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| Number | Title | Issue Date |
| 8115498 | Proximity sensor interface device and method for its use A device for determining a position of a proximity sensor with respect to a target mechanism is described. The device includes a frequency generator, a processing device, and an RC circuit. An output of the frequency generator is operable for application to a proxim... | 02/14/2012 |
| 7902841 | Capacitive proximity sensor Disclosed is an arrangement for monitoring changes in an object's surrounding field, including a sensor-active region(s), a measurement path(s) with a driver for applying a variable, a receiver(s) detecting a variable, a circuit connected downstream of the receiver ... | 03/08/2011 |
| 7750648 | Method to quickly estimate inductance for timing models A method of estimating an inductance delay includes determining a resistance-capacitance (RC) delay with resistances and capacitances of a network and estimating an inductance delay of the network by determining a propagation delay of an electromagnetic (EM) field a... | 07/06/2010 |
| 7372717 | Methods for resistive memory element sensing using averaging A system for determining the logic state of a resistive memory cell element, for example an MRAM resistive cell element. The system includes a controlled voltage supply, an electronic charge reservoir, a current source, and a pulse counter. The controlled voltage su... | 05/13/2008 |
| 7368920 | Potential fixing device and potential fixing method An electric potential fixing apparatus of the present invention is an electric potential fixing apparatus that is connected to a connection line (17) between two capacitances, the first capacitance (14) and the second capacitance (15) that is di... | 05/06/2008 |
| 7342401 | Measurement bias tee A bias tee for connecting a measurement device to a DUT, where the measurement device has a guard output, includes a DC port; a HF port; and a measurement port. The HF input port is guarded with the guard output during operation of the bias tee. ... | 03/11/2008 |
| 7332915 | Sensor system and method of operating the same A sensor system comprising a sensor operable to provide an output signal representative of a sensed parameter is provided. The sensor system also comprises a control system coupled to the sensor, wherein the control system is operable to change a physical characteri... | 02/19/2008 |
| 7330390 | Noise resistant small signal sensing circuit for a memory device Apparatus and method for data sensing circuitry that uses averaging to sense small differences in signal levels representing data states. The apparatus periodically switches the coupling of input terminals and output terminals of an integrator circuit from a first c... | 02/12/2008 |
| 7324914 | Timing closure for system on a chip using voltage drop based standard delay formats A timing closure analysis associated with SoCs uses voltage drop based standard delay formats (SDFs). Static timing analysis (STA) is implemented using multiple SDFs, one for each mode (ATPG Test, BIST Test, Functional) as contrasted with doing STA with only one wor... | 01/29/2008 |
| 7325210 | Hybrid linear wire model approach to tuning transistor widths of circuits with RC interconnect A hybrid linear wire model for tuning the transistor widths of circuits linked by RC interconnects is described. The method uses two embedded simulators during the tuning process on netlists that contain resistors (Rs). A Timing oriented simulator is used only for t... | 01/29/2008 |
| 7293709 | Detection of tampering of a smart card interface This invention relates to a method (and a corresponding terminal) of detecting a presence of a circuit extending arrangement inserted between a physical interface, connected to a terminal, and a smart card, the physical interface being adapted to receive the smart c... | 11/13/2007 |
| 7259572 | Method and apparatus for detecting impedance A method and apparatus for detecting an impedance across a pair of terminals. A sensing circuit is AC coupled to the terminals which produces an output related to a time constant associated with the impedance. ... | 08/21/2007 |
| 7222526 | Liquid measurements using capacitive monitoring An apparatus for determining the volume of liquid in a probe tip of an aspirating or dispensing probe, such as those used in a diagnostic analyzer, includes: two electrodes on opposite sides of the probe tip and the electrodes and liquid form a variable capacitor; a... | 05/29/2007 |
