Patents Issued in April 30, 2020
  • Publication number: 20200132767
    Abstract: Testing systems and method of testing an integrated circuit are provided. A testing system comprises an input terminal, multiple circuit elements, each having a register, and an output terminal forming a scan chain through which an input signal is propagated. The testing system further comprises a debugger that includes a mapping module that stores information mapping register values to their respective functional meanings. The input signal is applied to extract all values of all of the registers whether or not accessible by a processor.
    Type: Application
    Filed: October 18, 2019
    Publication date: April 30, 2020
    Inventors: Yisu HAI, Jonguk SONG
  • Publication number: 20200132768
    Abstract: A SAS connector conduction detecting system and a method thereof are provided. By a SAS connector on a detection circuit board and a mainboard SAS connector of a mainboard are connected to each other, and the detection circuit board and a test access port controller are connected in series with each other through a JTAG input connector and a JTAG output connector on the detection circuit board. The detection circuit board can provide the conduction detection for one mainboard SAS connector of the mainboard, thereby achieving the technical effect of improving the detection efficiency of the SAS connector.
    Type: Application
    Filed: December 19, 2018
    Publication date: April 30, 2020
    Inventor: Yuan Sang
  • Publication number: 20200132769
    Abstract: A SAS connector conduction detecting system and a method thereof are provided. A SAS connector of each of two detection circuit boards is connected to one mainboard SAS connector of the mainboard respectively, and a TAP controller and the two detection circuit boards are cascaded through the JTAG input connector and the JTAG output connector on each of the two detection circuit boards, so that the two detection circuit boards can provide the conduction detection for the mainboard SAS connectors correspondingly connected at the same time. Therefore, the improve efficiency of SAS connector conduction detection may be achieved.
    Type: Application
    Filed: December 19, 2018
    Publication date: April 30, 2020
    Inventor: Yuan Sang
  • Publication number: 20200132770
    Abstract: The invention relates to a circuit arrangement (100) for evaluating at least two switching states of an actuating element, having a moveable contact means (110) which is connectable to the actuating element, a first evaluation circuit (140a) with a first voltage divider, which has first node points (K1a, K2a, K3a, K4a, K5a) and a first tap (150a) for tapping off a first output signal (A1, A3, A5) of the first evaluation circuit (140a), at least one second evaluation circuit (140b) with a second voltage divider, which has second node points (K1b, K2b, K3b, K4b, K5b) and a second tap (150a) for tapping off a second output signal (A2, A4, A6) of the second evaluation circuit (140b), first contact surfaces (121a, 122a, 123a, 124a, 125a) which are each electrically connected to one of the first node points (K1a to K5a), and second contact surfaces (121b, 122b, 123b, 124b, 125b) which are each electrically connected to one of the second node points (K1b to k5b), wherein via the movable contact means (110), dependin
    Type: Application
    Filed: June 19, 2018
    Publication date: April 30, 2020
    Applicant: Valeo Schalter und Sensoren GmbH
    Inventors: Stefan Mueller, Raphael Mack
  • Publication number: 20200132771
    Abstract: A method includes measuring, by at least one processor, a time at which control circuitry sends an instruction to a switch structured to control transmission of electrical power. The method further includes sensing, by at least one sensor, a change in position of the switch in response to the instruction, and determining, by the at least one processor, a delay between the time at which the control circuitry sends the instruction and a time at which the change in position occurs. The method still further includes recording, by the at least one processor, the delay in a delay measurement queue and taking, by the at least one processor, an action with respect to the switch in response to the delay measurement queue.
    Type: Application
    Filed: December 20, 2019
    Publication date: April 30, 2020
    Applicant: Cummins Power Generation IP, Inc.
    Inventors: Jiaxiang Yan, Brian G. Dye
  • Publication number: 20200132772
    Abstract: Example embodiments described herein are directed towards dynamic state estimation of an operating state of a generator in a power system. Such estimation is performed for an individual generator in real time with improved accuracy and without the use of Global Position System (GPS) synchronization.
    Type: Application
    Filed: July 18, 2018
    Publication date: April 30, 2020
    Applicant: Imperial College Innovations Limited
    Inventors: Abhinav SINGH, Bikash PAL
  • Publication number: 20200132773
    Abstract: One illustrative method comprises retrieving a set of drive information associated with an operation of an electric drive in a time period from a drive control unit and one or more sensor units. The method further includes obtaining reliability information associated with the electric drive from a server. The reliability information is computed in the server, with the set of drive information and a model corresponding to a drive type of the electric drive. The reliability information includes a probability of occurrence of the abnormal condition in a specified future time period. The method further includes, providing at least one condition indication regarding the abnormal condition to one of a human machine interface and a drive controller based on the probability of occurrence of the abnormal condition.
