Abstract: Methods and apparatuses for reducing the response time along with increasing the probability of ranging of optical rangefinders that digitize the signal waveforms obtained from the pulse echoes returned from various types of objects to be ranged, the pulse echoes being too weak to allow successful ranging from a single waveform or the objects being possibly in motion during the capture of the pulse echoes. In a first embodiment of the invention, the response time at close range of a digital optical rangefinder is reduced by using a signal averaging process wherein the number of data to be averaged varies with the distance according to a predetermined function. In a second embodiment of the invention, the probability of ranging objects in motion along the line of sight of a digital optical rangefinder is increased and the object velocity measured by performing a range shift of each acquired signal waveform prior to averaging.

Abstract: Configuration of an ultrasonic inspection system is facilitated using an ultrasound response predicted by a simulation tool. In one embodiment, estimated material properties of an object to be inspected are input to the simulation tool. Also input to the simulation tool is at least one estimated property of an ultrasonic transducer of the ultrasonic inspection. The simulation tool predicts the response of the object to ultrasound from the ultrasonic transducer. This response is dependent upon the estimated material properties of the object to be inspected and the at least one estimated property of the ultrasonic transducer. The ultrasonic inspection system is then configured dependent upon a feature of the predicted response. The system may be configured, for example, by setting the position of a time gate, selecting an appropriate ultrasonic transducer, selecting the position of the transducer to achieve good focus, or selecting parameters for signal processing.

Abstract: A design structure for a circuit for measuring the absolute duty cycle of a signal anywhere on an integrated circuit device is provided. The circuit has a plurality of substantially identical pulse shaper elements, each of which expand the pulse of an input signal whose duty cycle is to be measured by a same amount. The outputs of the pulse shaper elements may be coupled to substantially identical divider circuits whose outputs are coupled to a multiplexer that selects two inputs for output to a set of master/slave configured flip-flops, one input serving as a clock and the other as data to the flip-flops. The flip-flops sample the divider outputs selected by the multiplexer to detect if the dividers have failed or not. The outputs of the flip-flops are provided to an XOR gate which outputs a duty cycle signal indicative of the duty cycle of the input signal.

Abstract: A precharacterized cell library for EDA tools includes driver model data includes output current signals indexed by output voltages. The driver model can then generate a model output by interpolating the output current signals using the output voltage to generate an output current. The output current can then be used to generate an updated output voltage across a predetermined time increment. The output current signals can then be interpolated using the updated output voltage to generate a new output current, when can be used to update the output voltage once again across the next time increment. By repeating this process across a time frame for the model output signal, a model output current and output voltage signals can be generated that match the actual output current and voltage signals from a driver in a multi-driver system.

Abstract: A method for automatically detecting a control signal configuration of a vehicle component includes making a connection to a channel of the component, performing an electrical measurement on the channel, and identifying a control signal configuration based upon the measurement. A method for sending control signals from one vehicle component to another includes making a connection on a channel of one component, making a connection to a channel of the other component, performing electrical measurements on the channels, identifying control signal configurations based upon the measurements, and configuring a control signal interface. A control signal interface includes an input unit, a signal processing unit, and an output unit. The input and output units each can connect to a channel of a vehicle component and perform an electrical measurement. The signal processing unit can determine control commands based upon control signals.

Abstract: A mechanism is provided for measuring the absolute duty cycle of a signal anywhere on an integrated circuit device. The mechanism employs a circuit having a plurality of substantially identical pulse shaper elements, each of which expand the pulse of an input signal whose duty cycle is to be measured by a same amount. The outputs of the pulse shaper elements may be coupled to substantially identical divider circuits whose outputs are coupled to a multiplexer that selects two inputs for output to a set of master/slave configured flip-flops, one input serving as a clock and the other as data to the flip-flops. The flip-flops sample the divider outputs selected by the multiplexer to detect if the dividers have failed or not. The outputs of the flip-flops are provided to an XOR gate which outputs a duty cycle signal indicative of the duty cycle of the input signal.

