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US20110184681 Authentication device for full intact wine bottles  
Methods, device and systems for identifying or fingerprinting an intact bottle of wine are provided. Such methods are useful in authenticating a bottle of wine.
US20070233409 Spectrum analyzer with cascadable trace math functions  
A spectrum analyzer is disclosed. The analyzer includes a detector, a trace memory, a controller, a trace math processor and a display. The controller generates a plurality of frequency selection...
US20110115497 SELECTIVELY ACTUATING WIRELESS, PASSIVE IMPLANTABLE SENSOR  
A wireless sensor having a primary passive electrical resonant circuit that has an intrinsic electrical property that is variable in response to a characteristic of a patient and a secondary...
US20060208897 Capacitive RFID tag encoder  
In one embodiment, a capacitive encoding system is provided that includes a first conductive element; a second conductive element; and a capacitive encoder adapted to drive the first conductive...
US20120226458 SFP - DIAGNOSTIC  
A small form-factor pluggable (SFP) unit having signal diagnostic capabilities comprises one or more diagnostic measurement points. At least one of the one or more diagnostic measurement points...
US20100223019 Measuring Filling Level by Means of Evaluating an Echo Curve  
A method for filling level measuring comprises generating an echo curve and analysing the echo curve by means of an analysis method. The analysis method is at least one analysis method selected...
US20060116834 Test method and test apparatus for digital-analog converter  
A cyclic pattern data is input into a digital-analog (DA) converter that converts predetermined digital data into analog data. The cyclic pattern data has a symmetrical waveform when output from...
US20130116957 FINE FREQUENCY OFFSET ESTIMATION METHOD AND APPARATUS  
The disclosure discloses a fine frequency offset estimation method and apparatus. The method comprises: calculating a first accumulated estimation value corresponding to a first multiframe state...
US20110022342 DISTRIBUTED SPECTRUM SENSING  
In summary, the invention relates to a device, a system, a method and a computer program for spectrum sensing. A detection procedure for detecting a signal of interest or an event by using a...
US20100102811 NMR, MRI, and Spectroscopic MRI in Inhomogeneous Fields  
A method for locally creating effectively homogeneous or “clean” magnetic field gradients (of high uniformity) for imaging (with NMR, MRI, or spectroscopic MRI) both in in-situ and ex-situ systems...
US20080215272 Fluorescence Microscope and Fluorescence Microscope Method  
To increase spatial resolution by observing a sample based on saturated fluorescence components. A fluorescence microscope according to the present invention includes: a laser light source 10...
US20120109560 Remote Interrogation of a Passive Wireless Antenna Sensor  
The condition of a structure using remote interrogation of a multi-state passive wireless antenna sensor that has a known resonant frequency when mounted on the structure. The passive wireless...
US20150142358 RAPID INTERROGATION METHOD FOR ELASTIC WAVE RESONANT DEVICES  
A method for interrogating an elastic wave device includes probing the response of a piezoelectric resonant device at a single frequency alternately on either side of a previously determined first...
US20120253720 METHOD TO MINIMIZE COMMON RAIL PRESSURE IRREGULARITIES DUE TO ALIASING EFFECT ON BATTERY VOLTAGE MONITORING  
A method is provided to minimize common rail pressure irregularities due to aliasing effect on battery voltage monitoring in a digital electronic control unit that is capable of PWM regulations of...
US20080234959 Pitch Extraction with Inhibition of Harmonics and Sub-harmonics of the Fundamental Frequency  
The fundamental frequency of a harmonic signal is estimated by forming a fundamental frequency hypothesis (f0′). A comb filter is provided based on the fundamental frequency hypothesis. The...
US20120084035 SYSTEM AND METHOD FOR FREQUENCY MEASUREMENT BASED ON QUADRATIC FORMS  
A system and methods for determining points for an algorithm to calculate the frequency of a waveform measured from a monitoring device. Data points are measured from the waveform. A last point of...
