Signal Extraction Or Separation (e.g., Filtering) Patents (Class 702/190)
  • Patent number: 10365120
    Abstract: The present invention relates to device, system and method for counting the number of cycles of a periodic movement of a subject, e.g. for step counting of a person.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: July 30, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Erik Gosuinus Petrus Schuijers, Louisa Simone Ruijs, Francesco Sartor, Paul Marcel Carl Lemmens
  • Patent number: 10368222
    Abstract: Lost, misplaced, incorrectly delivered, and damaged assets are a common occurrence in shipment or asset tracking. Disclosed are various embodiments concerning a battery-less or intermittent battery use environments in which a node uses internal logic (e.g., circuitry and/or software) that, based at least in part on sensor information and stored information regarding the history of the node, may track events that have occurred to the node. The node may be responsive to events and determine whether exceptions have occurred that require attention. For example, detecting damage might cause the node to update an output to indicate the node and associated material, if any, needs to be rerouted to address the exception.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: July 30, 2019
    Assignee: Intel Corporation
    Inventors: Christopher R. Carlson, Rahul Khanna, Greeshma Pisharody
  • Patent number: 10359404
    Abstract: In a method for estimating a noise level representing the magnitude of a noise component from measurement data, first waveform data composed of high frequency noise components extracted from assumed noise data are divided into segments so that each section where positive values successively occur or each section where negative values successively occur in the first waveform data is defined as one segment. A segment-width threshold is determined based on the distribution of the widths of the segments. Second waveform data composed of high frequency noise components extracted from measurement data are divided into segments in the same manner. Each segment having a width larger than the threshold is excluded from the segments in the second waveform data, to create a first segment group. The noise level is determined based on the heights or areas of the plurality of segments included in the first segment group.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: July 23, 2019
    Assignee: SHIMADZU CORPORATION
    Inventor: Hiroaki Kozawa
  • Patent number: 10330524
    Abstract: A system and method is disclosed which monitors factors in order to prevent impending component failure within a mechanical system, such as an aircraft. The monitoring system monitors the health and condition of system components, and utilizes proprietary algorithms to predict impending failures in monitored components before failure occurs. The system can shut down a component, send an alert, or adjust component thresholds as required.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: June 25, 2019
    Assignee: Inflight Warning Systems, Inc.
    Inventors: Joseph Barclay, Brian Kirby
  • Patent number: 10302530
    Abstract: Methods and systems to achieve highly efficient rotational machine integrity determinations in which at least one sensor (106) senses indicia (105) such as time-varying rotational indicia from a rotational motive apparatus (103) and a processor (108) may provide many different functions including but not limited to operational function energy apportioning decisional processing, data compression, intelligent hierarchical data ranking, differential data processing, or the like perhaps to generate information (109) such as a rotational integrity abridgment transmissor to which an abridgment transmissor electromagnetic signal (112) may be created and perhaps even transmitted from a rotational motive apparatus to facilitate a machine integrity determination.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: May 28, 2019
    Assignee: AKTIEBOLAGET SKF
    Inventor: Johannes I. Boerhout
  • Patent number: 10240928
    Abstract: Systems and methods for predictive health monitoring of gyroscopes and accelerometers are provided. In one embodiment, a system comprises: a plurality of navigation devices each comprising at least one gyroscope or accelerometer and at least one predictive health monitoring module, wherein the at least one predictive health monitoring module collects diagnostic parameters from the at least one gyroscope or accelerometer; and at least one server communicatively coupled to the plurality of navigation devices, the at least one server configured to receive the collected data from the plurality of navigation devices and analyze the collected data from the plurality of navigation devices to determine a service prognosis.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: March 26, 2019
    Assignee: Honeywell International Inc.
