Patents Examined by Bo Fan
  • Patent number: 11906647
    Abstract: In one aspect, a method of determining a location of a user within an indoor space, includes emitting a radiofrequency signal into the indoor space, receiving backscattered training radiofrequency signals, including multipath, for at least one location within the indoor space, converting the received training signals into a point cloud for each location of the at least one location, assigning a signature for each location based on the point cloud for each location, receiving additional radiofrequency signals, including multipath, converting the additional radiofrequency signals into an additional point cloud, and determining a location of the user by comparing the additional point cloud to the assigned signatures.
    Type: Grant
    Filed: April 26, 2023
    Date of Patent: February 20, 2024
    Assignee: Koko Home, Inc.
    Inventors: Itay Cnaan-On, Ali Rostami, Bradley Michael Eckert, Saurabh Gupta
  • Patent number: 11906646
    Abstract: The invention discloses a method for estimating the air propagation delay of a direct wave, wherein an azimuth, an elevation angle and a total delay of a multipath wave reaching a receiving end are obtained through a receiving device; a departure angle of a reflected wave is obtained using a geometric relationship of wave reflection; a hypothetical point on a direct wave ray is selected as a transmitting end, and hereby the air propagation delay of the direct wave and the position of a reflection point of the reflected wave are calculated; the propagation delay and distance of the reflected wave are calculated according to the total delay of the direct wave and the reflected wave and the position of the hypothetical point. The invention can obtain the air propagation delay of the direct wave, thereby obtaining a propagation distance of the direct wave and fulfilling the requirements of ranging and positioning.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: February 20, 2024
    Assignee: Southeast University
    Inventors: Haiming Wang, Bensheng Yang, Wenhao Wu
  • Patent number: 11906657
    Abstract: A method and system device provides a unique object identification process by obtaining information from one or more of radar signals, infrared signals, optical signals, audio signals, and other signals. The method includes continuously receiving object data at the device, applying by a machine learning system, a set of parameters to process the object identification and confidence level, and outputting or updating the object identification, confidence level, and actionable recommendations. The radar data includes a Doppler signature having a wrapped signal due to a sampling rate of the radar system. The Doppler signature is used to train the machine learning system to identify drone types.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: February 20, 2024
    Assignee: Fortem Technologies, Inc.
    Inventors: David Preece, Mikko Valimaki, Mitchell Kay Oldroyd, Adam Eugene Robertson, Bryan Alan Davis, Matthew Elliott Argyle, David Thimm, James David Mackie
  • Patent number: 11899131
    Abstract: A method is disclosed for converting source radar data of a source configuration of a radar system target radar data of a target configuration. The method comprises: providing a source array of grid cells for source reflex locations; determining, for each respective grid cell in the source array, a probability or frequency that source reflex locations are located in the respective grid cell; forming a source tensor including the source array populated with the probability or frequency for each grid cell; transforming the source tensor into a target tensor including a target array of grid cells for the target reflex locations and indicating the probabilities or frequencies of the target reflex locations for each respective grid cell; and generating the target radar data by sampling the location coordinates of the target reflex locations.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: February 13, 2024
    Assignee: Robert Bosch GmbH
    Inventors: Andrej Junginger, Michael Johannes Oechsle, Thilo Strauss
  • Patent number: 11899094
    Abstract: Systems, methods, and circuitries are disclosed for compressing radar data. In one example, a method includes storing radar data in a memory, the radar data being stored in a data cube having a slow-time dimension, a fast-time dimension, and a channel dimension. The data cube is divided into one or more zones. For each zone a number of data matrices is selected based on a compression factor. Sets of data matrices containing the number of data matrices are formed and, for each set of data matrices, for each data matrix, the data vectors are coded to generate a coded data matrix. A coding for data vectors in a data matrix is the same and a coding for different data matrices is different. The coded data matrices are combined to generate a compressed data matrix for the zone and the compressed data matrices for the one or more zones are stored.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: February 13, 2024
    Assignee: Infineon Technologies AG
    Inventors: Mayeul Jeannin, Farhan Bin Khalid, Dian Tresna Nugraha, Andre Roger
  • Patent number: 11894613
    Abstract: Vehicles with adjustable metamaterial systems, integrated on the outside or inside of their non-conductive fuselage, have the ability to control their radar cross section dynamically for the purposes of evading detection or spoofing their size by looking larger or more numerous. The frequency response of a metamaterial system can be obtained by combining the RF properties of the individual metamaterial layers that comprise it. A first metamaterial layer that can controllably switch between transmissive and reflection in a relevant frequency band and a second absorptive layer results in a controllable radar cross-section with the ability of controlling the amplitude of the reflected radar pulse. The first layer can be modulated with a repetitive waveform to change the phase of a reflected wave that results in a doppler shift in frequency. The frequency of the modulation can result in a change in range, velocity, or combinations of both.
