Patents Examined by Bo Fan
  • Patent number: 10838075
    Abstract: A global navigation satellite system (GNSS) receiver including a sequential chip mixed frequency correlator array system (SCMFCAS) is provided. The SCMFCAS includes P signal generators, each receiving N samples of intermediate frequency (IF) data of a GNSS signal. Each signal generator includes a primary mixer, a pseudo random noise code generator, and Q mixed frequency correlators (MFCs). Each MFC generates accumulated correlation components of the N samples of the IF data by processing the N samples of the IF data. Adders and subtractors operably connected to the SCMFCAS are time division multiplexed for generating correlation values of a positive frequency and a negative frequency of the N samples of the IF data by combining the accumulated correlation components. Time division multiplexing the adders and the subtractors across the SCMFCAS and generation of the correlation values reduce logic area of the SCMFCAS, thereby reducing power consumption of the GNSS receiver.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: November 17, 2020
    Assignee: ACCORD IDEATION PRIVATE LIMITED
    Inventors: Gowdayyanadoddi Shivaiah Naveen, Smitha Shrinivasa Nayak, Varsha Bhupal Bavache
  • Patent number: 10838040
    Abstract: Techniques are disclosed for detection and ranging systems and methods to improve range resolution, target separation, and reliability. A method includes selectively attenuating a signal representing a ranging system return or echo from targets so as to suppress side lobes or other undesirable artifacts appearing in the signal due to noise, interference, and/or distortion. A method may additionally or alternatively include rejecting interference events in ranging system returns by comparing a received return with that expected from a target illuminated by the ranging system, as determined by characteristics of its particular ranging sensor, and rejecting or attenuating returns or portions of returns that fail to match those characteristics in time or space.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: November 17, 2020
    Assignee: FLIR BELGIUM BVBA
    Inventors: Richard Jales, Nicholas St. Hill, Stephen Tostevin
  • Patent number: 10838057
    Abstract: A Doppler radar system includes a Doppler radar processor, a memory in communication with radar processor and a transmit/receive controller. The memory includes computer readable instructions that cause the Doppler radar processor to transmit a radar signal toward the airborne object at a frequency; receive reflected radar signals off of the airborne object, including frequencies produced as a result of Doppler effect due to relative motion between features of the airborne object and the radar system; and Fourier transform the received signals into the frequency domain. Peak frequencies and their harmonic frequency families are sorted and identified. The logarithm of the Fourier transform is calculated to generate a quefrency cepstrum. To identify features producing cyclic, periodic Doppler frequency patterns, peak quefrencies and rahmonic families associated with a quefrency peak are sorted and identified. The rotational state of the airborne object based on the identified quefrency families is determined.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: November 17, 2020
    Assignee: Lockheed Martin Corporation
    Inventors: Tod M. Schuck, David B. Reese, Mark A. Friesel
  • Patent number: 10833190
    Abstract: Embodiments are directed to methods and resulting structures for a vertical field effect transistor (VFET) having a super long channel. A pair of semiconductor fins is formed on a substrate. A semiconductor pillar is formed between the semiconductor fins on the substrate. A region that extends under all of the semiconductor fins and under part of the semiconductor pillar is doped. A conductive gate is formed over a channel region of the semiconductor fins and the semiconductor pillar. A surface of the semiconductor pillar serves as an extended channel region when the gate is active.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: November 10, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Marc A. Bergendahl, Kangguo Cheng, Gauri Karve, Fee Li Lie, Eric R. Miller, John R. Sporre, Sean Teehan
  • Patent number: 10823837
    Abstract: A method for vehicle location estimation using orthogonal frequency-division multiplexing (OFDM) is provided with an OFDM device that consists of a wireless terminal and a multiple-input and multiple-output (MIMO) antenna. A pilot uplink signal is transmitted towards from the wireless terminal towards the intended target which is within an operational range of the MIMO antenna. Upon contacting the intended target and a plurality of target-surrounding objects, a plurality of return signals is generated to be received by the wireless terminal. A plurality of echo signals that was reflected from the plurality of target-surrounding objects is separated so that a time delay between the pilot uplink signal and the plurality of echo signals can be determined. The time delay along with a direction of arrival determined through the MIMO antenna are used to derive a location approximation for the intended target.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: November 3, 2020
    Assignee: THE EUCLIDE 2012 INVESTMENT TRUST
    Inventor: Tiejun Shan