    Inventor: Alan Bruce Touchberry
  • Patent number: 10222450
    Abstract: An integrated inertial motion capture system includes external position aiding such as optical tracking. The integrated system addresses and corrects misalignment between the inertial (relative) and positioning reference (external) frames. This is especially beneficial when it is not feasible to rely on magnetometers to reference the heading of the inertial system. This alignment allows effective tracking of yaw in a common reference frame for all inertial sensing units, even those with no associated positional measurements. The disclosed systems and methods also enable an association to be formed between the inertial sensing units and positional measurements.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: March 5, 2019
    Assignee: XSENS HOLDING B.V.
    Inventors: Giovanni Bellusci, Jeroen Hol, Per Slycke
  • Patent number: 10168411
    Abstract: The invention relates to a measuring device for measuring a high-frequency signal and a method for correcting a high-frequency signal superposed with measurement errors by means of the measuring device. The measurement is a time-domain measurement in real-time. The measuring device provides a measurement-signal input, an analog digital converter and a processing unit, wherein the measurement-signal input is connected to a device under test in order to measure the high-frequency signal. According to the invention a deembedding unit is arranged in the signal path of the measuring device between analog-digital converter and the processing unit in order to compensate measurement errors resulting from the connection of devices under test and measuring devices.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: January 1, 2019
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventor: Thomas Kuhwald
  • Patent number: 10075813
    Abstract: A network node for monitoring a mobile asset in a geographical area. The network node is among a number of network nodes disposed in the geographical area that are configured to receive an Internet-of-things (IoT) signal from the mobile asset, and send respective time stamps, each representing a time-of-arrival (TOA) of the IoT signal, to a network aggregation system to generate a time-difference-of-arrival (TDOA) from which a geolocation of the mobile asset is generated.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: September 11, 2018
    Assignee: TIONESTA, LLC
    Inventors: Paul Struhsaker, Nicholas Cianos, Chenchen Jimmy Li
  • Patent number: 10055483
    Abstract: A method is carried out by a data stream management system suitable for executing continuous queries on input data streams. Primary continuous queries are executed by, or provisioned to be executed by, the data stream management system on one or more input data streams in order to produce one or more output data streams. In the method, at least one secondary continuous query is generated for execution on the data stream management system on one or more input data streams. The generated secondary continuous queries are different from the primary continuous queries, and the secondary continuous queries are generated based on the at least one primary continuous query. The generation of secondary continuous queries notably enables, when ad-hoc continuous queries are requested, to quickly start outputting data streams for these ad-hoc queries. Data stream management systems and computer programs are also disclosed.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: August 21, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventor: Luis Maria Lafuente Alvarez
  • Patent number: 9940546
    Abstract: Method and/or apparatus for independent component analysis of a mixed electronic signal. Candidate signal components are determined, and mutual information (MI) criteria between each candidate signal component is minimized. The candidate signal components are optimized using polar coordinates.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: April 10, 2018
    Assignee: The Regents of the University of California
    Inventor: Carl Kalon Hoh
  • Patent number: 9846204
    Abstract: An integrated semiconductor device for measuring a magnetic field, comprising: a Hall sensor, a first lateral isotropic sensor having a first stress sensitivity and a first temperature sensitivity, a second lateral isotropic sensor having a second stress sensitivity and a second temperature sensitivity, optional amplifying means, digitization means; and calculation means configured for calculating a stress and temperature compensated Hall value in the digital domain, based on a predefined formula which can be expressed as an n-th order polynomial in only two parameters. These parameters may be obtained directly from the sensor elements, or they may be calculated from a set of two simultaneous equations. A method of obtaining a Hall voltage signal, and compensating said signal for stress and temperature drift.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: December 19, 2017
    Assignee: MELEXIS TECHNOLOGIES SA
    Inventors: Samuel Huber, Samuel Francois
  • Patent number: 9824265
    Abstract: A method for identifying individuals using inertial sensor based gait biometrics. A method for identifying individual persons using orientation and pace invariant gait dynamics images (GDIs). A method of biometric authentication using i-vectors for GDIs.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: November 21, 2017
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Yu Zhong, Yunbin Deng, Geoffrey S. Meltzner
  • Patent number: 9801150
    Abstract: In one embodiment, a method comprises receiving, by an apparatus from each of a plurality of wireless sensor devices in a wireless sensor network, clock drift information associated with a clock in the corresponding wireless sensor device; determining for each wireless sensor device, by the apparatus, an expected clock drift based at least on the clock drift information from the corresponding wireless sensor device; and sending, by the apparatus to each wireless sensor device, a corresponding drift compensation command for correcting the corresponding expected clock drift, enabling controlled synchronization of the corresponding wireless sensor device within the wireless sensor network.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: October 24, 2017
    Assignee: Cisco Technology, Inc.
