Patents by Inventor Hiroya Fujiwara

Hiroya 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).

  • Publication number: 20240146633
    Abstract: An object of the present disclosure is to measure a delay time occurring in a device that receives or outputs a video or an audio without requiring a special apparatus or precise inter-apparatus time synchronization.
    Type: Application
    Filed: June 25, 2021
    Publication date: May 2, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tatsuya FUKUI, Toshihito FUJIWARA, Ryota SHIINA, Hiroya ONO
  • Publication number: 20240129033
    Abstract: An object of the present invention is to provide a communication method, a transceiver, a relay, a communication system, and a program capable of performing high-speed communication even in a case where there is an obstacle between two separated points in water. In this communication method, two points each confirm the other's position by using sound wave communication which is likely to be diffracted as a wave due to a relatively small frequency and a large wavelength. Since the communication method uses optical wireless communication in which straightness is high but high-speed communication is possible, a relay capable of forming a path for communication while avoiding an obstacle is selected from a plurality of relays. In this communication method, signals are transmitted and received by using optical wireless communication using a relay on the path.
    Type: Application
    Filed: February 26, 2021
    Publication date: April 18, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Satoshi NARIKAWA, Toshihito FUJIWARA, Hiroya ONO
  • Publication number: 20240121505
    Abstract: An object of the present disclosure is to reduce a delay time from input of a plurality of videos to output of combined videos. The present disclosure is a video combining device detecting a time deviation between a timing of a frame of each video and a predetermined timing when videos from a plurality of cameras are combined into one screen, giving an instruction for an imaging frame rate to the cameras such that the time deviation is reduced, and combining the videos from the plurality of cameras into one screen and outputting the combined videos.
    Type: Application
    Filed: February 18, 2021
    Publication date: April 11, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hiroya ONO, Toshihito FUJIWARA, Tatsuya FUKUI
  • Publication number: 20240121005
    Abstract: An object of the present invention is to provide a communication method, a transceiver, a relay, a communication system, and a program capable of performing high-speed communication even in a case where there is an obstacle between two separated points in water. In this communication method, two points each confirm the other's position by using sound wave communication which is likely to be diffracted as a wave due to a relatively small frequency and a large wavelength. Since the communication method uses optical wireless communication in which straightness is high but high-speed communication is possible, a path for communication while avoiding an obstacle via a relay is calculated. In the communication method, the relay is guided and moved to an appropriate place according to the calculated path, and a signal is transmitted and received by using optical wireless communication using the relay that has moved to an appropriate place.
    Type: Application
    Filed: February 26, 2021
    Publication date: April 11, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Satoshi NARIKAWA, Toshihito FUJIWARA, Hiroya ONO
  • Publication number: 20240119018
    Abstract: An object of the present disclosure is to enable data collection from a plurality of USB devices installed at remote locations. The present disclosure is a USB transmission system including: a device-side transmitter/receiver configured to transmit/receive data to/from a USB device; and a host-side transmitter/receiver configured to transmit/receive data to/from a USB host, in which each of the device-side transmitter/receiver and the host-side transmitter/receiver includes a data transmission/reception unit configured to transmit/receive a packet of a USB protocol layer via a data network, and the host-side transmitter/receiver includes a hub configured to transfer data to be transmitted/received by the data transmission/reception unit included in the host-side transmitter/receiver to the USB host.
    Type: Application
    Filed: February 18, 2021
    Publication date: April 11, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tatsuya FUKUI, Toshihito FUJIWARA, Hiroya ONO, Ryota SHIINA, Tomohiko IKEDA
  • Patent number: 11565669
    Abstract: A braking force controller causes a first actuator unit to generate a target jerk when the target jerk is equal to or larger than a first jerk, causes the first actuator unit to generate the first jerk and a second actuator unit to generate a jerk obtained by subtracting the first jerk from the target jerk as an additional jerk when the target jerk is smaller than the first jerk and equal to or larger than the sum of the first jerk and a second jerk, and causes the first actuator unit to generate the first jerk and the second actuator unit to generate the second jerk as the additional jerk when the target jerk is smaller than the sum of the first jerk and the second jerk.
