Patents by Inventor Jyunichi Shimada

Jyunichi Shimada 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).

  • L2 switch
    Patent number: 7522525
    Abstract: In an L2 switch having a VLAN function for configuring a layer 2 network in a star topology, a mesh topology, a ring topology, or the like, a VLAN functional portion maps a frame to a predetermined VLAN, a frame classifying portion assigns to the frame a first tag indicating a priority, and a policing portion assigns to the frame a second tag indicating whether or not the frame can be discarded. Also, an OAM monitor inserts a monitoring frame to the VLAN.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: April 21, 2009
    Assignee: Fujitsu Limited
    Inventors: Hironori Mieno, Youichi Konuma, Jyunichi Shimada, Koichi Saiki, Takashi Okuda, Takanori Sasaki
  • L2 switch
    Publication number: 20050163132
    Abstract: In an L2 switch having a VLAN function for configuring a layer 2 network in a star topology, a mesh topology, a ring topology, or the like, a VLAN functional portion maps a frame to a predetermined VLAN, a frame classifying portion assigns to the frame a first tag indicating a priority, and a policing portion assigns to the frame a second tag indicating whether or not the frame can be discarded. Also, an OAM monitor inserts a monitoring frame to the VLAN.
    Type: Application
    Filed: March 10, 2005
    Publication date: July 28, 2005
    Inventors: Hironori Mieno, Youichi Konuma, Jyunichi Shimada, Koichi Saiki, Takashi Okuda, Takanori Sasaki