    Inventors: Patrick Wetterwald, Pascal Thubert, Eric Michel Levy-Abegnoli
  • Patent number: 9724005
    Abstract: A real-time multi-channel EEG signal processor based on an on-line recursive independent component analysis is provided. A whitening unit generates covariance matrix by computing covariance according to a received sampling signal. A covariance matrix generates a whitening matrix by a computation of an inverse square root matrix calculation unit. An ORICA calculation unit computes the sampling signal and the whitening matrix to obtain a post-whitening sampling signal. The post-whitening sampling signal and an unmixing matrix implement an independent component analysis computation to obtain an independent component data. An ORICA training unit implements training of the unmixing matrix according to the independent component data to generate a new unmixing matrix. The ORICA calculation unit may use the new unmixing matrix to implement an independent component analysis computation. Hardware complexity and power consumption can be reduced by sharing registers and arithmetic calculation units.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: August 8, 2017
    Assignee: National Chiao Tung University
    Inventors: Wai-Chi Fang, Wei-Yeh Shih, Jui-Chieh Liao, Kuan-Ju Huang, Chiu-Kuo Chen, Gert Cauwenberghs, Tzyy-Ping Jung
  • Patent number: 9729965
    Abstract: A method of post-processing banded gains for applying to an audio signal, an apparatus to post-processed banded gains, and a tangible computer-readable storage medium comprising instructions that when executed carry out the method. The banded gains are determined by input processing one or more input audio signals. The method includes post-processing the banded gains to generate post-processed gains, generating a particular post-processed gain for a particular frequency band including percentile filtering using gain values from one or more previous frames of the one or more input audio signals and from gain values for frequency bands adjacent to the particular frequency band.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: August 8, 2017
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Xuejing Sun, Glenn N. Dickins
  • Patent number: 9659408
    Abstract: A system, apparatus, method, computer program product, and computer readable storage medium provide the ability to reconstruct a surface mesh. Photo image data is obtained from a set of overlapping photographic images. Scan data is obtained from a scanner. A point cloud is generated from a combination of the photo image data and the scan data. An initial rough mesh is estimated from the point cloud data. The initial rough mesh is iteratively refined into a refined mesh.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: May 23, 2017
    Assignee: Autodesk, Inc.
    Inventors: Luc Franck Robert, Emmanuel Gallo
  • Patent number: 9639895
    Abstract: Networks, systems and methods for dynamically filtering market data are disclosed. Streams of market data may be buffered or stored in a queue when inbound rates exceed distribution or publication limitations. Inclusive messages in the queue may be removed, replaced or aggregated, reducing the number of messages to be published when distribution limitations are no longer exceeded.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: May 2, 2017
    Assignee: Chicago Mercantile Exchange, Inc.