    Type: Application
    Filed: October 31, 2019
    Publication date: April 30, 2020
    Inventors: Jinendra Gugaliya, Rahul Kumar-Vij, Abhilash Pani, Arpit Sisodia, Nikhil Venkata Saisantosh Podila
  • Publication number: 20200132774
    Abstract: In a storage battery system charging control device, on the basis of estimated temperature data until the end of life of a storage battery calculated by a power estimation unit, an ambient temperature estimation unit, and a temperature estimation unit, and a deterioration coefficient stored in a data storage unit, a capacity retention calculation unit sequentially calculates capacity retention data with respect to each state of charge until the end of life of the storage battery, using the state of charge as a parameter. A cumulative capacity calculation unit calculates a cumulative capacity corresponding to each state of charge, on the basis of the rated capacity of the storage battery and the capacity retention data. A charging control voltage determination unit determines charging control voltage on the basis of the cumulative capacities calculated by the cumulative capacity calculation unit.
    Type: Application
    Filed: March 5, 2018
    Publication date: April 30, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Satoshi HARA, Hisatoshi FUKUMOTO, Toshihiro WADA, Takahito IDA, Hiroki ISHIHARA
  • Publication number: 20200132775
    Abstract: A state estimation device receives, as inputs, an output from a target system and a nonlinear model that is a modeled target system, and estimates a state of the target system by using an extended Kalman filter. The nonlinear model includes a nonlinear continuous-time state equation. The device includes a state-and-error estimation unit that, on the basis of an observation equation of the nonlinear model, obtains an estimated state value and an estimated value of an error covariance matrix of the estimated state value, the estimated state value being indicative of an estimated state of the target system at a certain time point. The state estimation device also includes state-equation discretization circuitry that obtains a discrete-time state equation by discretizing the nonlinear continuous-time state equation on the basis of the estimated state value at this time point, by using a quadratic or higher-order integration technique.
    Type: Application
    Filed: June 14, 2017
    Publication date: April 30, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yurika KANAI, Mitsunori SAITO
  • Publication number: 20200132776
    Abstract: Systems and methods for detection and analysis of battery condition information may be used with respect to, for example, battery powered hand hygiene product dispensers. The battery condition information may be used to identify potential low battery conditions, the type of dispenser, the type or form of product dispensed, and/or to detect occurrence of a battery replacement event in a hand hygiene product dispenser. The battery condition information may further be used to determine a number of dispenses remaining for a hand hygiene product dispenser. The battery condition information may further be used to provide battery condition information for battery operated hand hygiene product dispensers in hand hygiene compliance systems.
    Type: Application
    Filed: December 9, 2019
    Publication date: April 30, 2020
    Inventors: Joseph P. Erickson, Viktor Slobodyan
  • Publication number: 20200132777
    Abstract: A battery control system for a vehicle includes a battery state estimator configured to obtain a battery cell open circuit voltage (OCV) of a battery in response to a charging system charging the battery to a maximum charging voltage. The system includes a negative voltage determination module configured to determine a negative OCV of the battery based on the obtained cell or battery OCV. The system includes a voltage shift determination module configured to identify a difference between the negative OCV of the battery and a previous negative OCV of the battery. The system also includes a charge voltage module configured to selectively reduce the maximum charging voltage to a reduced maximum charging voltage based on the difference and transmit the reduced maximum charging voltage to the charging system. The charging system is instructed to charge the battery such that the battery does not exceed the reduced maximum charging voltage.
    Type: Application
    Filed: October 30, 2018
    Publication date: April 30, 2020
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Raghunathan K, Ramona Y. YING
  • Publication number: 20200132778
    Abstract: Methods, systems, and computer programs encoded on computer storage medium, for identifying, for a power source, a lookup table (LUT) that includes, for each condition of the power source, i) a maximum power (p-max) of the power source for the condition and ii) a sustained power (p-sus) of the power source for the condition; examining the LUT to define calibration triggers associated with the conditions; identifying an event that satisfies a particular calibration trigger of the calibration triggers; in response to identifying the event, creating a workload for the power source; in response to the workload, determining for a particular condition associated with the particular calibration trigger, an updated p-max value for the particular condition and an updated p-sus value of the power source for the particular condition; and updating the LUT, for the particular condition, based on the updated p-max value and the updated p-sus value.
