Patents by Inventor Yang Choi

Yang Choi 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).

  • Publication number: 20060129810
    Abstract: A method and apparatus for evaluating the security of a subscriber network are provided. In the method and apparatus for evaluating the security of a subscriber network, pieces of information regarding a plurality of security functions provided by each of a plurality of network security devices connected to a network are collected, and the security functions are classified according to their types, purposes of use, and priority levels. Scores are given to the security functions using weights with reference to the classification results, and a security level for the network is determined by summing the scores of the security functions. Therefore, it is possible to objectively evaluate how secure a network is against cyber attacks launched internally or externally upon the network. In addition, it is possible to evaluate security functions provided by network security devices in a network in advance and enhance the performance of the security functions based on the evaluation results.
    Type: Application
    Filed: December 12, 2005
    Publication date: June 15, 2006
    Inventors: Youn Jeong, Yang Choi, Won Park, Seung Oh
  • Publication number: 20060109793
    Abstract: A network simulation apparatus and method for analyzing abnormal network traffic are provided. The network simulation apparatus includes: a traffic information collection unit, which collects traffic information in real time from a network; a simulator, which performs a simulation operation in a virtual network topology environment according to a predetermined scenario, the virtual network topology environment generating virtual traffic including a normal virtual packet modeled based on a normal traffic environment and an abnormal virtual packet modeled based on an abnormal traffic environment with a network traffic attack launched thereupon based on the collected real-time traffic information; and an interface unit, which provides the simulation operation results to a user. Accordingly, it is possible to effectively detect, analyze, and deal with abnormal network traffic that has occurred in a network to be managed.
    Type: Application
    Filed: May 6, 2005
    Publication date: May 25, 2006
    Inventors: Hwan Kim, Yang Choi, Dong Seo
  • Publication number: 20060021042
    Abstract: A device for an Internet-worm treatment and a system patch using a movable storage unit is provided.
    Type: Application
    Filed: October 22, 2004
    Publication date: January 26, 2006
    Inventors: Yang Choi, Dong Seo
  • Publication number: 20050246795
    Abstract: The invention relates to root-specific expansin gene to regulating root growth and obstacle-touching stress resistance in the plant, and more particularly to a root growth regulating gene, GmEXP1, isolated from soybean (Glycine max), an expansin polypeptide encoded by the gene and a method for enhancing root growth of plants by overexpression of the gene in the plants.
    Type: Application
    Filed: September 12, 2003
    Publication date: November 3, 2005
    Inventors: Jong Lee, Dong-Keun Lee, Ji Ahn, Sang-Kee Song, Yang Choi
  • Publication number: 20050060582
    Abstract: An apparatus and method for providing traceback connection using a connection redirection technique are provided. A packet blocking unit blocks an attack packet transmitted to the system and a first response packet output from the system in response to the attack packet, if a system attack sensing signal is received. A response packet generation unit generates a second response packet into which a watermark is inserted, in response to the attack packet, and transmits the second response packet to a system corresponding to the source address of the attack packet. A path traceback unit receives a detection packet containing transmission path information of the second response packet from a system existing on a transmission path of the second response packet, and based on the received detection packet, traces back the transmission path of the second response packet and identifies the location of the attacker system.
    Type: Application
    Filed: December 30, 2003
    Publication date: March 17, 2005
    Inventors: Yang Choi, Hwan Kim, Dong Seo, Sangho Lee
  • Publication number: 20050034194
    Abstract: The present invention relates to a gene controlling the flowering time of plants, and a method for manipulating the flowering time of plants using the gene. More particularly, the present invention relates to a LOV1 gene controlling the flowering time of plants, which is isolated from Arabidopsis thaliana, and also to a method for either delaying the flowering time of plants by overexpressing the LOV1 gene in the plants, or inducing the early flowering of the plants by repressing the expression of the LOV1 gene in the plants.
    Type: Application
    Filed: February 19, 2004
    Publication date: February 10, 2005
    Inventors: Jong Lee, Yun Kim, Eun Choi, So Yoo, Ji Ahn, Yang Choi