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9035642 Circuits for detecting AC- or DC-coupled loads  
An integrated circuit includes an output terminal and a controller having a measurement input coupled to the output terminal, a first output adapted to couple to a current source to control a...
9031800 Power determination from separated voltage and current sensors  
Power measurement by tracking of a voltage cycle when voltage and current measurements are taken at different locations on an AC power line, with the devices taking the measurements interconnected...
9024620 Polarity detection circuit  
The polarity detection circuit includes a first diode with anode receiving a first phase of the AC power supply voltage and a second diode with anode receiving a second phase, opposite the first...
9018964 Powder sensor  
A powder sensor includes a piezoelectric element, an oscillator circuit, a first square wave signal generator, a second square wave signal generator, and a phase judgment circuit. The oscillator...
9013171 Method and apparatus for detecting a zero-voltage condition across four quadrant switches  
A method and apparatus for detecting a zero-voltage condition. In one embodiment, the method comprises generating a first current that is proportional to a voltage across a four-quadrant (4Q)...
9007056 Monitoring device and monitoring method for rotary encoder  
Disclosed is a monitoring device for a rotary encoder electronically connectable to the monitoring device. A pulse generating unit generates a comparison pulse signal by extracting a portion...
8988081 Determining propagation delay  
Techniques for obtaining a propagation delay through first and second transmission lines having substantially equal propagation delays may include: providing a first signal to the first...
8988060 Power control system and method  
A system and method for controlling an electrical device is provided. The method comprises receiving three phase power from a source, decomposing signals representative of power in each phase of...
8981757 Phase detector  
A phase detector (100, 400, 800) comprising a balun (150) and input ports (116) at each of the balun's balanced ports. The phase detector (100, 400, 800) has four devices (105, 115, 110, 155) for...
8970204 Long range phasing voltmeter  
A wireless phasing voltmeter determines the phase difference between the voltage carried by a reference electrical conductor and a field conductor. The voltage signal from the reference conductor...
8963534 Triaxial piezoelectric sensor  
A triaxial piezoelectric sensor includes a PVDF layer, a first line layer, and a second line layer. The PVDF layer has multiple first electrodes and multiple second electrodes. Each first...
8866511 Matrix phase detector  
A method and a system are provided for clock phase detection. A first set of delayed versions of a first clock signal is generated and a second set of delayed versions of a second clock signal is...
8847604 Semiconductor device with a test circuit and a reference circuit  
Implementations are presented herein that include a test circuit and a reference circuit.
8841899 Electro-magnetic tomography using modulated signal  
Disclosed is an electro-magnetic tomography including: a modulator configured to modulate a generated transmit reference signal using a pseudo-noise signal; a transmitter configured to transmit...
8797018 Apparatus and method for identifying the phase and terminal for power system devices  
An apparatus and method for identifying the current and voltage phase and terminal for power system devices is described. In one aspect of the present invention, the respective current phase and...
8791688 Method and apparatus for detecting the phase wiring of any arbitrary unknown phase voltage relative to a reference phase voltage  
The technology relates to detecting the wiring phase of an unknown phase voltage relative to a reference phase voltage in an electric power distribution system having a polyphase power line. In...
8774977 Multiphase electrical power construction and assignment at minimal loss  
In a multiphase electrical power construction and assignment, a processor: determines a phase and voltage configuration for bi-directional power device pairs; determines a given bi-directional...
8666701 Accurate and cost efficient linear hall sensor with digital output  
One embodiment of the present invention relates to a magnetic sensor circuit having a magnetic field sensor device configured to generate a digital signal proportional to an applied magnetic...
8638088 Load detection for switched-mode power converters  
In one embodiment, a method for detecting a load in a switched-mode power converter is provided. The switched-mode power converter includes high and low-side power switches which are configured to...
8633033 Volumetric induction phase shift detection system for determining tissue water content properties  
A method and apparatus of determining the condition of a bulk tissue sample, by: positioning a bulk tissue sample between a pair of induction coils (or antennae); passing a spectrum of alternating...
8624578 Branch current monitor with configuration  
A tool for configuring a branch current monitor facilitates mapping the connections of branch circuits to voltage sources in a power distribution panel.
8604773 Receiving apparatus, test apparatus, receiving method, and test method  
Provided is a receiving method and a receiving apparatus comprising a multi-strobe generating section that generates a multi-strobe including a plurality of strobes having different phases with...
8598496 Method for testing the operation of a heating element used for an activated carbon filter  
The invention relates to a method for testing the operation of an electric heating element which is used for heating activated carbon of an activated carbon filter and/or air which is guided...
8587289 Method for determining the offset of a periodic signal  
A method for determining an offset of a periodic signal is provided, wherein an offset value caused by a level change of the periodic signal is suppressed. The periodic signal is fed to first and...
8575915 Power control system and method  
A system and method for controlling an electrical device is provided. The method includes receiving three phase power from a source, decomposing signals representative of power in each phase of...
