Determining Velocity Patents (Class 342/104)
  • Patent number: 10893811
    Abstract: An apparatus, system, and method is disclosed for monitoring the motion, breathing, heart rate of humans in a convenient and low-cost fashion, and for deriving and displaying useful measurements of cardiorespiratory performance from the measured signals. The motion, breathing, and heart rate signals are obtained through a processing applied to a raw signal obtained in a non-contact fashion, typically using a radio-frequency sensor. Processing into separate cardiac and respiratory components is described. The heart rate can be determined by using either spectral or time-domain processing. The respiratory rate can be calculated using spectral analysis. Processing to derive the heart rate, respiratory sinus arrhythmia, or a ventilatory threshold parameter using the system is described. The sensor, processing, and display can be incorporated in a single device which can be worn or held close to the body while exercising (e.g.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: January 19, 2021
    Inventors: Philip De Chazal, Conor Hanley, Conor Heneghan
  • Patent number: 10890466
    Abstract: A rotating element is mounted in a base body for rotation about an axis of rotation. An excitation circuit generates an excitation signal. A divider circuit divides the excitation signal into a base signal supplied to an evaluation circuit and into an outgoing signal supplied to a transceiving antenna. A waveguide circulates in an annular manner about the axis of rotation. The rotating element comprises a termination element protruding into the waveguide and has a reflective side. The transceiving antenna emits an electromagnetic signal into the waveguide propagating in two directions which is reflected from the reflective side and returned to and received by the transceiving antenna which generates in response a receiving signal supplied to the evaluation circuit which determines a position of rotation of the rotating element in relation to a reference position of rotation by evaluating the base signal and receiving signal in a resolution region.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: January 12, 2021
    Inventors: Martin Meyer, Jürgen Zettner
  • Patent number: 10823846
    Abstract: In an object detection method, a moving speed v0 of a radar device and an angle ?1 defined between a moving direction of the radar device and a reception direction of a radar wave reflected on a target are acquired, a first function which expresses a relative speed v1 between the radar device and the target by the speed v0 and the angle ?1 in a non-multipath environment model and a second function which expresses the speed v1 in a multipath environment model are formed, an actual relative speed between the radar device and the target is calculated from a reception signal of the radar wave by using the multipath environment model, and it is determined that the reception signal is derived from a stationary object when a point defined by the ?1 and the actual relative speed is positioned between the first function and the second function.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: November 3, 2020
    Assignee: Mitsumi Electric Co., Ltd.
    Inventor: Yuji Takada
  • Patent number: 10775482
    Abstract: A method for human detection includes: receiving first and second echo signals using a millimeter-wave radar to produce first and second sets of data, respectively; selecting first and second angles based on the first and second sets of data, respectively; performing a FrFT on the first set of data using the first angle; identifying first targets by comparing peaks of the FrFT of the first set of data with a first threshold; performing a FrFT on the second set of data using the second angle; identifying second targets by comparing peaks of the FrFT of the second set of data with the first threshold; generating a set of target tracks based on the identified first and second targets; and associating a target track with a human track based on comparing each target track of the set of target tracks with a set of reference track signatures.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: September 15, 2020
    Inventors: Avik Santra, Ashutosh Baheti, Jagjit Singh Bal
  • Patent number: 10768297
    Abstract: A traffic radar system comprises a first radar transceiver assembly, a second radar transceiver assembly, a display, and a processing element. The first radar transceiver assembly transmits and receives radar beams and generates a first electronic signal corresponding to the received radar beam. The second radar transceiver assembly transmits and receives radar beams and generates a second electronic signal corresponding to the received radar beam. The display displays a plurality of speeds, each speed being a speed of a target vehicle. The processing element is configured to receive the first and second electronic signals, process the first electronic signal to determine speeds of target vehicles in the front zone, process the second electronic signal to determine speeds of target vehicles in the rear zone, and control the display to display the speeds of target vehicles in the front zone or target vehicles in the rear zone based on predetermined parameters.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: September 8, 2020
    Assignee: Kustom Signals, Inc.
