Patents by Inventor Yusuke Akamine

Yusuke Akamine has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11148595
    Abstract: An image output device outputs a periphery image of a vehicle to a display; acquires a capture image of the periphery; acquires detection information of the periphery; determines an accuracy factor of detection of each object; calculates a position of the object in the capture image; determines whether objects overlap with each other in the capture image; and sets an image transmission region to at least a part of a region displaying a first object disposed on a near side among the objects determined to overlap with each other in the capture image, generates the periphery image for visually confirming a second object disposed on a far side of the first object, and changes a transmittance defined in the image transmission region higher as the accuracy factor of the detection of the second object is higher.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: October 19, 2021
    Assignee: DENSO CORPORATION
    Inventors: Katsuhiko Kondo, Yusuke Akamine, Yasuyuki Miyake
  • Publication number: 20210239825
    Abstract: An object tracking apparatus generates a plurality of target candidates in which ambiguity in velocity is assumed for an object detected for a first time, calculates a current prediction value of a state quantity of each target candidate from a past estimation value of the state quantity of each target candidate, using one filter among a plurality of filters, and calculates the current estimation value of the state quantity of the target candidate from each of the calculated prediction values and a current observation value that matches each prediction value. The object tracking apparatus deletes the target candidate of which a determined likelihood is less than a preset threshold among the target candidates, and switches a used filter to a filter that has a larger number of state variables among the filters, in response to the target candidate being deleted and the total number of target candidates decreasing.
    Type: Application
    Filed: April 22, 2021
    Publication date: August 5, 2021
    Inventors: Yusuke AKAMINE, Takuya TAKAYAMA, Yasuyuki MIYAKE
  • Patent number: 11014518
    Abstract: An estimation device includes an information acquisition unit, a detection determination unit, a direction determination unit, and a direction estimation unit. When an object is a first-time detected object, the direction determination unit determines whether a relative direction acquired by the information acquisition unit is a direction toward an own vehicle. When the relative direction acquired by the information acquisition unit is a direction toward the own vehicle, the direction estimation unit estimates that a direction predetermined according to an object position acquired by the information acquisition unit is the movement direction of the object.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: May 25, 2021
    Assignees: SOKEN, INC., DENSO CORPORATION
    Inventors: Yusuke Akamine, Mitsuyasu Matsuura, Mai Sakamoto
  • Patent number: 11002850
    Abstract: A radar device includes a beat signal generation unit, a first signal processing unit, a second signal processing unit, and a speed determination unit. The first signal processing unit observes beat signals by performing a first number of observations during a first observation time and calculates a first speed from a time series of the beat signals of which number is equal to the first number of observations. The second signal processing unit observes the beat signals by performing a second number of observations during a second observation time and calculates a second speed from a time series of the beat signals of which number is equal to the second number of observations. The second observation time is longer than the first observation time. The time ratio is the ratio of the second observation time to the first observation time. The second number of observations is smaller than the first number of observations multiplied by the time ratio.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: May 11, 2021
    Assignee: DENSO CORPORATION
    Inventors: Yusuke Akamine, Yasuyuki Miyake
  • Patent number: 11002843
    Abstract: A dual-frequency CW processing unit (12) calculates an observation-point orientation of an observation point. An FMCW processing unit (11) calculates at least a power spectrum of a beat signal, which has been generated based on radar waves that have come from the calculated observation-point orientation, in terms of an up-modulation time interval and a down-modulation time interval (termed orientation power spectrum hereinafter). The FMCW processing unit (11) shifts the orientation power spectra of the up- and down-modulation time intervals to positive and negative directions, respectively, by an amount corresponding to a Doppler shift frequency. The FMCW processing unit (11) calculates a differential power spectrum by differentiating the orientation power spectra of the shifted up- and down-modulation time intervals, and detects a peak frequency where intensity is maximum.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: May 11, 2021
    Assignee: DENSO CORPORATION
    Inventors: Yusuke Akamine, Mitsuyasu Matsuura, Yasuyuki Miyake
  • Publication number: 20210133465
    Abstract: An intersecting road estimation device includes an object detection unit that detects an object existing around an own vehicle and a position of the object, an object extraction unit that extracts a stationary object and a position of the stationary object from an object detection result, a first estimation unit that estimates a road edge of a traveling road on which the own vehicle is traveling based on the position of the stationary object, a candidate extraction unit that extracts a stationary object existing outside the road edge of the traveling road estimated by the first estimation unit as a candidate for an outside stationary object representing a road edge of an intersecting road intersecting the traveling road, and a second estimation unit that estimates the road edge of the intersecting road based on a position of the outside stationary object extracted by the candidate extraction unit.