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: January 31, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shun Sato, Kazuki Miyake, Yoshihisa Yamada, Akitsugu Sakai, Kazumitsu Sugano, Hiroya Fujiwara, Hiromasa Takai
  • Patent number: 11453377
    Abstract: A braking force control apparatus includes: a prediction unit that predicts a time from a present time until a next start of the gear shift operation in the stepped automatic transmission based on a speed of the vehicle; an acquisition unit that acquires a state of a battery charged by a regenerative power generation of the regenerative generator; and a control unit that stops the regenerative power generation by the regenerative generator before the gear shift of the stepped automatic transmission is started, when it is determined, during the regenerative power generation by the regenerative generator, that the regenerative power generation by the regenerative power generator may be stopped due to the state of the battery during the gear shift operation of the stepped automatic transmission, based on a prediction result by the prediction unit and the state of the battery acquired by the acquisition unit.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: September 27, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuki Matsumiya, Shun Sato, Hiroya Fujiwara, Masahiro Nishiu
  • Patent number: 11420611
    Abstract: A braking force control apparatus includes: a prediction unit that predicts a time from a present time until a next start of the gear shift operation in the stepped automatic transmission based on a speed of the vehicle; an acquisition unit that acquires a state of a battery charged by a regenerative power generation of the regenerative generator; and a control unit that stops the regenerative power generation by the regenerative generator before the gear shift of the stepped automatic transmission is started, when it is determined, during the regenerative power generation by the regenerative generator, that the regenerative power generation by the regenerative power generator may be stopped due to the state of the battery during the gear shift operation of the stepped automatic transmission, based on a prediction result by the prediction unit and the state of the battery acquired by the acquisition unit.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: August 23, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuki Matsumiya, Shun Sato, Hiroya Fujiwara, Masahiro Nishiu
  • Publication number: 20220234553
    Abstract: A braking force controller causes a first actuator unit to generate a target jerk when the target jerk is equal to or larger than a first jerk, causes the first actuator unit to generate the first jerk and a second actuator unit to generate a jerk obtained by subtracting the first jerk from the target jerk as an additional jerk when the target jerk is smaller than the first jerk and equal to or larger than the sum of the first jerk and a second jerk, and causes the first actuator unit to generate the first jerk and the second actuator unit to generate the second jerk as the additional jerk when the target jerk is smaller than the sum of the first jerk and the second jerk.
    Type: Application
    Filed: April 14, 2022
    Publication date: July 28, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shun SATO, Kazuki MIYAKE, Yoshihisa YAMADA, Akitsugu SAKAI, Kazumitsu SUGANO, Hiroya FUJIWARA, Hiromasa TAKAI
  • Patent number: 11338779
    Abstract: A braking force controller causes a first actuator unit to generate a target jerk when the target jerk is equal to or larger than a first jerk, causes the first actuator unit to generate the first jerk and a second actuator unit to generate a jerk obtained by subtracting the first jerk from the target jerk as an additional jerk when the target jerk is smaller than the first jerk and equal to or larger than the sum of the first jerk and a second jerk, and causes the first actuator unit to generate the first jerk and the second actuator unit to generate the second jerk as the additional jerk when the target jerk is smaller than the sum of the first jerk and the second jerk.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: May 24, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shun Sato, Kazuki Miyake, Yoshihisa Yamada, Akitsugu Sakai, Kazumitsu Sugano, Hiroya Fujiwara, Hiromasa Takai
  • Patent number: 10890249
    Abstract: A shift control device for a vehicle, includes: a minimum vehicle speed calculator that, when it is determined that a vehicle on traveling needs to decelerate before the vehicle arrives at a forward predetermined point, calculates a minimum vehicle speed using the periphery information; a shift position determination unit that determines a target shift position; and a downshift controller that, when the minimum vehicle speed is calculated, commences a downshift from a current shift position to the target shift position. Further, the downshift controller implements first control of performing multiple downshifts from the current shift position to the target shift position such that shift timing is provided at regular intervals, or second control of performing multiple downshifts such that rotational speeds of the engine after the respective downshifts become equal to each other.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: January 12, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroya Fujiwara, Shun Sato
  • Publication number: 20200339098
    Abstract: A braking force control apparatus includes: a prediction unit that predicts a time from a present time until a next start of the gear shift operation in the stepped automatic transmission based on a speed of the vehicle; an acquisition unit that acquires a state of a battery charged by a regenerative power generation of the regenerative generator; and a control unit that stops the regenerative power generation by the regenerative generator before the gear shift of the stepped automatic transmission is started, when it is determined, during the regenerative power generation by the regenerative generator, that the regenerative power generation by the regenerative power generator may be stopped due to the state of the battery during the gear shift operation of the stepped automatic transmission, based on a prediction result by the prediction unit and the state of the battery acquired by the acquisition unit.
