Patents by Inventor Ui Ho Song

Ui Ho Song 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).

  • Magnetic amplifier
    Patent number: 5689408
    Abstract: This invention provides a small-sized magnetic amplifier with a simple construction.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: November 18, 1997
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Ui Ho Song
  • Clipper circuit for clipping an upper or lower portion of a uni-directional sinusoidal voltage signal
    Patent number: 5689204
    Abstract: A clipper circuit for clipping an upper portion and/or lower portion of a uni-directional sinusoidal voltage signal. The clipper circuit comprises a uni-directional buffer amplifier biased to either a (+) or (-) voltage for taking a sinusoidal voltage signal with only a (+) or (-) band value as an input voltage signal, a first Zener diode whose anode is connected to an output port of said uni-directional buffer amplifier and cathode is connected to a predetermined voltage source for clipping the lower portion of the input voltage signal as a predetermined setting value, and a second Zener diode whose cathode is connected to the output port of the uni-directional buffer amplifier and whose anode is grounded for clipping the upper portion of the input voltage signal as a predetermined setting value.
    Type: Grant
    Filed: December 28, 1995
    Date of Patent: November 18, 1997
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Ui Ho Song