Patents by Inventor Kyoichi TOHRIYAMA

Kyoichi TOHRIYAMA 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: 11562272
    Abstract: An evaluating apparatus is provided with: a first acquirer configured to obtain a feature value indicating driving behavior of a driver; a classifier configured to classify a plurality of feature values obtained from a plurality of drivers, into a plurality of groups; a second acquirer configured to obtain the feature value that is representative in each of the plurality of groups, as a representative feature value; a ranking device configured to give a rank corresponding to a driving carefulness degree, to each of the plurality of groups, on the basis of the representative feature value; and a determinator configured to determine a driver type corresponding to the driving carefulness degree of the driver, on the basis of a rank of a group into which the feature value of the driver is classified.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: January 24, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, THE UNIVERSITY OF TOKYO
    Inventors: Kyoichi Tohriyama, Takuma Ito, Masatsugu Soya, Minoru Kamata
  • Patent number: 11307040
    Abstract: A map information provision system includes: a road map information database configured to store road map information; a vehicle position determination unit configured to detect and determine a position of a vehicle on a road; a road map information extraction unit configured to extract the road map information around the vehicle from the road map information database, based on the position of the vehicle; and a waypoint map constructor unit configured to determine positions of waypoints and configure a waypoint map that is made up of the plurality of the waypoints, wherein the waypoint map is supplied to a driving support device for the vehicle or a driving control device for the vehicle and is utilized as map information on the planned driving route.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: April 19, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, THE UNIVERSITY OF TOKYO, National University Corporation Tokyo University of Agriculture and Technology, SCHOOL JUDICIAL PERSON IKUTOKU GAKUEN
    Inventors: Kyoichi Tohriyama, Takuma Ito, Satoshi Nakamura, Minoru Kamata, Pongsathorn Raksincharoensak, Tsukasa Shimizu, Hideo Inoue
  • Patent number: 11131552
    Abstract: A map generation system includes a server configured to: transfer reference curved road constituent points onto a measurement target curved road as virtual constituent points arranged along the measurement target curved road adjacent to the reference curved road; acquire virtual trajectory curvature information based on positions of the virtual constituent points; acquire detailed curve information of the measurement target curved road by acquiring, based on a position of a start point of the measurement target curved road preset in the road map information, travel information of a vehicle traveling on the measurement target curved road, and the virtual trajectory curvature information, measurement target curved road constituent points arranged at preset intervals from the start point along the measurement target curved road, and associating the virtual trajectory curvature information with each of the measurement target curved road constituent points; and generate a map by acquiring the second detailed curve
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: September 28, 2021
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, THE UNIVERSITY OF TOKYO
    Inventors: Kyoichi Tohriyama, Minoru Kamata, Takuma Ito, Satoshi Nakamura
  • Patent number: 11055542
    Abstract: A crosswalk marking estimating device includes: circuitry configured to: create a planar-view road surface image of a road around a vehicle; acquire end candidates which are candidates for ends of the bands, included in a crosswalk marking, in the planar-view road surface image based on the planar-view road surface image and a template image which is stored in advance; select a plurality of selected end candidates which is a set of the end candidates corresponding to an edge on the one side, in the road extending direction, of the crosswalk marking from a distribution of the end candidates in the road extending direction in the planar-view road surface image; and estimate a position of the edge of the crosswalk marking relative to the vehicle based on the selected end candidates.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: July 6, 2021
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, THE UNIVERSITY OF TOKYO
    Inventors: Kyoichi Tohriyama, Minoru Kamata, Takuma Ito
  • Patent number: 10807602
    Abstract: An evaluating apparatus is configured to evaluate a risk that exists in surroundings of a road on which a vehicle travels. The evaluating apparatus is provided with: a first determinator configured to determine a first risk value indicating an extent of a risk in one section of the road, on the basis of a feature value indicating driving behavior of a driver of the vehicle; a second determinator configured to determine a second risk value indicating an extent of a risk in the one section, on the basis of surrounding information about the surroundings of the road; and an acquirer configured to obtain reliability of the second risk value, by evaluating the second risk value by using the first risk value.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: October 20, 2020
    Assignees: Toyota Jidosha Kabushiki Kaisha, The University of Tokyo
    Inventors: Kyoichi Tohriyama, Takuma Ito, Masatsugu Soya, Minoru Kamata
  • Publication number: 20200272922
    Abstract: An evaluating apparatus is provided with: a first acquirer configured to obtain a feature value indicating driving behavior of a driver; a classifier configured to classify a plurality of feature values obtained from a plurality of drivers, into a plurality of groups; a second acquirer configured to obtain the feature value that is representative in each of the plurality of groups, as a representative feature value; a ranking device configured to give a rank corresponding to a driving carefulness degree, to each of the plurality of groups, on the basis of the representative feature value; and a determinator configured to determine a driver type corresponding to the driving carefulness degree of the driver, on the basis of a rank of a group into which the feature value of the driver is classified.
