Patents Examined by Gregory C. Issing
  • Patent number: 10746551
    Abstract: A positioning apparatus according to the present invention includes: a triaxial acceleration sensor zero point calculating unit which determines whether or not the moving body is performing horizontal plane uniform linear traveling, and calculates a zero point of the triaxial accelerations when a determination is made that the moving body is performing the horizontal plane uniform linear traveling, based on at least triaxial speeds, a longitudinal acceleration, and triaxial accelerations while the moving body is traveling; an apparatus housing attachment angle calculating unit which calculates a pitch direction attachment angle and a roll direction attachment angle based on the zero point of the triaxial accelerations; a triaxial angular velocity coordinate transforming unit which coordinate-transforms the triaxial angular velocities; and a position estimating unit which estimates a current position of the moving body based on at least a yaw rate obtained from the triaxial angular velocities.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: August 18, 2020
    Inventors: Tadatomi Ishigami, Takashi Irie, Masatoshi Fujii, Kohei Fujimoto, Norihiro Nishiuma, Atsushi Mori
  • Patent number: 10741912
    Abstract: A feed network, steering apparatus and system for a steerable antenna array are described. The feed network includes a waveguide assembly including first and second radial transverse electromagnetic (TEM) waveguides, and first and second variable phase shifters positioned in the respective TEM waveguides. The variable phase shifters cause additional progressive electrical phase shifts in respective rings of radiating elements, directly proportional to the angular position of the radiating elements in the ring, from 0 to a controllable integer multiple of 2? radians. The feed network includes first and second phase-mode feed probes coupled to the respective radial TEM waveguides, which provide respective phase-mode feed ports. When the feed network is coupled to the antenna array, two consecutive-order phase modes are provided at the phase-mode feed ports. The orders of the phase modes are selectable using a phase shift control signal controlling the integer multiple of the variable phase shifters.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: August 11, 2020
    Inventor: Marek Klemes
  • Patent number: 10739466
    Abstract: A technology is described for mitigating global positioning system (GPS) spoofer signals. A potentially spoofed GPS signal received via an antenna coupled to a GPS receiver can be identified. The potentially spoofed GPS signal can be applied to a spoofer signal nulling loop to generate a set of spoofer nulling weights. The set of spoofer nulling weights can produce a direction vector associated with the potentially spoofed GPS signal. The direction vector can be compared to a beamsteering vector. The potentially spoofed GPS signal can be determined as being a spoofer GPS signal when a misalignment between the direction vector and the beamsteering vector is above a defined threshold. The spoofer GPS signal can be converted to a spoofer mitigation signal that is applied to satellite track channels of the GPS receiver. The spoofer mitigation signal can produce a spatial null in a direction of the spoofer GPS signal.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: August 11, 2020
    Assignee: Raytheon Company
    Inventor: Paul H. Grobert
  • Patent number: 10732275
    Abstract: The present disclosure relates to a sensor network, Machine Type Communication (MTC), Machine-to-Machine (M2M) communication, and technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the above technologies, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A device for measuring a distance, according to one embodiment of the present invention, includes a transceiver configured to transmit, to another device, a signal and receive, from the another device, another signal according to the signal, and a controller configured to determine a first interval based on the signal and the another signal and determine a distance between the device and the another device based on the first interval, a second interval regarding the another device, and a delay regarding an internal circuit of the device.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: August 4, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Ho Oh, Jae-Hwa Kim, Jung-Min Yoon, Sung-Rok Yoon, Sang-Hyun Chang, Kil-Sik Ha
  • Patent number: 10725184
    Abstract: Methods and apparatuses are provided for use with mode switchable navigation radios and the like. The methods and apparatuses may be implemented to selectively switch between certain operating modes based, at least in part, one or more determinations relating to one or more satellite positioning signals and/or space vehicles.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: July 28, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Dominic Gerard Farmer, Jie Wu, Lalitaprasad V Daita, Douglas Neal Rowitch, Wyatt Thomas Riley
  • Patent number: 10725181
    Abstract: An in-band pseudolite wireless positioning method, system and device are provided. The system has a base station, a pseudolite and a terminal. The base station transmits identifier information to the pseudolite after correcting a transmission clock of the pseudolite and transmits a pseudolite array and positioning correction information to the terminal. The pseudolite generates a random positioning signal sequence according to the identifier information and transmits a positioning signal according to the transmission clock and the random positioning signal sequence. The terminal generates a random positioning signal sequence of the pseudolite according to the pseudolite array and the positioning correction information.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: July 28, 2020
    Inventors: Shijun Chen, Liujun Hu, Guanghui Yu, Haitao Lu
  • Patent number: 10720702
    Abstract: A method for correcting antenna phases includes a beam angle calculating step, beam angle adjusting step, antenna emission measuring step and beam angle correcting step. The method involves comparing a difference between the ideal antenna phase value and the measured beam angle value, determining according to the difference that the beam direction of the antenna needs to be corrected, and adding the difference to a current ideal antenna phase value in the algorithm to calculate another ideal antenna phase value for being sent to the phase control circuit and used in executing the beam angle adjusting step in a next instance of measurement process until the beam angle correcting step finds the difference which requires no correction of the beam direction of the antenna. Therefore, temperature-dependent errors do not occur to beam directions, thereby enhancing the communication efficiency of an antenna system.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: July 21, 2020
