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| Number | Title | Issue Date |
| 8160840 | Comparison of data signals using characteristic electronic thumbprints extracted therefrom A characteristic thumbprint is extracted from a data signal, the thumbprint based on statistics relating to the data signal. The data signal can be compared indirectly by matching this thumbprint against one or more reference thumbprints. The data signal may be any ... | 04/17/2012 |
| 8126681 | Semiconductor outlier identification using serially-combined data transform processing methodologies A method for identifying outlier semiconductor devices from a plurality of semiconductor devices includes performing at least one electrical test to obtain electrical test data including at least one test parameter, applying at least a first data transform processin... | 02/28/2012 |
| 8117010 | Spectral signal detection system A detection system which provides for continuous background estimation removal from a sequence of spectra. A panoramic field of regard may be partitioned into a large number of fields of view (FOVs). An FOV may have a chemical vapor cloud. The small FOV may maximize... | 02/14/2012 |
| RE42935 | Coding techniques using estimated spectral magnitude and phase derived from MDCT coefficients Estimates of spectral magnitude and phase are obtained by an estimation process using spectral information from analysis filter banks such as the Modified Discrete Cosine Transform. The estimation process may be implemented by convolution-like operations with impuls... | 11/15/2011 |
| 8032336 | Distortion cancellation using adaptive linearization A method of signal processing includes receiving a distorted signal comprising a distorted component and an undistorted component, the distorted component being at least in part attributed to an exogenous signal, and performing linearization, based at least in part ... | 10/04/2011 |
| 8024156 | Using statistics to locate signals in noise Computation of variance or variance of the autocorrelation over a moving window of various sizes of a signal containing noise and possibly a small digital signal provides a sensitive, frequency independent indication of the likelihood of the presence of a small puls... | 09/20/2011 |
| 7991590 | Adaptive real-time analysis method for dynamic signals generated by rotary machines An adaptive real-time analysis method for dynamic signals generated by rotary machines improves Vold-Kalman filtering order tracing technology to renew the algorithm logic so that on-line computation ability is achieved. Through signal simulation and practical engin... | 08/02/2011 |
| 7966157 | Signal processing circuit for rotation detector and method for detecting rotation of object A signal processing circuit for a rotation detector outputs accurate rotational information including a rotating direction of a rotor which rotates with an object. A phase difference compensation substantiating block decides whether a predetermined phase difference ... | 06/21/2011 |
| 7966155 | Method and apparatus for improving detection limits in x-ray and nuclear spectroscopy systems A spectrometry method and apparatus for filtering step-like pulses output by a preamplifier to measure the energy or other desired characteristics of events occurring in a detector attached to the preamplifier. The spectrometer provides a set of filters that are cap... | 06/21/2011 |
| 7966156 | Method, computer program, and system for intrinsic timescale decomposition, filtering, and automated analysis of signals of arbitrary origin or timescale A method and system for intrinsic timescale decomposition, filtering, and automated analysis of signals of arbitrary origin or timescale including receiving an input signal, determining a baseline segment and a monotonic residual segment with strictly negative minim... | 06/21/2011 |
| 7957939 | Maximum entropy signal detection method Methods of detecting radioactivity in dynamic situations in which radiation is detected from large and small radioactive objects with at least one radiation detector as the objects pass through the field of view and combinations are made from those measurements whic... | 06/07/2011 |
| 7920990 | Apparatus and methods of defining spectral regions of interest for signal analysis Apparatus and methods are provided to allow multiple, possibly overlapping, regions of interest within a frequency spectrum to be defined, and managed. Each of these regions of interest may be selected for further testing or identification. Unselected regions are al... | 04/05/2011 |
| 7917338 | Determining a window size for outlier detection A window size for outlier detection in a time series of a database system is determined. Strength values are calculated for data points using a set of window sizes, resulting at least in one set of strength values for each window size. The strength values increase a... | 03/29/2011 |
| 7917337 | Adaptive self-linearization with separation filter Signal processing includes receiving an unknown signal having a distorted component and an undistorted component, the distorted component and the undistorted component having a nonlinear relationship; and separating from the unknown signal a reference component and ... | 03/29/2011 |
| 7917336 | Geometric source separation signal processing technique A computer system that processes mixtures of signals, such as speech and noise sources derived from multiple simultaneous microphone recordings, in order to separate them into their underlying sources. A source separation routine optimizes a filter structure by mini... | 03/29/2011 |
| 7869980 | Using statistics to locate signals in noise Computation of variance or variance of the autocorrelation over a moving window of various sizes of a signal containing noise and possibly a small digital signal provides a sensitive, frequency independent indication of the likelihood of the presence of a small puls... | 01/11/2011 |
| 7860688 | Signal baseline processing device and processing method thereof A baseline processing device and method are provided for analyzing signals with uneven distributions of pulses and slow varying baselines. In one embodiment, the device includes an A/D sampling unit for sampling a digital counting signal to obtain sampled data, and ... | 12/28/2010 |
| 7853438 | Comparison of data signals using characteristic electronic thumbprints extracted therefrom A characteristic thumbprint is extracted from a data signal, the thumbprint based on statistics relating to the data signal. The data signal can be compared indirectly by matching this thumbprint against one or more reference thumbprints. The data signal may be any ... | 12/14/2010 |
| 7827011 | Method and system for real-time signal classification A method to achieve an accurate, extremely low power state classification implementation is disclosed. Embodiments include a sequence that matches the data flow from the sensor transducer, through analog filtering, to digital sampling, feature computation, and class... | 11/02/2010 |
| 7769565 | Sample measurement device, measurement information display method, and computer system A measurement information display method includes: generating measurement information of a sample according to progress of measurement of the sample by a measurement unit for measuring the sample, and accumulating the measurement information in a storage part, the m... | 08/03/2010 |