    Type: Application
    Filed: October 25, 2018
    Publication date: April 30, 2020
    Inventors: Richard C. Thompson, Merle Jackson Wood, Mohammed K. Hijazi, Adolfo S. Montero
  • Publication number: 20200132779
    Abstract: Methods, systems, and devices that include improvements to determining properties of a battery are described. For example, a method may include measuring one or more properties of a battery by a device communicatively coupled to the battery; transmitting the measured one or more properties to a computing device located remotely from the battery; detecting, by the computing device and based on the measured one or more properties, one or more anomalous conditions within the battery; and transmitting, by the computing device, an indication of the one or more anomalous conditions.
    Type: Application
    Filed: October 24, 2019
    Publication date: April 30, 2020
    Inventors: Mohammed Kechmir, Tony Reeves, Rui Zhou, David Letombe
  • Publication number: 20200132780
    Abstract: Provided is a power supply device which includes a plurality of battery modules each having a secondary battery and in which the battery modules are connected in series with one another according to a gate driving signal from a controller. An SOC control target value that is a target value for states-of-charge of the battery modules is changed according to the number of the battery modules that are available to be connected in series.
    Type: Application
    Filed: October 18, 2019
    Publication date: April 30, 2020
    Inventors: Kazuo OOTSUKA, Shuji TOMURA, Naoki YANAGIZAWA, Kyosuke TANEMURA, Shigeaki GOTO, Junta IZUMI, Kenji KIMURA
  • Publication number: 20200132781
    Abstract: Devices and methods for impedance measurements are provided. A switched capacitor network is operated to cause an alternating current to flow between a battery and an energy storage, and the alternating current and a voltage across the battery are measured.
    Type: Application
    Filed: October 18, 2019
    Publication date: April 30, 2020
    Inventors: Stefano Marsili, Klaus Hoermaier, Akshay Misra, Filippo Rosetti
  • Publication number: 20200132782
    Abstract: A battery capacity estimation apparatus including: a battery; a sensing unit connected to the battery to measure an OCV of the battery; an SOC estimation unit connected to the sensing unit to estimate an SOC of the battery using the OCV measured from the sensing unit; a memory unit storing data including the SOC and the OCV of the battery, the memory unit being connected to the SOC estimation unit; and an operation unit connected to the SOC estimation unit and the memory unit, the operation unit being configured to calculate an SOC reduction degree according to a use voltage range change and re-calculate a changed SOC according to a changed use capacity.
    Type: Application
    Filed: September 18, 2018
    Publication date: April 30, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Sung Ju HONG, Dong Hyun KIM, Seog Jin YOON
  • Publication number: 20200132783
    Abstract: A mobile device includes: a magnetometer configured to sense a magnetic field and to provide indications of the magnetic field; and a processor communicatively coupled to the magnetometer and configured to: determine an occurrence of a trigger condition associated with imminent motion of the mobile device, present motion of the mobile device, or decalibration of the magnetometer; respond to determining the occurrence of the trigger condition by causing the magnetometer to sense the magnetic field and to provide the indications of the magnetic field; and determine at least one bias of the magnetometer using the indications of the magnetic field.
    Type: Application
    Filed: October 28, 2019
    Publication date: April 30, 2020
    Inventors: Vivek SANKARAVADIVEL, William MORRISON, Himanshu SHAH, Songwon JEE, Manish KUSHWAHA
  • Publication number: 20200132784
    Abstract: A magnetic adhesive force monitoring system, magnetic wheeled robot and related method are disclosed. The system includes a magnetic field sensor measuring a stray field portion of a total magnetic field emitted by a magnetic wheel that is magnetically adhered to a ferromagnetic structure, the stray field portion including a portion of the total magnetic field redirected by the ferromagnetic structure. A controller determines a change in a magnetic adhesion force of the magnetic wheel to the ferromagnetic structure based on a change in the measured stray field portion of the total magnetic field. Embodiments also provide for determination of a contact point of the wheel with a ferromagnetic structure.
    Type: Application
    Filed: October 26, 2018
    Publication date: April 30, 2020
    Inventors: Moritz Benjamin Oetiker, Markus Wiesendanger, Walter Baur, Hans Wyder
  • Publication number: 20200132785
    Abstract: In a magnetic field source detecting apparatus, a magnetic sensor unit detects an intensity and a direction of a measurement target magnetic field on or over a surface of a test target object; and a position estimating unit estimates a position in a depth direction of a magnetic field source that exists at an unspecified position inside a test target object on the basis of the intensities and the directions of the measurement target magnetic field detected by the magnetic sensor at at least two 2-dimensional positions of the surface.