    Inventors: Maurice Shelton, Mike Bietsch, Michael Paulson
  • Patent number: 10729332
    Abstract: An apparatus, system, and method monitors the motion, breathing, heart rate and sleep state of subjects, e.g., humans, in a convenient, non-invasive/non-contact, and low-cost fashion. More particularly, the motion, breathing, and heart rate signals are obtained through processing applied to a raw signal obtained in a non-contact fashion, typically using a radio-frequency sensor. Periods of sleep disturbed respiration, or central apnea can be detected through analysis of the respiratory signal. The mean heart rate, and derived information, such as the presence of cardiac arrhythmias can be determined from the cardiac signal. Motion estimates can be used to recognize disturbed sleep and periodic limb movements. The sleep state may be determined by applying a classifier model to the resulting streams of respiratory, cardiac and motion data. A means for display of the sleep state, respiratory, cardiac, and movement status may also be provided.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: August 4, 2020
    Assignee: ResMed Sensor Technologies Limited
    Inventors: Conor Heneghan, Conor Hanley, Niall Fox, Philip De Chazal
  • Patent number: 10728365
    Abstract: The invention relates to a process for searching for a place on the basis of a free request of parameters defined by a user on a peripheral unit connected to a central unit, remarkable in that it comprises the following steps: a step of selecting and grouping types of parameters, spatial cutting of the earth's surface into surface cells, with said cells being associated with a plurality of sensors, associating data with a type of parameters and with a surface cell in order to obtain data sub-sets, processing and storing the data sub-sets, constituting the free request, analyzing the language and the interpretation of the free request, searching for and selecting surface cells associated with the sorted and selected data, displaying the place corresponding to the surface cells found. The invention also relates to a device implementing said process. Uses: Expediting the search for places.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: July 28, 2020
    Inventor: Morou Boukari
  • Patent number: 10718870
    Abstract: Determination of one or more timing (phase) and/or frequency corrections to be made to a local time base of a receiver device to synchronize the local time base with the time of GPS or other highly accurate time base. Timing packets from one or more grandmaster devices whose time bases are substantially the same as that of GPS or the like and/or positioning system signals (e.g., GPS signals) directly from a positioning system are received and manipulated to determine the timing and/or frequency corrections. The corrected time base may be used to assist in acquiring such positioning signals to allow for higher accuracy correction and/or for downstream communication operation. The present utilities are advantageous such as when a sufficient number of channels (e.g., four) from the receiver device to positioning system satellites are unavailable to synchronize the local time base to the GPS or other accurate time base.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: July 21, 2020
    Assignee: iPosi, Inc.
    Inventors: Eric Derbez, Christopher Neil Kurby, Derek Glass
  • Patent number: 10705105
    Abstract: A system determines absolute speed of a moving object. In AM, time of flight data over a time period is processed to determine ranges between the system and the moving object. The system performs linear regression analysis on the collected ranges to calculate the radial velocity. The system measures angular swivel rate of the system to determine tangential velocity. From the radial velocity and tangential velocity, the absolute speed can be calculated by taking the square root of the addition of the square of the radial velocity and square of the tangential velocity. In MM, the system calculates object distance, i.e. distance in the direction of travel, by subtracting the square of a pre-determined perpendicular distance L, perpendicular to the direction of travel, from a square of line-of-sight distance R, and taking square root of the result. Absolute speed is determined by calculating the slope of modified linear regression curve-fit.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: July 7, 2020
    Inventors: Mahendra Mandava, Robert S. Gammenthaler, Russell D. Kautz, Steven F. Hocker, Robert E. Jordan, Devin L. Kautz
  • Patent number: 10679341
    Abstract: A soil imaging system having a work layer sensor disposed on an agricultural implement to generate an electromagnetic field through a soil area of interest as the agricultural implement traverses a field. A monitor in communication with the work layer sensor is adapted to generate a work layer image of the soil layer of interest based on the generated electromagnetic field. The work layer sensor may also generate a reference image by generating an electromagnetic field through undisturbed soil. The monitor may compare at least one characteristic of the reference image with at least one characteristic of the work layer image to generate a characterized image of the work layer of interest. The monitor may display operator feedback and may effect operational control of the agricultural implement based on the characterized image.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: June 9, 2020
    Inventors: Michael Strnad, Roger Koch, Dale Koch
  • Patent number: 10681568
    Abstract: Fiber, cable, and wireless data channels are typically impaired by reflectors and other imperfections, producing a channel state with echoes and frequency shifts in data waveforms. Here, methods of using pilot symbol waveform bursts to automatically produce a detailed 2D model of the channel state are presented. This 2D channel state can then be used to optimize data transmission. For wireless data channels, an even more detailed 2D model of channel state can be produced by using polarization and multiple antennas in the process. Once 2D channel states are known, the system turns imperfect data channels from a liability to an advantage by using channel imperfections to boost data transmission rates. The methods can be used to improve legacy data transmission modes in multiple types of media, and are particularly useful for producing new types of robust and high capacity wireless communications using non-legacy data transmission methods as well.
