Patents by Inventor Tomoya HATANO

Tomoya HATANO 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: 20210297308
    Abstract: A communication device including a first communication device and a plurality of second communication devices in an optical access system in which a first communication device and the plurality of second communication devices perform communications with each other under a time division multiple access scheme includes an Ethernet controller configured to implement the communications as Ethernet (registered trademark) communications, and a link failure processing unit configured to output, in response to reception of a link failure notification for notifying occurrence of a link failure in the communications from the first communication device, a termination instruction to terminate data transmission when the communication device is performing the data transmission to the first communication device, and a start instruction to start the data transmission after recovery from the link failure when the communication device is not performing the data transmission to the first communication device.
    Type: Application
    Filed: July 5, 2019
    Publication date: September 23, 2021
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takamitsu TOCHINO, Takashi MITSUI, Tomoya HATANO
  • Publication number: 20210250238
    Abstract: An information management system includes a first information storage configured to store first attribute information regarding a communication device, a second information storage configured to store second attribute information regarding the communication device, a related information storage configured to store information representing a relationship between the first attribute information and the second attribute information, a detector configured to detect update, addition, or deletion of the first attribute information or the second attribute information, and an updater configured to output a command for the update or the like of the second attribute information associated with the first attribute information to the second information storage when the update or the like of the first attribute information is detected, and to output a command for the update or the like of the first attribute information associated with the second attribute information to the first information storage when the update or th
    Type: Application
    Filed: May 15, 2019
    Publication date: August 12, 2021
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Keita NISHIMOTO, Tomoya HATANO, Kota ASAKA
  • Publication number: 20210168475
    Abstract: An optical line terminal is provided with: an absorption unit that acquires first information of a type and a format that are dependent on a communication scheme and that converts the acquired first information into second information of a type and a format that are common to mutually different communication schemes; and a bandwidth allocation unit that determines bandwidth allocation of an upstream signal allocated to an optical network unit on the basis of the second information.
    Type: Application
    Filed: June 6, 2019
    Publication date: June 3, 2021
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Keita NISHIMOTO, Takashi MITSUI, Tomoya HATANO
  • Publication number: 20210168022
    Abstract: A first communication device in an optical access system in which the first communication device and a plurality of second communication devices communicate through a time division multiple access scheme includes: an Ethernet (registered trademark) controller configured to implement a communication as an Ethernet communication; a link failure detection unit configured to detect, when the plurality of second communication devices perform an initial connection to a network in the optical access system, whether a link failure has occurred based on collision detection of an optical signal transmitted by each of the plurality of second communication devices; and a signal processing unit configured to output, when the link failure detection unit detects that the link failure has not occurred, an initial connection start notification for causing initiation of a processing of the initial connection.
    Type: Application
    Filed: June 25, 2019
    Publication date: June 3, 2021
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takamitsu TOCHINO, Takashi MITSUI, Tomoya HATANO
  • Publication number: 20210051382
    Abstract: Transmitting devices used in an optical access system in which a plurality of the transmitting devices transmit an optical burst signal to a receiving device by time division multiple access, the transmitting devices each including an arithmetic processing unit, the arithmetic processing unit including: a data signal transmission instruction unit, the a data signal transmission instruction unit that outputs a first instruction for controlling transmission processing of a data signal on the basis of a requester's instruction; an optical signal control instruction unit that outputs a second instruction for controlling output processing of an optical signal on the basis of the requester's instruction; and an instruction output adjustment unit that adjusts a timing at which the first instruction is output and a timing at which the second instruction is output.
    Type: Application
    Filed: February 21, 2019
    Publication date: February 18, 2021
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takamitsu TOCHINO, Takashi MITSUI, Kota ASAKA, Tomoya HATANO