    Type: Application
    Filed: July 24, 2019
    Publication date: April 30, 2020
    Inventor: Yoshiharu YOSHII
  • Publication number: 20200132786
    Abstract: A magnetic sensor whose output characteristic is less sensitive to the environmental temperature is provided. Magnetic sensor 1 has free layer 24 whose magnetization direction changes in response to an external magnetic field, pinned layer 22 whose magnetization direction is fixed with respect to the external magnetic field, spacer layer 23 that is located between pinned layer 22 and free layer 24 and that exhibits a magnetoresistance effect, and at least one magnet film 25 that is disposed on a lateral side of free layer 24 and that applies a bias magnetic field to free layer 24. A relationship of 0.7 ?TC_HM/TC_FL?1.05 is satisfied, where TC_HM is Curie temperature of the magnet film, and TC_FL is Curie temperature of the free layer.
    Type: Application
    Filed: May 9, 2019
    Publication date: April 30, 2020
    Inventors: Kenichi TAKANO, Yuta SAITO, Hiraku HIRABAYASHI
  • Publication number: 20200132787
    Abstract: Methods, apparatuses, and computer program products for optimizing utilization of a wireless position sensor are disclosed. In a particular embodiment, a controller of the wireless position sensor receives output from a magnetic-field-dependent sensor of the wireless position sensor. The magnetic-field-dependent sensor is configured to register the strength of a magnetic field of a magnet attached to a mechanical component. In this example, the registered strength corresponds to a position of the mechanical component along a directional path. According to this embodiment, the controller generates a comparison of the output to one or more predefined movement signatures and based on the comparison, determines whether to change an operating state of one or more components of the wireless position sensor.
    Type: Application
    Filed: October 26, 2018
    Publication date: April 30, 2020
    Inventors: NICHOLAS J. HEEDER, EDWARD F. O'BRIEN, ADITYA BALASUBRAMANIAN, NEVIN R. MOLYNEAUX, MARK DUFFY
  • Publication number: 20200132788
    Abstract: Provided are methods for nuclear spin polarization enhancement via signal amplification by reversible exchange at very low magnetic fields. The spin polarization is hyperpolarization of isotopically enriched heteronuclei by using a catalyst and parahydrogen to create a complex using iridium and applying magnetic fields in the microtesia range to transfer the spin order from parahydrogen to the complex.
    Type: Application
    Filed: May 12, 2018
    Publication date: April 30, 2020
    Inventors: Eduard Y. Chekmenev, Danila A. Barskiy, Roman V. Shchepin, Warren S. Warren, Thomas Theis, Boyd Goodson
  • Publication number: 20200132789
    Abstract: A magnetic resonance (MR) local coil and an MR apparatus are provided. The MR local coil includes at least one antenna layer, at least one first layer, at least one second layer, and at least one third layer. In this structure, at least one MR antenna is arranged on the antenna layer. The at least one first layer is arranged between the at least one antenna layer and the at least one second layer, and the at least one second layer is arranged between the at least one first layer and the at least one third layer.
    Type: Application
    Filed: October 25, 2019
    Publication date: April 30, 2020
    Inventors: Yvonne Candidus, Thomas Kundner, Christina Strauchmann, Martin Zigann, Stephan Zink
  • Publication number: 20200132790
    Abstract: The present disclosure relates to techniques for the selection of one or more measuring coils in magnetic resonance imaging. Herein, account can be taken of a preselection in the selection of the one or more measuring coils from a plurality of candidate coils.
    Type: Application
    Filed: October 25, 2019
    Publication date: April 30, 2020
    Applicant: Siemens Healthcare GmbH
    Inventors: Stefan Meyer, Manuela Rick
  • Publication number: 20200132791
    Abstract: A method for designing gradient coils includes the following steps: a) defining an imaging volume as an ellipsoid; b) defining an elliptic-cylindrical surface enclosing the said ellipsoid; c) defining the current density at each point of the surface by a series of basis functions and corresponding coefficients expressed in elliptic cylindrical coordinates; d) describing the magnetic field generated at a generic point by the above defined current density integrated all over the said entire elliptic-cylindrical surface; e) determining the values of the coefficients of the basis functions by solving the inverse function for describing the magnetic field; f) generating a discrete winding patter of a gradient coil by using a stream function method from the continuous current density and by using a series of scattered contours of the stream function as the design of the winding patters according to a set total number of windings.
    Type: Application
    Filed: July 12, 2019
    Publication date: April 30, 2020
    Applicant: ESAOTE S.p.A.
    Inventor: Vincenzo PUNZO
  • Publication number: 20200132792
    Abstract: An imaging device may include a patient bore to house a subject to be imaged, wherein the patient bore includes one or more bore tubes. The imaging device may also include a gradient coil surrounding, at least partially, the patient bore and a radio frequency (RF) shield located outside the one or more bore tubes. Additionally, the imaging device may include an RF coil located within at least one of the bore tubes.
