Patents by Inventor Lae Chang Kim

Lae Chang Kim 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).

  • Woofer having ornamental flashing lights
    Patent number: 6563929
    Abstract: A woofer that is capable of producing a flashing light show depending upon the volume and frequency of the sounds emitted thereby. The woofer includes at least one light emitting diode and a control circuit that are conveniently mounted on a printed circuit board at the center of the woofer at an inconspicuous location below a transparent dust cover so as to achieve a compact configuration without effecting the aesthetic appearance of the woofer. The woofer also includes a magnetic structure having at least one permanent magnet and at least one electromagnetic voice coil that is adapted to move in first and opposite directions towards and away from the permanent magnet depending upon the changing polarities of an alternating current that is supplied to the electromagnetic voice coil.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: May 13, 2003
    Assignee: American Hi-Fi Industrial 26, Inc.
    Inventor: Lae Chang Kim
  • WOOFER HAVING ORNAMENTAL FLASHING LIGHTS
    Publication number: 20030031330
    Abstract: A woofer that is capable of producing a flashing light show depending upon the volume and frequency of the sounds emitted thereby. The woofer includes at least one light emitting diode and a control circuit that are conveniently mounted on a printed circuit board at the center of the woofer at an inconspicuous location below a transparent dust cover so as to achieve a compact configuration without effecting the aesthetic appearance of the woofer. The woofer also includes a magnetic structure having at least one permanent magnet and at least one electromagnetic voice coil that is adapted to move in first and opposite directions towards and away from the permanent magnet depending upon the changing polarities of an alternating current that is supplied to the electromagnetic voice coil.
    Type: Application
    Filed: August 10, 2001
    Publication date: February 13, 2003
    Inventor: Lae Chang Kim