    Inventors: Paul J Callaway, Dennis M Genetski, Adrien Gracia, James Krause, Vijay Menon
  • Patent number: 9548606
    Abstract: According to one embodiment, the A/D conversion unit includes a ?? modulating device which samples the analog electric quantity provided by the electric power system with a predetermined modulation frequency and outputs a bit stream changing over time of single bit obtained by performing ?? modulation, and the digital operation processing unit includes one or more digital filters which inputs the bit stream from the ?? modulating device and of which frequency characteristics differ according to a type of protection control operation, and one or more operation processing elements which perform different kinds of protection control operation processing, based on the bit stream provided by the digital filter.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: January 17, 2017
    Assignees: KABUSHIKI KAISHA TOSHIBA, NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGY
    Inventors: Daiju Itagaki, Shogo Miura, Katsuhiko Sekiguchi, Satoshi Hirano
  • Patent number: 9546400
    Abstract: The invention relates to devices and methods for nanopore sequencing. The invention provides for using the signals from n-mers to provide sequence information, for example where the system has less than single base resolution. The invention includes arrays of nanopores having incorporated electronic circuits, for example, in CMOS. In some cases, the arrays of nanopores comprise resistive openings for isolating the electronic signals for improved sequencing. Methods for controlling translocation of through the nanopore are disclosed.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: January 17, 2017
    Assignee: Pacific Biosciences of California, Inc.
    Inventors: Stephen Turner, Benjamin Flusberg
  • Patent number: 9510775
    Abstract: The invention relates to a motion determination apparatus for determining motion of a moving object, wherein the motion determination apparatus (1) comprises a multi-axial accelerometer (2) for being positioned at the moving object (4), wherein the multi-axial accelerometer (2) is adapted to generate accelerometer signals indicative of the acceleration along different spatial axes. The motion determination apparatus further comprises a motion signal generation unit (3) for generating a motion signal indicative of the motion of the object (4) by combining the accelerometer signals of different spatial axes. The combination of the accelerometer signals of different spatial axes yields a motion signal having a large signal-to-noise ratio, even if an axis is located close to a rotational axis of the movement.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: December 6, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Geert Guy Georges Morren, Anmin Jin, Bin Jin, Haris Duric, Ronaldus Maria Aarts
  • Patent number: 9495515
    Abstract: The present invention relates to compositions and methods for molecular profiling and diagnostics for genetic disorders and cancer, including but not limited to gene expression product markers associated with cancer or genetic disorders. In particular, the present invention provides algorithms and methods of classifying cancer, for example, thyroid cancer, methods of determining molecular profiles, and methods of analyzing results to provide a diagnosis.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: November 15, 2016
    Assignee: Veracyte, Inc.
    Inventors: Giulia C. Kennedy, Darya I. Chudova, Eric T. Wang, Jonathan I. Wilde
  • Patent number: 9462280
    Abstract: A system and method for impairments compensation filtering is described that can be used either in conjunction with video coding, or standalone for postprocessing. It uses a wiener filtering approach in conjunction with an efficient codebook representation.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: October 4, 2016
    Assignee: INTEL CORPORATION
    Inventors: Atul Puri, Neelesh Gokhale, Daniel Socok
  • Patent number: 9452585
    Abstract: An automatic inspection device for a corrugated paperboard machine includes comprises a position setting section for setting movable members to positions within moving ranges; a control section for driving each of the drive motors at a given rotational speed so as to allow a respective one of the movable members to be moved within a corresponding one of the moving ranges; a current detection section for detecting a drive current being supplied to each of the drive motors when the drive motor is driven at the given rotational speed; and a current determination section for determining whether the drive current of each of the drive motors exceeds a given threshold. The automatic inspection device is configured to, when the current determination section determines that the drive current of a specific one of the plurality of drive motors exceeds the given threshold, detecting that a defect occurs in the movable member.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: September 27, 2016