    Type: Application
    Filed: April 9, 2020
    Publication date: October 29, 2020
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuki Matsumiya, Shun Sato, Hiroya Fujiwara, Masahiro Nishiu
  • Publication number: 20200262398
    Abstract: A braking force controller causes a first actuator unit to generate a target jerk when the target jerk is equal to or larger than a first jerk, causes the first actuator unit to generate the first jerk and a second actuator unit to generate a jerk obtained by subtracting the first jerk from the target jerk as an additional jerk when the target jerk is smaller than the first jerk and equal to or larger than the sum of the first jerk and a second jerk, and causes the first actuator unit to generate the first jerk and the second actuator unit to generate the second jerk as the additional jerk when the target jerk is smaller than the sum of the first jerk and the second jerk.
    Type: Application
    Filed: January 15, 2020
    Publication date: August 20, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shun SATO, Kazuki MIYAKE, Yoshihisa YAMADA, Akitsugu SAKAI, Kazumitsu SUGANO, Hiroya FUJIWARA, Hiromasa TAKAI
  • Publication number: 20200132188
    Abstract: A shift control device for a vehicle, includes: a minimum vehicle speed calculator that, when it is determined that a vehicle on traveling needs to decelerate before the vehicle arrives at a forward predetermined point, calculates a minimum vehicle speed using the periphery information; a shift position determination unit that determines a target shift position; and a downshift controller that, when the minimum vehicle speed is calculated, commences a downshift from a current shift position to the target shift position. Further, the downshift controller implements first control of performing multiple downshifts from the current shift position to the target shift position such that shift timing is provided at regular intervals, or second control of performing multiple downshifts such that rotational speeds of the engine after the respective downshifts become equal to each other.