Abstract: The apparatus for detecting arc occurred in chamber for plasma treatment used for manufacturing semiconductor or LCD panel comprises, a sensor module for sensing the arc; a processor module for processing data from the sensor module; wherein the sensor module includes RGB color sensor for sensing color data of the arc occurred in the chamber, the RGB color sensor is a sensor sensable at least one of red color or green color or blue color of the arc, the apparatus detects the arc by sensing data of color and chroma and brightness of the arc.

Abstract: A rectangle marker on a display of a signal analyzer simultaneously designates time and frequency intervals of data from a signal under test for analysis. The data of the signal under test is displayed as a graph having time and frequency axes. Sub-graphs show data designated by the rectangle marker as processed in the time domain, frequency domain and modulation domain. The resulting display provides an overview of the signal under test and simultaneously provides displays of measurements and analyzes for a designated portion of the data.

Abstract: A multi-carrier reflectometry device and method for on-line diagnosis of at least one transmission line. The device includes: a transmission part that includes successively: a module for parameterizing a test signal SF, such that: sF=[0, c1ej?1, c2ej?2, . . . , CN/2-1ej?N/2-1, CN/2, CN/2-1ej?N/2-1, cN/2-2ej?N/2-2, . . . , c1ej?1]T, a module for synthesising the test signal by inverse discrete Fourier transform, and a digital to analog converter, connected to the line; and a detection part that includes successively: an analog to digital converter connected to this transmission line, a discrete Fourier transform module, and an analysis module containing a deconvolution module, which also receives the test signal sF.

Abstract: A system and method for measuring and analyzing power flow parameters in RF-based excitation systems for semi-conductor plasma generators. A measuring probe (8) is connected to an RF transmission line for receiving and measuring voltage (10) and current signals (12) from the transmission line (4). A high-speed sampling process converts the measured RF voltage and current signals into digital signals. The digital signals are then processed so as to reveal fundamental and harmonic amplitude and phase information corresponding to the original RF signals. Multiple measuring probes may be inserted in the power transmission path to measure two-port parameters, and the networked probes may be interrogated to determine input impedance, output impedance, insertion loss, internal dissipation, power flow efficiency, scattering, and the effect of plasma non-linearity on the RF signal.

Abstract: Embodiments for monitoring one or more utilities consumed within a monitored area including detecting an amount of a first utility consumed by a load associated with a device and an amount of a second utility consumed by a load associated with the device. The identity of the device is determined based on the amount of the first and second utility consumed. A utility monitoring method is disclosed that includes measuring an amount of a utility consumed by a first device at a first time and an amount of a utility consumed by a second device at a second time. The identity of the first device is determined based on the measured consumption of the first and second devices at the first and second time. In certain implementations, the electricity meter uses an effective variance analysis of the conductance waveform on an electrical circuit to identify specific appliances.

Abstract: Disclosed is a method for determining an phase spectrum ?(?) of the complex spectral transfer function H(?) of a medium. In some embodiments, the method is applied for detecting or imaging an object screened by scattering medium or for determining a refractive index spectrum of a material.

Abstract: A method and apparatus for extracting a time constant from a time series of values of a signal that varies in accordance with multiple charge carrier trap defects that cause Random Telegraph Noise (RTN), using transition-based assignment of states.

Abstract: An apparatus and method for counting exercise repetitions are provided for counting exercise repetition even when an exerciser attaches the apparatus in different places and along different orientations of his or her body. The apparatus and method utilizes acceleration data along at least three axes and determines that a valid step is taken by the exerciser if at least one of acceleration profiles falls within at least one of pre-defined thresholds. Moreover, a method of identifying an optimal axis for exercise repetition measurement is disclosed by comparing the acceleration profiles of previous steps with amplitude, cycle and rhythm thresholds.

Abstract: Disclosed are various embodiments for outage detection. In one embodiment, an outage detection system includes a signal sampler configured to sample a signal on a communications link and to determine a noise level and a signal level of the sample. An outage detection system also includes a comparator configured to compare a critical value with a sum of signal and noise of the sample. An outage detection system further includes a binomial probability analyzer configured to calculate a binomial probability of false outage of the sample and the previous N samples.

