Patents by Inventor Hiroshi Sakamoto

Hiroshi Sakamoto 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: 11423661
    Abstract: An object recognition apparatus include a storage device and a processor. The storage device stores peripheral information and tolerance information. The tolerance information is information in which the degree of tolerance for the undetected object is represented for each class of the object. The peripheral information is acquired by a sensor device provided in the vehicle. The processor performs object recognition process for recognizing an object around the vehicle. In the object recognition process, the processor identifies the object and its class to be detected based on the peripheral information, and calculates the likelihood that is a parameter representing the probability of detection of the object. Further, the processor calculates a likelihood threshold corresponding to the object based on the tolerance information, and determines whether to output the identification result of the object based on the comparative between the likelihood and the likelihood threshold.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: August 23, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Sakamoto, Ryosuke Fukatani, Hideyuki Matsui, Junya Ueno
  • Patent number: 11414836
    Abstract: Provided is a work machine that, within the limit of not harming dynamic stability, can perform work utilizing the impact generated when a cylinder driving a front work implement collides with a stroke end.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: August 16, 2022
    Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Yusuke Suzuki, Hiroshi Sakamoto, Mariko Mizuochi, Hiroaki Tanaka
  • Patent number: 11414841
    Abstract: Provided are a work point position computing section configured to compute the relative position of a work point set on a bucket with respect to an upper swing structure on the basis of posture information, a target surface setting section configured to set a target surface as a target of excavation work on the basis of design surface information, a primary operation determining section configured to determine which of operations of a boom and an arm is a primary operation as a main operation when the work point is moved along the target surface, and a recommended operation computing section configured to compute a recommended operation amount and a recommended operation direction of a secondary operation as another operation different from the primary operation in the operations of the boom and the arm according to an operation amount and an operation direction of the primary operation.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: August 16, 2022
    Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Hidekazu Moriki, Hisami Nakano, Hiroshi Sakamoto
  • Patent number: 11401696
    Abstract: An operator of a hydraulic excavator and a worker working outside of the hydraulic excavator carry a worker tag that sends a radio-wave signal including a magnetic field ID, a tag ID, and positional information obtained by a GNSS receiving section in case the worker tag receives a magnetic field signal generated by a magnetic field detecting device mounted on the hydraulic excavator. Based on positional information of the hydraulic excavator that is obtained from an GNSS receiving device and positional information of the worker tag, the position of the worker tag is calculated. In case the worker tag is detected in a proximity notification target area, a notification command is generated for notifying the operator of the hydraulic excavator of the detection of the worker tag, and output to a notification device in the cabin of the hydraulic excavator. Thus, a worker who is in proximity to the work machine is accurately detected, and the operator is prevented from being excessively alerted.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: August 2, 2022
    Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Mariko Mizuochi, Hiroshi Sakamoto, Kazushige Kurokami
  • Publication number: 20220220694
    Abstract: In a hydraulic excavator including a main controller that can execute area restriction control, the main controller is configured to calculate an operation velocity Vfx of a front work device in a machine body coordinate system and a movement velocity (dragging velocity) Vu of a machine body in a gravity coordinate system and correct a direction of a calculated target velocity vector Vt upward away from a construction target surface when generation of dragging is detected during execution of the area restriction control based on the calculated operation velocity Vfx of the front work device 2 and the calculated movement velocity Vu of the machine body.
    Type: Application
    Filed: August 3, 2020
    Publication date: July 14, 2022
    Inventors: Yusuke SUZUKI, Hiroaki TANAKA, Hisami NAKANO, Hiroshi SAKAMOTO, Akihiro NARAZAKI
  • Publication number: 20220198585
    Abstract: The present invention provides a reception system, a reception method, and a non-transitory computer-readable medium storing a program that are capable of identifying a guest. The reception system (100) includes a face photo information check unit (1), and a reception terminal (2). When the reception terminal (2) receives an input indicating an application for a check-in of a guest (GS1), the face photo information check unit (1) checks passport-face-photo-at-check-in-time information scanned from a passport (P1) at the time of check-in, with face-photo-at-check-in-time information through photographing the guest (GS1) at the time of check-in. When the passport-face-photo-at-check-in-time information and the face-photo-at-check-in-time information indicate a same person as a result of checking by the face photo information check unit (1), the reception terminal (2) displays information on a room reserved by the guest (GS1), and issues a card key for the room reserved by the guest (GS1).
    Type: Application
    Filed: February 20, 2020
    Publication date: June 23, 2022
    Applicant: NEC Platforms, Ltd.
    Inventors: Teruoki MATSUMOTO, Hiroshi SAKAMOTO, Naorni KAKINAGA, Kiyokazu OTSUKA
  • Publication number: 20220170243
    Abstract: A working machine 1 includes a design data obtainment unit 29, a topography measuring device 30, and a controller 21. The controller 21 extracts peripheral area shape data from the design data in the construction-site coordinate system, maps similar shape portions between the extracted peripheral area shape data and the current topography data in the current topography coordinate system, calculates a coordinate transformation matrix to transform from the current topography coordinate system to the construction-site coordinate system so that a difference in coordinate values of the mapped shape portions is minimized, and transforms the self-position and posture of the working machine 1 and the current topography data from coordinates in the current topography coordinate system to coordinates in the construction-site coordinate system using the calculated coordinate transformation matrix.