    Assignee: Kabushiki Kaisha Isowa
    Inventors: Hiroshi Ota, Michio Suzuki
  • Patent number: 9361898
    Abstract: A method for encoding three dimensional audio by a wireless communication device is disclosed. The wireless communication device detects an indication of a plurality of localizable audio sources. The wireless communication device also records a plurality of audio signals associated with the plurality of localizable audio sources. The wireless communication device also encodes the plurality of audio signals.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: June 7, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Erik Visser, Lae-Hoon Kim, Pei Xiang
  • Patent number: 9311390
    Abstract: A computer-implemented method, system, and computer program product for generating vector-based similarity scores in text document comparisons considering confounding effects of document length. Vector-based methods for comparing the semantic similarity between texts (such as Content Vector Analysis and Random Indexing) have a characteristic which may reduce their usefulness for some applications: the similarity estimates they produce are strongly correlated with the lengths of the texts compared. The statistical basis for this confound is described, and suggests the application of a pivoted normalization method from information retrieval to correct for the effect of document length. In two text categorization experiments, Random Indexing similarity scores using pivoted normalization are shown to perform significantly better than standard vector-based similarity estimation methods.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: April 12, 2016
    Assignee: Educational Testing Service
    Inventor: Derrick C. Higgins
  • Patent number: 9276604
    Abstract: Representative implementations of devices and techniques provide analog to digital conversion of an analog input. A multistage modulator using a feed-forward technique can alternately convert integrated samples of the analog input to digital representations. For example, the modulator is arranged to alternately output the digital representations to form a digital representation of the analog input.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: March 1, 2016
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Jose Luis Ceballos, Christian Reindl, Snezana Stojanovic
  • Patent number: 9264803
    Abstract: Methods, apparatus, and computer-readable media are described herein related to using self-generated sounds for determining a worn state of a wearable computing device. A wearable computing device can transmit an audio signal. One or more sensors coupled to the wearable computing device may then receive a modified version of the audio signal. A comparison may be made between the modified version of the audio signal and at least one reference signal, where the at least one reference signal is based on the audio signal that is transmitted. Based on an output of the comparison, a determination can be made of whether the wearable computing device is being worn.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: February 16, 2016
    Assignee: Google Inc.
    Inventors: Michael Patrick Johnson, Carroll Philip Gossett
  • Patent number: 9176242
    Abstract: Seismic systems and methods are provided to synchronize both source and receiver data using inexpensive timers and/or low energy timers to obtain high resolution seismic data.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: November 3, 2015
    Assignee: ConocoPhillips Company
    Inventors: Peter M. Eick, Joel D. Brewer
  • Patent number: 9116675
    Abstract: A system and method for determining a median value in a set of values in a digital processing circuit is provided. The method comprises the following steps—(a) for each value in the set, comparing the value to each other value in the set, (b) for each comparison, assigning an index based upon the comparison and (c) repeating steps (a) and (b) for each value in the set. The method further comprises (d) performing an arithmetic operation based upon the indices for each value, (e) comparing the result of step (d) with a threshold and (f) selecting the median value based upon the comparison performed in step (e).
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: August 25, 2015
    Assignee: JADAVPUR UNIVERSITY
    Inventors: Debotosh Bhattacharjee, Santanu Halder
  • Patent number: 9099096
    Abstract: Methods and apparatus for signal processing are disclosed. Source separation can be performed to extract moving source signals from mixtures of source signals by way of independent component analysis. Source motion is modeled by direct to reverberant ratio in the separation process, and independent component analysis techniques described herein use multivariate probability density functions to preserve the alignment of frequency bins in the source separation process.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: August 4, 2015
    Assignee: Sony Computer Entertainment Inc.
