Patents by Inventor Tai-Dong Ha

Tai-Dong Ha 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: 7035442
    Abstract: This invention relates to a user authenticating system and a method using aone-time fingerprint template. The system and the method according to the invention are improvements of the conventional user authentication based on the manner of comparing the fingerprint feature data only, for the purpose of preventing a false authentication by misusing fingerprint feature data, if exposed in the course of transfer thereof. In the system and the method according to the invention, fingerprint feature data of a user are combined with an OTT key transferred from a server. The combined result is encoded and transferred to an authenticating server. The authenticating server then confirms validity of the OTT key and authenticates the user based on the fingerprint. Thus, the present invention has an advantage of preventing a false authentication through hacking, etc., even if the OTT key is exposed to a network, because the OTT key is used only once for authentication.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: April 25, 2006
    Assignee: Secugen Corporation
    Inventors: Tai-Dong Ha, Jae-Hyun Jun, Woo-Seok Chang, Young-Mi Kang, Dong-Won Lee
  • Publication number: 20030152254
    Abstract: This invention relates to a user authenticating system and a method using aone-time fingerprint template. The system and the method according to the invention are improvements of the conventional user authentication based on the manner of comparing the fingerprint feature data only, for the purpose of preventing a false authentication by misusing fingerprint feature data, if exposed in the course of transfer thereof. In the system and the method according to the invention, fingerprint feature data of a user are combined with an OTT key transferred from a server. The combined result is encoded and transferred to an authenticating server. The authenticating server then confirms validity of the OTT key and authenticates the user based on the fingerprint. Thus, the present invention has an advantage of preventing a false authentication through hacking, etc., even if the OTT key is exposed to a network, because the OTT key is used only once for authentication.
    Type: Application
    Filed: January 17, 2003
    Publication date: August 14, 2003
    Inventors: Tai-Dong Ha, Jae-Hyun Jun, Woo-Seok Chang, Young-Mi Kang, Dong-Won Lee
  • Publication number: 20030085917
    Abstract: Disclosed is a method of providing a user with diverse UIs by downloading a UI of an application program from a web server in a web page format, and displaying the diversified UIs on a client's PC. The method according to the invention includes the steps of executing, by a user, the application program installed at the client's PC to request the web server to transmit a UI web page stored therein via the web browser module; transmitting, by the web server, the requested UI web page to the web browser module; and executing and displaying the transmitted UI web page, by the web browser module.
    Type: Application
    Filed: May 17, 2002
    Publication date: May 8, 2003
    Inventors: Woo-Seok Chang, Tai-Dong Ha, Young-Mi Kang, Dong-Won Lee