Abstract: A reference mirror 21 is disposed on a table 2, a first laser displacement sensor L1 for measuring a machined surface of a workpiece W and a second laser displacement sensor L2 for measuring a reference surface of the reference mirror 21 are disposed to a tool holder 3. A measurement motion applying section 24 causes the table 2 and the tool holder 3 to relatively move in a sinusoidal trajectory, and a sensitivity calculating section 28 calculates sensitivity of the first laser displacement sensor L1 based on machined-surface displacement data and reference-surface displacement data which are measured during the relative movement. Subsequently, an actual shape data calculating section 29 corrects the machined-surface displacement data based on the calculated sensitivity, and calculates actual shape data of the machined surface by taking the difference between the corrected machined-surface displacement data and the reference-surface displacement data.

Abstract: Embodiments include systems and methods of non-coherent signal processing. For example, one embodiment includes a method of a non-coherent signal detection. The method includes receiving data indicative of a received signal, and evaluating a probability density function indicative of a signal parameter based on the received data. Evaluating the probability density function comprises identifying at least one of a plurality of terms of summation having at least one peak of the probability density function and evaluating the plurality of terms of a non-central chi-square distribution determining the signal parameter based at least in part on the received data and the calculated probability density.

Abstract: A sensor interface system interfaces a collection of one or more sensors that can sense chemical, biological, radiation, nuclear, and explosives (CBRNE) materials. The system includes one or more digital and/or analog sensor interfaces for communicating with one or more sensors including: chemical sensors, biological sensors, radiation sensors, nuclear sensors, and explosives sensors. A processor is configured to receive and process signals from the one or more digital and/or analog sensor interfaces, and when the one or more sensors include a radiation sensor and/or nuclear sensor, the processor differentiates between gamma pulses and neutron pulses, by: receiving a signal from an output of a neutron detector; analyzing a pulse shape of the signal; differentiating the pulse shape between gamma pulses and neutron pulses; and determining that the pulse shape of the signal is one of a gamma pulse and a neutron pulse.

Abstract: 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 determining an undisturbed ratio that relates the amplitude of the first position indication signal at a first frequency to the amplitude of the second position indication signal at a second frequency. The method also includes determining a disturbed amplitude of the position indication signal and adjusting a position indication based on the disturbed amplitude and phase, the undisturbed amplitude ratio, and the undisturbed phase. The method further comprises determining a relationship between the eddy current phase of the first position indication signal and the second position indication signal.

Abstract: A method of evaluating the performance of a control system using a computerized device includes calculating a ratio of a first area and a second area associated with a peak value of a signal associated with the control system, comparing the ratio with a predetermined value for the ratio, determining a cause of oscillation in the control system based on the comparison of the ratio with the predetermined value for the ratio, and providing a diagnosis of the cause of oscillation in the control system.

Abstract: One embodiment provides a system that analyzes a target electromagnetic signal radiating from a monitored system. During operation, the system monitors the target electromagnetic signal using a set of antennas to obtain a set of received target electromagnetic signals from the monitored system. Next, the system calculates a weighted mean of the received target electromagnetic signals using a first pattern-recognition model. The system then subtracts the received target electromagnetic signals from the weighted mean of the received target electromagnetic signals to obtain a set of noise-reduced signals for the monitored system. Finally, the system assesses the integrity of the monitored system by analyzing the noise-reduced signals using a second pattern-recognition model.

Abstract: An approach is provided for digital triggering a recording of one or more digitized signals on a digital oscilloscope by means of carrying out a level comparison for determining a triggering instant in each case between two successive sample values of a reference signal and a threshold values. According to the approach, at least one additional sample value of the reference signal is determined between two sequential samples of the reference signals by means of interpolation.

Abstract: A abnormality diagnosing apparatus used in a machine equipment including a rotating or sliding part relative to a stationary member includes a detecting portion 31 fixed to the rotating or sliding part or the stationary member and including a vibration sensor 32 and a temperature sensor 33, and a signal processing portion 81 for determining a state of the part from a detecting signal outputted by the detecting portion 31. The signal processing portion 81 determines presence or absence of a abnormality, or presence or absence of the abnormality and a degree of a damage of the part based on a combination of a measured result by the vibration sensor 32 and a measured result by the temperature sensor 33.

