Patents by Inventor Il Ko

Il Ko 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 and apparatus for outputting audio signal
    Publication number: 20070120596
    Abstract: A method and an apparatus for outputting an audio signal are provided. The apparatus includes a power source; a compensator for compensating an input signal by adding the input signal to an offset value reciprocally proportional to a source voltage; a pulse width modulator for modulating an audio signal transmitted from the compensator; and an output stage for outputting the modulated audio signal. Accordingly, audio quality can be improved directly for a listener by compensating the input signal damaged by periodical voltage drops.
    Type: Application
    Filed: October 30, 2006
    Publication date: May 31, 2007
    Applicant: PULSUS Technologies
    Inventors: Jong Oh, Min Yang, Il Ko