    Type: Grant
    Filed: March 28, 2023
    Date of Patent: February 6, 2024
    Assignee: Notch, Inc.
    Inventor: Shahriar Khushrushahi
  • Patent number: 11885894
    Abstract: A system jointly estimates states of GNSS receivers moving in a region using measurements of a Global Navigation Satellite System (GNSS). The system clusters the GNSS receivers into different clusters subject to a constraint on an upper bound on each cluster and executes a set of probabilistic filters corresponding to the set of clusters to estimate the states of GNSS receivers in each cluster. Each probabilistic filter estimates the states of the GNSS receivers in a corresponding cluster by fusing the GNSS data collected from the GNSS receivers in the cluster to jointly reduce an estimation error of each of the GNSS receivers in the cluster. The DES updates the cluster assignments based on a measure of estimation error in the states of different GNSS receivers in different clusters.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: January 30, 2024
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Marcus Greiff, Karl Berntorp, Stefano Di Cairano
  • Patent number: 11888215
    Abstract: An antenna system for a mobile communications base station and a method of operating a communications network including a base station is described. The antenna system includes an antenna array for beamforming and is configured either as a radar sensor, a communications antenna or a combined radar sensor. A radar image may be used to determine a map of objects in the vicinity of the antenna system and to adapt the beam-steering or beamforming of the antenna system.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: January 30, 2024
    Assignee: NXP B.V.
    Inventors: Paul Mattheijssen, Konstantinos Doris, Dominicus Martinus Wilhelmus Leenaerts, Mark Tomesen
  • Patent number: 11879986
    Abstract: The present disclosure discloses a three-dimensional co-prime cubic array direction-of-arrival estimation method based on a cross-correlation tensor, mainly solving the problems of multi-dimensional signal structured information loss and Nyquist mismatch in existing methods and comprising the following implementing steps: constructing a three-dimensional co-prime cubic array; carrying out tensor modeling on a receiving signal of the three-dimensional co-prime cubic array; calculating six-dimensional second-order cross-correlation tensor statistics; deducing a three-dimensional virtual uniform cubic array equivalent signal tensor based on cross-correlation tensor dimension merging transformation; constructing a four-dimensional virtual domain signal tensor based on mirror image augmentation of the three-dimensional virtual uniform cubic array; constructing a signal and noise subspace in a Kronecker product form through virtual domain signal tensor decomposition; and acquiring a direction-of-arrival estimation
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: January 23, 2024
    Assignee: Zhejiang University
    Inventors: Zhiguo Shi, Hang Zheng, Chengwei Zhou, Jiming Chen, Yong Wang
  • Patent number: 11860266
    Abstract: A method of detecting a life includes receiving an echo signal including an in-phase component and a quadrature component, performing a preprocessing procedure on the echo signal to generate a preprocessed signal, generating, according to the preprocessed signal, complex conjugate data associated with the in-phase component and the quadrature component, performing a first time-domain-to-frequency-domain transform on the complex conjugate data to generate Doppler spectrogram data comprising a plurality of positive velocity energies and a plurality of negative velocity energies, generating combined Doppler spectrogram data according to the plurality of positive velocity energies and the plurality of negative velocity energies, performing a second time time-domain-to-frequency-domain transform on the combined Doppler spectrogram data to generate spectrum data, and determining whether a life is detected according to the spectrum data.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: January 2, 2024
    Assignee: RichWave Technology Corp.