    Type: Application
    Filed: September 18, 2020
    Publication date: June 2, 2022
    Inventors: Joonyoung ROH, Hiroshi SAKAMOTO, Youhei TORIYAMA, Naoki HAYAKAWA
  • Patent number: 11332128
    Abstract: A driving assistance apparatus includes a surrounding object recognition unit configured to recognize a surrounding object, a signal recognition unit configured to recognize a state of a light color of a traffic signal, and an assistance unit configured to assist driving of the host vehicle. The assistance unit is configured to determine whether or not there is a possibility that the host vehicle will come into contact with the surrounding object if the state of the light color is a state of prohibiting the host vehicle from proceeding in one or a plurality of specific directions and when the host vehicle proceeds in that specific direction, and calculate a withdrawal route candidate for the host vehicle to leave from the intersection without coming into contact with the surrounding object if it is determined that there is the possibility that the host vehicle will come into contact with the surrounding object.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: May 17, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi Sakamoto
  • Publication number: 20220136216
    Abstract: The present disclosure provides a work machine capable of providing operation assistance matching an operator's intent in consideration of a rotating motion. A control device 80 includes a storage device 81 and a central processing device 82. The storage device 81 has stored therein construction target information for a work device 10 and determination criteria information for the work content of the work device 10 based on the amount of operation of a rotating device 30.
    Type: Application
    Filed: September 28, 2020
    Publication date: May 5, 2022
    Inventors: Hiroaki TANAKA, Hisami NAKANO, Yusuke SUZUKI, Hiroshi SAKAMOTO
  • Publication number: 20220109955
    Abstract: Provided is a position estimation method in which a measurement signal and a response signal are transmitted and received between multiple n wireless stations respectively provided with known antennas installed at known positions different from each other and a wireless terminal station provided with a terminal antenna, RTT, which is a round-trip delay time of the transmission and reception, and RSSI, which is a strength of received radio waves of the signals, are measured, and a position of the wireless terminal station is estimated. The method includes: obtaining, as the position of the wireless terminal station, a solution of simultaneous equations of an RTT evaluation function fti for evaluating the estimate value of the position of the wireless terminal station that is estimated based on the RTT measured between the wireless terminal station and the known antenna i (i=1, 2, . . .
    Type: Application
    Filed: January 27, 2020
    Publication date: April 7, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Masamichi HOSODA, Tadashi MORI, Masaru MIYAMOTO, Hiroshi SAKAMOTO, Tomoki MURAKAMI, Tomoaki OGAWA
  • Publication number: 20220097621
    Abstract: A hydraulic excavator includes a controller that determines the start of loading work for a dump truck and the end of the loading work on the basis of the operation state of the hydraulic excavator at the time of sensing of a work instruction by a horn, integrates a work-target-object weight measured since the start of the loading work until the end of the loading work, and calculates a loaded amount of the dump truck.
    Type: Application
    Filed: February 14, 2020
    Publication date: March 31, 2022
    Inventors: Satoshi NAKAMURA, Youhei TORIYAMA, Hiroshi SAKAMOTO
  • Patent number: 11265841
    Abstract: An object is to enable high-accuracy position estimation of a wireless terminal station by efficiently performing connection between a wireless base station and the wireless terminal station using multiple distributed antennas.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: March 1, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Masamichi Hosoda, Yasushi Hanakago, Tadashi Mori, Masaru Miyamoto, Tomoki Murakami, Makoto Umeuchi, Hiroshi Sakamoto, Tomoaki Ogawa
  • Publication number: 20220050209
    Abstract: A dump truck includes front wheels disposed on left and right of a machine body frame to be steered, rear wheels disposed on the left and the right of the machine body frame, a side obstacle sensor that is provided on a side of the machine body frame to detect an obstacle, and a controller configured to output a notification signal to a notification device when an obstacle is detected by the side obstacle sensor. In the dump truck, the side obstacle sensor is provided at a position between the front wheel and the rear wheel on the side of the machine body frame, at which a virtual plane along an outer side face of the front wheel positioned correspondingly to a maximum steering angle steered in the maximum in a direction in which the front wheel becomes an inner wheel crosses an outer side face of the machine body frame. Consequently, a detection range of the obstacle sensor can be suppressed from being narrowed.
    Type: Application
    Filed: December 12, 2019
    Publication date: February 17, 2022
    Inventors: Shun TSUJIMURA, Hiroshi SAKAMOTO
  • Publication number: 20220049476
    Abstract: The line-of-sight direction of an operator is estimated on the basis of the posture of a front work device detected by a posture sensor, and plural display regions are set on a screen of a transparent display on the basis of the estimated line-of-sight direction of the operator. Then, the display position of a display image is calculated in such a manner that the display position is located in the display region corresponding to the kind of the display image in the set plural display regions.