Abstract: An amplitude computing apparatus includes: a mean or median value computing unit configured to compute a mean or median value of a distribution of an input signal that changes sinusoidally; a mode value computing unit configured to compute a mode value of the distribution of the input signal; and an amplitude computing unit configured to compute a difference between the mean or median value and the mode value as an amplitude of the input signal.

Abstract: A measuring apparatus measures a signal-under-test having a signal level that changes at predetermined bit time intervals. A strobe timing generator sequentially generates strobes at even time intervals. A level comparator detects a level of the signal at a timing at which each strobe is sequentially provided. A capture memory stores a signal level output from the comparator. A signal processor calculates a measurement of the signal based on a data series including data taken at even time intervals, each larger than a bit time interval of the signal.

Abstract: A method of detecting edges of a preamplifier signal including identifying a first portion of the signal wherein each part thereof has an instantaneous slope having a first polarity, identifying a second portion immediately following the first portion wherein each part thereof has an instantaneous slope having a second opposite polarity, and identifying a third portion immediately following the second portion wherein each part thereof has an instantaneous slope having the first polarity. The method further includes determining a first difference between the magnitudes associated with an end point and a beginning point of the second segment, determining a second difference between the magnitude associated with an end point of the third segment and the magnitude associated with a beginning point of the first segment, and detecting an edge if: (i) the first difference exceeds a threshold, and (ii) the second difference exceeds a fraction of the threshold.

Abstract: A method of processing data acquired by under-sampling a chirped, sinusoidal waveform comprises complex-heterodyning the under-sampled data with a chirped signal having characteristics similar to the sinusoidal waveform to generate a demodulated signal and analyzing the demodulated signal to determine characteristics of the sinusoidal waveform.

Abstract: A frequency error estimation algorithm is presented for use in radio receivers, for example. The present algorithm utilizes irregular time intervals between pilot symbols to improve the frequency range of the estimate. First, a first phase rotation indicator comprising information on phase rotation of a received signal within a first time interval is estimated. Then, a second phase rotation indicator comprising information on phase rotation of the received signal within a second time interval of a different length than the first time interval is estimated. A frequency error estimate is calculated from the phase difference between the first phase rotation indicator and the second phase rotation indicator, for example by dividing the phase difference by the difference in the lengths of the first and the second time interval.

Abstract: Method and apparatus for improved processing for multi-channel signals. In an exemplary embodiment, an anomaly metric is computed for a multi-channel signal over a time window. The magnitude of the anomaly metric may be used to determine whether an anomaly is present in the multi-channel signal over the time window. In an exemplary embodiment, the anomaly metric may be a condition number associated with the singular values of the multi-channel signal over the time window, as further adjusted by the number of channels to produce a data condition number. Applications of the anomaly metric computation include the scrubbing of signal archives for epileptic seizure detection/prediction/counter-prediction algorithm training, pre-processing of multi-channel signals for real-time monitoring of bio-systems, and boot-up and/or adaptive self-checking of such systems during normal operation.

Abstract: One embodiment provides a system that analyzes a target electromagnetic signal radiating from a monitored system. During operation, the system monitors the target electromagnetic signal using a near-isotropic antenna that includes a set of receiving surfaces arranged in a regular polyhedron. Next, the system obtains a set of received target electromagnetic signals from the receiving surfaces. Finally, the system assesses the integrity of the monitored system by separately analyzing each of the received target electromagnetic signals.

Abstract: The present invention can restrain a jitter from being generated in a measurement result of light such as terahertz light which has transmitted through a device under test.

Abstract: A system and a method for simultaneous measurement and analysis of network signals on multiple communication networks are described. Accordingly, in one embodiment, the system accepts signals from two communication networks. The two networks may be following different protocols. A time-correlated measurement of corresponding frames of two protocols may be provided. Information pertaining to message frames of different networks may be displayed simultaneously.

Abstract: Techniques are described that generally relate to methods for detecting encryption status of a data file or data stream and selectively encrypting the data file or data stream based on the encryption status of the data file or data stream are generally disclosed. Example methods may include one or more of reading the data file or data stream from a data source, calculating a value of a property of the data file or data stream, comparing the calculated value with a threshold value to determine whether the file is encrypted or unencrypted, and encrypting files that are determined to be unencrypted.

