Patents by Inventor Jae-Youn Song

Jae-Youn Song 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).

  • Patent number: 7330654
    Abstract: Disclosed is a point-to-point emulation method for operating an Ethernet passive optical network having an optical line terminal (OLT) and a plurality of optical network units (ONUs) each connected to the OLT. A tag Ethernet frame transmitted between the OLT and the ONUs includes a destination address (DA) field representing a destination address, a source address (SA) field representing a source address, and an LLID field in which a unique LLID assigned to an object of the ONU side is recorded. The LLIDs are assigned to ports of a bridge or an L2 (Layer 2) switch of the OLT side on a one-to-one basis. The OLT, upon receiving a tag Ethernet frame, outputs an LLID field-deleted Ethernet frame to the bridge or L2 switch port to which an LLID in the received frame is assigned. The bridge or the L2 switch transmits the Ethernet frame to a port to which a previously learned destination address is assigned.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: February 12, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Youn Song, Min-Hyo Lee, A-Jung Kim
  • Publication number: 20030190168
    Abstract: Disclosed is a point-to-point emulation method for operating an Ethernet passive optical network having an optical line terminal (OLT) and a plurality of optical network units (ONUs) each connected to the OLT. A tag Ethernet frame transmitted between the OLT and the ONUs includes a destination address (DA) field representing a destination address, a source address (SA) field representing a source address, and an LLID field in which a unique LLID assigned to an object of the ONU side is recorded. The LLIDs are assigned to ports of a bridge or an L2 (Layer 2) switch of the OLT side on a one-to-one basis. The OLT, upon receiving a tag Ethernet frame, outputs an LLID field-deleted Ethernet frame to the bridge or L2 switch port to which an LLID in the received frame is assigned. The bridge or the L2 switch transmits the Ethernet frame to a port to which a previously learned destination address is assigned.
    Type: Application
    Filed: April 3, 2003
    Publication date: October 9, 2003
    Inventors: Jae-Youn Song, Min-Hyo Lee, A-Jung Kim