Patents by Inventor Dongsuk CHANG

Dongsuk CHANG 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).

  • SHORT DISTANCE USER RECOGNITION SYSTEM, AND METHOD FOR PROVIDING INFORMATION USING SAME
    Publication number: 20160063558
    Abstract: Disclosed are a system for identifying a user at a close range and an information providing system and method using the same, and more particularly to a close-range user identification system and an information providing system and method using the same, in which at least one user located at a close range visible to a client's naked eyes is searched and identified through a network or close-range communication directing, and opened information of the at least one identified user or a location-based advertisement is given to the at least one searched user.
    Type: Application
    Filed: March 31, 2014
    Publication date: March 3, 2016
    Inventors: Gwon Young KIM, Dong Min SHIN, Dongsuk CHANG, Chulhyun KIM, Young Bae YOU