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8185358 |
Apparatus for measuring distortion power quality index and method of operating the apparatus
A method of measuring a power quality index. A total current waveform of an ingress from a customer, and a current waveform and a voltage waveform of each of at least one load installed at the...
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8185334 |
Methods and systems for filtering a digital signal
Aspects of the present invention are related to systems and methods for removing spikes and/or speckle noise from a digital signal. In some embodiments of the present invention, an input signal is...
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8184164 |
Method for measuring multimedia video communication quality
A method for measuring multimedia communication quality is disclosed. The multimedia video communication quality may be objectively reflected through the embedment and extraction of digital...
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8181058 |
Clock-data-recovery technique for high-speed links
A receiver circuit is described. In the receiver circuit, an analog-to-digital converter (ADC) generates first samples of a data signal based on a first clock signal, and a clock-data-recovery...
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8175828 |
Evaluation apparatus, evaluation method, program, recording medium and electronic device
Provided is an evaluation apparatus that evaluates a characteristic of a propagation apparatus propagating a signal, comprising an output signal measuring section that measures a probability...
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8175829 |
Analyzer for signal anomalies
A signal analyzer includes a divergence detector for detecting periodic interference in a signal, an information detector for detecting a random event in the signal, and output circuitry for...
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8170157 |
Low jitter communication system
The communication system having a transmitter and a receiver, wherein the transmitter and the receiver are coupled by a clock channel and a data channel, wherein the clock channel is shorter than...
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8170814 |
Systems and methods to determine an impedance mismatch
In a particular embodiment, a method is disclosed that includes receiving data related to a customer premise equipment (CPE) device and determining an impedance mismatch between a transmission line...
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8166380 |
Method and apparatus for identifying paths having appropriate lengths for fault simulation
A fault analysis apparatus includes: an extracting unit that extracts a segment including a point of fault from a plurality of paths in a target circuit; a detecting unit that detects a candidate...
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8165836 |
Measurement apparatus and computer readable medium storing program for measuring error of a quadrature demodulator or quadrature modulator
A measurement apparatus that measures, as an error under measurement, at least one of a gain error and a phase error of a quadrature demodulator or a quadrature modulator as a measurement target....
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8155927 |
Method and apparatus for improving noise discrimination in multiple sensor pairs
Noise discrimination in signals from a plurality of sensors is conducted by enhancing the phase difference in the signals such that off-axis pick-up is suppressed while on-axis pick-up is enhanced....
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8155906 |
Method and system for curve quality control
A method of analysis wherein molecular interactions at one or more sensing surface areas are detected and respective response curves representing the progress of each interaction with time are...
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8144756 |
Jitter measuring system and method
The present invention relates to a jitter measuring system, comprising: a delay circuit for receiving a clock signal and delaying the clock signal to generate a delay signal; a jitter amplifier for...
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8145442 |
Fast and accurate estimation of gate output loading
Embodiments of a computer system, a method, an integrated circuit and a computer-program product (i.e., software) for use with the computer system are described. These devices and techniques may be...
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8135564 |
Filtering techniques to remove noise from a periodic signal and Irms calculations
A signal filtering technique is designed to remove the effects of a periodic, low-frequency noise signal from a signal of interest. A signal waveform is sampled at different points of a number of...
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8135550 |
System for monitoring and assessing electrical circuits and method of operation
A system for collecting data and monitoring the operation of electrical circuits, such as branch circuits at a substation is provided. The system collects data from a plurality of sensors coupled...
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8131285 |
Transmission/reception channel matching apparatus for mobile communication terminal and mobile phone test equipment
Disclosed herein is a transmission/reception channel matching apparatus for a mobile communication terminal and a mobile phone test equipment. The transmission/reception channel matching apparatus...
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8121803 |
Communication channel calibration using feedback
A method for calibrating a communication channel coupling first and second components includes transmitting a data signal from the first component to the second component on the communication...
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8121806 |
Neutralizing electromagentic noise for a capacitive input device
A method of capturing user control inputs for an electronic device comprises sampling an input measurement signal at a capacitive input sensor of the electronic device to capture user control...
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8106618 |
Method and device for calibrating a position sensor placed on a shaft of a permanent magnet synchronous motor
In a method and apparatus for calibrating a position sensor mounted on the shaft of a permanent magnet synchronous motor, to control the position of a rotor of the permanent magnet synchronous...
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8103469 |
Transceiver link bit error rate prediction
A method for predicting a predetermined bit error rate for an actual data transmission from a transmitter to a target receiver over an actual backplane link is disclosed. The method involves...
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8094196 |
Video matching device, method, and program
A matched state detection unit (33) of a video matching device (100) detects a reference video frame, of the respective video frames of a reference video (1) and degraded video (2B), which is in a...
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8068538 |
Jitter measuring apparatus, jitter measuring method and test apparatus
There is provided a jitter measuring apparatus for measuring jitter in a signal-under-measurement, having a pulse generator for outputting a pulse signal having a pulse width set in advance...
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8068435 |
Rate adaptive modem
A communication system transmitting signals over a network using a transmission waveform in which a plurality of data packets are transmitted in a payload field of a transmission frame, the system...
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8065100 |
Method and a system for cable or subscriber loop investigation performing loop topology identification
A system and method for using loop topology identification to investigate a transmission line having a plurality of cable segments. At a measurement plane for each segment, a probing signal is...