US20140303918 HANDLING RESONANCES IN A POWER TRANSMISSION SYSTEM  
A method, resonance handling device and computer program product are disclosed for handling resonances in a power transmission system. The resonance handling device can include a resonance...
US20120283974 METHOD, SYSTEM AND APPARATUS FOR LOCATING AND DETECTING INCOHERENT RADIO NOISE TYPICAL OF ILLEGAL PLANT GROW OPERATIONS  
A method and apparatus for detecting and locating illegal grow operations. The method involves using a radio receiver coupled to more than one antenna to detect a radio frequency signature...
US20090287437 COMPLEX PHASE LOCKED LOOP  
A method of estimating an instantaneous frequency of a component of interest in a complex primary signal via a complex Phase Locked Loop (PLL). A complex incident signal including a complex...
US20140324372 SYSTEM AND METHOD FOR ANALYZING VOLTAGE BREAKDOWN IN ELECTROSTATIC CHUCKS  
A system, instructions and a method of determining when an impending failure is likely to occur absent corrective action are disclosed. The system samples the output of a power supply which powers...
US20090076752 FREE-STATE MODAL FREQUENCY RESPONSE TESTING  
An apparatus and associated method is provided for suspending a test object in a gravitational field from a support member, exciting the test object by noncontactingly engaging it with a...
US20100012874 Rotary Encoder Frequency Analysis  
A novel method for diagnosing problems with a valve actuator or other rotary equipment. Frequency analysis is performed upon speed, position, torque, thrust, or vibration data. Speed or position...
US20090254291 Acquiring Phasors Outside the Frequency Tracking Range for Power Protective Relays  
A system and method for acquiring phasors outside of the frequency tracking range for power protective relays. As the frequency of a power system varies from the rated frequency, phasors...
US20090299540 EMERGENCY FREQUENCY LOAD SHEDDING SCHEME  
A load shedding system and method for controlling imbalances in a power system includes a signal generator adapted to generate a signal representative of a local system, and a modifying circuit...
US20080082278 Realtime spectrum trigger system on realtime oscilloscope  
A realtime spectrum trigger system on a realtime oscilloscope considers both the magnitude and phase of an input signal having a periodic component so that successive acquisitions of the input...
US20120150469 ELECTRONIC DEVICE COOLING FAN TESTING  
System and method implementations for testing a cooling fan in an electronic device are disclosed. As one example, a method of testing a cooling fan of a sample electronic device is disclosed that...
US20140369087 DETERMINING A PHASE AND A FREQUENCY OF AN ELECTRIC QUANTITY OF AN OPERATING ELECTRICAL DEVICE  
A method and an apparatus for determining a phase and a frequency of an electric quantity being associated with an operation of an electrical device are described. The method comprises extracting...
US20060190201 Derivation of composite step-function response  
A method of deriving a composite step function response from a band-limited transmission channel frequency response includes the steps of obtaining a time domain response from the band limited...
US20050114056 Identifying process and temperature of silicon chips  
Systems and techniques are disclosed relating to communications. The systems and techniques include determining the temperature and process speed of chips used in communications devices. The...
US20090251223 TECHNIQUES FOR CHARACTERIZING PERFORMANCE OF TRANSISTORS IN INTEGRATED CIRCUIT DEVICES  
A method, system and computer program product for characterizing FET transistors in an electronic circuit (IC) device using Performance Screen Ring Oscillator (PSRO) techniques. During PSRO...
US20060155491 Frequency determination  
Simple conventional frequency measurement circuits comprise two counters as essential elements. In such counters a problem may occur that the count value has a relative error of ±1/N,...
US20130191062 Domain Identification and Separation for Precision Measurement of Waveforms  
A machine-implemented method for computerized digital signal processing obtains a digital signal from data storage or from conversion of an analog signal and determines, from the digital signal,...
US20080097712 Test Equipment and Portable Test Device  
The present invention relates to an equipment, device (10; 110) and apparatus for applying electrical stimuli to a system and acquiring a system response. According to the present invention there...
