Class / Patent application number | Description | Number of patent applications / Date published |
702196000 | Using matrix operation | 9 |
20090177443 | METHOD AND SYSTEM FOR DETECTING CHANGES IN SENSOR SAMPLE STREAMS - A method detects a change in a stream of samples acquired by a sensor. A stream of samples acquired by a sensor over time is stored sequentially in a buffer in which an oldest sample is discarded and a newest sample is stored when the buffer is full such that the buffer forms a window of samples sliding forward in time. For each new sample, the buffer is partitioned into all possible pairs of contiguous sub-windows of samples including a first sub-window and a second sub-window such that the newest sample is stored in the second sub-window of the pair. A difference is determined between the first and second sub-window of each pair of the contiguous sub-windows of samples, and a maximum difference is assigned as a merit score. A change in the stream of samples is signaled if the merit score is greater than a predetermine threshold. The change can be abrupt or gradual. | 07-09-2009 |
20100286963 | Method For Separating Mixed Signals Into A Plurality Of Component Signals - The invention relates to a method for breaking down a set of signals consisting of an instantaneous linear mixture of independent components. The method comprises a step ( | 11-11-2010 |
20110071797 | SYSTEMS AND METHODS FOR ANALYSIS AND DESIGN OF RADIATING AND SCATTERING OBJECTS - Methods and apparatus for analysis and design of radiation and scattering objects are disclosed. In one embodiment, unknown sources are spatially grouped to produce a system interaction matrix with block factors of low rank within a given error tolerance and the unknown sources are determined from compressed forms of the factors. | 03-24-2011 |
20110238383 | One-Port De-embedding Using Time Domain Substitution - A method is provided for de-embedding the S-parameter response of an electrical DUT embedded in an electrical network. The method comprises making first and second S-parameter measurements in the frequency domain at a port or measurement reference plane to the network containing the DUT. For the second measurement, a known impedance condition is created at the embedded location of the DUT. The first and second measurements are transformed to the time domain, and then gated to select portions of the time-domain-transformed responses that correspond to paths that include the DUT and known impedance condition, respectively. The gated time domain responses are then transformed back into the frequency domain, yielding first and second selected S-parameter measurement responses M1 and M2, respectively. A reflection S-parameter for the DUT is then determined as a function of the first and second selected S-parameter measurement responses and the known impedance condition. | 09-29-2011 |
20120101782 | PROCESS AND APPARATUS FOR MEASURING SPECTRAL RESPONSE OF SOLAR CELL, AND PROCESS FOR COMPENSATING DECAY OF LIGHT SOURCE - The invention employs a group of LED devices as a light source for emitting light with different wavelengths towards the solar cell under test. A set of test signal data composed of mutually orthogonal test signals are used to power the LED devices to emit light. The solar cell, upon receiving light from the LED devices powered by the test signal data, generates detected values which are in turn converted into electric signals. A processor device is then used to separate component signals contributed by the respective LED devices from the signals and compare the component signals to the output power level corresponding to the test signal data and/or to the optical energy levels radiated from the respective LED devices, thereby obtaining the spectral response of the solar cell to the different wavelengths of light. | 04-26-2012 |
20120158367 | INDEPENDENT COMPONENT ANALYSIS PROCESSOR - An independent component analysis processor conducts real-time operations of multiple-channel parallel signals. The processor includes an input buffering unit for receiving and storing multiple-channel parallel signals, a mean/covariance unit, a centering unit for removing direct current components in the multiple channels parallel signals, a whitening unit for performing a whitening process, and an ICA training unit and an ICA calculating unit that perform an independent component analysis process, to calculate independent components in the multiple-channel parallel signals and separate artifacts from the signals. | 06-21-2012 |
20130144564 | 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 classification. | 06-06-2013 |
20160172171 | AUTOMATIC DETERMINATION OF DEMULTIPLEXING MATRIX FOR ION MOBILITY SPECTROMETRY AND MASS SPECTROMETRY | 06-16-2016 |
702197000 | Having multiple filtering stages | 1 |
20140025342 | ION DETECTION AND PARAMETER ESTIMATION FOR N-DIMENSIONAL DATA - Methods and apparatus for LC/IMS/MS analysis involve obtaining noisy raw data from a sample, convolving the data with an artifact-reducing filter, and locating, in retention-time, ion mobility, and mass-to-charge-ratio dimensions, one or more ion peaks of the convolved data. | 01-23-2014 |