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8065141 |
Apparatus and method for processing signal, recording medium, and program
A signal processing apparatus includes a decoding unit, an analyzing unit, a synthesizing unit, and a selecting unit. The decoding unit decodes an input encoded audio signal and outputs a playback...
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8060326 |
Measuring apparatus, measuring method and test apparatus
Provided is a measurement apparatus including a first timing detecting section that detects first change timings of a signal under measurement, a second timing detecting section that detects second...
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8055969 |
Multi-strobe circuit
A multi-strobe circuit that latches a signal to be tested, an evaluation target, at each edge timing of a multi-strobe signal having a plurality of edges. An oscillator oscillates at a...
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8046182 |
Method and system for digital triggering of signals on the basis of two triggering events separated by a time difference
An approach is provided for digital triggering a recording of one or several signals sampled at individual sampling instants on a digital oscilloscope. The triggering is carried out when the...
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8027797 |
Methods and apparatus for determining a switching history time constant in an integrated circuit device
Techniques for inline measurement of a switching history time constant in an integrated circuit device are provided. A series of pulses is launched into a first stage of a delay chain comprising a...
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8027796 |
S/N ratio measuring method in eddy current testing on internal surface of pipe or tube
A method in accordance with the present invention includes the steps of: separating an eddy current signal into an X-axis component and a Y-axis component to obtain signal waveform data of the...
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8024140 |
Waveform anomoly detection and notification systems and methods
Systems and methods to automatically detect anomalies in waveforms. In addition, the systems and methods alert a human operator of the anomaly and provide suggestions as to the cause of the problem...
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8024142 |
Method and system for analyzing signal waveforms
A method and system for analyzing a signal waveform that comprises digitally sampling a signal at a periodic sampling interval, and accumulating a count of samples of the signal at a given logic...
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8005222 |
Radio communication system, radio communication device, radio communication method, and computer program
A scrambling initial value is shared without deteriorating transmission efficiency. On the transmission side, a scrambling initial value is created based on a part of a physical layer header not...
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8006141 |
Method for speeding up serial data tolerance testing
A receive test accelerator retrieves an adjusted jitter amount and an adjusted test time in which to test a device. The adjusted jitter amount and the adjusted test time correspond to an adjusted...
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8004405 |
Alarm system
It is provided an alarm system for underground boundary intrusion detection, and methods for deployment and operation. The deployment method includes constructing of a computing-and-empowering...
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8000429 |
Jitter correction method and circuit
In a jitter correction method and circuit, combination data combined by adding, to referenced data, an end bit of data 1 clock prior to and a head bit of data 1 clock subsequent to the referenced...
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8000914 |
Systems and methods for electromechanical oscillation monitoring
Systems and methods for electromechanical oscillation monitoring are disclosed herein. In one embodiment, a method for monitoring electromechanical oscillation in a power system includes forming a...
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8000931 |
Deterministic component model judging apparatus, judging method, program, recording medium, test system and electronic device
Provided is a deterministic component model determining apparatus that determines a type of a deterministic component included in a probability density function supplied thereto, comprising a...
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8000916 |
System and method for evaluating high frequency time domain in embedded device probing
A system and associated method for evaluating a high-frequency signal at a point of interest on a signal path from a remote signal at a remote pickup point on the signal path. The point of interest...
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7996168 |
Method and apparatus for time vernier calibration
Disclosed is a method and apparatus for calibrating a time vernier in an automatic test equipment (ATE) system, the method including generating a data signal and a reference signal whose periods...
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7991569 |
Mobility normalizer, normalizing method, normalizing program, self-organized map, substance detecting method, detecting program, detection rule creating method, and data structure
The object of the present invention is to provide an apparatus, a method, a program, and a self-organizing map which are capable of normalizing mobility without using a marker, as well as a...
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7987059 |
Real-time power system oscillation detection using modal analysis
A power system oscillation detection device is provided for use in an electric power system. A plurality of sample signals are acquired from the electrical power system via a plurality of...
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7979220 |
System and method for monitoring power damping compliance of a power generation unit
A system and method for monitoring the power damping compliance of a power generation unit comprises a measurement unit that is configured to be coupled to a power generation unit to identify the...
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7978756 |
Systems and methods for monitoring impulse noise
Systems and methods for monitoring impulse noise are described. At least one embodiment is a method, which comprises detecting whether impulse noise is present and in response to detecting the...
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7974799 |
Backboard transmission method, backboard transmission apparatus, and substrate unit
A substrate unit and other substrate unit are mounted with integrated circuits and are connected to a backboard via respective connectors. The substrate unit monitors a signal wave passed between...
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7970565 |
Measuring device, test device, electronic device, program, and recording medium
A measurement apparatus that measures a signal under measurement, including a strobe timing generator that sequentially generates strobes arranged at substantially even time intervals, a level...
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7965763 |
Determining a bit error rate (BER) using interpolation and superposition
In one embodiment, the present invention includes a method for receiving a jitter profile and a step response of a channel coupled between a transmitter and a receiver and a bit pattern to be...
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7965899 |
Methods for locating and decoding distorted two-dimensional matrix symbols
A method is presented for processing an image of a two-dimensional (2D) matrix symbol having a plurality of data modules and a discontinuous finder pattern, each distorted by “donut effects”. A res...
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7965649 |
Apparatus and method for feedback of subcarrier quality estimation in an OFDM/OFDMA system
A method for subcarrier quality estimation in a wireless network is disclosed. The method comprises analyzing characteristics of at least some of the subcarriers of a first signal, creating...
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