Patents by Inventor Gaeil Ahn

Gaeil Ahn 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).

  • Method and apparatus for protecting legitimate traffic from DoS and DDoS attacks
    Patent number: 7882556
    Abstract: An apparatus for protecting legitimate traffic from DoS and DDoS attacks has a high-priority (505) and a low-priority (506) queue. Besides, a queue information table (402) has STT (Source-based Traffic Trunk) service queue information of a specific packet. A queue coordinator (502) updates the queue information table (502) based on a load of a provided STT and a load of the high-priority queue (505). A packet classifier (504) receives a packet from the network access unit (508), investigates an STT service queue of the packet from the queue information table (502), selectively transfers the packet to the high-priority (505) or the low-priority (506) queue and provides information on the packet to the queue coordinator (503). A buffer (507) buffers outputs of the high-priority (505) and the low-priority (506) queue and provides outputs to the network (509) to be protected.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: February 1, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Gaeil Ahn, Ki-Young Kim, Jong Soo Jang
  • Method and apparatus for protecting legitimate traffic from dos and ddos attacks
    Publication number: 20060041667
    Abstract: An apparatus for protecting legitimate traffic from DoS and DDoS attacks has a high-priority (505) and a low-priority (506) queue. Besides, a queue information table (402) has STT (Source-based Traffic Trunk) service queue information of a specific packet. A queue coordinator (502) updates the queue information table (502) based on a load of a provided STT and a load of the high-priority queue (505). A packet classifier (504) receives a packet from the network access unit (508), investigates an STT service queue of the packet from the queue information table (502), selectively transfers the packet to the high-priority (505) or the low-priority (506) queue and provides information on the packet to the queue coordinator (503). A buffer (507) buffers outputs of the high-priority (505) and the low-priority (506) queue and provides outputs to the network (509) to be protected.
    Type: Application
    Filed: March 28, 2003
    Publication date: February 23, 2006
    Inventors: Gaeil Ahn, Ki-Young Kim, Jong Soo Jang