Patents by Inventor Kiyoto Fujita

Kiyoto Fujita 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).

  • Packet switching apparatus
    Patent number: 6222839
    Abstract: The invention effectively avoids a CPU congestion in a packet switching apparatus. For this purpose, a packet switching apparatus of the invention comprises an AAL part connected with an ATM communication network where communication is performed in packets, a LAN control part connected to a LAN where communication is performed in frames, an IP part for translating a communication protocol of the ATM communication network and a communication protocol of the LAN communication network into each other, a congestion monitoring part for judging whether or not this IP part is in a congestion state, and an IP routing part for discarding a part or all of IP frames received by the LAN control part in case that this congestion monitoring part has judged that the IP part is in a congestion state.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: April 24, 2001
    Assignee: Oki Electric Industry, Co., LTD
    Inventors: Soko Nakazaki, Kiyoto Fujita