    Type: Grant
    Filed: July 21, 2018
    Date of Patent: June 9, 2020
    Assignee: Cohere Technologies, Inc.
    Inventors: Ronny Hadani, Shlomo Selim Rakib
  • Patent number: 10680305
    Abstract: A signal handling device includes a first substrate. A plurality of first conductors in the first substrate are arranged to form a substrate integrated waveguide. A second substrate includes a plurality of second conductors arranged to form a resonating cavity near one end of the substrate integrated waveguide. A signal carrier is aligned with the one end of the substrate integrated waveguide.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: June 9, 2020
    Assignee: Aptiv Technologies Limited
    Inventors: Alireza Foroozesh, George J. Purden, Shawn Shi
  • Patent number: 10667148
    Abstract: Computerized wireless transmitter/receiver system that automatically uses combinations of various methods, including transmitting data symbols by weighing or modulating a family of time shifted and frequency shifted waveforms bursts, pilot symbol methods, error detection methods, MIMO methods, and other methods, to automatically determine the structure of a data channel, and automatically compensate for signal distortions caused by various structural aspects of the data channel, as well as changes in channel structure. Often the data channel is a two or three dimensional space in which various wireless transmitters, receivers and signal reflectors are moving. The invention's modulation methods detect locations and speeds of various reflectors and other channel impairments. Error detection schemes, variation of modulation methods, and MIMO techniques further detect and compensate for impairments.
    Type: Grant
    Filed: July 21, 2018
    Date of Patent: May 26, 2020
    Assignee: Cohere Technologies, Inc.
    Inventors: Shlomo Selim Rakib, Ronny Hadani
  • Patent number: 10634782
    Abstract: An extravisual obstacle detecting system includes: a radio wave receiving unit 15 configured to receives a radio wave from a radio wave source 13 attached to an object 11; one or a plurality of external sensors 19 attached to the vehicle 17 and configured to detect an external obstacle; an alarm generating unit 21 configured to generate a predetermined alarm, and, when the radio wave receiving unit 15 receives the radio wave from the object 11, and the external sensors 19 do not detect the object 11, the alarm generating unit 21 generates the first alarm.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: April 28, 2020
    Assignees: Waseda University, Optoquest Co., Ltd
    Inventors: Tetsuya Kawanishi, Masaru Fukumitsu
  • Patent number: 10577925
    Abstract: Ground penetrating radar (GPR) measurements from a downhole well tool in a wellbore are obtained to identify length of fractures adjacent the wellbore. A ground penetrating radar transmitter of the downhole tool emits an electromagnetic pulse. The electromagnetic wave of the ground penetrating radar is diffracted on encountering an end or tip of a fracture, which acts as a secondary source. The diffracted signal is then collected by downhole receiver(s) of the downhole tool. Length of the fracture is determined based on the time of travel of the electromagnetic wave from its emission until its collection as a diffracted signal by the downhole receiver(s).
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: March 3, 2020
    Assignee: Saudi Arabian Oil Company
    Inventors: Jesus Manuel Felix Servin, Erika Shoemaker Ellis, Ersan Turkoglu, Howard Khan Schmidt
  • Patent number: 10562551
    Abstract: In a ground apparatus system, polling communication where a ground apparatus serves as a primary station and a train serves as a secondary station is performed. A ground apparatus that is a ground apparatus of the ground apparatus system and is capable of communicating with a platform screen door control apparatus performs polling communication at a first communication frequency to obtain train location information from the train. When the train reaches an impending arrival range including a stop position at a station, the ground apparatus switches the communication frequency to a second communication frequency higher than the first communication frequency. The apparatus then transmits, to the train through polling communication, synchronized opening and closing control instruction information received from the platform screen door control apparatus, and transmits, to the platform screen door control apparatus, train state information obtained from the train through polling communication.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: February 18, 2020
    Inventors: Kenji Mizuno, Tamotsu Yokoyama, Tomonori Itagaki, Toshifumi Nishi
  • Patent number: 10481252
    Abstract: A sensor device includes a radio wave sensor and a signal processor. The signal processor includes an identifier and a noise remover configured to remove, from a second sensor signal, at least one frequency component determined as a noise component by the identifier. The identifier compares a signal intensity of each of the frequency components with one or more signal intensities of other frequency components. When a signal intensity of a first frequency component is greater than signal intensities of one or more second frequency components located in the vicinity of the first frequency component by an extent exceeding a threshold range, the identifier determines the first frequency component as the noise component.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: November 19, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tatsuo Masuda, Tadashi Murakami, Shigeo Gotoh
  • Patent number: 10481244