  • Patent number: 10826028
    Abstract: The present invention provides a manufacture method of a flexible display panel, and after forming grooves on the rigid substrate, and forming the flexible supporting bases in the grooves, and manufacturing the display element layer on the flexible supporting bases and the rigid substrate, the flexible display mother board is obtained. Then, the normal knife flywheel is used to cut the flexible display mother board along the edges of the grooves to obtain the flexible substrate units. After stripping the rigid substrates in the flexible substrate units with laser, the flexible display substrates are obtained. The method saves the purchase cost of the laser cutting apparatus, and thus to reduce the manufacture cost of the flexible display substrate, and meanwhile, to raise the cutting yield of cutting the flexible display mother board with the normal knife flywheel for promoting the usage lifetime of the knife flywheel.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: November 3, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Fang Qin
  • Patent number: 10827341
    Abstract: A method of environmental sensing through pilot signals in a spread spectrum wireless communication system is provided with a plurality of wireless terminals. The plurality of wireless terminals includes a plurality of multi-input multi-output (MIMO) radars and at least one base station. The plurality of terminals broadcasts a beacon pilot signals containing a terminal-specific information and encoded with a corresponding identifier. Using the corresponding identifier, an arbitrary radar from the plurality of MIMO radars separates the beacon pilot signal from an ambient signal. More specifically, the arbitrary radar compares the ambient signal to the corresponding identifier of each wireless terminal to identify at least one origin terminal. Subsequently, the arbitrary radar extracts the terminal-specific information from the beacon pilot signal of the origin terminal. The terminal-specific information is used to exchange data between the plurality of wireless terminals for autonomous driving.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: November 3, 2020
    Assignee: THE EUCLIDE 2012 INVESTMENT TRUST
    Inventor: Tiejun Shan
  • Patent number: 10823822
    Abstract: A system in accordance with one aspect mitigates interference with PtPRs (Point to Point Receivers) that may be caused by a Wi-Fi base station or terminal devices associated with the Wi-Fi base station.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: November 3, 2020
    Assignee: HIGHER GROUND LLC
    Inventors: Robert Reis, Shmuel Shaffer
  • Patent number: 10823820
    Abstract: An information acquiring unit for acquiring direction information indicating the direction in which a target is to be searched for and observation accuracy information indicating the observation accuracy in the direction, and a beam arrangement determining unit for determining an arrangement of beams to be emitted by an antenna from the direction information and the observation accuracy information acquired by the information acquiring unit are provided, and a beam controlling unit controls the directions of the beams to be emitted by the antenna in accordance with the arrangement of beams determined by the beam arrangement determining unit.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: November 3, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tetsutaro Yamada, Tetsuji Harada, Yasushi Obata
  • Patent number: 10816384
    Abstract: A method of determining at least a first interface level of a first interface in a tank containing a stratified substance composition, comprising the steps of generating and transmitting an electromagnetic transmit signal; guiding the transmit signal at least partly through the stratified substance composition; returning an electromagnetic reflection signal resulting from reflection of the transmit signal; receiving, the reflection signal; determining, based on the reflection signal and a timing relation between the reflection signal and the transmit signal, an echo signal exhibiting an echo signal strength as a function of a propagation parameter indicative of position along the probe; and determining, the first interface level based on a first propagation parameter value indicative of a first threshold position for which the echo signal has reached a predetermined first threshold signal strength, and a first offset indicative of a first offset distance from the first threshold position.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: October 27, 2020
    Assignee: ROSEMOUNT TANK RADAR AB
    Inventors: Christer Frövik, Anders Friedmann
  • Patent number: 10809373
    Abstract: A method for forming 3D image data representative of the subsurface of infrastructure located in the vicinity of a moving vehicle. The method includes: rotating a directional antenna, mounted to the moving vehicle, about an antenna rotation axis; performing, using the directional antenna whilst it is rotated about the antenna rotation axis, a plurality of collection cycles in which the directional antenna emits RF energy and receives reflected RF energy; collecting, during each of the plurality of collection cycles performed by the directional antenna.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: October 20, 2020
    Assignee: PBU (UK) LTD.
