Patents by Inventor Mitsuyasu Matsuura

Mitsuyasu Matsuura 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).

  • Publication number: 20210311190
    Abstract: In an object detection device, a signal generation unit generates a drive signal, a transmission unit transmits an ultrasonic wave as a search wave in response to the input drive signal, and a reception unit receives an ultrasonic wave to generate a received signal. A judging unit performs object detection determination based on the received signal. The drive signal has at least two frequencies, and the judging unit extracts at least two amplitudes corresponding to the at least two frequencies from the received signal, and performs determination based on a relationship between the at least two amplitudes.
    Type: Application
    Filed: June 16, 2021
    Publication date: October 7, 2021
    Inventors: Yu KOYAMA, Mitsuyasu MATSUURA, Hideki OTSUKA
  • Publication number: 20210311189
    Abstract: An object detecting apparatus is configured to detect a surrounding object. The object detecting apparatus is provided with a driving signal generation unit provided to generate a driving signal that drives a transmitter unit including a transmitter emitting transmission waves externally; and a control unit provided to control an output of the driving signal transmitted to the transmitter unit from the driving signal generation unit. The driving signal generation unit is configured to generate the driving signal of which the frequency changes stepwise.
    Type: Application
    Filed: June 16, 2021
    Publication date: October 7, 2021
    Inventors: Yohei SUZUKI, Yu KOYAMA, Mitsuyasu MATSUURA, Satoru NORO, Tetsuya AOYAMA, Hideki OTSUKA
  • Publication number: 20210311185
    Abstract: An apparatus includes a drive signal generator that selectively outputs, as a drive signal, one of a first drive signal and a second drive signal. The first drive signal has a first temporal frequency change within a first frequency band that is defined from a first lowest frequency to a first highest frequency inclusive. The second drive signal has a second temporal frequency change within a second frequency band that is defined from a second lowest frequency to a second highest frequency inclusive. Each of the first and second frequency bands has a corresponding one of first and second intermediate frequencies that is defined as one of a center frequency and an average frequency of the corresponding one of the first and second frequency bands. The second intermediate frequency is different from the first intermediate frequency. The second frequency band is partially overlapped with the first frequency band.
    Type: Application
    Filed: June 16, 2021
    Publication date: October 7, 2021
    Inventors: Yu KOYAMA, Mitsuyasu MATSUURA, Satoru NORO, Tetsuya AOYAMA
  • Publication number: 20210306590
    Abstract: An image processing unit identifies the shape of an obstacle that is identified from an area that appears in a peripheral image based on an image captured by a camera. The shape of the obstacle includes at least a tilt of a section of the obstacle in a road-surface direction. The section of the obstacle faces a vehicle. The image processing unit generates a superimposed image in which a mark image that is generated as a pattern that indicates the identified obstacle is superimposed onto a position that corresponds to the obstacle in the peripheral image. At this time, the image processing unit variably changes properties of the mark image based on the tilt of the obstacle identified by an obstacle identifying unit. The image processing unit then displays the generated superimposed image on display apparatus.
    Type: Application
    Filed: June 14, 2021
    Publication date: September 30, 2021
    Applicant: DENSO CORPORATION
    Inventors: Yu MAEDA, Taketo HARADA, Mitsuyasu MATSUURA, Hirohiko YANAGAWA, Muneaki MATSUMOTO
  • Patent number: 11105895
    Abstract: A sensor unit including an object detection sensor and an inclination sensor is mounted to a vehicle, and axial misalignment of the object detection sensor is determined as follows. A first inclination angle acquiring step of disposing the sensor unit, so that a first predetermined direction is aligned with a second predetermined direction before the sensor unit is mounted to the vehicle, and acquiring a first inclination angle detected by the inclination sensor from the inclination sensor, is performed. Then, a second inclination angle acquiring step of mounting the sensor unit on the vehicle and acquiring a second inclination angle detected by the inclination sensor from the inclination sensor, is performed. Finally, an axial misalignment determining step of determining whether axial misalignment has occurred at the object detection sensor, based on the first inclination angle and the second inclination angle, is performed.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: August 31, 2021
    Assignee: DENSO CORPORATION
    Inventors: Satoru Noro, Hiroyuki Kani, Hideki Otsuka, Mitsuyasu Matsuura
  • Publication number: 20210263149
    Abstract: An object detection device includes a drive signal generation unit provided to generate a drive signal for driving a transmitter configured to transmit a search wave to the outside, and a control unit provided to control output of the drive signal from the drive signal generation unit to the transmitter. The drive signal generation unit generates a first drive signal corresponding to a first search wave and a second drive signal corresponding to a second search wave having an encoding scheme that is different from the encoding scheme of the first search wave. The control unit causes the drive signal generation unit to output the first drive signal and the second drive signal to the transmitter at different timings so that one of the first and second search waves is transmitted in a transmission interval between transmissions of the other search wave.
