Patents by Inventor Seung Kwon BAECK

Seung Kwon BAECK 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).

  • Apparatus and method for hiding and extracting data using pilot code sequence
    Patent number: 9905234
    Abstract: Methods and apparatuses for hiding and extracting data based on a pilot code sequence are provided. A data hiding method may include converting an input audio signal to a frequency domain, distorting phase information of the audio signal converted to the frequency domain based on a pilot code sequence representing data to be hidden, and converting the audio signal with the distorted phase information to a time domain and transmitting the audio signal converted to the time domain. The pilot code sequence may be a set of phase values corresponding to a bit value “0” or “1” of data.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: February 27, 2018
    Assignee: Electronics and Telecommunications Resarch Institute
    Inventors: Seung Kwon Baeck, Tae Jin Park, Jong Mo Sung, Yong Ju Lee, Tae Jin Lee, Jin Soo Choi
  • APPARATUS AND METHOD FOR HIDING AND EXTRACTING DATA USING PILOT CODE SEQUENCE
    Publication number: 20160293171
    Abstract: Methods and apparatuses for hiding and extracting data based on a pilot code sequence are provided. A data hiding method may include converting an input audio signal to a frequency domain, distorting phase information of the audio signal converted to the frequency domain based on a pilot code sequence representing data to be hidden, and converting the audio signal with the distorted phase information to a time domain and transmitting the audio signal converted to the time domain. The pilot code sequence may be a set of phase values corresponding to a bit value “0” or “1” of data.
    Type: Application
    Filed: February 23, 2016
    Publication date: October 6, 2016
    Inventors: Seung Kwon BAECK, Tae Jin PARK, Jong Mo SUNG, Yong Ju LEE, Tae Jin LEE, Jin Soo CHOI