Abstract: An electromagnetic distribution processing device calculates an electromagnetic distribution over areas that are spatially discretized. The electromagnetic distribution processing device includes an electromagnetic processing unit configured to calculate a physical amount of an electromagnetic current in each of the areas based on an electromagnetic field intensity; an electromagnetic change amount processing unit configured to calculate, for each of the areas, a temporal change amount of the physical amount of the electromagnetic current calculated by the electromagnetic processing unit; and a cumulative change amount processing unit configured to calculate, for each of the areas, a cumulative value that is obtained by accumulating the temporal change amounts of the physical amount of the electromagnetic current calculated by the electromagnetic change amount processing unit.

Abstract: The present invention is related to a method for determining a characteristic curve (9) for an electric variable (Pel, Q, ?, cos ?, IP, IQ) of a wind energy plant (1). According to the present invention, it is provided that at least one characteristic value of the electric variable (Pel, Q, ?, cos ?, IP, IQ) is measured for at least one value of the wind (vW), and for the at least one value of the wind (vW), a characteristic value of the electric variable (Pel, Q, ?, cos ?, IP, IQ) is adapted from a predetermined characteristic curve (7) containing characteristic values of the electric variable (Pel, Q, ?, cos ?, IP, IQ) as a function of different values of the wind (vW), taking into account the characteristic value measured for the at least one value of the wind (vW).

Abstract: In Internal Analysis Space analysis, assuming that no structural body and the like are placed outside of a conversion surface, an electromagnetic field distribution u0 inside of a conversion surface, on a conversion surface, and close to the outside of the conversion surface is found. In External Analysis Space analysis, on the assumption that there exists a structural body and the like outside of the conversion surface, an entire electromagnetic field distribution u is found. At this time, for the inside of the closed surface, an electric field distribution, where a differential electromagnetic field distribution e between electromagnetic field distribution u0 and electromagnetic field distribution u on the closed surface is a wave source, is found. Also at this time, for the outside of the closed surface, an electromagnetic field distribution, obtained by synthesizing electromagnetic field distribution u0 and electromagnetic field distribution e on the closed surface is found.

Abstract: A portable system having a function of measurement includes a conductive structure and a mobile communication device. The conductive structure is plugged into a earphone socket of the mobile communication device for measuring a electric signal of an object. Next, the result of the measurement can be shown on a display or broadcasted on a speaker of the mobile communication device.

Abstract: A data processing system configured to process acquired image data (e.g., as part of a diagnostic imaging apparatus) uses a signal-power estimating unit for estimating signal power by using reference data containing data different from processing-target data and a data processing unit for processing the processing-target data by using a WF (wiener_filter) based on the signal power estimated by the signal-power estimating unit.

Abstract: A jitter generating circuit wherein a simple structure can be used to generate a pattern effect jitter. A jitter generating circuit 1 comprises a driver input circuit 20 that serves as a signal analyzing unit for analyzing the contents of the signal pattern of an input signal; a plurality of gain adjusting circuits 30; a plurality of lowpass filters 40; a plurality of adders 50; an adder 52; and a driver output circuit 60 that outputs a signal obtained by adjusting, in accordance with a signal analysis result, the phase of the input signal in such a direction in which the change timing deviates when the input signal is transmitted to the transmission line. Thus, the phase of an input signal is adjusted, thereby adding the jitter to the input signal.

Abstract: Embodiments of the invention allow the efficient detection of glitches in a set of data. In one embodiment, a set of datapoints is received. The datapoints are transformed into a transformed space, and the transformed space is segmented into a plurality of regions. For each datapoint, a time series is generated representing the trajectory of the transformed datapoint through regions of the segmented transformed space. Data corresponding to transformed datapoints whose trajectories exhibit an unusual pattern are transmitted.

Abstract: A method and apparatus for measuring a duration of an event using two time-varying waveforms, each waveform having characteristics such that the waveforms intersect at an intersecting point. The duration of the event can be determined based on the characteristics and a value of the intersecting point of the waveforms. The characteristics of the waveforms can be the gradient or the initial value of the waveforms.

