Patents by Inventor NORIHITO HAMA

NORIHITO HAMA 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).

  • Communication apparatus and communication method
    Patent number: 11552888
    Abstract: A communication device includes a processor. The processor updates, when a port which is received a packet is connected to a first path or a second path, an identifier assigned to the packet from a value according to the path to a first value or a second value. The processor learns a correspondence relationship between a destination address of the packet and a transmission port by flooding the packet, and determines the transmission port based on the correspondence relationship. The processor updates, when the transmission port is connected to the first path or the second path, the identifier assigned to the packet of which the transmission port is determined to a value according to the first path or the second path. The processor discards the packet of which the identifier is updated to the second value by the first process and the transmission port is connected to the second path.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: January 10, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Norihito Hama, Akihiro Hata, Toshihiro Ban
  • COMMUNICATION APPARATUS AND COMMUNICATION METHOD
    Publication number: 20210385158
    Abstract: A communication device includes a processor. The processor updates, when a port which is received a packet is connected to a first path or a second path, an identifier assigned to the packet from a value according to the path to a first value or a second value. The processor learns a correspondence relationship between a destination address of the packet and a transmission port by flooding the packet, and determines the transmission port based on the correspondence relationship. The processor updates, when the transmission port is connected to the first path or the second path, the identifier assigned to the packet of which the transmission port is determined to a value according to the first path or the second path. The processor discards the packet of which the identifier is updated to the second value by the first process and the transmission port is connected to the second path.
    Type: Application
    Filed: March 16, 2021
    Publication date: December 9, 2021
    Applicant: FUJITSU LIMITED
    Inventors: NORIHITO HAMA, AKIHIRO HATA, Toshihiro BAN