    Type: Application
    Filed: October 24, 2018
    Publication date: April 30, 2020
    Inventors: Mark Ernest Vermilyea, Justin Michael Ricci, Christina Vasil, Ek Tsoon Tan, Eric William Fiveland, Yihe Hua, Thomas Kwok-Fah Foo
  • Publication number: 20200132793
    Abstract: Various methods and systems are provided for acquiring k-space data for magnetic resonance imaging. In one example, after applying a phase encoding gradient, the k-space data of a phase angle is acquired while applying a frequency encoding gradient. An amplitude of the phase encoding gradient and a duration of the phase encoding gradient determined based on each and every of a phase angle of the phase encoding line and a duration of the frequency encoding gradient.
    Type: Application
    Filed: October 24, 2018
    Publication date: April 30, 2020
    Inventors: Lisha Nie, Yongchuan Lai, Xuan Liu
  • Publication number: 20200132794
    Abstract: The invention relates to a method of Dixon-type MR imaging. It is an object of the invention to provide a method that enables efficient and reliable water/fat separation using bipolar readout magnetic field gradients and avoids flow-induced leaking and swapping artifacts. According to the invention, an object (10) is subjected to an imaging sequence, which comprises at least one excitation RF pulse and switched magnetic field gradients, wherein two echo signals, a first echo signal and a second echo signal, are generated at different echo times (TE1, TE2). The echo signals are acquired from the object (10) using bipolar readout magnetic field gradients. A first single echo image is reconstructed from the first echo signals and a second single echo image is reconstructed from the second echo signals.
    Type: Application
    Filed: June 8, 2018
    Publication date: April 30, 2020
    Inventor: HOLGER EGGERS
  • Publication number: 20200132795
    Abstract: Method for MR imaging of an acquisition region during a patient examination. In order to determine a point spread function, in a prior measurement for each of additional gradient output directions, the method includes choosing, in the acquisition region, a slice lying outside of an isocenter of the MR device, which slice extends in a plane perpendicular to the additional gradient output direction under consideration; following a respective slice-selective excitation of the selected slice, acquiring first calibration data using the additional gradient pulse of the additional gradient output direction under consideration, and acquiring second calibration data omitting the additional gradient pulse in each case along a k-space line, wherein a same timing sequence of additional gradient pulse and readout time window is used as in the MR sequence; and calculating, from the first and second calibration data, the point spread function for the additional gradient output direction under consideration.
    Type: Application
    Filed: October 28, 2019
    Publication date: April 30, 2020
    Applicant: Siemens Healthcare GmbH
    Inventors: Thomas Beck, Daniel Polak
  • Publication number: 20200132796
    Abstract: Techniques are disclosed for determining coefficients for use in correcting a magnetic relaxation time constant, T, value obtained via magnetic resonance imaging when a pulse rate was at a first pulse rate value to a T value reflecting the T value that would have been obtained if the pulse rate was at a second pulse rate value. The technique includes, for each region of interest, pairing an obtained derivative, m, and an obtained offset, c, as an ordered pair (c, m). The technique further includes fitting the obtained plurality of ordered pairs (c, m) to a polynomial function, and determining the values of the coefficients from the polynomial function.
    Type: Application
    Filed: October 30, 2019
    Publication date: April 30, 2020
    Applicants: Siemens Healthcare GmbH, King's College London
    Inventors: Sebastien Roujol, Radhouene Neji, Li Huang
  • Publication number: 20200132797
    Abstract: To provide a laser distance measuring apparatus which can increase the measurement frequency per unit time by suppressing the increase in the data amount expressing the measurement time, while ensuring the distance measurement precision and the measurable distance. A laser distance measuring apparatus measures, with a time resolution, a light receiving time which is a time from a time point when the laser beam generating unit emits the laser beam to a time point when the light receiving unit outputs the light receiving signal; calculates an object distance which is a distance to the object, based on the measurement result of the light receiving time by the time measuring device; and changes the time resolution of the time measuring device used for calculation of the object distance, based on detection information.
    Type: Application
    Filed: September 11, 2019
    Publication date: April 30, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Shumpei KAMEYAMA, Takayuki YANAGISAWA, Masaharu IMAKI, Yusuke ITO, Yosuke TSUZAKI, Masahiro KAWAI
  • Publication number: 20200132798
    Abstract: According to one embodiment, an electronic apparatus includes processing circuitry. The processing circuitry estimates a first AoA of an arrival wave corresponding to a received signal from a receiving element array. The processing circuitry determines whether the estimated first AoA is an outlier or not. The processing circuitry outputs the first AoA as a second AoA, when the first AoA is not to be an outlier. The processing circuitry acquires one or more main-lobe angles assuming that the first AoA is a side-lobe angle of the receiving element array, when the first AoA is to be an outlier. The processing circuitry determines whether the main-lobe angle is an outlier or not. The processing circuitry outputs the main-lobe angle as the second AoA, when the main-lobe angle is not to be an outlier.