Abstract: We have developed a new method and apparatus for tracking and estimating parameters of locally oscillating signals from measurements that approximately preserve the inner product among signals in a class of signals of interest. Random demodulation, random sampling, and coset sampling are three prime examples of these techniques. One example of this is a compressive phase locked loops (PLL), which has a wide variety of applications, including but not limited to communications, phase tracking, robust control, sensing, and frequency modulation (FM) demodulation. The design modifies classical PLL designs to operate with CS-based sampling systems. By introducing a compressive sampler at the output of the oscillator and by appropriately adjusting the phase difference estimator we enable the use of PLLs with modern CS sampling technology. Other modifications can be made to reduce concerns such as normalization of the measurements, for example using the QCS-PLL.

Abstract: A method for identifying a location of a wheel of a rail vehicle includes producing a first signal representative of a potential difference between leads electrically coupled with a wheel gate transducer and modifying the first signal that is received over a first channel to produce a second signal over a second channel, where the second signal differs from the first signal. The method further includes monitoring the first and second signals over the first and second channels to identify the location of the wheel relative to the wheel gate transducer.

Abstract: A system and method to detect acoustic signals from fire sprinkler heads discharging water and to locate such devices in a public building, airport, sports stadium or other structure which can include a system to measure speech intelligibility. Time and frequency domain analysis are carried out to establish the presence of signals characteristic of water discharge from a fire sprinkler.

Abstract: The present invention provides a circuit protection device for protecting an electrical circuit, the circuit protection device having a signal processing unit which includes a digital processor which is adapted to receive a digital signal Idig which has a value representative of a current through an electrical path of an electrical supply, receive a digital signal Vdig which has a value representative of the voltage across the electrical path, and produce a digital signal IRdig which has a value representative of the real component of the current through the electrical path, based on the digital signals Idig and Vdig.

Abstract: A signal generator device for generating at least one periodic signal for use in a data eye scan system. The signal generator comprises a clock input, at least one output and at least one signal generator coupled with the clock input and with the output. The signal generator is at least one token ring with a predetermined number of positions and is operable to propagate at least one token in the ring by moving the token from its current position to a following position dependent on a clock signal from the clock input. The signal generator further comprises a predetermined number of signal value units that each represent a respective predetermined signal value of a predetermined signal waveform and are operable to provide the signal value at an output of the signal generator dependent on a current position of the at least one token in the token ring.

Abstract: A power trigger is provided having time qualified and sequential event capability. Digital data representing an input signal is converted into a power signal. The power signal is compared to a trigger level. A trigger signal is generated when the power signal violates the trigger level for either at least or less than a specified time duration. Alternatively, the trigger signal may be generated on the occurrence of a sequence of such violations.

Abstract: In the digitizer, a plurality of ADCs convert a plurality of analogue signals output from the device to be tested, to digital signals, respectively. The processing circuit is configured as a software-independent circuit and processes a plurality of digital signals output from the plurality of ADCs. The processing circuit is formed on the FPGA. In the processing circuit, the FFT circuit performs complex Fourier transform on two digital signals.

Abstract: A flicker detecting device for detecting a flicker of an organic light emitting diode (OLED) display apparatus, a flicker detecting method that uses the flicker detecting device, and a recording medium storing a computer program executing the flicker detecting method are provided. The flicker detecting device includes a light receiving unit receiving light from the display apparatus and generating a brightness waveform according to a brightness of the light; a frame detecting unit detecting a data display frame of the display apparatus from the brightness waveform; a waveform shaping unit shaping the brightness waveform to eliminate a start period of the data display frame from the brightness waveform; and a flicker calculating unit calculating a flicker value of the display apparatus by using the shaped brightness waveform from the waveform shaping unit, so that the detection of the flicker can be correctly performed.

Abstract: A circuit, apparatus and method obtains system margin at the receive circuit using phase shifted data sampling clocks while allowing the CDR to remain synchronized with the incoming data stream in embodiments. In an embodiment, a circuit includes first and second samplers to sample a data signal and output data and edge information in response to a data clock signal and an edge clock signal. A phase detector generates phase information in response to the data information and the edge information. A clock phase adjustment circuit generates the data clock signal and the edge clock signal in response to the data information during a synchronization mode. The clock phase adjustment circuit increments a phase of the data clock signal during a waveform capture mode.