    Abstract: The invention relates to a method for classifying an object (18) in a surrounding area (4) of a motor vehicle (1), having the steps of: a) transmission of radar signals (5) into the surrounding area (4) by at least one motor vehicle radar sensor (3) and reception of radar signals (6) reflected from the object (18), b) provision of the information obtained from the radar signals (5, 6) as radar data, c) production of a power spectrum (11) on the basis of at least one distance value (13) and/or speed value (14) and/or intensity value (12) that the radar data contain as information, d) comparison of at least one spectrum range (15) that the power spectrum (11) contains with an intensity threshold value and selection of the spectrum range (15) as a potential object (16) if the intensity (12) thereof is greater than the intensity threshold value, e) performance of a further cycle with steps a) to d), f) identification of the potential object (16) as an actual object (18) on the basis of whether the potential obje
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: November 19, 2019
    Assignee: Valeo Schalter und Sensoren GmbH
    Inventor: Waqas Malik
  • Patent number: 10460582
    Abstract: A computer-implemented method for detecting a person in a room using a sensor, such as a radar sensor or depth cameras is provided. The method can be used to detect sleeping persons in a publically accessible location to prevent loitering. Furthermore, the method can be used to identify which rooms amongst a plurality of rooms are occupied, for example changing rooms.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: October 29, 2019
    Inventors: Peter Anderholm, Yanyan Hu, Kevin Piette, Pietro Russo, Bo Yang Yu
  • Patent number: 10444350
    Abstract: An obstacle monitoring system includes a first transducer that obtains a first distance measurement to an obstacle using a first linear frequency modulated (“LFM”) chirp. The system further includes a second transducer, able to operate concurrently with the first transducer, that obtains a second distance measurement to the obstacle using a second LFM chirp. The second LFM chirp has an inverted slope or shifted center frequency compared to the first LFM chirp. The system further includes a controller that processes the first and second distance measurements to determine a motion-compensated distance measurement to the obstacle.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: October 15, 2019
    Inventors: Marek Hustava, Tomas Suchy, Miroslav Kassa
  • Patent number: 10417570
    Abstract: Systems and methods for probabilistic semantic sensing in a sensory network are disclosed. The system receives raw sensor data from a plurality of sensors and generates semantic data including sensed events. The system correlates the semantic data based on classifiers to generate aggregations of semantic data. Further, the system analyzes the aggregations of semantic data with a probabilistic engine to produce a corresponding plurality of derived events each of which includes a derived probability. The system generates a first derived event, including a first derived probability, that is generated based on a plurality of probabilities that respectively represent a confidence of an associated semantic datum to enable at least one application to perform a service based on the plurality of derived events.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: September 17, 2019
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Peter Raymond Florence, Christopher David Sachs, Kent W. Ryhorchuk
  • Patent number: 10390195
    Abstract: Disclosed is a method for transmitting and receiving an alarm in V2X communication so as to prevent waste of power and radio resources. The method for transmitting and receiving an alarm according to the present invention involves transmitting an alarm message containing the rating information of an actual event, prior to transmitting a message containing information of the event. On the basis of the rating, a receiving end can decide whether or not to receive a subsequent message, thereby saving power.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: August 20, 2019
    Inventors: Youngtae Kim, Hanbyul Seo, Hyukjin Chae, Hakseong Kim, Yunjung Yi
  • Patent number: 10386383
    Abstract: A waveguide arrangement for measuring the speed of a projectile during passage through a weapon barrel arrangement includes a main waveguide and at least one auxiliary waveguide. The main waveguide has a cross-section suitable for the passage of the projectile. The auxiliary waveguide extends adjacent to the main waveguide and is connected to the main waveguide via an opening. An isolator is arranged in the auxiliary waveguide. The waveguide arrangement is particularly suited for large-caliber ordinance and has at least one coupler extending at least partially in the isolator. The speed of the projectile in the main waveguide is measured at a frequency below the limiting frequency. The transmitting coupler is arranged at a spacing distance from the muzzle in order to prevent an exit of the generated signal from the weapon barrel arrangement.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: August 20, 2019
    Assignee: Rheinmetall Air Defence AG
    Inventor: Henry Roger Frick
  • Patent number: 10371810
    Abstract: An object detection device that detects an obstacle in an object by transmitting a signal by a transmission unit, and using reflection signals by a receiving unit, the device including: a sidewall detection circuit that determines whether the vehicle is running on a road having the sidewall, based on an azimuth angle of the object, a distance from the vehicle to the object, Doppler velocities of the reflection signals, and intensities of the reflection signals; a multiple reflection position detection circuit that detects multiple reflection wave components from the reflection signals, based on the Doppler velocities, the azimuth angle, and the reflection intensities when the road is determined to have the sidewall; a detection exclusion range setting circuit that removes the detected multiple reflection wave components from the reflection signals; and an object detection circuit that detects the object using the reflection signals with the multiple reflection wave components removed.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: August 6, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hiroshi Iwai, Hirofumi Nishimura, Asako Hamada
