Patents by Inventor Hiroyuki Oyanagi

Hiroyuki Oyanagi 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: 20220121441
    Abstract: Provided is a technique for analyzing connection compatibility between software applications such as OSS.
    Type: Application
    Filed: January 22, 2020
    Publication date: April 21, 2022
    Inventor: Hiroyuki OYANAGI
  • Patent number: 11296790
    Abstract: A transmission system formed by connecting sites through an optical fiber stores at least unique information of the transmission functional devices for each site, connection information, and information of wavelength resources that can be accommodated in the optical fiber in a facility DB as DB information D2. When the number of wavelengths of order information for requesting the number of wavelengths required for transmission of optical signals between sites is larger than the number of wavelengths that can be accommodated in the optical fiber of the DB information D2, the number of wavelengths for each of the transmission functional devices required for enabling the number of wavelengths of the order information D1 to be accommodated in the optical fiber is designed using the design unit. Designed numbers of wavelengths are configured in the corresponding transmission functional devices using the configuration unit.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: April 5, 2022
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Toshihiko Seki, Osamu Okino, Hiroyuki Oyanagi, Yuichiro Ishizuka
  • Patent number: 11201687
    Abstract: [Problem] In a disaggregated optical transmission system formed by connecting bases including transmission apparatuses having specifications of different vendors through an optical fiber, wavelength information is easily set in the transmission apparatuses at both bases of the optical fiber such that the required wavelength is assigned to the optical fiber.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: December 14, 2021
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Toshihiko Seki, Osamu Okino, Hiroyuki Oyanagi, Mizuto Nakamura
  • Patent number: 11196482
    Abstract: To appropriately monitor a transmission device in an optical transmission system. A monitoring apparatus 1 monitors a plurality of transmission devices 2 having different specifications. The monitoring apparatus 1 includes a monitoring unit 11 that monitors whether a failure occurrence or failure recovery is present in the plurality of transmission devices 2, an analyzing unit 12 that determines whether the failure occurrence or the failure recovery continues for a predetermined period, in a case where the failure occurrence or the failure recovery is present in the plurality of transmission devices 2, a control unit 13 that identifies a cause of the failure, using a plurality of pieces of warning information received from the plurality of transmission devices 2 only in a case where the failure occurrence continues for the predetermined period, and a notifying unit 14 that notifies a higher-level monitoring apparatus of warning information corresponding to the cause of the failure.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: December 7, 2021
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Osamu Okino, Hiroyuki Oyanagi, Yuichiro Ishizuka
  • Patent number: 11183962
    Abstract: There is provided a driving system including a motor; an inverter configured to drive the motor; a power storage device connected with the inverter via a power line; a smoothing capacitor mounted to the power line; a voltage sensor configured to detect a voltage of the smoothing capacitor; a current sensor configured to detect an electric current of each phase of the motor; and a control device configured to control the inverter, based on a detected value of the current sensor. The control device performs Fourier series expansion of a detected value of the voltage sensor to calculate an electrical first variation component of the voltage of the smoothing capacitor. The control device controls the inverter, such that the electrical first variation component of the voltage of the smoothing capacitor becomes equal to a value 0.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: November 23, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koji Irie, Hiroyuki Oyanagi, Toshifumi Yamakawa
  • Publication number: 20210359635
    Abstract: An electric motor control device includes an electronic control unit configured to perform switching control of a switching element of an inverter in PWM control mode when a modulation degree is less than a first predetermined value, perform switching control of the switching element in square wave control mode when the modulation degree is greater than or equal to a second predetermined value, and perform switching control of the switching element in intermediate control mode when the modulation degree is greater than or equal to the first predetermined value and less than the second predetermined value. The intermediate control mode uses a switching pattern in which, in a pulse pattern in the square wave control mode, a slit or a short pulse having the same width as the slit is formed according to whether a pulse is present at the time when a phase current crosses zero.
    Type: Application
    Filed: July 30, 2021
    Publication date: November 18, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshihiro SHAMOTO, Hiroyuki OYANAGI
  • Publication number: 20210328673
    Abstract: [Problem] In a transmission system of a disaggregation type formed by connecting, through an optical fiber, sites each including various transmission functional devices having specifications of different vendors, wavelength resources that can be accommodated in the optical fiber can be easily grasped and managed. [Solution] A transmission system formed by connecting sites ach including various transmission functional devices having specifications of different vendors through an optical fiber 15 stores at least unique information of the transmission functional devices for each site, connection information, and information of wavelength resources (the number of wavelengths) that can be accommodated in the optical fiber 15 in a facility DB 34 as DB information D2.