    Type: Application
    Filed: August 30, 2019
    Publication date: April 30, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Tazuko TOMIOKA
  • Publication number: 20200132799
    Abstract: Systems and methods for positioning a terminal device are disclosed. The method may include determining, by a positioning device, a first position of the terminal device in an area at a first time point; determining, by the positioning device, a second position of the terminal device in the area at a second time point; determining, by the positioning device, a plurality of hypothetical positions of the terminal device at a third time point; and providing, by the positioning device, a third position of the terminal device at the third time point, based on the first position, the second position, and the hypothetical positions using a transition model.
    Type: Application
    Filed: December 30, 2019
    Publication date: April 30, 2020
    Applicant: BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT CO., LTD.
    Inventors: Xianglong NIE, Weihuan SHU
  • Publication number: 20200132800
    Abstract: Disclosed is a method and apparatus for estimating a signal source, the method including receiving, in at least one receiving node, a signal emitted from a signal source, extracting a steering matrix corresponding to a virtual antenna array by vectorizing the signal received in the at least one receiving node, and estimating a location of the signal source based on the steering matrix.
    Type: Application
    Filed: August 15, 2019
    Publication date: April 30, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventor: JUNG-BIN KIM
  • Publication number: 20200132801
    Abstract: A geolocationing system and method for providing awareness in a multi-space environment, such as a hospitality environment or educational environment, are presented. In one embodiment of the geolocationing system, a vertical and horizontal array of gateway devices is provided. Each gateway device includes a gateway device identification providing an accurately-known fixed location within the multi-space environment. Each gateway device includes a wireless transceiver that receives a beacon signal from a proximate wireless-enabled personal locator device. The gateway devices, in turn, send gateway signals to a server, which determines estimated location of the wireless-enabled personal location device with angle of arrival modeling.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 30, 2020
    Inventors: William C. Fang, Raymond S. Horton, Thomas R. Miller, Vanessa Ogle
  • Publication number: 20200132802
    Abstract: A vehicular radar sensing system includes a radar sensor disposed at a vehicle so as to sense exterior of the vehicle, and a control. The radar sensor includes a plurality of transmitters that transmit radio signals, and a plurality of receivers that receive radio signals. The transmitters transmit first radio signals at a first frequency and second radio signals at a second frequency, with the second frequency different from the first frequency. First radio signals received are transmitted first radio signals from the plurality of transmitters that are reflected from an object exterior the vehicle. The control, via processing of the received first radio signals, determines presence of an object exterior of the vehicle. The transmitters transmit second radio signals at the second frequency for receiving at a remote communication device. Second radio signals received at the transmitter are second radio signals transmitted by the remote communication device.
    Type: Application
    Filed: October 24, 2019
    Publication date: April 30, 2020
    Inventor: Wilhelm Johann Wolfgang Wöhlte
  • Publication number: 20200132803
    Abstract: A radar module is provided for use in association with monitoring and predicting traffic conditions in the vicinity of a system vehicle having a stop indicator system. The radar module may include a data application module having logic circuitry for generating signals indicative of alert conditions associated with target vehicles traveling through a defined radar detection area near the system vehicle. The radar module may be programmed to execute various algorithms Which generate alert condition signals in response to determining and analyzing a current distance, a braking distance, and/or a velocity of target vehicles detected in the radar detection area.
    Type: Application
    Filed: October 26, 2018
    Publication date: April 30, 2020
    Inventor: Robert Nagy
  • Publication number: 20200132804
    Abstract: A radar apparatus and a leakage correction method thereof are provided. The radar apparatus includes a transmitter and a receiver. The transmitter includes a sinewave signal generator. The sinewave signal generator generates a sinewave signal. The receiver includes another sinewave signal generator and a correcting circuit. The receiver receives transmitting signals including the sinewave signal from the transmitter. The sinewave signal generator of the receiver generates another sinewave signal according to the amplitude of the transmitting signals or received transmitting signals. The correcting circuit corrects leakage situation on the received transmitting signals according to another sinewave signal. The phasor of sinewave form corresponding to the leakage situation relates to the phasor of another sinewave signal. Accordingly, the performance of receiver may be improved effectively.
    Type: Application
    Filed: October 24, 2019
    Publication date: April 30, 2020
    Applicant: RichWave Technology Corp.