    Inventors: Jaekwon Yoo, Ruxin Chen
  • Patent number: 9093056
    Abstract: A method includes determining a first spectrogram of the audio signal, defining a similarity matrix of the audio signal based on the first spectrogram and a transposed version of the first spectrogram, identifying two or more similar frames in the similarity matrix that are more similar to a designated frame than to one or more other frames in the similarity matrix, creating a repeating spectrogram model based on the two or more similar frames that are identified in the similarity matrix, and deriving a mask based on the repeating spectrogram model and the first spectrogram of the audio signal. The mask is representative of similarities between the repeating spectrogram model and the first spectrogram of the audio signal. The method also includes extracting a repeating structure from the audio signal by applying the mask to the audio signal.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: July 28, 2015
    Assignee: NORTHWESTERN UNIVERSITY
    Inventors: Bryan Pardo, Zafar Rafii
  • Patent number: 9075407
    Abstract: The reduced complexity auto-tuning process controller system and method is a control scheme in which, for each process variable, a single gain K, which is initialized with a sufficiently small value, is iteratively auto-tuned using a predetermined discrete sample time and learning rate. A plant error is calculated and summed with an output of a one-sample delay, the sum being input to the one-sample delay. The combined output of the one-sample delay is multiplied by the input signal, i.e., used as a gain constant of the control input signal. The control input signal times this gain constant is fed to the plant input, thereby reducing error in the plant.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: July 7, 2015
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Hussain Al-Duwaish, Syed Z. Rizvi
  • Patent number: 9065744
    Abstract: A probe receives a first packet over a network on a port. A sequence number and synchronization source identifier (SSRC) associated with the first packet are identified. The probe receives a subsequent packet and a sequence number and SSRC associated with the subsequent packet are determined. The probe determines whether the SSRC associated with first packet and the SSRC associated with the subsequent packet match. Additionally, the probe determines whether the sequence number associated with the subsequent packet is within an acceptable range of values related to the sequence number associated with the first packet. Additionally, the probe calculates the time interval between reception of the packets. The probe classifies traffic on the port as RTP or non-RTP traffic based on analysis of the SSRCs, sequence numbers and time intervals.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: June 23, 2015
    Assignee: Netscout Systems, Inc.
    Inventor: David Ronald Harrison
  • Publication number: 20150149121
    Abstract: Devices, methods and systems are provided for processing measurement data. An exemplary device includes a first module to provide data and an interrupt, a control module coupled to the first module to obtain the data from the first module and provide an indication after obtaining the data, and an interrupt control module coupled to the first module and the control module to notify the first module to clear the interrupt in response to the indication from the control module.
    Type: Application
    Filed: November 22, 2013
    Publication date: May 28, 2015
    Inventor: FIROZ AHMED
  • Publication number: 20150149122
    Abstract: A handheld measurement device incorporating both a data collector and an analyzer is disclosed. The data collector of the device receives one or more external input signals and stores the data collected for later retrieval and analysis. In one embodiment these input signals are received from sensors used to collect measurements in machine systems for predictive maintenance purposes. The analyzer using software routines in accordance with a method of the present invention retrieves and processes the collected data using filtering techniques and performs calculations that determine the absence or presence of a machine system defect. Additionally, the handheld measurement device includes a display for providing a user with one or more different visual presentations of the calculated results with respect to the collected measured data or alternatively provides the user the option of transferring the calculated results either directly or wirelessly to the display used with any other computer system.
    Type: Application
    Filed: November 22, 2014
    Publication date: May 28, 2015
    Inventor: Teno Cipri
  • Publication number: 20150142390
    Abstract: A sensor system includes a plurality of sensor elements and a signal processing device. The plurality of sensor elements detect at least in part different primary measurement variables and utilize at least in part different measurement principles. The signal processing device is configured to evaluate the sensor signals of the sensor elements.
    Type: Application
    Filed: September 12, 2012
    Publication date: May 21, 2015
    Inventors: Nico Steinhardt, Jens Martin
  • Patent number: 9031816
    Abstract: 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.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: May 12, 2015
    Assignee: National Chiao Tung University
    Inventors: Chiu-Kuo Chen, Wai-Chi Fang, Ericson Chua, Chih-Chung Fu, Shao-Yen Tseng
  • Patent number: 9026390
    Abstract: A time-interleaved RF triggering method and system on a test and measurement instrument includes an acquisition component that samples a waveform, which is converted into an amplitude, phase, frequency, in-phase (I), and quadrature (Q) waveform, any of which can be used for triggering an RF digital trigger, including triggering that uses demodulation and/or decoding of the down-converted complex IQ data samples for a given protocol. Aliasing caused by subsampled data in each of the interleaved acquisition components is cancelled out using a fractional time-shift filter.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: May 5, 2015
    Assignee: Tektronix, Inc.