    Type: Application
    Filed: February 25, 2020
    Publication date: August 27, 2020
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, THE UNIVERSITY OF TOKYO
    Inventors: Kyoichi TOHRIYAMA, Takuma ITO, Masatsugu SOYA, Minoru KAMATA
  • Publication number: 20200269850
    Abstract: An evaluating apparatus is provided with: a first determinator configured to determine a first risk value indicating whether or not there is a risk in one section of the road and an extent of the existing risk; a second determinator configured to determine a second risk value indicating whether or not there is a risk in the one section and an extent of the existing risk; and an outputting device configured such that if it is determined on said first determinator that there is a risk, said outputting device outputs the first risk value as a definite risk value indicating the risk in the one section, and such that if it is determined on said first determinator that there is no risk and if it is determined on said second determinator that there is a risk, said outputting device outputs the second risk value as the definite risk value.
    Type: Application
    Filed: February 21, 2020
    Publication date: August 27, 2020
    Applicants: Toyota Jidosha Kabushiki Kaisha, The University of Tokyo
    Inventors: Kyoichi Tohriyama, Takuma Ito, Masatsugu Soya, Minoru Kamata
  • Publication number: 20200273339
    Abstract: An evaluating apparatus is configured to evaluate a risk that exists in surroundings of a road on which a vehicle travels. The evaluating apparatus is provided with: a first determinator configured to determine a first risk value indicating an extent of a risk in one section of the road, on the basis of a feature value indicating driving behavior of a driver of the vehicle; a second determinator configured to determine a second risk value indicating an extent of a risk in the one section, on the basis of surrounding information about the surroundings of the road; and an acquirer configured to obtain reliability of the second risk value, by evaluating the second risk value by using the first risk value.
    Type: Application
    Filed: February 21, 2020
    Publication date: August 27, 2020
    Applicants: Toyota Jidosha Kabushiki Kaisha, The University of Tokyo
    Inventors: Kyoichi Tohriyama, Takuma Ito, Masatsugu Soya, Minoru Kamata
  • Publication number: 20200225044
    Abstract: A map information provision system includes: a road map information database configured to store road map information; a vehicle position determination unit configured to detect and determine a position of a vehicle on a road; a road map information extraction unit configured to extract the road map information around the vehicle from the road map information database, based on the position of the vehicle; and a waypoint map constructor unit configured to determine positions of waypoints and configure a waypoint map that is made up of the plurality of the waypoints, wherein the waypoint map is supplied to a driving support device for the vehicle or a driving control device for the vehicle and is utilized as map information on the planned driving route.
    Type: Application
    Filed: October 5, 2018
    Publication date: July 16, 2020
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, The University of Tokyo, National University Corporation Tokyo University of Agriculture and Technology, School Judicial Person IKUTOKU GAKUEN
    Inventors: Kyoichi TOHRIYAMA, Takuma ITO, Satoshi NAKAMURA, Minoru KAMATA, Pongsathorn RAKSINCHAROENSAK, Tsukasa SHIMIZU, Hideo INOUE
  • Publication number: 20200182630
    Abstract: A map generation system includes a server configured to: transfer reference curved road constituent points onto a measurement target curved road as virtual constituent points arranged along the measurement target curved road adjacent to the reference curved road; acquire virtual trajectory curvature information based on positions of the virtual constituent points; acquire detailed curve information of the measurement target curved road by acquiring, based on a position of a start point of the measurement target curved road preset in the road map information, travel information of a vehicle traveling on the measurement target curved road, and the virtual trajectory curvature information, measurement target curved road constituent points arranged at preset intervals from the start point along the measurement target curved road, and associating the virtual trajectory curvature information with each of the measurement target curved road constituent points; and generate a map by acquiring the second detailed curve
    Type: Application
    Filed: December 6, 2019
    Publication date: June 11, 2020
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, THE UNIVERSITY OF TOKYO
    Inventors: Kyoichi TOHRIYAMA, Minoru KAMATA, Takuma ITO, Satoshi NAKAMURA
  • Publication number: 20200117919
    Abstract: A crosswalk marking estimating device includes: circuitry configured to: create a planar-view road surface image of a road around a vehicle; acquire end candidates which are candidates for ends of the bands, included in a crosswalk marking, in the planar-view road surface image based on the planar-view road surface image and a template image which is stored in advance; select a plurality of selected end candidates which is a set of the end candidates corresponding to an edge on the one side, in the road extending direction, of the crosswalk marking from a distribution of the end candidates in the road extending direction in the planar-view road surface image; and estimate a position of the edge of the crosswalk marking relative to the vehicle based on the selected end candidates.
    Type: Application
    Filed: July 23, 2019
    Publication date: April 16, 2020
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, THE UNIVERSITY OF TOKYO
    Inventors: Kyoichi TOHRIYAMA, Minoru KAMATA, Takuma ITO