Patents by Inventor Jae Sam Yoon

Jae Sam Yoon 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).

  • Acoustic model adaptation methods based on pronunciation variability analysis for enhancing the recognition of voice of non-native speaker and apparatus thereof
    Patent number: 8515753
    Abstract: The example embodiment of the present invention provides an acoustic model adaptation method for enhancing recognition performance for a non-native speaker's speech. In order to adapt acoustic models, first, pronunciation variations are examined by analyzing a non-native speaker's speech. Thereafter, based on variation pronunciation of a non-native speaker's speech, acoustic models are adapted in a state-tying step during a training process of acoustic models. When the present invention for adapting acoustic models and a conventional acoustic model adaptation scheme are combined, more-enhanced recognition performance can be obtained. The example embodiment of the present invention enhances recognition performance for a non-native speaker's speech while reducing the degradation of recognition performance for a native speaker's speech.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: August 20, 2013
    Assignee: Gwangju Institute of Science and Technology
    Inventors: Hong Kook Kim, Yoo Rhee Oh, Jae Sam Yoon
  • Acoustic Model Adaptation Methods Based on Pronunciation Variability Analysis for Enhancing the Recognition of Voice of Non-Native Speaker and Apparatus Thereof
    Publication number: 20090119105
    Abstract: The example embodiment of the present invention provides an acoustic model adaptation method for enhancing recognition performance for a non-native speaker's speech. In order to adapt acoustic models, first, pronunciation variations are examined by analyzing a non-native speaker's speech. Thereafter, based on variation pronunciation of a non-native speaker's speech, acoustic models are adapted in a state-tying step during a training process of acoustic models. When the present invention for adapting acoustic models and a conventional acoustic model adaptation scheme are combined, more-enhanced recognition performance can be obtained. The example embodiment of the present invention enhances recognition performance for a non-native speaker's speech while reducing the degradation of recognition performance for a native speaker's speech.
    Type: Application
    Filed: March 30, 2007
    Publication date: May 7, 2009
    Inventors: Hong Kook Kim, Yoo Rhee Oh, Jae Sam Yoon