    Inventors: Hsi-Tseng Chou, Dun-Yuan Cheng, Kung-Yu Lu, Nan-Wei Chen, Ming-Whay Lai
  • Patent number: 10705176
    Abstract: Systems and methods are provided for determining a direction of a signal received at an antenna array. An antenna array includes a plurality of antenna elements, including a reference element. A signal combiner element is configured to combine weighted signals from a subset of the plurality of antenna elements to provide a composite output. An adaptive processing component is configured to determine an optimal set of weights for the subset of the plurality of antenna elements. An angle of arrival search component is configured to find a direction of minimum gain given the optimal set of weights.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: July 7, 2020
    Inventor: David K. Mesecher
  • Patent number: 10698074
    Abstract: The present invention relates to a system for locating a mobile element, characterized in that it comprises: at least one beacon emitting radio messages; at least one relay capable of emitting a second message with a known lag following the receipt of a first message originating from said at least one beacon; at least one sensor capable of measuring in a local time base the instants of arrival of the messages originating from said at least one beacon and at least one relay; at least one position computer, that can be central or onboard each sensor, capable of determining the position of a mobile element on the basis of the arrival time information; the mobile element being able to be a beacon, a relay or a sensor.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: June 30, 2020
    Assignee: Blinksight
    Inventors: Matthieu Mutz, Stéphane Mutz
  • Patent number: 10690779
    Abstract: A baseband tracking channel in a GNSS receiver is provided. The baseband tracking channel comprises: a code generator to generate a local signal correlating with an incoming signal received by the GNSS receiver; a multiplier that multiplies the local signal with a baseband signal corresponding to an incoming signal received by the GNSS receiver to generate a code removed signal; a prompt correlator including at least one integration register that integrates samples of the code removed signal corresponding to a first portion of each pseudorandom noise code chip of the code removed signal to provide a first integration register output, and integrates samples corresponding to a second portion of each PRN code chip to provide a second integration register output; and a side peak tracking detection module that generates information indicating when side peak tracking is occurring based on the first integration register output and the second integration register output.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: June 23, 2020
    Assignee: Honeywell International Inc.
    Inventors: Jussi Raasakka, Martin Orejas, Tomas Hynek, Jakub Skalicky
  • Patent number: 10684349
    Abstract: The present invention relates to a method for indoor localization of a user equipped with a localization device having electromagnetic signal receiver means and means for detecting the orientation in a predetermined spatial reference system, wherein the indoor space is divided up into a plurality of rooms each of which includes a plurality of spatial volumes or areas, nodes, which are connected together in a directed-graph arrangement, and wherein a plurality of radio transmitters each designed to emit a respective localization signal are arranged inside this space. The method is based on the synergic use of three localization methods, i.e. fingerprinting, inertial navigation with intelligent step recognition and proximity localization.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: June 16, 2020
    Assignee: NEXTOME S.R.L.
    Inventors: Domenico Colucci, Vincenzo Dentamaro, Paolo Giglio, Giangiuseppe Tateo
  • Patent number: 10677944
    Abstract: Novel solutions, which can include devices, systems, methods, than can measure earthquakes and other displacement events. Some solutions feature the integration of real-time, high-rate global navigation satellite system (“GNSS”) displacement information with acceleration and/or velocity data within a single device to create very high-rate displacement records. The mating of these two instruments allows the creation of a new, very high-rate displacement measurement device that has the full-scale displacement characteristics of GNSS and high-precision dynamic motions of seismic technologies. Such a device can be used for earthquake early warning studies and other mission critical applications, such as volcano monitoring, building, bridge and dam monitoring systems.
    Type: Grant
    Filed: August 23, 2014
    Date of Patent: June 9, 2020
    Assignee: Trimble Inc.
    Inventors: Michael E. Jackson, Paul Passmore, Hans-Gerd Dünck-Kerst
  • Patent number: 10663601
    Abstract: The invention provides an atmospheric monitoring and measurement system based on the processing of global navigation satellite system radio-frequency signals. The invention is characterized by an open-loop demodulation architecture to extract amplitude and phase information from the received satellite signals, and a signal processing technique which can provide statistics relating to the amplitude and phase variations induced by the atmosphere.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: May 26, 2020
    Inventors: James T Curran, Michele Bavaro, Joaquim Fortuny-Guasch
  • Patent number: 10622698
    Abstract: A method of receiving a satellite signal using a satellite dish connected to a receiver, the method includes a peak identification stage including automatically sweeping the satellite dish to identify peaks of satellite signals received by the receiver having a center frequency matching the center frequency of the satellite signal, a peak evaluation stage including automatically evaluating one or more said peaks by determining the bandwidth thereof and choosing the peak having a bandwidth matching the bandwidth of the satellite signal, and a signal strength maximizing stage including automatically sweeping the satellite dish until the signal strength of a satellite signal having said bandwidth is maximized.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: April 14, 2020
    Assignee: Windmill International, Inc.