    Inventors: Chiang-Hua Yeh, Hsiang-Feng Chi
  • Publication number: 20200132805
    Abstract: For example, a MIMO radar may include a plurality of Tx chains to process a plurality of digital Tx signals for transmission of a plurality of Tx RF signals; a plurality of Rx chains configured to output a plurality of digital Rx signals based on a plurality of Rx RF signals and a plurality of digital leakage-cancellation signals, wherein an Rx chain of the plurality of Rx chains is configured to output a digital Rx signal based on an Rx RF signal and a digital leakage-cancellation signal corresponding to the Rx chain; and a digital MIMO filter to generate the plurality of digital leakage-cancellation signals based on the plurality of digital Tx signals, the digital MIMO filter configured to generate the digital leakage-cancellation signal corresponding to the Rx chain by applying to the plurality of digital Tx signals a respective plurality of filters corresponding to the Rx chain.
    Type: Application
    Filed: December 27, 2019
    Publication date: April 30, 2020
    Inventors: Mark A. Lehne, Dan Ohev Zion, Alon Cohen, Arnaud Amadjikpe
  • Publication number: 20200132806
    Abstract: A single sampling radar signal processing system is disclosed, wherein the system comprises a pseudo-random sequence generator, an integral sampler, an ADC module, a controller and a compression domain detector, wherein the integral sampler is connected to the pseudo-random sequence generator, the controller and the ADC module, respectively, and the ADC module is connected to the compression domain detector. Since the initial integral sampling time of each pulse signal can be controlled when the integral sampler performs integral sampling on the pulse signal in the radar signal, each pulse signal is sequentially delayed by different times during integral sampling, and a sample value is obtained by compression sampling in a single pulse repetition period. A single sampling radar signal processing method is also disclosed.
    Type: Application
    Filed: October 24, 2019
    Publication date: April 30, 2020
    Inventors: Jianjun Huang, Xian Liu, Jingxiong Huang, Li Kang, Shengyu Liang, Zijian Zeng
  • Publication number: 20200132807
    Abstract: A system, device and method for wireless device localization using a differential evolution algorithm in a continuous trilateration process.
    Type: Application
    Filed: October 30, 2018
    Publication date: April 30, 2020
    Inventors: Liang KONG, Oleg TOLSTOV, Andrea KUKLENYIK, Florian RILL
  • Publication number: 20200132808
    Abstract: In an embodiment, a method of operating a radar includes: transmitting a radiation pulse with the radar during an active mode; asserting a sleep flag after transmitting the radiation pulse; turning off a crystal oscillator circuit of the radar after the sleep flag is asserted; clocking a counter of the radar with a low power oscillator during a low power mode after the sleep flag is asserted; asserting a timer flag when the counter reaches a first threshold; and transitioning into the active mode after the timer flag is asserted.
    Type: Application
    Filed: September 26, 2019
    Publication date: April 30, 2020
    Inventors: Reinhard-Wolfgang Jungmaier, Christoph Rumpler, Saverio Trotta
  • Publication number: 20200132810
    Abstract: Methods, apparatus, systems and articles of manufacture to compensate radar system calibration are disclosed. A radio-frequency (RF) subsystem having a transmit channel, a receive channel, and a loopback path comprising at least a portion of the transmit channel and at least a portion of the receive channel, a loopback measurer to measure a first loopback response of the RF subsystem for a first calibration configuration of the RF subsystem, and to measure a second loopback response of the RF subsystem for a second calibration configuration of the RF subsystem, and a compensator to adjust at least one of a transmit programmable shifter or a digital front end based on a difference between the first loopback response and the second loopback response to compensate for a loopback response change when the RF subsystem is changed from the first calibration configuration to the second calibration configuration.
    Type: Application
    Filed: July 16, 2019
    Publication date: April 30, 2020
    Inventors: Karthik Subburaj, Shankar Narayanamoorthy, Karthik Ramasubramanian, Anand Gadiyar, Dheeraj Kumar Shetty, Shailesh Joshi
  • Publication number: 20200132811
    Abstract: A method of operating a frequency modulated continuous wave (FMCW) radar system includes receiving, by at least one processor, digital intermediate frequency (IF) signals from a mixer coupled to a receive antenna. The method also includes computing, by the at least one processor, a motion metric based on the digital IF signals; operating, by the at least one processor, the FMCW radar system in a classification mode, in response to determining that the motion metric is above a threshold; and operating, by the at least one processor, the FMCW radar system in a detection mode, in response to determining that the motion metric is below the threshold for at least a first amount of time. An amount of power consumed by the FMCW radar system in the detection mode is less than an amount of power consumed by the FMCW radar system in the classification mode.
