Patents by Inventor Hac-kwang Park

Hac-kwang Park 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 and apparatus for enhancing dialog using formants
    Publication number: 20050114119
    Abstract: A dialog enhancing method and apparatus to boost formants of dialog zones without changing sound zones includes calculating line spectrum pair (LSP) coefficients based on linear prediction coding (LPC) from an input signal, determining whether voice zones exist in the input signal on the basis of the calculated LSP coefficients, and extracting formants from the LSP coefficients according to whether the voice zones exist, and boosting the formants.
    Type: Application
    Filed: November 8, 2004
    Publication date: May 26, 2005
    Inventors: Yoon-hark Oh, Hac-kwang Park