  • Patent number: 10367695
    Abstract: A method for simulating a communication system, and simulation system for a communication system and computer program, the communication system having a communication protocol which regulates a communication between at least two transmitter-receivers of the communication system via a common communication channel in such a way that a first transmitter-receiver transmits a data packet only when no use of the communication channel by a second transmitter-receiver is indicated to the first transmitter-receiver, includes sending a data packet by at least the first transmitter-receiver via the common communication channel even when at least the second transmitter-receiver is using the communication channel.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: July 30, 2019
    Assignee: VOLKSWAGEN AG
    Inventors: Burak Simsek, Hendrik-Jörn Günther
  • Patent number: 10346372
    Abstract: A method of processing data at a server 302 for maintenance of a database 516 of points of interest, such as speed limit enforcement devices. Each of the devices represented in the database has at least one attribute and a confidence value indicative of the accuracy of the at least one attribute associated therewith. The confidence value is time dependent and varies according to a predefined decay function. A report 500 relating to an attribute of a speed limit enforcement device is received at the server 302 from a mobile device 200. The confidence value associated with the speed limit enforcement device is adjusted in accordance with the received report, and information relating to the speed limit enforcement device 520, 522 is selectively transmitted to the or another mobile device 200 based on the confidence value.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: July 9, 2019
    Assignee: TOMTOM TRAFFIC B.V.
    Inventors: Antoine Carl van der Laan, Richard Hendrik Josephus Jonkman
  • Patent number: 10317521
    Abstract: The disclosed subject matter relates to Frequency Diversity Pulse Pair (FDPP) methods and technology implemented by, alternating the order of the pulse pair transmitted or order of the group of multiple pulses transmitted, the pulses differentiated based on the center frequency of each transmitted pulse. For example, where a pair of transmitted pulses have center frequencies f1 and f2, the pulses transmitted in pairs such that the first pair may be f1 followed by f2 and the second pair are a different order, such as f2 followed by f1.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: June 11, 2019
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Lihua Li, Matthew McLinden, Michael Coon, Gerald Heymsfield, Vijay Subbaraman Venkatesh
  • Patent number: 10310077
    Abstract: A system for use in a vehicle determining the type of terrain ahead of the vehicle, the system comprising; a processor configured to receive sensor output data from a plurality of vehicle-mounted sensors, including at least one radar sensor and at least one acoustic sensor, each for receiving a reflected signal from the terrain ahead of the vehicle; and a data memory configured to store pre-determined data relating sensor output data, for the or each acoustic sensor and the or each radar sensor, to a terrain type; wherein the processor is configured to compare the sensor output data with the pre-determined data to determine an indication of the terrain type corresponding to the sensor output data.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: June 4, 2019
    Inventors: Edward Hoare, Thuy-Yung Tran, Marina Gashinova, Aleksandr Bystrov, Mikhail Cherniakov
  • Patent number: 10204614
    Abstract: An apparatus comprising an audio detector configured to analyse a first audio signal to determine at least one audio source, wherein the first audio signal is generated from the sound-field in the environment of the apparatus; an audio generator configured to generate at least one further audio source; and a mixer configured to mix the at least one audio source and the at least one further audio source such that the at least one further audio source is associated with the at least one audio source.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: February 12, 2019
    Assignee: Nokia Technologies Oy
    Inventors: Kari Juhani Jarvinen, Antti Eronen, Juha Henrik Arrasvuori, Roope Olavi Jarvinen, Miikka Vilermo
  • Patent number: 10197665
    Abstract: A radar detector suppresses alerts from vehicle guidance systems, by sweeping for a consistent radar signal; the center frequency of the signal is stored and the detector suppresses warnings of radar signals near that frequency. The detector uses an enhanced method for suppression of signals near a known location of a false signal source; in the event the detector detects a radar signal and finds a matching stored false signal, the detector will first compare the strength of the received signal to a threshold strength that is computed based upon the distance of the detector from the stored false signal, and will only suppress signals below threshold. The detector includes a camera directed to the road in the vicinity of the vehicle. Image data from the camera is processed to identify police vehicles as identified by flashing lights, a profile including a rooftop light bar and/or highly contrasting colored panels.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: February 5, 2019
    Assignee: Escort Inc.