    Inventor: Gregory A. Martin
  • Patent number: 9009003
    Abstract: The invention is an apparatus and method of eliminating polarization-induced fading in interferometric fiber-optic sensor system having a wavelength-swept laser optical signal. The interferometric return signal from the sensor arms are combined and provided to a multi-optical path detector assembly and ultimately to a data acquisition and processing unit by way of a switch that is time synchronized with the laser scan sweep cycle.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: April 14, 2015
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Hon Man Chan, Allen R. Parker, Jr.
  • Publication number: 20150088456
    Abstract: An apparatus and method for extracting a feature point to recognize an obstacle using a laser scanner are provided. The apparatus includes a laser scanner that is installed at a front of a traveling vehicle and is configured to obtain laser scanner data having a plurality of layers in real time. In addition, a controller is configured to separate the laser scanner data obtained by the laser scanner into a plurality of layers to extract measurement data present in each layer and determine feature points of the measurement data to classify a type of obstacle based on a plurality of stored feature points.
    Type: Application
    Filed: December 27, 2013
    Publication date: March 26, 2015
    Applicants: HYUNDAI MOTOR COMPANY, Industry-Academic Cooperation Foundation, Yonsei University, KIA MOTORS CORPORATION
    Inventors: Minkyun Yoo, Hyunju Kim, Hoon Lee, Youngwon Kim, Hyungsun Jang, Baehoon Choi, Beomseong Kim, Euntai Kim
  • Publication number: 20150088279
    Abstract: A sensing system includes a filter construction module that constructs a high pass filter for filtering sensor values indicative of a process variable, the filter construction module setting values for parameters of the filter based on a temperature value indicative of a temperature of the sensor that produced the sensor values.
    Type: Application
    Filed: September 23, 2013
    Publication date: March 26, 2015
    Applicant: Rosemount Inc.
    Inventors: John Philip Miller, Robert Carl Hedtke
  • Patent number: 8977503
    Abstract: Apparatuses and methods for collecting and analyzing seismic data (D) include a frequency dependent noise factor (?2) for stabilizing a transformation matrix (S). The noise factor (?2) is a function of a number of nonzero eigenvalues of the transformation matrix (S).
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: March 10, 2015
    Assignee: Shell Oil Company
    Inventor: Jonathan Lewis Sheiman
  • Publication number: 20150057979
    Abstract: There is disclosed an NMR signal processing method for accurately estimating the intensities of p peaks of interest in an NMR spectrum by the use of a mathematical model that represents a time-domain, free induction decay (FID) signal obtained by an NMR measurement as a sum of q signal components. First, q parameters (each being a combination of a pole and a complex intensity) defining q signal components are estimated for each value of the estimation order q of the mathematical model while varying the value of the estimation order q (S34). At each value of the estimation order q, p parameters are selected from the q parameters in accordance with selection criteria (S42, S46). The selected p parameters are evaluated (S48). An optimal value of the estimation order is determined based on the evaluation values produced at the various values of the estimation order q, and p parameters corresponding to the optimal value of the estimation order is identified.
