Patents by Inventor Naohiro FUJIWARA

Naohiro FUJIWARA 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: 11976929
    Abstract: In a localization apparatus for a vehicle, a landmark detector detects a landmark from camera information acquired from a camera mounted to the vehicle. An associator associates the landmark with a specific set of radar information by setting an error region in which the landmark may exist, selecting, from a radar observation point cluster formed of a set of radar observation points corresponding to a set of radar information acquired from a radar mounted to the vehicle, a radar observation point cluster formed of a set of radar observation points included in the error region, and associating the landmark with the specific set of radar information corresponding to the selected radar observation point cluster. A positional relationship calculator calculates a positional relationship between the landmark and the vehicle based on the specific set of radar information associated with the landmark.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: May 7, 2024
    Assignee: DENSO CORPORATION
    Inventors: Ariya Terani, Itsuki Chiba, Naohiro Fujiwara, Makoto Ohkado, Keisuke Hachisuka
  • Patent number: 11954918
    Abstract: An object detection device includes: a camera ECU that measures the bearing of an object by detecting the object from an image captured by a camera and identifying the direction toward the object; a sonar that measures the distance to the object existing around the vehicle; and a position identification unit that identifies the position of the object by combining the measured bearing data and distance data on a grid map that is based on a polar coordinate system and identifying the grid cell where the object exists on the grid map.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: April 9, 2024
    Assignee: DENSO CORPORATION
    Inventors: Makoto Ohkado, Naohiro Fujiwara
  • Publication number: 20230227043
    Abstract: In a road information distribution system, a cloud server detects to road location where an abnormality is occurring based on vehicle location information of a plurality of vehicles or vehicle controlling amount of a plurality of vehicles, and transmits an abnormal road location to a vehicle before identifying a cause of the abnormality. The road information distribution system then notifies the abnormal road location to a driver of the vehicle when the vehicle approaches a predetermined distance from the abnormal road location.
    Type: Application
    Filed: March 28, 2023
    Publication date: July 20, 2023
    Inventors: Naohiro FUJIWARA, Atsushi BABA
  • Publication number: 20230014570
    Abstract: A route generation device includes: an autonomous route generator configured to generate, based on surrounding information around an own vehicle detected by a vehicle-mounted detector, an expected autonomous route along which the own vehicle is to travel; a map route acquirer configured to acquire an expected map route along which the own vehicle is to travel based on map data; and an integrated route generator configured to generate an integrated route using the autonomous route and the map route.
    Type: Application
    Filed: September 28, 2022
    Publication date: January 19, 2023
    Inventors: Naohiro FUJIWARA, Makoto OHKADO, Tatsuya NAMIKIRI
  • Publication number: 20220317281
    Abstract: A self-location estimation device includes a landmark detection unit that detects a landmark from camera information, an association unit that associates the landmark detected by the landmark detection unit with a radar information group, a landmark sorting unit that performs sorting of the landmarks detected by the landmark detection unit based on the radar information groups associated with the landmarks by the association unit, and a positional relation calculation unit that calculates a positional relation between an own vehicle and the landmark employed by the landmark sorting unit, based on the radar information group associated with the landmark.
    Type: Application
    Filed: June 22, 2022
    Publication date: October 6, 2022
    Inventors: Itsuki CHIBA, Makoto OHKADO, Ariya TERANI, Naohiro FUJIWARA
  • Publication number: 20220215673
    Abstract: In an occupancy grid map generation device for generating an occupancy grid map that indicates, for each of cells of a grid into which a region is divided, an occupancy probability that an object occupies the cell, an occupancy probability updating unit is configured to, based detection result data of an object therearound, successively update the occupancy probability for each of the cells calculated at a previous time to calculate a latest occupancy probability. An updating weight calculation unit is configured to acquire data about presence or absence of an object in each of the cells therearound based on map data, and determine a weight of the detection result data used by the occupancy probability updating unit to update the occupancy probability for the cell, based on a degree of match between the data about presence or absence of an object in the cell and the detection result data.
    Type: Application
    Filed: March 25, 2022
    Publication date: July 7, 2022
    Inventors: Naohiro Fujiwara, Makoto Ohkado, Ariya Terani, Itsuki Chiba
  • Publication number: 20210231799
    Abstract: An object detection device includes an azimuth sensor that measures an azimuth region of an object that is present around a vehicle, a plurality of distance sensors each of which measures a distance to the object, and an object determination section that calculates arcs of circles whose radii are the distances measured by the respective distance sensors and calculates intersection points of a tangent to adjacent ones of the arcs and the azimuth region measured by the azimuth sensor.
    Type: Application
    Filed: April 15, 2021
    Publication date: July 29, 2021
    Inventors: Naohiro FUJIWARA, Makoto OHKADO
  • Publication number: 20210190507
    Abstract: In a localization apparatus for a vehicle, a landmark detector detects a landmark from camera information acquired from a camera mounted to the vehicle. An associator associates the landmark with a specific set of radar information by setting an error region in which the landmark may exist, selecting, from a radar observation point cluster formed of a set of radar observation points corresponding to a set of radar information acquired from a radar mounted to the vehicle, a radar observation point cluster formed of a set of radar observation points included in the error region, and associating the landmark with the specific set of radar information corresponding to the selected radar observation point cluster. A positional relationship calculator calculates a positional relationship between the landmark and the vehicle based on the specific set of radar information associated with the landmark.
    Type: Application
    Filed: December 21, 2020
    Publication date: June 24, 2021
    Inventors: Ariya TERANI, Itsuki CHIBA, Naohiro FUJIWARA, Makoto OHKADO, Keisuke HACHISUKA
  • Publication number: 20200401825
    Abstract: An object detection device includes: a camera ECU that measures the bearing of an object by detecting the object from an image captured by a camera and identifying the direction toward the object; a sonar that measures the distance to the object existing around the vehicle; and a position identification unit that identifies the position of the object by combining the measured bearing data and distance data on a grid map that is based on a polar coordinate system and identifying the grid cell where the object exists on the grid map.
    Type: Application
    Filed: September 4, 2020
    Publication date: December 24, 2020
    Inventors: Makoto OHKADO, Naohiro FUJIWARA