| 7224160 | RF and pulse bias tee A RF and pulse bias tee for use with a source measure unit (SMU) includes a SMU source terminal; a SMU measure terminal; an output terminal; a SMU measure terminal pulse/RF block between the SMU measure terminal and the output terminal; a SMU source terminal high fr... | 05/29/2007 |
| 7216316 | Method for evaluating nets in crosstalk noise analysis Broadly speaking, a method is provided for evaluating nets in a crosstalk noise analysis. More specifically, a method is provided for evaluating timing window overlap between a pair of nets. The method includes selecting one timing window from each net of the pair o... | 05/08/2007 |
| 7205776 | Capacitance measuring apparatus and method, and program Whether a human body is touching or not is detected highly accurately at high speed. Switch SW1 is turned on to charge condenser Ca by power supply Vcc. The switch SW1 is turned off to transfer the electric charge charged in the condenser Ca to condens... | 04/17/2007 |
| 7176699 | Auto-adjustment of RC cells within a circuit An integrated circuit having a first couple of components R and C, at least a second couple of components R1–R3 and C′1–C′2 and a calibration circuit. The couple of componets form an RC cell of which one component ... | 02/13/2007 |
| 7173438 | Measuring capacitance A method for determining capacitance includes alternately charging a capacitor to a first voltage and discharging the capacitor to a second voltage, generating an output signal having a frequency that is a function of a time period, and determining the capacitance b... | 02/06/2007 |
| 7154255 | Consumable product and device for identifying the same A device for identifying consumable products including a main unit including an electronic circuit, and a consumable product detachably connected to the main unit. The consumable product includes a property-varying analog element whose analog value of electric prope... | 12/26/2006 |
| 7148697 | System and method for measuring electrical characteristics of a capacitor Disclosed are a system and method for measuring electrical characteristics of a capacitor. A measurement assembly can include a constant current assembly for selectively charging and discharging the capacitor and a counter incremented during a measurement period of ... | 12/12/2006 |
| 7129712 | Attofarad capacitance measurement An electrical circuit for determining a capacitance is described. The electrical circuit includes a first device, a rectifying circuit and a feedback circuit. The first device has a first terminal and a second terminal. The first device has a first unknown capacitan... | 10/31/2006 |
| 7116117 | Capacitive sensor A capacitive sensor includes: a first sensing electrode connected to a first reference capacitor in which is stored reference electric charge; a second sensing electrode connected to a second reference capacitor in which is stored reference electric charge; and a sh... | 10/03/2006 |
| 7095667 | Noise resistant small signal sensing circuit for a memory device Apparatus and method for data sensing circuitry that uses averaging to sense small differences in signal levels representing data states. The apparatus periodically switches the coupling of input terminals and output terminals of an integrator circuit from a first c... | 08/22/2006 |
| 7071710 | Extraction of interconnect parasitics The apparatus for detecting the effects of interconnect resistance and capacitance (RC) in a logic circuit includes a first ring oscillator with the interconnect RC parasitics in a logic circuit and a minimum reference ring oscillator without the interconnect RC par... | 07/04/2006 |
| 7071711 | Method and device for determining the ratio between an RC time constant in an integrated circuit and a set value A method and device for determining the ratio between the actual value of an RC time constant of an RC network embodied in an integrated circuit and a set value of the RC time constant includes first and second reference RC networks each having a resistor and a capa... | 07/04/2006 |
| 7053568 | Battery-powered vehicle with AC driven traction and pump motors for mining applications A battery-powered vehicle for transporting a mined payload or supplies over the roadways existing in or around an underground mine, includes variable voltage, variable frequency drivers that convert DC voltage from a battery into an AC voltage for driving AC inducti... | 05/30/2006 |
| 7049828 | Capacitive sensor for determining linear or angular position A capacitive sensor includes an electrode member with two spaced-apart electrodes and an air gap therebetween. A position reference plate, which can be straight for sensing linear position or curvilinear for sensing angular position, is disposed in the air gap, with... | 05/23/2006 |