| 7769566 | Methods for utilizing human perceptual systems for processing event log data A method is provided for utilizing the human perceptual system by providing a spectrum of event log data for listening. Event log data is received. Events of the event log data are mapped to an x-axis of a spectrum based on time, where events of the event log data c... | 08/03/2010 |
| 7765089 | Blind signal separation A method of blind signal separation of convolutively mixed signals comprises firstly processing signals to produce second order independence. In a second step, and together with ranges of signal delay and rotation parameters, the resulting processed signals are used... | 07/27/2010 |
| 7720647 | System and method for filtering a point cloud An exemplary method for filtering a point cloud is disclosed. The method includes the steps of: acquiring a point cloud from a point cloud obtaining device; identifying an outmost point on each of surface edges of the point cloud in a coordinate system; determining ... | 05/18/2010 |
| 7716018 | Method and computer program for determining operating parameters in a roller bearing and a roller bearing which may be analyzed The invention relates to a method and a computer program for determining operating parameters such as, in particular, the rotational speed, the rotational direction, the radial force, the axial force or of structural sound events of a rotating roller bearing to whic... | 05/11/2010 |
| 7689385 | Method of animating structural vibration under operational conditions A method of analyzing structural vibration according to one aspect of the present invention includes reception of data from a plurality of sensors on a structure, filtration of the data to exclude data outside of a selected frequency band, association of sensor loca... | 03/30/2010 |
| 7660703 | Device and method for processing a signal of pressure measurement of an internal combustion engine combustion chamber A device for processing a signal of pressure measurement of an internal combustion engine combustion chamber. The device obtains, by a low-pass filter of the pressure measuring signal, a filtered signal, subtracts the filtered signal from the pressure measuring sign... | 02/09/2010 |
| 7657403 | Method for reducing digital data in an EMAT pig A method for reducing digital data of an electro magnetic acoustic transducer pig that travels through a pipeline so as to detect defects by measuring an analog ultrasonic echo includes determining a size of a defect and determining a background noise at the defect.... | 02/02/2010 |
| 7653515 | Expert knowledge methods and systems for data analysis A method for adjusting a data set defining a set of process runs, each process run having a set of data corresponding to a set of variables for a wafer processing operation is provided. A model derived from a data set is received. A new data set corresponding to one... | 01/26/2010 |
| 7647209 | Signal separating apparatus, signal separating method, signal separating program and recording medium A frequency domain transforming section transforms mixed signals observed by multiple sensors into mixed signals in the frequency domain, a complex vector generating section generates a complex vector by using the frequency-domain mixed signals, a normalizing sectio... | 01/12/2010 |
| 7623989 | System and method for pulsed signal device characterization utilizing an adaptive matched filterbank A test system and method which employs a filter bank to select different spectral components of a pulsed measurement signal. The filter bank utilizes filter nulls to suppress non-selected spectral components. After filtering the selected spectral components, the spe... | 11/24/2009 |
| 7580812 | Trending system and method using window filtering A trending system and method for trending data in a mechanical system is provided. The trending system includes a sliding window filter. The sliding window filter receives a data set of data points generated by the mechanical system. The sliding window filter partit... | 08/25/2009 |
| 7536281 | Method for compensating for a contaminated calibration target used in calibrating a scanner A method for compensating for a contaminated calibration target used in calibrating a scanner having a plurality of sensor pixels includes (a) scanning a calibration target to generate a respective plurality of calibration data samples for each sensor pixel of the p... | 05/19/2009 |
| 7496482 | Signal separation method, signal separation device and recording medium A method and a device for signal separation. First, values of signals observed by M sensors are transformed into frequency domain values, and these frequency domain values are used to calculate relative values of the observed values between the sensors at each frequ... | 02/24/2009 |
| 7474992 | Trending system A trending system and method for trending data in a physical or clock system. The trending system includes a sliding window filter. The sliding window filter receives a data set of data points generated by the clock system. The sliding window filter partitions the d... | 01/06/2009 |
| 7464006 | Analyzing nonstationary financial time series via hilbert-huang transform (HHT) An apparatus, computer program product and method of analyzing non-stationary time varying phenomena. A representation of a non-stationary time varying phenomenon is recursively sifted using Empirical Mode Decomposition (EMD) to extract intrinsic mode functions (IMF... | 12/09/2008 |
| 7460983 | Signal analysis system and calibration method A method and apparatus adapted to calibrate a signal path of a signal analysis system such that loading effects of the system are substantially removed from measurements of a device under test. A signal under test from the device under test is coupled to a test prob... | 12/02/2008 |
| 7443989 | Adaptive beamforming method and apparatus using feedback structure An adaptive beamforming apparatus and method includes a fixed beamformer that compensates for time delays of M noise-containing speech signals input via a microphone array having M microphones (M is an integer greater than or equal to 2), and generates a sum signal ... | 10/28/2008 |
| 7437249 | Methods and systems for detrending signal intensity data from chemical arrays Methods, systems and computer readable media for removing trends in signal intensity values from features on a chemical array. Inputted signal values from features on the array are surface fitted to calculate a surface approximation. The surface approximation is nor... | 10/14/2008 |
| 7430481 | Methods for detecting and analyzing piled-up X-rays in an X-ray spectrometry system A method of processing signals relating to a plurality of X-rays received in an X-ray spectrometry system that includes a pulse processor having a main channel and zero or more fast channels includes steps of receiving a main channel dead time signal and zero or mor... | 09/30/2008 |
| 7426439 | Method and apparatus for marine seismic data acquisition The present invention provides a method and apparatus for seismic data acquisition. One embodiment of the method includes accessing data acquired by at least two particle motion sensors. The data includes a seismic signal and a noise signal and the at least two part... | 09/16/2008 |
