Patents by Inventor Sang-Lak Yun

Sang-Lak Yun 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 for discriminating an audio signal as an ordinary vocal sound or musical sound
    Patent number: 5298674
    Abstract: An apparatus for discriminating a received audio signal as vocal sound or musical sound includes a pre-processing circuit 100 for separating the audio signal into a vocal frequency band signal and a musical frequency band signal, an intermediate decision circuit having a plurality of decision units for producing a plurality of vocal and musical decision signals, each decision unit distinguishing whether vocal or musical frequency band signal includes properties of voice or music, and a final decision circuit 600 for systematically analyzing the vocal and musical decision signals to produce a final decision signal for discriminating the audio signal as the vocal or musical sound.
    Type: Grant
    Filed: December 3, 1991
    Date of Patent: March 29, 1994
    Assignee: SamSung Electronics Co., Ltd.
    Inventor: Sang-Lak Yun