8558534 Rotational angle detection device and electric power steering system  
An ECU detects a steering angle that is an absolute angle based on a sine signal and a cosine signal that are output from a steering sensor. The ECU includes a three-phase pulse generator that...
8531176 Driving an electronic instrument  
Circuitry includes a pre-amplifier having a differential output, where the differential output corresponds to a common mode voltage; a multiplexer including sets of transistors, each of which has...
8519719 System for complex impedance measurement  
A measurement system is provided for measuring a complex transfer function of a system under test. The measurement system comprises a signal source for generating an input signal to be applied to...
8513941 Power detection regulation device  
A power detection regulation device including a power detection signal generator, a power state detector and a regulated output unit is disclosed. The power detection signal generator receives the...
8476892 Core recognition system and core recognition method  
An object of the invention is to prevent a human error, greatly reducing man-hours and to securely identify a core. To achieve the object, a request for a serial number is first made via a...
8473248 Test apparatus and test method  
A first transform unit transforms clock change point information which indicates the change timing of a clock signal into information with respect to the frequency domain thereof so as to generate...
8456150 Hand-held phase-shift detector for sensor applications  
The invention is directed to a novel phase-shift detector capable of interfacing with an array of sensors. The detector is light-weight, portable and capable of fitting within the palm of a hand....
8436604 Measuring apparatus, parallel measuring apparatus, testing apparatus and electronic device  
Provided is a measurement apparatus that measures a signal under measurement, comprising a first oscillation circuit that receives one pulse of the signal under measurement and begins oscillating...
8405339 System and method for detecting fault in an AC machine  
A system and method for detecting a rotor fault condition in an AC induction machine is disclosed. The system includes a processor programmed to receive voltage and current data from an AC...
8400141 Apparatus for determining and/or monitoring a process variable  
An apparatus for determining and/or monitoring at least one process variable. The apparatus includes: at least one energy input, via which the apparatus receives energy for operation of the...
8390313 Semiconductor integrated circuit device  
When an operation of a specified one of monitor circuits is defective or any of elements forming a ring oscillator in each of the monitor circuits has characteristic abnormality, if voltage...
8368383 Method for testing a variable digital delay line and a device having variable digital delay line testing capabilities  
A device and a method for testing a variable digital delay line that includes multiple taps. The method includes providing, an input signal to the variable digital delay line and finding, for each...
8361391 Volumetric induction phase shift detection system for determining tissue water content properties  
A method and apparatus of determining the condition of a bulk tissue sample, by: positioning a bulk tissue sample between a pair of induction coils (or antennae); passing a spectrum of alternating...
8339120 Measurement apparatus, reproduction apparatus, and measurement method  
A measurement apparatus includes a moving average calculation section and a convergence judgment section. The moving average calculation section calculates a moving average by inputting a phase...
8319490 Method in connection with frequency converter  
A method of determining a rotational state of a three-phase alternating voltage supply which is connected to a converter and rotating in an uncontrolled manner, wherein the converter is connected...
8314620 Systems and methods for online phase calibration  
A system for online relative phase calibration is provided. The system includes at least one excitation source configured to generate multiple excitation signals. The system also includes at least...
8285508 Signal processing apparatus and signal processing method  
An apparatus includes a test signal generation unit supplying test signals to an orthogonal modulator and a control unit that based on a result of decision by comparison and decision of detection...
8283911 Long range phasing voltmeter  
A long range wireless phasing voltmeter determines the phase difference between the time-varying voltage carried on a reference electrical conductor and another, field conductor. The voltage...
8274272 Programmable delay module testing device and methods thereof  
A data processing device is configured so that, in a test mode of operation, the phase of an output signal of a second programmable delay module (PDM) is based on the phase of the input signal of...
8274037 Automatic calibration technique for time of flight (TOF) transceivers  
A system and method for automatically calibrating a Time-of-Flight (TOF) transceiver system for proximity/motion detection, is provided. Moreover, the system comprises a component that senses a...
8258775 Method and apparatus for determining phase error between clock signals  
A phase error circuit including phase difference logic and delay and register logic. The phase difference logic provides a pulse difference signal including at least one difference pulse...
8217640 Method and device for determining the phases in a multi-phase electrical system  
A method and device for determining the phases in a multi-phase electrical system includes detecting a first waveform on a phase of the multi-phase system In a first position of the multi-phase...
8217683 Phase-detector for detecting phase difference of [PI]2N  
A basic symmetric Π/2 phase-detector receives four control signals that control a differential current at the detector's output. Each respective control signal is a linear combination of a...
8198883 Semiconductor device, internal circuit control signal measurement circuit, and delay time measurement method  
In a semiconductor device manufactured in a semiconductor chip, an internal circuit generates first and second internal circuit control signals which are produced as a delay time measurement start...
8185328 Device, method, and program for measuring signal, and recording medium  
Differences in outputs from multiple terminals are easily measured. There is provided a signal measuring device for receiving signals to be measured which are generated by modulating...

Matches 1 - 50 out of 332 1 2 3 4 5 6 7 >