Patents by Inventor Woong-Tuk Yoo

Woong-Tuk Yoo 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: 20060193501
    Abstract: Provided is an iris pattern photographing apparatus can photograph an iris of a person clearly even in a low-level illumination without a complicated device by using a simple-structured short lens capable of photographing the iris in a predetermined distance, and making the person place his iris within the focal length of a digital camera easily; and it can be produced at a low cost and carried and set up conveniently. The apparatus includes a body case; a short lens digital camera, which is set up in the body case and includes a lens module and an imaging device; LED lamps, which are set up around a lens of the digital camera, for providing illumination; a power supplying means for supplying power source to the digital camera and the LED lamps; and a focal lens combined with a lens of the digital camera in the front for close contact photographing.
    Type: Application
    Filed: September 9, 2004
    Publication date: August 31, 2006
    Inventor: Woong-Tuk Yoo
  • Publication number: 20060147094
    Abstract: Provided is pupil detection method and shape descriptor extraction method for an iris recognition, iris feature extraction apparatus and method, and iris recognition system and method using the same.
    Type: Application
    Filed: September 8, 2004
    Publication date: July 6, 2006
    Inventor: Woong-Tuk Yoo