Patents by Inventor Tomonobu Niwa

Tomonobu Niwa 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: 11330497
    Abstract: A communication controller (communication control apparatus) acquires, from an MEC node (NW information collection unit), cell transition information for each vehicle that moves in a plurality of cells formed by a plurality of base stations connected to the MEC node. The communication controller determines a vehicle group that is made up of a plurality of vehicles and is to be subjected to uplink transmission control for path-dependent data based on the acquired cell transition information. The communication controller further performs, with respect to the determined vehicle group, transmission control for limiting uplink transmission of path-dependent data to a portion of vehicles that belong to the vehicle group.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: May 10, 2022
    Assignee: KDDI CORPORATION
    Inventors: Tomonobu Niwa, Koutarou Ichikawa, Takeshi Kitahara
  • Publication number: 20200336965
    Abstract: A communication controller (communication control apparatus) acquires, from an MEC node (NW information collection unit), cell transition information for each vehicle that moves in a plurality of cells formed by a plurality of base stations connected to the MEC node. The communication controller determines a vehicle group that is made up of a plurality of vehicles and is to be subjected to uplink transmission control for path-dependent data based on the acquired cell transition information. The communication controller further performs, with respect to the determined vehicle group, transmission control for limiting uplink transmission of path-dependent data to a portion of vehicles that belong to the vehicle group.
    Type: Application
    Filed: July 8, 2020
    Publication date: October 22, 2020
    Inventors: Tomonobu NIWA, Koutarou ICHIKAWA, Takeshi KITAHARA
  • Patent number: 10693741
    Abstract: A network monitoring system comprising: a prediction unit configured to acquire information needed for detecting an abnormality in a virtual network function provided in a virtualization infrastructure, and predict performance information of a virtual network function that is to be newly provided and monitored; a generation unit configured to generate an abnormality determination rule to serve as a reference for determining whether or not actual performance information of a virtual network function falls within an allowed range that is set based on the predicted performance information; a determination unit configured to perform abnormality determination using the actual performance information of the virtual network function and the abnormality determination rule; and an output unit configured to output an abnormality notification if it is determined by the determination unit that there is an abnormality.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: June 23, 2020
    Assignee: KDDI CORPORATION
    Inventors: Tomonobu Niwa, Masanori Miyazawa, Michiaki Hayashi
  • Publication number: 20180183682
    Abstract: A network monitoring system comprising: a prediction unit configured to acquire information needed for detecting an abnormality in a virtual network function provided in a virtualization infrastructure, and predict performance information of a virtual network function that is to be newly provided and monitored; a generation unit configured to generate an abnormality determination rule to serve as a reference for determining whether or not actual performance information of a virtual network function falls within an allowed range that is set based on the predicted performance information; a determination unit configured to perform abnormality determination using the actual performance information of the virtual network function and the abnormality determination rule; and an output unit configured to output an abnormality notification if it is determined by the determination unit that there is an abnormality.
    Type: Application
    Filed: February 21, 2018
    Publication date: June 28, 2018
    Inventors: Tomonobu Niwa, Masanori Miyazawa, Michiaki Hayashi
  • Patent number: 9496979
    Abstract: Disclosed is a spatial switching apparatus having a plurality of input terminals, an input optical signal of a single wavelength being input to each of the plurality of the input terminals, and a plurality of output terminals an output optical signal of a single wavelength being output from each of the plurality of the output terminals. The apparatus includes a signal wavelength converting portion having an electric signal converting element converting the input optical signal into an electric signal and a variable wavelength laser, the signal wavelength converting portion using the variable wavelength laser to convert an electric signal converted by the electric signal converting element into an optical signal of an arbitrary wavelength; and a spatial switching portion having a plurality of first cyclic AWGs performing output from a plurality of output ports corresponding to wavelengths of a plurality of input signals input from the variable wavelength laser.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: November 15, 2016
    Assignees: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Ken-ichi Sato, Hiroshi Hasegawa, Tomonobu Niwa, Hiroshi Takahashi, Toshio Watanabe
  • Publication number: 20140178068
    Abstract: Disclosed is a spatial switching apparatus having a plurality of input terminals, an input optical signal of a single wavelength being input to each of the plurality of the input terminals, and a plurality of output terminals an output optical signal of a single wavelength being output from each of the plurality of the output terminals. The apparatus includes a signal wavelength converting portion having an electric signal converting element converting the input optical signal into an electric signal and a variable wavelength laser, the signal wavelength converting portion using the variable wavelength laser to convert an electric signal converted by the electric signal converting element into an optical signal of an arbitrary wavelength; and a spatial switching portion having a plurality of first cyclic AWGs performing output from a plurality of output ports corresponding to wavelengths of a plurality of input signals input from the variable wavelength laser.
    Type: Application
    Filed: August 2, 2012
    Publication date: June 26, 2014
    Applicants: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
    Inventors: Ken-ichi Sato, Hiroshi Hasegawa, Tomonobu Niwa, Hiroshi Takahashi, Toshio Watanabe