Patents by Inventor Sang-Ut Ryu

Sang-Ut Ryu 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).

  • SYSTEMS AND METHODS FOR AUDIO SIGNAL PROCESSING
    Publication number: 20130282369
    Abstract: A method for signal level matching by an electronic device is described. The method includes capturing a plurality of audio signals from a plurality of microphones. The method also includes determining a difference signal based on an inter-microphone subtraction. The difference signal includes multiple harmonics. The method also includes determining whether a harmonicity of the difference signal exceeds a harmonicity threshold. The method also includes preserving the harmonics to determine an envelope. The method further applies the envelope to a noise-suppressed signal.
    Type: Application
    Filed: March 14, 2013
    Publication date: October 24, 2013
    Applicant: QUALCOMM Incorporated
    Inventors: Erik Visser, Lae-Hoon Kim, Jongwon Shin, Yinyi Guo, Sang-Ut Ryu, Andre Gustavo P. Schevciw