Patents by Inventor Yuu Aoki

Yuu Aoki 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 relay apparatus, active system switching method, and communication relay control board
    Patent number: 9344326
    Abstract: A communication relay apparatus in which when an operation state of a first board is an active system and a fault in the first board is detected, a first transmission control circuit gives an instruction to an IF unit as to whether usage of a first transmission path is allowed and notifies a second transmission control circuit and a first communication state control unit that the fault is detected, the second transmission control circuit gives an instruction to the IF unit as to whether usage of a second transmission path is allowed, and when an evaluation is made to switch the operation state of the first board to the standby system, the first communication state control unit starts to take over the communication state of the communication data, which has passed through the first transmission path, to the second communication state control unit.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: May 17, 2016
    Assignee: NEC CORPORATION
    Inventors: Yuu Aoki, Toshiro Yamauchi
  • COMMUNICATION RELAY APPARATUS, ACTIVE SYSTEM SWITCHING METHOD, AND COMMUNICATION RELAY CONTROL BOARD
    Publication number: 20140301184
    Abstract: A communication relay apparatus in which when an operation state of a first board is an active system and a fault in the first board is detected, a first transmission control circuit gives an instruction to an IF unit as to whether usage of a first transmission path is allowed and notifies a second transmission control circuit and a first communication state control unit that the fault is detected, the second transmission control circuit gives an instruction to the IF unit as to whether usage of a second transmission path is allowed, and when an evaluation is made to switch the operation state of the first board to the standby system, the first communication state control unit starts to take over the communication state of the communication data, which has passed through the first transmission path, to the second communication state control unit.
    Type: Application
    Filed: August 3, 2012
    Publication date: October 9, 2014
    Inventors: Yuu Aoki, Toshiro Yamauchi