    Inventors: Anthony Gallagher, Alexander Robinson
  • Patent number: 10805022
    Abstract: A method for location approximation through time-domain subspace signals and spatial domain subspace signals is provided with an orthogonal frequency-division multiplexing (OFDM)-based wireless device that includes a wireless terminal, a multiple-input and multiple-output (MIMO) antenna, a spatial subspace processor, and a temporal subspace processor. An uplink signal is transmitted from the wireless terminal towards a plurality of targets positioned within an operational range of the MIMO antenna. A plurality of reflected signals generated from the plurality of targets and is received through the MIMO antenna. The plurality of reflected signals is processed at the spatial subspace processor to determine a direction of arrival (DOA) for each of plurality of reflected signals. Each of the plurality of reflected signals is processed by the temporal subspace processor to determine a time delay. The time delay and the DOA are utilized to derive a location approximation for the plurality of targets.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: October 13, 2020
    Assignee: THE EUCLIDE 2012 INVESTMENT TRUST
    Inventor: Tiejun Shan
  • Patent number: 10794995
    Abstract: The present disclosure provides a system and method for a vehicle radar inspection. A system for inspecting an assembled state of a radar sensor mounted in a vehicle may include a center portion configured to align the vehicle to a reference inspection position; a mobile terminal configured to connect with an external source of communication; a scan portion configured to photograph the radar sensor at a plurality of scan positions using a terahertz wave; and a server configured to match a plurality of scan images photographed by the scan portion, to detect a three-dimensional coordinate of the radar sensor, to transmit a sensor correction value through the mobile terminal, wherein the sensor correction value is determined based on an assembly tolerance that compares with a design plan of the vehicle, and to correct a sensor angle value of the radar sensor.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: October 6, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jihoon Park, Haseung Seong
  • Patent number: 10795014
    Abstract: A method of adaptative-array beamforming with a multi-input multi-output (MIMO) automobile radar includes a MIMO radar for transmitting a plurality of initial scanning beams in a radial direction. The plurality of initial scanning beams is transmitted one by one at each direction. Accordingly, the MIMO radar receives a reflected scanning beam, wherein each reflected scanning beam is associated with a corresponding initial scanning beam. The reflected scanning beam is used to detect at least one low-resolution target. Subsequently, the MIMO radar transmits a plurality of initial tracking beams, wherein each initial tracking beams is directed towards a low-resolution target. This results in generation of a corresponding reflected tracking beam for each of the plurality of initial tracking beams. Finally, the MIMO radar detects at least one high-resolution target within each reflected tracking beam.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: October 6, 2020
    Assignee: THE EUCLIDE 2012 INVESTMENT TRUST
    Inventor: Tiejun Shan
  • Patent number: 10794988
    Abstract: A method of implementing spread spectrum techniques in an automotive radar with wireless communication capabilities enables an anti-jammer radar capable of overcoming channel noise. The method is provided with a MIMO radar and at least one base station. The MIMO radar transmits the initial uplink signal and receives an ambient signal containing a reflected uplink signal and the downlink signal. The initial uplink signal is encrypted to overcome channel noise and jamming signals. The downlink signal is used to establish wireless communication between the base station and the MIMO radar. As such, the downlink signal is filtered and processed from the ambient signal. Similarly, the reflected downlink signal is also filtered from the ambient signal. Finally, the MIMO radar decrypts the reflected uplink signal to detect a plurality of targets and derive spatial positioning data for each target.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: October 6, 2020
    Assignee: THE EUCLIDE 2012 INVESTMENT TRUST
    Inventor: Tiejun Shan
  • Patent number: 10794989
