Patents by Inventor Hwa-Yong Yang

Hwa-Yong Yang 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).

  • Output driver
    Patent number: 7999579
    Abstract: An output driver is applicable to two or more interface standards. The output driver includes a pre-driver configured to generate pull-up control signals and pull-down control signals according to a logic value of data to be output and a target resistance, and adjust slew rates of the pull-up control signals and the pull-down control signals according to operation modes, and a driver configured to output the data in response to the pull-up and pull-down control signals.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: August 16, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Hyung-Dong Lee, Dong-Hwee Kim, Hwa-Yong Yang
  • SEMICONDUCTOR DEVICE WITH CONTROLLABLE DECOUPLING CAPACITOR
    Publication number: 20090115505
    Abstract: Semiconductor device with a controllable decoupling capacitor includes a decoupling capacitor connected between a power voltage terminal and a ground terminal and a switching unit configured to enable/disable the decoupling capacitor in response to a control signal. According to another aspect, a semiconductor device with a controllable decoupling capacitor includes multiple circuits, decoupling capacitors being connected in parallel to each of the circuits and switching units being configured to enable/disable the decoupling capacitors in response to control signals.
    Type: Application
    Filed: June 10, 2008
    Publication date: May 7, 2009
    Applicant: Hynix Semiconductor, Inc.
    Inventors: Hyung-Dong LEE, Jun-Ho LEE, Dong-Hwee KIM, Hwa-Yong YANG
  • OUTPUT DRIVER
    Publication number: 20090059712
    Abstract: An output driver is applicable to two or more interface standards. The output driver includes a pre-driver configured to generate pull-up control signals and pull-down control signals according to a logic value of data to be output and a target resistance, and adjust slew rates of the pull-up control signals and the pull-down control signals according to operation modes, and a driver configured to output the data in response to the pull-up and pull-down control signals.
    Type: Application
    Filed: June 30, 2008
    Publication date: March 5, 2009
    Inventors: Hyung-Dong Lee, Dong-Hwee Kim, Hwa-Yong Yang