Patents by Inventor Cheng-Tai Yang

Cheng-Tai 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).

  • Auto-detection circuit and control method for video signals
    Patent number: 8009235
    Abstract: An auto-detection circuit for detecting video signals includes a reception end for receiving a video signal, a synchronization signal detector coupled to the reception end for generating a waveform according to voltage variation of the video signal, a peak value detector coupled to the synchronization signal detector for determining peak value of the wave form, a direct current voltage level switch coupled to the peak value detector for switching output voltage as first direct current voltage level or second direct current voltage level, and an output end coupled to the direct current voltage level switch for outputting the output voltage.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: August 30, 2011
    Assignee: Wistron Corporation
    Inventors: Po-Feng Huang, Hung-Hsi Chien, Hsin-Yuan Hsieh, Cheng-Tai Yang, Wei-Chen Chou
  • Auto-Detection Circuit and Control Method for Video Signals
    Publication number: 20080136968
    Abstract: An auto-detection circuit for detecting video signals includes a reception end for receiving a video signal, a synchronization signal detector coupled to the reception end for generating a waveform according to voltage variation of the video signal, a peak value detector coupled to the synchronization signal detector for determining peak value of the wave form, a direct current voltage level switch coupled to the peak value detector for switching output voltage as first direct current voltage level or second direct current voltage level, and an output end coupled to the direct current voltage level switch for outputting the output voltage.
    Type: Application
    Filed: February 8, 2007
    Publication date: June 12, 2008
    Inventors: Po-Feng Huang, Hung-Hsi Chien, Hsin-Yuan Hsieh, Cheng-Tai Yang, Wei-Chen Chou