    Type: Application
    Filed: February 4, 2020
    Publication date: February 17, 2022
    Inventors: Kazushige KUROKAMI, Shigeki TOKITA, Hiroshi SAKAMOTO
  • Publication number: 20220038246
    Abstract: A predetermined radio base station and subordinate radio terminals detect signals (beacons) regularly transmitted by other radio base stations, transmit information about radio channels and base station identifiers of the detected signals, and position information about the radio terminals to an interference area detection device to aggregate the information and the position information as a base station-base station detection list and a terminal-base station detection list.
    Type: Application
    Filed: September 13, 2019
    Publication date: February 3, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hiroshi SAKAMOTO, Hiroyuki NAKAMURA, Tomoaki OGAWA, Makoto UMEUCHI, Shinya OTSUKI, Junichi IWATANI, Masayoshi NABESHIMA
  • Patent number: 11225777
    Abstract: A mode selecting device configured to select a work mode of a hydraulic excavator, a work determining section configured to determine whether work contents of the hydraulic excavator are work contents other than those of the selected work mode on the basis of a detection result of pilot pressure sensors, a minimum alarm region determining section configured to determine one of a plurality of minimum alarm regions preset on the periphery of the hydraulic excavator on the basis of a selection result of the mode selecting device and a determination result of the work determining section, and an alarm determining section configured to output an alarm signal to a buzzer when the relative position of an obstacle, the relative position being computed by an obstacle position calculating section, is inside an alarm region set so as to include the minimum alarm region determined by the minimum alarm region determining section.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: January 18, 2022
    Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Kazushige Kurokami, Hiroshi Sakamoto, Shigeki Tokita
  • Publication number: 20210400506
    Abstract: There are provided an information collecting device configured to collect a frame A transmitted and received between a wireless LAN base station that is an evaluation target and a wireless LAN terminal subordinate to the wireless LAN base station that is the evaluation target and a frame B transmitted and received between a wireless LAN base station that is a non-evaluation target and a wireless LAN terminal subordinate to the wireless LAN base station that is the non-evaluation target, and extract radio information on communication quality of each of the wireless LAN base stations from a header of a corresponding one of the frames A and B, and a wireless LAN communication quality estimation device configured to acquire, from the wireless LAN base station that is the evaluation target, information on the number of currently connected wireless LAN terminals, acquire, from the information collecting device, the radio information on the communication quality of each of the wireless LAN base stations, and analyze
    Type: Application
    Filed: October 18, 2019
    Publication date: December 23, 2021
    Inventors: Masayoshi Nabeshima, Shinya Otsuki, Tomoaki Ogawa, Hiroshi Sakamoto, Makoto Umeuchi, Junichi Iwatani, Hiroyuki Nakamura
  • Publication number: 20210392535
    Abstract: A plurality of access points configured to communicate with a subordinate wireless LAN terminal, an information collecting device configured to collect a frame respectively transmitted and received between the plurality of access points and the wireless LAN terminal, and extract information on communication quality of an access point of the plurality of access points from a header of the frame, and an information collecting server configured to acquire the information on the communication quality of the access point from the information collecting device, analyze the information to determine whether the communication quality is good or bad for each of the plurality of access points, and execute processing of externally displaying or notifying a result that is determined are included.
    Type: Application
    Filed: October 18, 2019
    Publication date: December 16, 2021
    Inventors: Masayoshi Nabeshima, Hiroyuki Nakamura, Tomoaki Ogawa, Shinya Otsuki, Makoto Umeuchi, Junichi Iwatani, Hiroshi Sakamoto
  • Publication number: 20210385782
    Abstract: In a wireless information collecting method executed by at least one user terminal device that measures wireless information used in a site survey and a server device that stores the wireless information and performs the site survey, the user terminal device performs a step of periodically measuring a current position and transmitting positioning information indicating the current position to the server device, and a step of measuring the wireless information in accordance with a wireless information measurement number instructed by the server device and transmitting wireless information including a position and time to the server device.
    Type: Application
    Filed: September 27, 2019
    Publication date: December 9, 2021
    Inventors: Tomoaki Ogawa, Hiroyuki Nakamura, Shinya Otsuki, Makoto Umeuchi, Junichi Iwatani, Hiroshi Sakamoto, Masayoshi Nabeshima
  • Publication number: 20210377776
    Abstract: There are provided a plurality of radio devices detecting an interference source signal transmitted by an interference source and generating pieces of air time information showing whether the interference source signal exists or not for each predetermined time unit; and an aggregation device estimating air time of the interference source by acquiring the pieces of air time information from the plurality of radio devices and aggregating/integrating the acquired pieces of air time information for each predetermined unit time, matching timings.
    Type: Application
    Filed: September 13, 2019
    Publication date: December 2, 2021
    Inventors: Junichi Iwatani, Hiroyuki Nakamura, Tomoaki Ogawa, Makoto Umeuchi, Shinya Otsuki, Hiroshi Sakamoto, Masayoshi Nabeshima