Patents by Inventor Ju-Sup Lee

Ju-Sup Lee 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).

  • VLAN data switching method using ARP packet
    Patent number: 7088689
    Abstract: A virtual local area network(VLAN) data switching method uses an address resolution protocol(ARP) packet in VLAN constructed with one internet protocol(IP) subnet. This is achieved by making a source host broadcast an ARP request packet, making a Proxy ARP server prepare to transmit a virtual ARP request packet wherein the Proxy ARP server receives the ARP request packet, and making a destination host transmit an ARP response packet in direct to the source host through a switching unit wherein the destination host receives the virtual ARP request packet. Data transfer delay time for the data exchanged between different VLANs as well as the router load occurring in handling the traffic between VLANs are reduced, so that data handling performance for high-capacity multimedia data transferred on VLANs is improved.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: August 8, 2006
    Assignee: LG Electronics Inc.
    Inventors: Ju-Sup Lee, Jeong Hyun Choi
  • VLAN data switching method using ARP packet
    Publication number: 20020080800
    Abstract: A virtual local area network(VLAN) data switching method uses an address resolution protocol(ARP) packet in VLAN constructed with one internet protocol(IP) subnet. This is achieved by making a source host broadcast an ARP request packet, making a Proxy ARP server prepare to transmit a virtual ARP request packet wherein the Proxy ARP server receives the ARP request packet, and making a destination host transmit an ARP response packet in direct to the source host through a switching unit wherein the destination host receives the virtual ARP request packet. Data transfer delay time for the data exchanged between different VLANs as well as the router load occurring in handling the traffic between VLANs are reduced, so that data handling performance for high-capacity multimedia data transferred on VLANs is improved.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 27, 2002
    Applicant: LG ELECTRONICS INC.
    Inventors: Ju-Sup Lee, Jeong Hyun Choi