Patents by Inventor Dong-Han WOO

Dong-Han WOO 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).

  • Patent number: 10562554
    Abstract: The present disclosure relates to a CPU module for processing railway signals. The CPU module includes a first input unit that receives an input signal from an external apparatus; a second input unit that receives a second input signal and a second instruction signal from a CPU checking module; a first comparison unit that compares the two input signals and outputs a resulting input signal if it is determined that the two signals are identical; a signal processing unit that converts the resulting input signal into a first instruction signal; and a second comparison unit that compares the first instruction signal with the second instruction signal and outputs a resulting instruction signal if it determines the two instruction signals are identical; and a control unit that sends a synchronization signal for controlling operation timing of the two comparison units, the signal processing unit, and the CPU checking module.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: February 18, 2020
    Assignee: LSIS CO., LTD.
    Inventors: Yong-Gee Cho, Dong-Han Woo, Yung Bang
  • Publication number: 20170259836
    Abstract: The present disclosure relates to a CPU module for processing railway signals, and more specifically to a CPU module for processing railway signals that controls operation timing of a first comparator, a signal processing unit and a second comparator.
    Type: Application
    Filed: November 15, 2016
    Publication date: September 14, 2017
    Inventors: Yong-Gee CHO, Dong-Han WOO, Yung BANG