Patents by Inventor Sung-Ahn Ko

Sung-Ahn Ko 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).

  • Character input device using bio radar unit and tilt sensor
    Patent number: 8199104
    Abstract: Disclosed herein is a character input device for a mobile device or a wearable terminal. A bio radar unit senses the positions of the fingers of a user. A tilt sensor senses the tilt of the hands of the user. A microprocessor calculates the final input information of the user by processing signals received from the bio radar unit and the tilt sensor. A wireless communication module transmits the final input information to the mobile device or the wearable terminal of the user. A speaker device outputs a feedback sound corresponding to the final input information of the user. The character input device is wearable on a wrist of the user. The bio radar unit transmits a signal, measures the distance between the character input device and a finger by measuring the strength of a reflected wave reflected from the finger with which the signal collides, and measures the angle of the finger related to activation.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: June 12, 2012
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Kyu-Ho Park, Ki-Woong Park, Sung-Ahn Ko
  • CHARACTER INPUT DEVICE USING BIO RADAR UNIT AND TILT SENSOR
    Publication number: 20080291158
    Abstract: Disclosed herein is a character input device for a mobile device or a wearable terminal. A bio radar unit senses the positions of the fingers of a user. A tilt sensor senses the tilt of the hands of the user. A microprocessor calculates the final input information of the user by processing signals received from the bio radar unit and the tilt sensor. A wireless communication module transmits the final input information to the mobile device or the wearable terminal of the user. A speaker device outputs a feedback sound corresponding to the final input information of the user. The character input device is wearable on a wrist of the user. The bio radar unit transmits a signal, measures the distance between the character input device and a finger by measuring the strength of a reflected wave reflected from the finger with which the signal collides, and measures the angle of the finger related to activation.
    Type: Application
    Filed: February 7, 2008
    Publication date: November 27, 2008
    Applicant: Korea Advanced Institute of Science & Technology
    Inventors: Kyu-Ho Park, Ki-Woong Park, Sung-Ahn Ko