitance sensor with linear transfer characteristic Jan. 3, 2012
8089289 Capacitive field sensor with sigma-delta modulator Jan. 3, 2012
8067948 Input/output multiplexer bus Nov. 29, 2011

1 2 3 4 5 6 7 8










 
 
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