Patents by Inventor Jae-Hee WON

Jae-Hee WON 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).

  • Power supply circuit including voltage regulator and headphone driving circuit employing the same
    Patent number: 8452025
    Abstract: A power supply circuit including a voltage regulator and a headphone driving circuit employing the same are disclosed. In accordance with the present invention, the power supply circuit may provide stable power supply to the amplifier since the power supply circuit generates the constant voltage +Vreg and the constant voltage ?Vreg from +VDD robust to stronger than a power noise, and the balanced signal path for isolating the noise of the input signal to be amplified is not required, thereby simplifying the constitution of the circuit.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: May 28, 2013
    Assignee: Neofidelity, Inc.
    Inventors: Yeongha Choi, Jin Ho Oh, Min Soo Kim, Jae-Hee Won
  • POWER SUPPLY CIRCUIT INCLUDING VOLTAGE REGULATOR AND HEADPHONE DRIVING CIRCUIT EMPLOYING THE SAME
    Publication number: 20110222702
    Abstract: A power supply circuit including a voltage regulator and a headphone driving circuit employing the same are disclosed.
    Type: Application
    Filed: March 7, 2011
    Publication date: September 15, 2011
    Applicant: NEOFIDELITY, INC.
    Inventors: Yeongha CHOI, Jin Ho OH, Min Soo KIM, Jae-Hee WON