    Inventors: Steven K. Orr, John Kuhn, Jeff Stevens, Thomas W. Humphrey
  • Patent number: 10185029
    Abstract: Various embodiments that pertain to surface non-uniformity detection through use of radio waves are described. A vehicle can transmit radio waves to an area the vehicle is traveling to, such as a road in front of an automobile. The automobile can receive and process returned radio waves to determine if the road has a non-uniformity, such as a significant pothole or speed bump. If the road has the non-uniformity, then a driver of the automobile can be alerted so the driver can decide if evasive action should be taken and take such action if appropriate.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: January 22, 2019
    Assignee: The United States of America, as represented by the Secretary of the Army
    Inventor: John Suarez
  • Patent number: 10180495
    Abstract: The Fractional Fourier Transform (FrFT) may be used to extract multiple radar targets in clutter where some targets may be relatively weak. To do this, stronger targets may be removed by rotating to the proper axis ta using rotational parameter a, in which the target signal becomes a strong tone. By searching for the maximum peak over all values of a, stronger moving target echoes can be found and notched out, and weaker targets can then be extracted.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: January 15, 2019
    Assignee: The Aerospace Corporation
    Inventor: Seema Sud
  • Patent number: 10162051
    Abstract: A traffic radar system utilizes a standard USB interface of power and communication to a host USB device. Modules of the radar system communicate over a wireless network to reduce hard-wire cabling in the patrol vehicle or radar platform. Digital signal processing (DSP) is utilized in a distributed processing architecture to increase processing functionality and target detection capabilities. The system modules incorporate electrical and mechanical interfaces which allow modules to be connected together to form unique radar systems.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: December 25, 2018
    Assignee: Kustom Signals, Inc.
    Inventors: Maurice E. Shelton, Michael J. Bietsch, Kent F. Hayes
  • Patent number: 10162049
    Abstract: A method for operating a radar apparatus having transmitting antennas and at least one receiving antenna, including: generating transmission spectra by complex modulation of mutually equidistant orthogonal OFDM subcarriers; transforming the transmitted spectra into the time domain; digital/analog conversion, high-frequency modulation of the transmitted spectra, and simultaneous emission of the modulated transmitted spectra via the transmitting antennas; demodulating and digitizing a received signal; generating one received spectrum per transmitted spectrum, a division of the OFDM subcarriers corresponding to their division in the transmitted spectra being carried out; eliminating the transmitted signal forms of the transmitted spectra from the received spectra; generating one radar image per received spectrum; evaluating the radar images in a distance dimension and in a speed dimension; and carrying out a signal evaluation for the received signal.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: December 25, 2018
    Inventors: Gor Hakobyan, Siegbert Steinlechner
  • Patent number: 10126410
    Abstract: A method for identifying an elevation misalignment angle of a radar sensor of a vehicle, including: identifying elevation angles of radar object localizations with reference to a coordinate system of the radar sensor, an elevation angle of a radar object localization being respectively identified based on radar echoes that are obtained with at least two antenna directional characteristics that differ in an elevation direction; and identifying an elevation misalignment angle based on an occurrence frequency distribution of the elevation angles of at least some of the radar object localizations; and a radar sensor for vehicles having an evaluation device embodied to carry out the method.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: November 13, 2018
    Inventors: Andre Treptow, Dirk Bechler, Goetz Kuehnle, Volker Gross
  • Patent number: 10018711
    Abstract: A system uses range and Doppler velocity measurements from a lidar subsystem and images from a video subsystem to estimate a six degree-of-freedom trajectory of a target. The video subsystem and the lidar subsystem may be aligned with one another, and hence calibrated, by determining, for example, a centroid of an iris determined from the lidar subsystem and a centroid of the iris determined from the video subsystem and determining a calibration offset between the two centroids.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: July 10, 2018
    Assignee: StereoVision Imaging, Inc
    Inventors: Richard L. Sebastian, Anatoley T. Zheleznyak
  • Patent number: 9995167