    Type: Application
    Filed: January 8, 2021
    Publication date: May 6, 2021
    Inventors: Yusuke AKAMINE, Katsuhiko KONDO, Yasuyuki MIYAKE
  • Patent number: 10914832
    Abstract: An estimation apparatus of the present disclosure includes a same-object point information acquiring section, a candidate estimating section, and a direction estimating section. The candidate estimating section estimates, as a candidate direction, a direction that is matched with an arbitrary horizontal direction upon determining that the relative speeds gradually decrease along the arbitrary horizontal direction. The candidate estimating section estimates, as the candidate direction, an opposite direction of the arbitrary horizontal direction upon determining that the relative speeds gradually increases along the arbitrary horizontal direction. The direction estimating section estimates a moving direction of the same object based on the candidate direction.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: February 9, 2021
    Assignee: DENSO CORPORATION
    Inventors: Yusuke Akamine, Yasuyuki Miyake
  • Publication number: 20210018588
    Abstract: A radar system is provided with a plurality of radar units. Each radar unit includes a first processing unit for calculating a distance and a relative speed to an object in the vicinity of each radar unit in accordance with a beat signal, a frequency band of the first modulated waves being a first frequency band, and a modulation period of the first modulated waves being a first modulation period; a second processing unit for calculating a distance to the object in accordance with a beat signal, a frequency band of the second modulated waves being a second frequency band, and a modulation period of the second modulated waves being a second modulation period; and a calculation result determination unit for determining the distance and the relative speed to the object in accordance with calculation results of the first and second processing units.
    Type: Application
    Filed: October 2, 2020
    Publication date: January 21, 2021
    Inventors: Yusuke Akamine, Takayuki Kitamura, Yasuyuki Miyake
  • Publication number: 20210003695
    Abstract: A radar apparatus is mountable to a vehicle. The radar apparatus includes an observing unit, an estimating unit, a predicting unit, a matching processing unit, and a determining unit. The estimating unit calculates, regarding an initial detection target object, a plurality of velocity estimation values in which folding is presumed, using a velocity observation value calculated by the observing unit. The predicting unit calculates a prediction value from each of the plurality of velocity estimation values. The matching processing unit performs association of the velocity prediction value and the velocity observation value.
    Type: Application
    Filed: September 21, 2020
    Publication date: January 7, 2021
    Inventors: Yusuke AKAMINE, Yasuyuki MIYAKE
  • Publication number: 20200346653
    Abstract: A vehicle radar system includes at least one radar, a detection section, an extraction section, a pair determination section, and a target position determination section. The extraction section extracts at least one observation point pair from a plurality of detected observation points. The observation point pair is a pair of the observation points located in the same direction. The target position determination section calculates a surface direction of a reflection surface from a reflection surface observation point of the observation point pair and observation points around the reflection surface observation point, and determines a position of the target from the calculated surface direction and the at least one observation point pair.
    Type: Application
    Filed: July 16, 2020
    Publication date: November 5, 2020
    Inventors: Katsuhiko KONDO, Yusuke AKAMINE, Yasuyuki MIYAKE
  • Publication number: 20200244840
    Abstract: A moving object recognition apparatus includes an object detection section, a position detection section, a road direction estimation section, and a moving direction estimation section. The object detection section detects a moving object that moves on a road around an own vehicle and a roadside object by the road, from objects present around the own vehicle. The position detection section detects positions of the moving object and the roadside object detected by the object detection section. The road direction estimation section estimates a road direction of the road on which the moving object is moving, based on the position of the roadside object detected by the position detection section. The moving direction estimation section estimates a moving direction of the moving object based on the road direction estimated by the road direction estimation section.
    Type: Application
    Filed: April 17, 2020
    Publication date: July 30, 2020
    Inventors: Yusuke AKAMINE, Yasuyuki MIYAKE
  • Publication number: 20200241131
    Abstract: An object detection apparatus detects a target object present in a periphery of a moving body. The object detection apparatus derives recognition information indicating a state of a target object, and predicts a state of the target object at a next second observation timing, based on the recognition information derived at a first observation timing. The object detection apparatus derives a score based on a degree of difference between a state of the target object observed at the second observation timing and a next state of the target object predicted at the first observation timing. The object detection apparatus derives a reliability level by statistically processing scores related to the target object derived at a plurality of observation timings from past to present. In response to the reliability level satisfying a predetermined reference, the object detection apparatus determines that the target object related to the reliability level is actually present.
    Type: Application
    Filed: April 17, 2020
    Publication date: July 30, 2020
    Inventors: Katsuhiko KONDO, Yusuke AKAMINE, Yasuyuki MIYAKE
  • Publication number: 20200189467
    Abstract: An image output device outputs a periphery image of a vehicle to a display; acquires a capture image of the periphery; acquires detection information of the periphery; determines an accuracy factor of detection of each object; calculates a position of the object in the capture image; determines whether objects overlap with each other in the capture image; and sets an image transmission region to at least a part of a region displaying a first object disposed on a near side among the objects determined to overlap with each other in the capture image, generates the periphery image for visually confirming a second object disposed on a far side of the first object, and changes a transmittance defined in the image transmission region higher as the accuracy factor of the detection of the second object is higher.
