Patents by Inventor Fu-Yen Cheng

Fu-Yen Cheng 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).

  • Method for reducing audio noise of display and driving device thereof
    Patent number: 8115712
    Abstract: A method for reducing audio noise of a display is provided. A horizontal synchronization signal, a reference signal and a substrate voltage signal are generated. The reference signal has a preset width at high level status. The status transition of the substrate voltage signal is based on each scan line corresponding to the horizontal synchronization signal. In each period of the substrate voltage signal, the status transition of the raising and falling edges is based on the high level status of the reference signal, and the transition timings of the raising edges and the falling edges are advanced or delayed based on a reference value of the high level status of the reference signal.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: February 14, 2012
    Assignee: Novatek Microelectronics Corp.
    Inventors: Fu-Yen Cheng, Chia-Yin Chiang
  • METHOD FOR REDUCING AUDIO NOISE OF DISPLAY AND DRIVING DEVICE THEREOF
    Publication number: 20090086994
    Abstract: A method for reducing audio noise of a display is provided. A horizontal synchronization signal, a reference signal and a substrate voltage signal are generated. The reference signal has a preset width at high level status. The status transition of the substrate voltage signal is based on each scan line corresponding to the horizontal synchronization signal. In each period of the substrate voltage signal, the status transition of the raising and falling edges is based on the high level status of the reference signal, and the transition timings of the raising edges and the falling edges are advanced or delayed based on a reference value of the high level status of the reference signal.
    Type: Application
    Filed: November 30, 2007
    Publication date: April 2, 2009
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Fu-Yen Cheng, Chia-Yin Chiang