    Abstract: A blade monitoring system and method for a turbine assembly comprising rotating blades (14), the system comprising at least one sensor (10, 12) for transmitting a signal towards said rotating blades and detecting a time-varying return signal therefrom, and one or more processors (20) configured to calculate the time derivative of said return signal, generate a phase variation signal for said time derivative, determine minima points within said phase variation signal and measure said signal at said minima points so as to identify data representative of respective minimum path lengths, each said minimum path length corresponding to the returned signal as each respective blade passes said sensor, and generate, using said minimum path lengths, a time series of data representing the returned signal from individual blades as they pass the sensor.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: June 12, 2018
    Assignee: BAE SYSTEMS PLC
    Inventor: David John Shepard
  • Patent number: 9958541
    Abstract: A radar device mounted in a moving object includes a radar transmitter and a radar receiver. The radar receiver includes a plurality of antenna brunch processors that perform correlation processing of the received returning signals and the radar transmission signal, and generate respective correlation signals each including arrival delay information of each of the received returning signals, an electric power profile generator that generates an electric power profiles for each arrival direction of the received returning signals and Doppler frequency component, using the generated correlation signals, and a stationary object group distribution generator that, based on the generated electric power profiles, obtains a first distribution of a Doppler frequency components of a stationary object group including a plurality of stationary objects as the plurality of targets in the perimeter of the moving object, for each azimuth angle.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: May 1, 2018
    Inventors: Takaaki Kishigami, Hirofumi Nishimura
  • Patent number: 9892358
    Abstract: A presently-powered RFID tag can itself determine its own relative movement with respect to a reader. This RFID tag can responsively alter its read state to thereby permit the RFID tag to respond to a subsequent read inquiry. By one approach the RFID tag assesses its own movement by monitoring the strength of its received power. By another approach, the RFID tag has a power source that becomes electrically charged via radio-frequency energy received by the tag antenna and that power source is configured to become operably discharged at a point in time that corresponds to a typical null-sensing duration of time for a given application setting for that RFID tag.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: February 13, 2018
    Assignee: Wal-Mart Stores, Inc.
    Inventor: Bruce W. Wilkinson
  • Patent number: 9869761
    Abstract: A radar apparatus includes a signal processor configured to: (i) in a case where a first angle peak signal closest to a prediction position in an up period and a second angle peak signal closest to the prediction position in a down period satisfy a pairing condition, finalize a combination of the first angle peak signal and the second angle peak signal as a pair data set; and (ii) in a case where the combination of the first angle peak signal and the second angle peak signal does not satisfy the pairing condition, where the plurality of angle peak signals exist in the prediction region in at least one of the up period and the down period and where a different combination from the combination of the first angle peak signal and the second angle peak signal satisfies a re-pairing condition, finalize the different combination as the pair data set.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: January 16, 2018
    Inventors: Keishi Yoshimura, Hiroyuki Ishimori
  • Patent number: 9819197
    Abstract: An interference control method of a power transmitting unit (PTU) includes determining whether the PTU is in an interference environment in which interference by a neighbor PTU occurs, and controlling a communication parameter of either one or both of the neighbor PTU and a power receiving unit (PRU) in response to a result of the determining being that the PTU is in the interference environment.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: November 14, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nam Yun Kim, Sang Wook Kwon, Ki Young Kim, Bong Chul Kim, Yun Kwon Park, Jae Hyun Park, Young Ho Ryu
  • Patent number: 9806914
    Abstract: A radar sensing system for a vehicle includes a transmitter, a receiver, and an interference mitigation processor. The transmitter transmits radio signals. The receiver receives radio signals. The received radio signals include reflected radio signals that are each transmitted radio signals reflected from objects in the environment. The receiver also down-converts and digitizes the received radio signals to produce a baseband sampled stream. The interference mitigation processor produces a second received radio signal that includes reflected radio signals that are transmitted radio signals reflected from a first object. The interference mitigation processor uses the second received radio signal to remove selected samples from the baseband sampled stream that are attributed to radio signals reflected from the first object to produce a modified baseband sampled stream. The receiver uses the modified baseband sampled stream to detect a second object more distant than the first object.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: October 31, 2017
    Assignee: UHNDER, INC.