    Type: Application
    Filed: May 7, 2021
    Publication date: August 26, 2021
    Inventors: Yu KOYAMA, Mitsuyasu MATSUURA, Takuya NOMURA
  • Patent number: 11087149
    Abstract: An ECU is applied to a vehicle system that is provided with lateral sensors which acquire distance information expressing a distance to an object that is located at a position on a lateral side of a vehicle. When distance information on the object is acquired by the lateral sensors, a judgement is made by the ECU as to whether or not the object is a predetermined moving object that moves relative to the vehicle. The ECU determines that the object is a target to be subjected to contact avoidance processing for avoiding contact with the object, based on a result of judging whether or not the object for which the distance information is acquired is a moving object.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: August 10, 2021
    Assignee: DENSO CORPORATION
    Inventors: Taketo Harada, Mitsuyasu Matsuura, Yosuke Miyamoto
  • Publication number: 20210223394
    Abstract: An object detection device includes a signal generator configured to generate a drive signal including an identification signal for identifying ultrasonic waves, a transmitter configured to transmit an ultrasonic wave as a probe wave in response to the drive signal, a receiver configured to receive the ultrasonic wave to generate a reception signal, and a determiner configured to analyze frequencies of the reception signal to determine whether the received wave is a reflected wave of the probe wave, thereby detecting an object. The drive signal includes a ramp-up signal generated to be followed by the identification signal and is used to ramp up an amplitude of the probe wave. A frequency of the ramp-up signal is set to include a frequency at which a transmission/reception efficiency is higher than a transmission/reception efficiency at each of a maximum frequency of the identification signal and a minimum frequency of the identification signal.
    Type: Application
    Filed: April 1, 2021
    Publication date: July 22, 2021
    Applicant: DENSO CORPORATION
    Inventors: Yu KOYAMA, Mitsuyasu MATSUURA, Satoru NORO, Hideki OTSUKA, Tetsuya AOYAMA
  • Patent number: 11067688
    Abstract: An obstacle detection apparatus for vehicles includes: a first ultrasonic sensor for detecting a distance to an obstacle; a second ultrasonic sensor at a position of the vehicle for receiving a reflection wave from the obstacle of an ultrasonic wave from the first ultrasonic wave; a notifier that gives a notification of detecting the obstacle present within a preset distance in one or more of predetermined notification areas including a first notification area for the first ultrasonic sensor, and a second notification area for the second ultrasonic sensor detects the obstacle for the vehicle; and a controller that controls contents to be notified by the notifier. Furthermore, the controller determines whether a first indirect wave distance and a second indirect wave distance are used to determine whether to give the notification of detecting the obstacle in the first notification area.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: July 20, 2021
    Assignees: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Mitsuyasu Matsuura, Yasutaka Atarashi, Tsuyoshi Ando, Motonari Ohbayashi
  • Patent number: 11064151
    Abstract: An image processing unit identifies the shape of an obstacle that is identified from an area that appears in a peripheral image based on an image captured by a camera. The shape of the obstacle includes at least a tilt of a section of the obstacle in a road-surface direction. The section of the obstacle faces a vehicle. The image processing unit generates a superimposed image in which a mark image that is generated as a pattern that indicates the identified obstacle is superimposed onto a position that corresponds to the obstacle in the peripheral image. At this time, the image processing unit variably changes properties of the mark image based on the tilt of the obstacle identified by an obstacle identifying unit. The image processing unit then displays the generated superimposed image on display apparatus.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: July 13, 2021
    Assignee: DENSO CORPORATION
    Inventors: Yu Maeda, Taketo Harada, Mitsuyasu Matsuura, Hirohiko Yanagawa, Muneaki Matsumoto
  • Patent number: 11024174
    Abstract: A parking space detection apparatus detects a parking space of an own vehicle and includes: a vehicle determination section that determines whether an other vehicle is present on at least one of two sides of a parking space, based on search information acquired from an in-vehicle search section that searches for the parking space; a width calculation section that, it is determined that the other vehicle is present on at least one of the two sides of the parking space, calculate a width of the parking space on an entrance side and a width of the parking space on an inner side based on the search information; and a parking determination section that determines whether the own vehicle is able to park in the parking space based on the widths of the parking space on the entrance side and on the inner side and size of the own vehicle.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: June 1, 2021
    Assignee: DENSO CORPORATION
    Inventors: Hikmet Cetin, Shusaku Shigemura, Mitsuyasu Matsuura
  • Patent number: 11014566
    Abstract: An object detection apparatus is provided with a distance measurement sensor that measures a distance to an object which exists in a surrounding area of a vehicle, by transmitting scanning waves to the surrounding of the vehicle and receiving reflection waves of the scanning waves, and an image acquiring section that is adopted to the vehicle, and is provided with an on-vehicle camera that captures images in the surrounding of the vehicle, the imaging acquiring section acquiring an image that is captured by the camera. The apparatus includes a determination section that determines whether, a predetermined object that is difficult to detect by the reflection waves of the distance measurement sensor is included in the object image, and a sensitivity control section that increases a sensitivity of the object detection by the distance measurement sensor and a vehicle control that is executed relative to the predetermined object as a target object.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: May 25, 2021
    Assignee: DENSO CORPORATION
    Inventors: Yu Maeda, Hirohiko Yanagawa, Mitsuyasu Matsuura
  • 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: 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