US20120072147 SELF CHECK-TYPE FLAME DETECTOR  
A self check-type flame detector includes a casing provided with a monitoring window formed therein. A wavelength generation unit is disposed inside the casing and generates a wavelength in a...
US20110004430 EDDY CURRENT DETECTION AND COMPENSATION  
A distortion compensation method includes determining an undisturbed phase for at least one of a first position indication signal and a second position indication signal. The method includes...
US20090063073 Method for ascertaining a mains frequency in a voltage signal, and mains analyzer  
To ascertain a mains frequency from a voltage signal which has a particularly high proportion of harmonics, the discrete Fourier transform is used in at least one embodiment to calculate two...
US20070185670 Methods of Measuring Frequencies Including Charging Electrical Circuits  
A method of measuring a frequency of an input clock signal may include generating an output pulse responsive to an edge of the input clock signal, and charging an electrical circuit responsive to...
US20100249881 Channel Assessment And Selection For Wireless Communication Between Medical Devices  
This disclosure relates to channel assessment and selection for wireless communication between two or more medical devices, such as between an implantable medical device (IMD) and a non-implanted...
US20080010019 High speed spectrum analyzer  
The invention provides a device for analyzing the spectral content of a sample in a sequential manner at high speed.
US20100225336 Object proximity detector and object position detector  
The present invention offers an object proximity detector and object position detector. The variation of frequency of an oscillator is used to detect the proximity of an object to a sensor plate....
US20080109179 Signal measuring apparatus and semiconductor testing apparatus  
In order to provide a signal measuring apparatus which satisfies multiple performances at a high level all together, the signal measuring apparatus includes: DC performance; noise performance;...
US20140278171 Frequency Adaptive Line Voltage Filters  
A method for reducing noise from an electrical signal includes: obtaining a sampling rate for the electrical signal. The sampling rate is a rate at which voltage readings are obtained for the...
US20090259423 POWER SUPPLY APPARATUS FOR OPERATION AND RESONANT FREQUENCY SEARCHING METHOD  
A power supply apparatus for operation supplies a drive signal of a resonant frequency to a surgical instrument to drive the instrument. A recognition section recognizes a surgical instrument...
US20060085151 Motor control device  
A technique for smoothly speed-controlling a speed of a motor whose time constant is relatively small, such as a supersonic motor, under a relatively rough speed control profile and a simple...
US20110191048 Method and System for a Comprehensive Analysis of Low Frequency Oscillation  
A method and a system for a comprehensive analysis of low frequency oscillation. The method includes: firstly, initiating a wide area measurement system WAMS (71) to perform real-time monitoring;...
US20090125261 METHOD FOR ANALYZING AC VOLTAGE SIGNALS  
A method is disclosed for efficiently analyzing an AC voltage signal with a transformation which transforms the signal from a representation in the time-domain to a representation in the...
US20140229133 Method for Estimating Frequencies and Phases in Three Phase Power System  
Parameters of a three phase mixture of sinusoids with harmonic distortion are estimated by first acquiring samples of the signal for no more than a quarter cycle of the signal, a classifier is...
US20070265791 TUNABLE FILTER FOR TONE DETECTION  
Apparatus arranged to analyse a signal comprising a series of symbols, the apparatus comprising means for calculating a metric of said signal, filter means for filtering said signal, means for...
US20080015801 METHOD AND APPARATUS FOR NEURAL ACTIVITY IDENTIFICATION  
A method and apparatus is provided for creating and recognizing a USN (Unique Signature Number) from an analysis of living entity's (e.g. person, animal or other multi-cellular being having neural...
US20120303307 CIRCUIT AND METHOD FOR DETECTING OSCILLATING FREQUENCY DRIFT  
An oscillating frequency drift detecting method, which comprises: receiving an oscillating signal with an oscillating frequency, wherein the oscillating signal is generated by a crystal...

Matches 1 - 50 out of 100 1 2 >