    Inventors: Matthew Richards, George Davison
  • Patent number: 10613232
    Abstract: The present invention provides a ground-based augmentation system capable of predicting a tropospheric refractive index with high precision. The system includes a ground base station and an airborne receiver. The ground base station includes a ground acquisition device, a processor, and a transmitter. The ground acquisition device is configured to acquire meteorological parameters of a plurality of years, and use the acquired meteorological parameters as historical data. The processor is configured to call the historical data and establish a back propagation (BP) neural network to predict a refractive index. The transmitter is configured to send the refractive index predicted by the processor to the airborne receiver. With the present invention, the tropospheric refractive index is predicted for different weather conditions, thus improving the precision of tropospheric refractive index prediction.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: April 7, 2020
    Inventors: Zhipeng Wang, Yanbo Zhu, Yuanyuan Zhuang
  • Patent number: 10613233
    Abstract: A GNSS receiver comprising at least one processing device configured to, in at least one first process: group satellites into subsets for a first distribution, each satellite included in one subset, each subset includes at least one satellite and less than all satellites, at least one subset includes more than one satellite; store the first distribution in memory as primary distribution; calculate a protection level based on navigation sub-solutions calculated using the first distribution; determine whether a new distribution of satellites is needed; when new distribution is not needed, the processing device configured to recalculate the protection level based on second navigation sub-solutions calculated using the first distribution; when new distribution is needed, the processing device configured to: group satellites into subsets for a second distribution; store the second distribution in memory as the primary distribution; recalculate the protection level based on third navigation sub-solutions calculated
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: April 7, 2020
    Assignee: Honeywell International Inc.
    Inventors: Jakub Skalicky, Martin Orejas, Jussi Raasakka, Michal Pfleger
  • Patent number: 10598796
    Abstract: Aspects of the disclosure provide an apparatus that includes a receiving circuit and a processing circuit. The receiving circuit is configured to receive a satellite signal transmitted from a satellite. The satellite signal carries navigation bits that are transmitted with a navigation bit length. The processing circuit is configured to construct aiding navigation bits based on aiding ephemeris and almanac information that are provided by an aiding source other than the satellite signal. Further, the processing circuit is configured to strip the navigation bits from the satellite signal based on the aiding navigation bits to generate a post-stripping signal, and perform an integration on the post-stripping signal.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: March 24, 2020
    Assignee: Marvell International Ltd.
    Inventors: Yongsong Wang, Zhike Jia, Juhong Xing, PeiYang Zhang, Mobo Qiu, Kun Xu
  • Patent number: 10591308
    Abstract: A tracking device is provided and includes a processing unit that is in communication with a networking unit and a memory unit. The memory unit has executable instructions stored thereon, which, when executed, cause the processing unit to control the networking unit to coarsely identify a region currently occupied by a tracked device and determine an accurate location of the tracked device responsive to a predefined event.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: March 17, 2020
    Inventors: Yuk L. Chan, Heidi Lagares-Greenblatt, Deepti M. Naphade
  • Patent number: 10591611
    Abstract: A method for determining a wrong synchronization of a receiver with a satellite, associated receiver and computer program product, is implemented after the acquisition phase and includes the following steps: generating first and second test signals; for each correlation interval, determining a first prompt correlator corresponding to the correlation value between the received signal and the first test signal, and a second prompt correlator corresponding to the correlation value between the received signal and the second test signal; determining first and second energy values corresponding to the energy of the first and second correlators, respectively; determining a wrong synchronization indicator based on the difference between the first and second energy values; and detecting a wrong synchronization based on this indicator.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: March 17, 2020
    Assignee: Thales
    Inventors: Nicolas Martin, Denis Bouvet
  • Patent number: 10578747
    Abstract: A method for reduced-outlier satellite positioning includes receiving a set of satellite positioning observations at a receiver; generating a first receiver position estimate; generating a set of posterior observation residual values from the set of satellite positioning observations and the first receiver position estimate; based on the set of posterior observation residual values, identifying a subset of the satellite positioning observations as statistical outliers; and after mitigating an effect of the statistical outliers, generating a second receiver position estimate having higher accuracy than the first receiver position estimate.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: March 3, 2020
    Assignee: Swift Navigation, Inc.
    Inventors: Paul Grgich, Matt Peddie