  • Patent number: 10948592
    Abstract: An obstacle detection apparatus for vehicles includes: a first probe wave sensor detecting a direct wave distance as a distance to an obstacle by transmitting a probe wave and receiving a reflection wave of the probe wave reflected by the obstacle; a second probe wave sensor receiving the reflection wave to detect an indirect wave distance as a distance to the obstacle by receiving the reflection wave; an approach determinator determining whether the obstacle is present between the first probe wave sensor and the second probe wave sensor and whether the obstacle is approaching the vehicle; and a distance determinator determining an obstacle distance to be less than or equal to a predetermined distance range when the indirect wave distance falls out of the distance range as the obstacle is present between the first probe wave sensor and the second probe wave sensor and the obstacle is approaching the vehicle.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: March 16, 2021
    Assignees: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Mitsuyasu Matsuura, Tsuyoshi Ando, Takayuki Hiromitsu, Motonari Ohbayashi, Hironobu Ishijima
  • Publication number: 20210055397
    Abstract: An object detection device includes a signal generation unit, a drive unit, an object determination unit, and a drive control unit. The signal generation unit generates at least one pulse signal that includes an identification code for identifying the ultrasonic wave. The drive unit drives the wave transceiver unit using a current or a voltage according to the at least one pulse signal. The object determination unit compares a code included in the received ultrasonic wave with the identification code and determines whether the received ultrasonic wave is a wave resulting from reflection of the ultrasonic wave transmitted by the wave transceiver unit, and determines whether an object is present in a predetermined detection range based on the amplitude of the received ultrasonic wave. The drive control unit reduces the current or the voltage used by the drive unit when a predetermined amplitude rise time has elapsed.
    Type: Application
    Filed: November 9, 2020
    Publication date: February 25, 2021
    Inventors: Mitsuyasu MATSUURA, Yu KOYAMA, Taketo HARADA
  • Patent number: 10928516
    Abstract: An ultrasonic type object detection apparatus sequentially detects a distance between an ultrasonic sensor and an object in a coverage of a transmission wave at a predetermined detection cycle based on a time taken for the ultrasonic sensor to transmit the transmission wave and then to receive a reflection wave. The apparatus includes: a storage storing the distance to the object; a vehicle information acquisition device acquiring vehicle information for calculating a movement distance; a detection distance predictor predicting a next detected distance to the object based on a past detection result and the vehicle information; and a short range determinator determining whether the object is present in a short range area in which the distance between the object and the ultrasonic sensor is equal to or shorter than a short range threshold.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: February 23, 2021
    Assignees: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuya Nomura, Mitsuyasu Matsuura, Taiki Yoshida, Motonari Ohbayashi, Hironobu Ishijima
  • Patent number: 10929695
    Abstract: An obstacle detection apparatus includes a distance measuring sensor, an imaging section, and a control section. Based on a reception result of reception waves obtained by the distance measuring sensor, the control section acquires an estimated reflection position in an illuminated region already irradiated with search waves. Based on the estimated reflection position, the control section recognizes an outer shape of an obstacle. Based on an imaging result obtained by the imaging section, the control section performs image recognition of the obstacle. Based on a recognition result of the outer shape of the obstacle and a result of the image recognition, the control section acquires a relative position, with respect to a vehicle, of a portion of the obstacle in an image captured by the imaging section included in a non-irradiated region ahead of the illuminated region in a vehicle traveling direction.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: February 23, 2021
    Assignee: DENSO CORPORATION
    Inventors: Mitsuyasu Matsuura, Hideki Otsuka, Hirohiko Yanagawa
  • Patent number: 10885356
    Abstract: A parking assisting apparatus includes an imaging unit acquiring image information corresponding to an image of surroundings of a vehicle, an image processing section recognizing a feature shape in the image by processing the image information, an obstacle detecting section acquiring positional-relationship information corresponding to a positional relationship between the vehicle and an obstacle present around a parking space, and a manner-of-parking selecting section selecting a manner of parking the vehicle in the parking space from manner candidates including perpendicular parking and parallel parking based on the feature shape and the positional-relationship information.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: January 5, 2021
    Assignee: DENSO CORPORATION
    Inventors: Yu Maeda, Mitsuyasu Matsuura, Hirohiko Yanagawa, Hideki Otsuka
  • Patent number: 10885354
    Abstract: A perimeter monitoring device is applied to a vehicle comprising a distance measuring sensor for transmitting a probing wave and receiving a reflected wave of the probing wave and an imaging device for capturing an image of the surroundings of the vehicle. The perimeter monitoring device comprises: an information acquisition unit for acquiring distance information, directional information, and object width information of an object existing in the vicinity of the vehicle as detection information of the object provided by the distance measuring sensor; an area setting unit for setting an image processing area on which image processing is performed in the image captured by the imaging device based on the distance information, the directional information, and the object width information acquired by the information acquisition unit; and an object recognition unit for performing the image processing on the image processing area set by the area setting unit to recognize the object.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: January 5, 2021
    Assignee: DENSO CORPORATION
    Inventors: Yu Maeda, Taketo Harada, Mitsuyasu Matsuura, Hirohiko Yanagawa