Patents by Inventor Chang-Hyon Park

Chang-Hyon Park 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).

  • Resistor-capacitor (RC) oscillator insensitive to process, voltage, and temperature variances
    Patent number: 7286022
    Abstract: There is provided a resistor-capacitor (RC) oscillator circuit insensitive to process, voltage, and temperature variances. The RC oscillator circuit includes a delay unit, a resistor unit, a capacitor, a resistor, and a first controller. The delay unit delays and outputs a signal received through an input terminal. The resistor unit is connected between an input terminal of the delay unit and a first node. The capacitor is connected between an output terminal of the delay unit and the first node. The resistor is connected between the input terminal of the delay unit and an output node. The first controller is connected between the output terminal of the delay unit and the output node, wherein a frequency signal is output through the output node.
    Type: Grant
    Filed: February 11, 2006
    Date of Patent: October 23, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hyon Park, Hong-Keun Yune
  • Resistor-capacitor (RC) oscillator insensitive to process, voltage, and temperature variances
    Publication number: 20060181359
    Abstract: There is provided a resistor-capacitor (RC) oscillator circuit insensitive to process, voltage, and temperature variances. The RC oscillator circuit includes a delay unit, a resistor unit, a capacitor, a resistor, and a first controller. The delay unit delays and outputs a signal received through an input terminal. The resistor unit is connected between an input terminal of the delay unit and a first node. The capacitor is connected between an output terminal of the delay unit and the first node. The resistor is connected between the input terminal of the delay unit and an output node. The first controller is connected between the output terminal of the delay unit and the output node, wherein a frequency signal is output through the output node.
    Type: Application
    Filed: February 11, 2006
    Publication date: August 17, 2006
    Inventors: Chang-Hyon Park, Hong-Keun Yune