    Inventors: Jean P. Bordes, Aria Eshraghi, David S. Trager, Murtaza Ali, Raghunath K. Rao
  • Patent number: 9778355
    Abstract: A signal processing method for a frequency-modulated continuous waveform (FMCW) radar system includes receiving a plurality of feedback signals from a plurality of targets and performing analog to digital conversion on the plurality of feedback signals to obtain a digital receiving signal corresponding to the plurality of feedback signals, performing a window function on the digital receiving signal to obtain a window transformation signal corresponding to the digital receiving signal, performing time-domain to frequency-domain conversion on the window transformation signal to obtain a spectrum signal of the window transformation signal, performing two beat frequency detections on the spectrum signal, and determining distances and speeds of the plurality of targets in comparison to the FMCW radar system according to results of the two beat frequency detections.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: October 3, 2017
    Assignee: Wistron NeWeb Corporation
    Inventors: Jeng-Da Li, Chi-Cheng Kuo, Cheng-Hsiung Hsu, Chi-Yung Liao, Chien-Chung Tseng
  • Patent number: 9759809
    Abstract: A system and method for state estimation of a surface of a platform at sea, includes receiving sensor signals indicative of LIDAR data for the platform; applying a Bayesian filter to the LIDAR data for a plurality of hypotheses; determining vertical planes representing azimuth and elevation angles for the LIDAR data; applying a robust linear estimation algorithm to the vertical planes; and determining candidate points in response to the applying of the robust linear estimation algorithm.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: September 12, 2017
    Inventors: Jason C. Derenick, Igor Cherepinsky, Christopher Stathis
  • Patent number: 9691282
    Abstract: A method for a driver assistance system for a vehicle is specified, wherein objects in the surroundings of a vehicle are detected on the basis of data of a system that covers the surroundings, and a potential free zone in which only no objects and/or objects which the vehicle can drive over have been reliably detected is determined. The potential free zone is verified by further vehicle and/or surroundings information.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: June 27, 2017
    Assignee: Continental Teves AG & Co. oHG
    Inventors: Andreas Hartmann, Ning Bian, Kai Bretzigheimer, Thorsten Staab, Daniel Förster
  • Patent number: 9689983
    Abstract: A radar receiver of a radar apparatus includes a Doppler frequency acquirer which, in operation, acquires a Doppler frequency for each of range bins from an echo signal, received via at least one antenna, which is a radar signal reflected by an object, a direction correlation power value calculator which, in operation, calculates, for each of combinations of the range bins and the Doppler frequencies, a direction correlation power value indicating strength of the echo signal for each of directions, a normalized direction correlation value calculator which, in operation, calculates, for each of the combinations of the range bins and the Doppler frequencies, a normalized direction correlation value indicating likelihood of a direction of arrival of the echo signal for each of the directions, and a running vehicle detector which, in operation, determines, on a basis of the direction correlation power value and the normalized direction correlation value, whether the object is a running vehicle.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: June 27, 2017
    Inventors: Yunyun Cao, Hirofumi Nishimura, Takaaki Kishigami
  • Patent number: 9689979
    Abstract: A radar apparatus using a pulse pair method to quickly measure a relative speed of an object. The radar apparatus includes: A data acquirer that acquires data relating to a pulse width, a repetition frequency, and a highest staggered ratio; A staggered pattern output unit that outputs a specific staggered pattern in which a total of phase changes within a sweep range of the target of the pulse pairing can be approximated to zero, wherein each phase change is caused by the pulse pairing on a target object at a constant speed due to a difference between an average transmission interval and a transmission interval between transmissions within the sweep range; And a setter that sets the transmission interval of a pulse signal by using the pulse width, the repetition frequency, the highest staggered ratio, and the specific staggered pattern.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: June 27, 2017
    Assignee: Furuno Electric Co., Ltd.
    Inventors: Koji Dai, Akira Okunishi
  • Patent number: 9664779
    Abstract: Methods and systems are provided for object classification for a radar system of a vehicle. The radar system includes a transmitter that transmits radar signals and a receiver that receives return radar signals after the transmitted radar signals are deflected from an object proximate the vehicle. A processor is coupled the receiver, and is configured to: obtain spectrogram data from a plurality of spectrograms pertaining to the object based on the received radar signals; aggregate the spectrogram data from each of the plurality of spectrograms into a computer vision model; and classify the object based on the aggregation of the spectrogram data from each of the plurality of spectrograms into the computer vision model.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: May 30, 2017
    Inventors: Inna Stainvas Olshansky, Igal Bilik
  • Patent number: 9642072
    Abstract: According to an embodiment of the disclosure, a mobile electronic device according to the present invention is provided with an acceleration sensor, a communication unitmodule, and a control unitmodule. The acceleration sensor detects acceleration. The communication unitmodule performs communication. The control unitmodule controls the communication unitmodule to search for a base station, in some cases.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: May 2, 2017
    Inventors: Katsuhiro Okamoto, Shigeki Tanabe, Hideki Morita, Shusaku Shinohara
  • Patent number: 9610961
    Abstract: A method for determining the speed of a vehicle is described. In this method, at least one object present in the environment of the vehicle is detected and a relative speed of the detected object in relation to the vehicle is measured. In addition, the speed of the vehicle is determined on the basis of the relative speed of the object.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: April 4, 2017
    Inventor: Holger Breuing