    Type: Application
    Filed: May 8, 2019
    Publication date: October 21, 2021
    Inventors: Toshihiko Seki, Osamu Okino, Hiroyuki Oyanagi, Yuichiro Ishizuka
  • Patent number: 11152884
    Abstract: An object is to suppress an increase in current variation amount of a power storage device. A control device sets an allowable modulation factor, based on a circuit characteristic of a DC part that is on a power storage device side of an inverter, such that a current variation amount of the power storage device becomes equal to or smaller than an allowable current variation amount, and sets switching pattern commands of a plurality of switching elements, based on a set allowable modulation factor.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: October 19, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshihiro Yamamoto, Hiroyuki Oyanagi
  • Publication number: 20210311467
    Abstract: To prevent a delay in detection of a fault and the like and to cut down a load on a management side while making transmission of data appropriate in consideration of importance and properties of each type of the data in a case in which a large amount of data is transmitted from management target apparatuses. Items with high priority are processed first, and items with a low priority are allowed to be thinned out in accordance with priority and a weight that a management system 10 defines for each data item, thereby reducing a load. The thinning out is performed by limiting the number of data items to be processed once in accordance with a load level. Data acquisition intervals and priority for each item are dynamically changed by reflecting the importance of the data of each item and a change thereof. Trends of data and the like distributed using telemetry are observed and are fed back to load control through control using an AI or a rule base.
    Type: Application
    Filed: August 1, 2019
    Publication date: October 7, 2021
    Inventors: Mizuto NAKAMURA, Osamu OKINO, Toshihiko SEKI, Hiroyuki OYANAGI
  • Patent number: 11114066
    Abstract: The operability of path management performed in units of apparatuses subdivided by disaggregation is improved. A path display apparatus 1 which displays a path configured for a plurality of optical network apparatuses subdivided by disaggregation includes a storage unit 10 that stores configuration information 11 indicating a section of each of the optical network apparatuses; a grouping unit 21 that identifies a high-speed port of a route apparatus (DIR: Direction) which is the optical network apparatus, and determines a first group to which optical network apparatuses divided by the identified high-speed port belong, based on the configuration information 11; and a display control unit 22 that displays, on a screen, a symbol of each of the optical network apparatuses, a symbol of the section, and a symbol of the first group.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: September 7, 2021
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Yuichiro Ishizuka, Osamu Okino, Hiroyuki Oyanagi
  • Patent number: 11108351
    Abstract: An electric motor control device includes an electronic control unit configured to perform switching control of a switching element of an inverter in PWM control mode when a modulation degree is less than a first predetermined value, perform switching control of the switching element in square wave control mode when the modulation degree is greater than or equal to a second predetermined value, and perform switching control of the switching element in intermediate control mode when the modulation degree is greater than or equal to the first predetermined value and less than the second predetermined value. The intermediate control mode uses a switching pattern in which, in a pulse pattern in the square wave control mode, a slit or a short pulse having the same width as the slit is formed according to whether a pulse is present at the time when a phase current crosses zero.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: August 31, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshihiro Shamoto, Hiroyuki Oyanagi
  • Patent number: 11057105
    Abstract: A monitoring device 1 includes an individual alarm reception unit 10 configured to receive individual alarms issued from a plurality of devices constituting an optical transmission network, a table 20 in which a search operator for searching for necessary information, that is information required for treating the individual alarms in the same manner when specifications of the individual alarms are different from each other, is associated with information included in the individual alarms, a search operator extraction unit 30 configured to extract the search operator using the information included in each of the individual alarms as a key, a rule 40 in which the search operator is associated with the necessary information; and a unified alarm information generation unit 50 configured to search the rule 40 using the search operator as a key, compare the information included in the individual alarms with the necessary information corresponding to the search operator, and add information, that is included in the
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: July 6, 2021
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Hiroyuki Oyanagi, Osamu Okino, Yuichiro Ishizuka
  • Publication number: 20210194617
    Abstract: [Problem] In a disaggregated optical transmission system formed by connecting bases including transmission apparatuses having specifications of different vendors through an optical fiber, wavelength information is easily set in the transmission apparatuses at both bases of the optical fiber such that the required wavelength is assigned to the optical fiber.
    Type: Application
    Filed: August 8, 2019
    Publication date: June 24, 2021
    Inventors: Toshihiko SEKI, Osamu OKINO, Hiroyuki OYANAGI, Mizuto NAKAMURA
  • Publication number: 20210075505
    Abstract: A monitoring device 1 includes an individual alarm reception unit 10 configured to receive individual alarms issued from a plurality of devices constituting an optical transmission network, a table 20 in which a search operator for searching for necessary information, that is information required for treating the individual alarms in the same manner when specifications of the individual alarms are different from each other, is associated with information included in the individual alarms, a search operator extraction unit 30 configured to extract the search operator using the information included in each of the individual alarms as a key, a rule 40 in which the search operator is associated with the necessary information; and a unified alarm information generation unit 50 configured to search the rule 40 using the search operator as a key, compare the information included in the individual alarms with the necessary information corresponding to the search operator, and add information, that is included in the
    Type: Application
    Filed: February 14, 2019
    Publication date: March 11, 2021
    Inventors: Hiroyuki OYANAGI, Osamu OKINO, Yuichiro ISHIZUKA
  • Publication number: 20210005163
    Abstract: [Problem] The operability of path management performed in units of apparatuses subdivided by disaggregation is improved. [Solution] A path display apparatus 1 which displays a path configured for a plurality of optical network apparatuses subdivided by disaggregation includes a storage unit 10 that stores configuration information 11 indicating a section of each of the optical network apparatuses; a grouping unit 21 that identifies a high-speed port of a route apparatus (DIR: Direction) which is the optical network apparatus, and determines a first group to which optical network apparatuses divided by the identified high-speed port belong, based on the configuration information 11; and a display control unit 22 that displays, on a screen, a symbol of each of the optical network apparatuses, a symbol of the section, and a symbol of the first group.