    Abstract: A method for target location approximation using orthogonal frequency-division multiplexing (OFDM) is provided with an OFDM device that consists of a wireless terminal and a multiple-input and multiple-output (MIMO) antenna. In order to derive a location approximation, a pilot uplink signal is transmitted through the wireless terminal towards at least one intended target. The pilot uplink signal that is transmitted is encoded as a direct-sequence spread spectrum (DSSS). Next, a reflected-pilot uplink signal is identified from an ambient signal that returns after the initial transmission. The reflected-pilot uplink signal is decoded to retrieve the original data embedded in the pilot uplink signal. A matching time delay is calculated between the pilot uplink signal and the reflected-pilot uplink signal. A direction of arrival (DOA) is determined from the MIMO antenna. Finally, the matching time delay and the DOA are used for location approximation.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: October 6, 2020
    Assignee: THE EUCLIDE 2012 INVESTMENT TRUST
    Inventor: Tiejun Shan
  • Patent number: 10797271
    Abstract: A manufacturing method for OLED display panel is disclosed, which first performs patterning on the encapsulation colloid of the encapsulant to divide encapsulation colloid into a plurality of target encapsulation areas, with each target encapsulation area corresponding to each OLED substrate unit, and a gap area outside of target encapsulation areas, performing disintegration treatment from the other side of encapsulation colloid on a portion of encapsulation colloid belonging to gap area so that the surface losing adhesiveness, then attaches encapsulation colloid to OLED substrate, and finally, obtains a plurality of OLED display panels by cutting. This method is simple to perform, reduces the size compatibility requirement of the laminator and avoids the use of extra manipulator and carrier fixture, which reduces the product cost incurred by fixture cleaning, transport, storage and other complex operations, and improves the product of the alignment accuracy, is good for automated production.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: October 6, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Weijing Zeng
  • Patent number: 10788323
    Abstract: A surveying instrument for providing a referencing marker designed to allow Augmented Reality (AR)-device to reference their pose relative to the reference system. The invention further relates to an AR-system comprising said surveying instrument and an AR-device. The invention further relates to a method for referencing an AR-device relative to a reference system by means of said surveying instrument.
    Type: Grant
    Filed: October 22, 2017
    Date of Patent: September 29, 2020
    Assignee: HEXAGON TECHNOLOGY CENTER GMBH
    Inventor: Julien Singer
  • Patent number: 10775479
    Abstract: A vehicle, radar system of the vehicle and method of operating a radar system. The radar system includes a first sensor that generates a first chirp signal; a second sensor for generating a second chirp signal and which received reflected signals. One of the first sensor and second sensor receives a signal that includes a first reflected signal related to the first chirp signal and a second reflected signal related to the second chirp signal. A processor multiplies the received signal by one of the first chirp signal and the second chirp signal to obtain a desired signal indicative of one of the first reflected signal and the second reflected signal and an interference signal indicative of the other of the first reflected signal and the second reflected signal, and applies a filter to the mixed signal to separate the interference signal from the desired signal.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: September 15, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Amnon Jonas, Oded Bialer
  • Patent number: 10775510
    Abstract: A method, system and apparatus are claimed for receiving, blindly despreading, and determining geo-observables, of true civil Global Navigation Satellite Systems (GNSS) navigation signals generated by any of the set of satellite vehicles and ground beacons, amongst false echoes and malicious GNSS signals from spoofers and repeaters; for identifying malicious GNSS signals, and preventing those signals from corrupting or capturing Positioning, Navigation, and Timing tracking operations; and for geolocating malicious GNSS signals. The invention also provides time-to-first-fix over much smaller time intervals than existing GNSS methods and can operate both in the presence of signals with much wider disparity in received power than existing techniques, and in the presence of arbitrary multipath.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: September 15, 2020
    Inventor: Brian G. Agee