Patents by Inventor Yongick Chung

Yongick Chung 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).

  • METHOD OF INSERTING VECTOR INFORMATION FOR ESTIMATING VOICE DATA IN KEY RE-SYNCHRONIZATION PERIOD, METHOD OF TRANSMITTING VECTOR INFORMATION, AND METHOD OF ESTIMATING VOICE DATA IN KEY RE-SYNCHRONIZATION USING VECTOR INFORMATION
    Publication number: 20080112565
    Abstract: Disclosed are a method of inserting vector information for estimating voice data in a key re-synchronization period, a method of transmitting vector information, and a method of estimating voice data in a key re-synchronization period using vector information, capable of estimating the voice data that corresponds to a silent period occurring in a key re-synchronization process when an encrypted digital voice is transmitted in a unidirectional wireless communication environment. A transmitter side inserts accumulation information (i.e., vector information) of a voice change direction of the transmitted previous frame in a key re-synchronization frame, using a voice feature that draws a sine wave, when making the key re-synchronization frame for the re-synchronization, and transmits the key re-synchronization frame with the vector information inserted thereto. A receiver side estimates the voice data value in the key re-synchronization period using the accumulation information (i.e.
    Type: Application
    Filed: May 7, 2007
    Publication date: May 15, 2008
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: TaekJun Nam, Byeong-Ho Ahn, Ki-Hong Kim, Yongick Chung, Sang-Yi Yi