    Type: Application
    Filed: March 1, 2019
    Publication date: January 7, 2021
    Inventors: Yuichiro ISHIZUKA, Osamu OKINO, Hiroyuki OYANAGI
  • Publication number: 20200412445
    Abstract: To appropriately monitor a transmission device in an optical transmission system. A monitoring apparatus 1 monitors a plurality of transmission devices 2 having different specifications. The monitoring apparatus 1 includes a monitoring unit 11 that monitors whether a failure occurrence or failure recovery is present in the plurality of transmission devices 2, an analyzing unit 12 that determines whether the failure occurrence or the failure recovery continues for a predetermined period, in a case where the failure occurrence or the failure recovery is present in the plurality of transmission devices 2, a control unit 13 that identifies a cause of the failure, using a plurality of pieces of warning information received from the plurality of transmission devices 2 only in a case where the failure occurrence continues for the predetermined period, and a notifying unit 14 that notifies a higher-level monitoring apparatus of warning information corresponding to the cause of the failure.
    Type: Application
    Filed: March 6, 2019
    Publication date: December 31, 2020
    Inventors: Osamu OKINO, Hiroyuki OYANAGI, Yuichiro ISHIZUKA
  • Publication number: 20200304054
    Abstract: An object is to suppress an increase in current variation amount of a power storage device. A control device sets an allowable modulation factor, based on a circuit characteristic of a DC part that is on a power storage device side of an inverter, such that a current variation amount of the power storage device becomes equal to or smaller than an allowable current variation amount, and sets switching pattern commands of a plurality of switching elements, based on a set allowable modulation factor.
    Type: Application
    Filed: March 6, 2020
    Publication date: September 24, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshihiro YAMAMOTO, Hiroyuki OYANAGI
  • Publication number: 20200287496
    Abstract: An electric motor control device includes an electronic control unit configured to perform switching control of a switching element of an inverter in PWM control mode when a modulation degree is less than a first predetermined value, perform switching control of the switching element in square wave control mode when the modulation degree is greater than or equal to a second predetermined value, and perform switching control of the switching element in intermediate control mode when the modulation degree is greater than or equal to the first predetermined value and less than the second predetermined value. The intermediate control mode uses a switching pattern in which, in a pulse pattern in the square wave control mode, a slit or a short pulse having the same width as the slit is formed according to whether a pulse is present at the time when a phase current crosses zero.
    Type: Application
    Filed: February 19, 2020
    Publication date: September 10, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshihiro SHAMOTO, Hiroyuki OYANAGI
  • Publication number: 20200259445
    Abstract: There is provided a driving system including a motor; an inverter configured to drive the motor; a power storage device connected with the inverter via a power line; a smoothing capacitor mounted to the power line; a voltage sensor configured to detect a voltage of the smoothing capacitor; a current sensor configured to detect an electric current of each phase of the motor; and a control device configured to control the inverter, based on a detected value of the current sensor. The control device performs Fourier series expansion of a detected value of the voltage sensor to calculate an electrical first variation component of the voltage of the smoothing capacitor. The control device controls the inverter, such that the electrical first variation component of the voltage of the smoothing capacitor becomes equal to a value 0.
    Type: Application
    Filed: February 5, 2020
    Publication date: August 13, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koji IRIE, Hiroyuki OYANAGI, Toshifumi YAMAKAWA
  • Patent number: 10723233
    Abstract: A controller of an electrically powered vehicle includes an electronic control unit. The electronic control unit performs a switching control by a square wave control in a first switching mode when a rotation speed of the motor is equal to or higher than a first predetermined rotation speed. The electronic control unit performs the switching control by the square wave control in a second switching mode when the rotation speed of the motor is lower than the first predetermined rotation speed. The first predetermined rotation speed is a rotation speed lower than a first resonance region. The first switching mode is a mode of a switching pattern that suppresses LC resonance in the first resonance region. The second switching mode is a mode of a switching pattern that suppresses LC resonance in a second resonance region lower than the first predetermined rotation speed.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: July 28, 2020
    Assignee: DENSO CORPORATION
    Inventors: Yoshihiro Shamoto, Kazuhito Hayashi, Hiroyuki Oyanagi