    Type: Application
    Filed: August 13, 2014
    Publication date: February 26, 2015
    Inventors: Takako Suematsu, Hiroaki Utsumi, Tomoki Nakao, Toshihiro Furukawa
  • Patent number: 8958750
    Abstract: The peak detection method using blind source separation extracts true peaks from noisy peaks in a more robust way that does not require any a priori information. Information regarding true peak location is obtained by thresholding the output of a wavelet transform. The value of the threshold is dependent on noise variance. While noise variance is normally unknown, the present method implements a blind source separation technique to calculate the noise variance. The blind source separation technique does not require information of the incoming signal or the channel noise, and hence is suitable for CR (cognitive radio) peak detection.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: February 17, 2015
    Assignees: King Fahd University of Petroleum and Minerals, King Abdulaziz City for Science and Technology
    Inventors: Zahid Saleem, Samir Al-Ghadhban, Tareq Y. Al-Naffouri
  • Publication number: 20150046128
    Abstract: A filtration method for filtrating abnormal sensing data by a monitoring chip is disclosed. A sensing data is obtained by a sensor performing real-time monitoring of a sensed object. The monitoring chip receives the sensing data from the sensor every sensing time interval. When a duration of the monitoring chip receiving continuously a plurality of abnormal sensing data has reached a set duration, the monitoring chip puts to use a last received abnormal sensing data and provides an indication that the sensed object is operating abnormally. When the duration of the monitoring chip receiving continuously a plurality of abnormal sensing data has not reached the set duration, the monitoring chip puts to use the last received sensing data before receiving the plurality of abnormal sensing data without utilizing the plurality of abnormal sensing data.
    Type: Application
    Filed: November 11, 2013
    Publication date: February 12, 2015
    Applicants: Inventec Corporation, Inventec (Pudong) Technology Corporation
    Inventor: Chun-Peng ZHOU
  • Patent number: 8954286
    Abstract: A waveform acquiring unit acquires a time waveform of an electromagnetic wave. The time waveform is decomposed into wavelet expansion coefficients by wavelet transform. Influence levels of the respective wavelet expansion coefficients to a spectrum are calculated. The wavelet expansion coefficients are weighted based on at least the influence levels of the wavelet expansion coefficients to the spectrum. The weighted wavelet expansion coefficients are converted into time waveforms by inverse wavelet transform. Thus, the time waveforms that holds spectrum information needed for spectroscopic analysis and has a reduced noise is provided.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: February 10, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Michinori Shioda
  • Patent number: 8949070
    Abstract: A method or apparatus for monitoring human activity using an inertial sensor is described. The method includes monitoring accelerations, and identifying a current user activity from a plurality of user activities based on the accelerations. In one embodiment, each of the plurality of user activities is associated with one of a plurality of types of periodic human motions that are detectable by the portable electronic device, and wherein the identification of the current user activity is made based on detecting two or more instances of the periodic human motion associated with the user activity. The method further includes counting periodic human motions appropriate to the current user activity.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: February 3, 2015
    Assignee: DP Technologies, Inc.
    Inventors: Philippe Richard Kahn, Arthur Kinsolving, Mark Andrew Christensen, Brian Y. Lee, David Vogel
  • Patent number: 8949077
    Abstract: Physiological signal quality classification methods and systems designed to improve ambulatory monitoring. Physiological signals are classified as good, noisy or weak based on signal properties. Once classified, signals are processed differently depending on their classification in order to encourage reliance on reliable physiological data, discourage reliance on unreliable physiological data and induce action to improve signal quality. For example, for a good signal, physiological data may be extracted from the signal and displayed to a person being monitored. For a noisy signal, a noisy signal notification may be displayed to the person in lieu of extracted physiological data. For a weak signal, a weak signal notification may be displayed to the person in lieu of extracted physiological data.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: February 3, 2015
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Yongji Fu, Te-Chung Isaac Yang
  • Patent number: 8948835
    Abstract: The disclosure includes pulse oximetry systems and methods for determining point-by-point saturation values by encoding photoplethysmographs in the complex domain and processing the complex signals. The systems filter motion artifacts and other noise using a variety of techniques, including statistical analysis such as correlation, or phase filtering.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: February 3, 2015
    Assignee: Cercacor Laboratories, Inc.
    Inventor: Mohamed K. Diab