    Type: Application
    Filed: February 26, 2020
    Publication date: June 18, 2020
    Inventors: Katsuhiko KONDO, Yusuke AKAMINE, Yasuyuki MIYAKE
  • Publication number: 20200142058
    Abstract: A radar device includes a beat signal generation unit, a first signal processing unit, a second signal processing unit, and a speed determination unit. The first signal processing unit observes beat signals by performing a first number of observations during a first observation time and calculates a first speed from a time series of the beat signals of which number is equal to the first number of observations. The second signal processing unit observes the beat signals by performing a second number of observations during a second observation time and calculates a second speed from a time series of the beat signals of which number is equal to the second number of observations. The second observation time is longer than the first observation time. The time ratio is the ratio of the second observation time to the first observation time. The second number of observations is smaller than the first number of observations multiplied by the time ratio.
    Type: Application
    Filed: January 3, 2020
    Publication date: May 7, 2020
    Inventors: Yusuke AKAMINE, Yasuyuki MIYAKE
  • Publication number: 20200041638
    Abstract: A vehicle information providing apparatus (hereinafter, apparatus) repeatedly acquires observation point information. The apparatus calculates at least one position of the predicted point. When the observation point information is acquired, the apparatus extracts a predicted point that can be connected to the observation point from the calculated predicted points. The apparatus calculates the position of the current filtered point based on the position of the current observation point and the position of the latest predicted point. When the observation point information of a new object (an object having no latest predicted point connectable to the observation point) is acquired, the device sets initial vectors. The apparatus calculates the position of the predicted point at time instants succeeding the current time instant for each of the traveling directions indicated by the initial vectors.
    Type: Application
    Filed: October 3, 2017
    Publication date: February 6, 2020
    Inventors: Yusuke AKAMINE, Mitsuyasu MATSUURA, Yasuyuki MIYAKE
  • Publication number: 20200025905
    Abstract: An in-vehicle radar device includes a transmission section, a reception section, an analysis section, an extraction section, a speed calculation section, a distance calculation section, and a folding detection section. The folding detection section detects occurrence of erroneous calculation of a distance, when reflection intensity at a frequency peak obtained by the extraction section is smaller than a preset intensity threshold for a distance calculated by the distance calculation section and a frequency width in a frequency spectrum calculated by the analysis section is smaller than a preset width threshold.
    Type: Application
    Filed: September 27, 2019
    Publication date: January 23, 2020
    Inventors: Yusuke AKAMINE, Naoki KAWASAKI, Yasuyuki MIYAKE
  • Publication number: 20190377059
    Abstract: The radar device is provided with a transmission array antenna, phase shifters, a reception array antenna, a transmission control unit and a signal processing unit. The transmission control unit transmits transmission waves in either a directivity control mode or a MIMO mode. The directivity control mode controls directivity of the transmission array antenna by controlling the phase shifters. The MIMO mode transmits transmission waves so as not to interfere with each other from the selected at least two transmission antenna elements.
    Type: Application
    Filed: August 20, 2019
    Publication date: December 12, 2019
    Inventors: Katsuhiko KONDO, Yusuke AKAMINE, Yasuyuki MIYAKE
  • Publication number: 20190351898
    Abstract: A driving support apparatus supports driving of the vehicle. The driving support apparatus includes a brake pedal detection unit, a retraction speed calculation unit and a driving operation device setting unit. The brake pedal detection unit detects an operation amount of the brake pedal. The retraction speed calculation unit calculates a retraction speed of the brake pedal, based on the operation amount of the brake pedal detected by the brake pedal detection unit. The driving operation device setting unit sets a reaction force exerted by a driving operation device to a larger value as the retraction speed calculated by the retraction speed calculation unit becomes higher.
    Type: Application
    Filed: July 30, 2019
    Publication date: November 21, 2019
    Inventors: Katsuhiko KONDO, Yusuke AKAMINE, Yasuyuki MIYAKE
  • Publication number: 20190315373
    Abstract: An executing unit is configured to execute at least one of control of operating performance of a plurality of sensors which monitor different regions around a vehicle and predetermined processing for each of a plurality of output values output from the plurality of sensors. A specifying unit is configured to specify a direction of the vehicle with respect to a reference direction set on the basis of a road around the vehicle. A setting unit is configured to set priorities of the plurality of sensors in accordance with the direction of the vehicle specified by the specifying unit. The executing unit changes at least one of ratios of the operating performance of the plurality of sensors and ratios of amounts of processing performed for the plurality of output values on the basis of the priorities.
    Type: Application
    Filed: October 16, 2017
    Publication date: October 17, 2019
    Inventors: Katsuhiko KONDO, Yusuke AKAMINE, Yasuyuki MIYAKE
  • Patent number: 10446034
    Abstract: The driving support system detects an object existing around an own vehicle. The driving support system 1 predicts a position of a movement destination of the detected object. The driving support system sets a region having a predetermined width at each of an X coordinate and a Y coordinate as a tracking region to be set for tracking the object, based on an XY coordinate of the position of the predicted movement destination of the object. The driving support system limits the tracking region, based on a tracking exclusion region where objects unsuitable as tracking targets may be detected with high probability. At that time, the driving support system limits the tracking region by excluding the tracking exclusion region from the tracking region.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: October 15, 2019
    Assignee: DENSO CORPORATION
    Inventors: Yusuke Akamine, Tomohiko Tsuruta, Yasuyuki Miyake