    Inventors: Keng-Hao Liu, Han-Jieh Chang, Hsiang-Feng Chi
  • Patent number: 11860267
    Abstract: A method for interpolated virtual aperture array radar tracking includes: transmitting first and second probe signals; receiving a first reflected probe signal at a radar array; receiving a second reflected probe signal at the radar array; calculating a target range from at least one of the first and second reflected probe signals; corresponding signal instances of the first reflected probe signal to physical receiver elements of the radar array; corresponding signal instances of the second reflected probe signal to virtual elements of the radar array; interpolating signal instances; calculating a first target angle; and calculating a position of the tracking target relative to the radar array from the target range and first target angle.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: January 2, 2024
    Assignee: Ambarella International LP
    Inventors: Lang Hong, Steven Hong
  • Patent number: 11855142
    Abstract: An embodiment is a semiconductor structure. The semiconductor structure includes a fin on a substrate. A gate structure is over the fin. A source/drain is in the fin proximate the gate structure. The source/drain includes a bottom layer, a supportive layer over the bottom layer, and a top layer over the supportive layer. The supportive layer has a different property than the bottom layer and the top layer, such as a different material, a different natural lattice constant, a different dopant concentration, and/or a different alloy percent content.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: December 26, 2023
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Jung-Chi Tai, Chii-Horng Li, Pei-Ren Jeng, Yen-Ru Lee, Yan-Ting Lin, Chih-Yun Chin
  • Patent number: 11852736
    Abstract: An electronic device is provided. The electronic device includes a flexible printed circuit board (FPCB) including a first conductive patch and a second conductive patch, a wireless communication circuitry electrically coupled with the first conductive patch and the second conductive patch, and a processor electrically coupled with the wireless communication circuitry. The first conductive patch is fed from the wireless communication circuitry at a first point located at a first edge of the first conductive patch or a second point located at a second edge different from the first edge, and operates as an antenna radiator which receives a radio frequency (RF) signal of a specified frequency band, the second conductive patch is fed from the wireless communication circuity at a third point of the second conductive patch, and operates as an antenna radiator which transmits or receive an RF signal of a specified frequency band.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: December 26, 2023
    Inventors: Muyeol Lee, Seunghoon Kim, Jeongsik Kim, Changwoo Son, Jiwoo Lee
  • Patent number: 11846712
    Abstract: A system can include a producer device to receive reference data from a reference station. The system can include a queue device to store a reference message, corresponding to the reference data, in a message queue. The system can include a mapping device to store mapping information indicating that the message queue is associated with the reference station. The system can include a consumer device to identify the message queue as being associated with a microservice to be provided to a client device based on a microservice request. The message queue can be identified based on the mapping information. The consumer device can obtain the reference message from the message queue, generate corrections data associated with the client device, and provide the corrections data.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: December 19, 2023
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Lee E. Sattler, Ashish Sardesai, Mani Tadayon, Dante J. Pacella, Saravanan Mallesan, Venkata Josyula, Christopher N. Delregno, Jean M. McMANUS, Mohammed M. Rahman, Matthew W. Turlington
  • Patent number: 11846715
    Abstract: Described are methods, systems, and devices for determining position using Differential Global Navigation Satellite (DGNSS) measurements. Techniques described herein involve taking carrier phase measurements at a reference station or other GNSS receiver at a known location, and combining the carrier phase measurements with pseudorange measurements taken at the reference station to resolve carrier phase ambiguity and to, in combination with pseudorange measurements taken at a mobile device, obtain a differentially corrected measurement that can be used to estimate a position of the mobile device. The differentially corrected measurement can be a double differential measurement based on signals from a pair of GNSS satellites.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: December 19, 2023
    Assignee: QUALCOMM Incorporated
    Inventor: Min Wang
  • Patent number: 11846723