| 7051305 | Delay estimation using edge specific miller capacitances A method of estimating delay which includes configuring a first signal path and second signal path such that the first signal path is a victim signal path and the second signal path is an aggressor signal path, calculating Miller factors between the victim signal pa... | 05/23/2006 |
| 7026808 | Method and apparatus for providing information from a speed and direction sensor A method and apparatus for providing information from a speed and direction sensor is disclosed. The method and apparatus detect the presence of a ferromagnetic object as it moves past a sensor. The sensor determines speed and direction information regarding the fer... | 04/11/2006 |
| 7009901 | System and method for sensing data stored in a resistive memory element using one bit of a digital count A method and system sense the logic state of an unknown initial data bit stored in a selected resistive memory cell. According to one method, a first count representing the logic state of the unknown initial data bit stored in the selected memory cell is generated. ... | 03/07/2006 |
| 6995670 | Control system with capacitive detector A capacitive sensor system for controlling operation of a device in response to a rate of change in capacitance due to motion of a proximate object includes at least two sense electrodes disposed on a surface and a phase locked loop, including a voltage controlled o... | 02/07/2006 |
| 6954390 | Noise resistant small signal sensing circuit for a memory device Apparatus and method for data sensing circuitry that uses averaging to sense small differences in signal levels representing data states. The apparatus periodically switches the coupling of input terminals and output terminals of an integrator circuit from a first c... | 10/11/2005 |
| 6954391 | Noise resistant small signal sensing circuit for a memory device Apparatus and method for data sensing circuitry that uses averaging to sense small differences in signal levels representing data states. The apparatus periodically switches the coupling of input terminals and output terminals of an integrator circuit from a first c... | 10/11/2005 |
| 6940293 | Modeling miller effect in static timing analysis A method is contemplated. According to the method, capacitances in a first resistance/capacitance (RC) extraction corresponding to a circuit are modified. Each capacitance is modified to estimate Miller effect on that capacitance. A ratio of a total capacitance on a... | 09/06/2005 |
| 6917207 | Double time-constant for electrostatic discharge clamping A method and apparatus is provided for clamping of an electrostatic discharge using multiple time-constants. A rise in a voltage level is detected. A first time-constant is provided to determine whether the rise in the voltage level is caused by an electrostatic eve... | 07/12/2005 |
| 6853201 | Method for testing a capacitive actuator A capacitive actuating element is driven using a control signal of duration T1. This duration T1 is related to prescribed or measured values for charging, discharging and open periods T2, T3 and T4: (T1+T3−T2−T4)≦|X| and is compared with a magnitude (li... | 02/08/2005 |
| 6819123 | Extraction of interconnect parasitics The apparatus for detecting the effects of interconnect resistance and capacitance (RC) in a logic circuit includes a first ring oscillator with the interconnect RC parasitics in a logic circuit and a minimum reference ring oscillator without the interconnect RC par... | 11/16/2004 |
| 6791343 | Modeling miller effect in static timing analysis A method is contemplated. According to the method, capacitances in a first resistance/capacitance (RC) extraction corresponding to a circuit are modified. Each capacitance is modified to estimate Miller effect on that capacitance. A ratio of a total capacitance on a... | 09/14/2004 |
| 6775627 | Method and/or software for determining the capacitance of an analog/mixed signal circuit A method for determining the capacitance of an analog/mixed signal circuit, comprising the steps of (A) acquiring a capacitance at a plurality of different input slope rates, (B) verifying each acquired capacitance, (C) determining an average capacitance of said plu... | 08/10/2004 |
| 6771082 | Resistance circuit stabilization and pulse duration control systems for electroporation instruments Systems, methods and apparatus for stabilizing resistance measurements in electroporation systems so as to achieve high-accuracy measurements, and for controlling the pulse duration, or time constant, of electroporation pulses. Circuitry is provided to accurately de... | 08/03/2004 |