    Type: Application
    Filed: October 24, 2019
    Publication date: April 30, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroya FUJIWARA, Shun SATO
  • Patent number: 9739220
    Abstract: A vehicle drive control device in a vehicle including an engine comprising a throttle valve and a supercharger with an air bypass valve changed from a closing side to an opening side when a closing speed of the throttle valve is higher than a speed determination value, the vehicle drive control device providing a torque-down control of the engine by operating the throttle valve to a closing side, wherein at the time of provision of the torque-down control of the engine in which the throttle valve is operated to the closing side when a rotation speed of the engine is equal to or greater than a predetermined rotation speed and a speed ratio of a torque converter is equal to or less than a predetermined value in a supercharged state, the throttle valve is caused to perform a closing operation at the closing speed lower than the speed determination value.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: August 22, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Wataru Matsubara, Hiroya Fujiwara, Akira Hino, Shuhei Ishikawa
  • Patent number: 9341263
    Abstract: Vehicle control device of vehicle including lockup clutch configured to directly couple between input/output rotating members of fluid power transmission device transmitting power of engine to automatic transmission, vehicle control device engaging lockup clutch when running state of vehicle in predetermined running state, vehicle control device providing lockup clutch pressure learning control of learning oil pressure of lockup clutch used in start-time lockup slip control in which lockup clutch placed in slip-engaged state toward engaged state at start of vehicle based on rotation speed of engine at time of engagement of lockup clutch, vehicle control device inhibiting engagement of lockup clutch when running state of vehicle in predetermined running state and also in second predetermined running state, vehicle control device engaging lockup clutch after running state of vehicle goes out of second predetermined running state, and providing lockup clutch pressure learning control in engaging process of locku
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: May 17, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Wataru Matsubara, Hiroya Fujiwara, Akira Hino, Shun Minaki, Naoto Tanaka
  • Publication number: 20150369361
    Abstract: Vehicle control device of vehicle including lockup clutch configured to directly couple between input/output rotating members of fluid power transmission device transmitting power of engine to automatic transmission, vehicle control device engaging lockup clutch when running state of vehicle in predetermined running state, vehicle control device providing lockup clutch pressure learning control of learning oil pressure of lockup clutch used in start-time lockup slip control in which lockup clutch placed in slip-engaged state toward engaged state at start of vehicle based on rotation speed of engine at time of engagement of lockup clutch, vehicle control device inhibiting engagement of lockup clutch when running state of vehicle in predetermined running state and also in second predetermined running state, vehicle control device engaging lockup clutch after running state of vehicle goes out of second predetermined running state, and providing lockup clutch pressure learning control in engaging process of locku
    Type: Application
    Filed: June 19, 2015
    Publication date: December 24, 2015
    Inventors: Wataru MATSUBARA, Hiroya FUJIWARA, Akira HINO, Shun MINAKI, Naoto TANAKA
  • Publication number: 20150369149
    Abstract: A vehicle drive control device in a vehicle including an engine comprising a throttle valve and a supercharger with an air bypass valve changed from a closing side to an opening side when a closing speed of the throttle valve is higher than a speed determination value, the vehicle drive control device providing a torque-down control of the engine by operating the throttle valve to a closing side, wherein at the time of provision of the torque-down control of the engine in which the throttle valve is operated to the closing side when a rotation speed of the engine is equal to or greater than a predetermined rotation speed and a speed ratio of a torque converter is equal to or less than a predetermined value in a supercharged state, the throttle valve is caused to perform a closing operation at the closing speed lower than the speed determination value.
    Type: Application
    Filed: June 16, 2015
    Publication date: December 24, 2015
    Inventors: Wataru MATSUBARA, Hiroya FUJIWARA, Akira HINO, Shuhei ISHIKAWA
  • Patent number: 8909441
    Abstract: A driving power source rotational speed control device is provided in a vehicle outputs power of a rotary driving power source via a continuously variable transmission as motive power, that changes the rotational speed of the rotary driving power source in association with changes in the vehicle speed when acceleration is requested. The control device includes: acceleration/deceleration state determination means determines whether the vehicle is accelerating or decelerating when acceleration is requested; and rotary driving power source rotational speed change setting means sets the change gradient of the rotary driving power source rotational speed to establish the association of the rotary driving power source rotational speed with changes in the vehicle speed when acceleration is requested.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: December 9, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroya Fujiwara, Akira Hino
  • Publication number: 20100235061
    Abstract: A driving power source rotational speed control device is provided in a vehicle outputs power of a rotary driving power source via a continuously variable transmission as motive power, that changes the rotational speed of the rotary driving power source in association with changes in the vehicle speed when acceleration is requested. The control device includes: acceleration/deceleration state determination means determines whether the vehicle is accelerating or decelerating when acceleration is requested; and rotary driving power source rotational speed change setting means sets the change gradient of the rotary driving power source rotational speed to establish the association of the rotary driving power source rotational speed with changes in the vehicle speed when acceleration is requested.
    Type: Application
    Filed: November 12, 2008
    Publication date: September 16, 2010
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroya Fujiwara, Akira Hino