    Abstract: A method for calibrating a target simulator for an active environment detection system includes: calibrating a complete signal path comprising a first signal path and a second signal path by determining a first deviation of a first value of at least one signal parameter from a first reference value of the at least one signal parameter; calibrating one of the first signal path and the second signal path by determining a second deviation of a second value of the at least one signal parameter from a second reference value of the at least one signal parameter; and calibrating the other of the first signal path and the second signal path by offsetting of the first deviation with the second deviation.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: December 19, 2023
    Assignee: DSPACE GMBH
    Inventors: Tim Fisch, Albrecht Lohoefener, Jeffrey Paul
  • Patent number: 11841447
    Abstract: A method includes obtaining signal information based on wireless signals received from a target electronic device via a first antenna pair and a second antenna pair. The first and second antenna pairs are aligned along different axes. The signal information includes channel information, range information, a first angle of arrival (AoA) based on the first antenna pair, and a second AoA based on the second antenna pair. The method also includes obtaining tagging information that identifies an environment in which the electronic device is located. The method also includes generating encoded information from a memory module based on the tagging information. The method further includes initializing a field of view (FoV) classifier based on the encoded information. Additionally, the method includes determining whether the target electronic device is in a FoV of the electronic device based on the FoV classifier operating on the signal information.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: December 12, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Khuong N. Nguyen, Yuming Zhu, Neha Dawar
  • Patent number: 11835632
    Abstract: The invention relates to a survey system comprising an antenna, a sensor, and a control unit. The antenna is configured for receiving one or more positioning signal, such as for example global navigation satellite system (GNSS) signals. The sensor is configured for determining whether the antenna is in a static state, and/or producing information based on which a determination as to whether the antenna is in a static state can be made. The control unit is configured for, if the antenna is determined to be in a static state, obtaining a positioning measurement based on the positioning signal(s). The invention also relates to a method for operating such a system, and to computer programs and computer program products for carrying out such a method.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: December 5, 2023
    Assignee: Trimble Inc.
    Inventor: Adrian Kipka
  • Patent number: 11835633
    Abstract: Disclosed is a system for providing multiple location corrections streams to receiving devices using a high-power transmitter, such as a television station, for correcting errors in the determination of a location of a receiving device based on satellite data. The system enables a receiving device to select one of the location corrections streams for processing without any upstream/return path link to the television station or processing server. The system includes multiple base stations distributed across a geographic area that each transmit location corrections stream to the processing server, which combines them to a composite corrections stream and transmits it to television stations for further broadcasting. A receiving device within a coverage area of a television station receives the composite corrections stream, selects a corrections stream corresponding to a base station closest to the receiving device, and uses the selected corrections stream to correct the location determined using satellite data.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: December 5, 2023
    Assignee: SPECTRUM CO, LLC
    Inventor: John Hane
  • Patent number: 11830745
    Abstract: Embodiments of the present disclosure include a semiconductor device and methods of forming a semiconductor device. An embodiment is a semiconductor device comprising an interconnecting structure consisting of a plurality of thin film layers and a plurality of metal layers disposed therein, each of the plurality of metal layers having substantially a same top surface area, and a die comprising an active surface and a backside surface opposite the active surface, the active surface being directly coupled to a first side of the interconnecting structure. The semiconductor device further comprises a first connector directly coupled to a second side of the interconnecting structure, the second side being opposite the first side.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: November 28, 2023
    Inventors: Tzu-Wei Chiu, Cheng-Hsien Hsieh, Hsien-Pin Hu, Kuo-Ching Hsu, Shang-Yun Hou, Shin-Puu Jeng