    Type: Application
    Filed: October 29, 2018
    Publication date: April 30, 2020
    Inventors: Piyali GOSWAMI, Sandeep RAO, Sachin BHARADWAJ
  • Publication number: 20200132812
    Abstract: An apparatus comprising an antenna array comprising a plurality of antennas to receive a plurality of radar signals reflected by a plurality of objects responsive to a transmitted radar signal; a doppler measurement module to determine, for a first reflected radar signal of the plurality of reflected radar signals, a first doppler measurement indicating a velocity component based on a comparison of the first reflected radar signal to the transmitted radar signal; a phase offset measurement module to determine a first phase offset of the first reflected radar signal received at a first antenna of the plurality of antennas relative to a phase of the first reflected radar signal received at a reference antenna of the plurality of antennas; and a phase offset calibration module to determine, for the first antenna, a first phase offset calibration error based on the first doppler measurement and the first phase offset.
    Type: Application
    Filed: December 27, 2019
    Publication date: April 30, 2020
    Inventors: Nir Dvorecki, Leor Banin, Yuval Amizur, Yaniv Frishman
  • Publication number: 20200132813
    Abstract: A space is formed behind a radiator grille to ensure passage of air from an air hole into a vehicle. The radiator grille includes a planar mounting portion having an opening. A lidar assembly includes a lidar and an attachment. The attachment is fastened to the mounting portion using screws and bolts, thereby mounting the lidar assembly to the mounting portion. The lidar, in its mounted state, is exposed from the opening.
    Type: Application
    Filed: October 17, 2019
    Publication date: April 30, 2020
    Inventor: Shunsuke YAMAMOTO
  • Publication number: 20200132814
    Abstract: A distributed FM LiDAR system that provides a central unit that includes a frequency modulated optical signal source and a central receiver for reflected light, along with multiple optical heads that include only optical components is described. No optical delay lines or timing compensation photonic or electronic circuitry is necessary between the central unit and the optical heads. The relatively simple optical heads do not require extensive protection from shock or vibration, and can be distributed between a vehicle and a towed trailer or similar vehicle, with connections being provided by an optical coupling.
    Type: Application
    Filed: December 29, 2019
    Publication date: April 30, 2020
    Inventors: Scott Singer, Lutfollah Maleki
  • Publication number: 20200132815
    Abstract: The invention relates to a transmitting device (6) for an optical sensing device (5) of a motor vehicle (1), with at least one light source unit (32), with an optical device (17) that influences the beam shape of the light emitted by the at least one light source unit (32), wherein the light is transmitted into the surroundings (4) of the motor vehicle (1) by means of the transmitting device (6), wherein the transmitting device (6) comprises a housing (15) in which the light source unit (32) and the optical device (17) are arranged and as a result a pre-assembly module (16) is formed for installation on a printed circuit board (36) of the transmitting device (6).
    Type: Application
    Filed: March 19, 2018
    Publication date: April 30, 2020
    Applicant: Valeo Schalter und Sensoren GmbH
    Inventors: Ho Hoai Duc Nguyen, Peter Horvath
  • Publication number: 20200132816
    Abstract: A LIDAR apparatus for scanning a scan region with at least one beam is described. The LIDAR apparatus includes at least one beam source for generating the at least one beam; having a mirror for deflecting the at least one generated beam toward the scan region; and having a detector mirror for deflecting at least one beam, reflected at an object, onto a defined region of a detector, the mirror and the detector mirror being disposed on a rotor rotatably around a vertical rotation axis, and the detector mirror focusing the at least one reflected beam onto the detector. A method for operating a LIDAR apparatus is also described.
    Type: Application
    Filed: April 18, 2018
    Publication date: April 30, 2020
    Inventors: Remigius Has, Annemarie Holleczek, Matthias Baier
  • Publication number: 20200132817
    Abstract: An optical distance measurement apparatus according to an aspect of the disclosure includes an irradiator, a plurality of SPADs, a plurality of signal output units, a response number detector, a timing identifier, and a timing corrector. The response number detector detects a response number representing the number of responding one of the SPADs based on a pulse signal. The timing identifier identifies a temporary timing based on a state of variation in the response number along a time series and identifies a detection timing representing a timing when the optical distance measurement apparatus detects light in accordance with the temporary timing. The timing corrector acquires a correction time representing a time difference between the temporary timing and a true timing corresponding to a distance to an object and sets a timing corrected from the temporary timing by the correction time as the detection timing.
    Type: Application
    Filed: December 19, 2019
    Publication date: April 30, 2020
    Inventors: Akifumi UENO, Takehiro HATA, Shinji KASHIWADA