Patents by Inventor Chi-Hao Yang

Chi-Hao 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).

  • Publication number: 20250077037
    Abstract: An image presenting method and a display device are disclosed. The method includes: defining one vision region in a display interface of a foldable display via a first application programming interface; detecting a physical status of the foldable display; dividing the vision region into a first sub-vision region and a second sub-vision region in response to that the physical status of the foldable display is a folded status; and presenting a first desktop image and a second desktop image in the first sub-vision region and the second sub-vision region respectively via a second application programming interface, wherein one of the first desktop image and the second desktop image includes a toolbar image, and a presenting position of the toolbar image in the first sub-vision region or the second sub-vision region is variable.
    Type: Application
    Filed: September 25, 2023
    Publication date: March 6, 2025
    Applicant: Acer Incorporated
    Inventors: Chi-Kang Lee, Chao-Kuang Yang, Shih-Hao Lin, Wen-Cheng Hsu, Hsi Lin
  • Publication number: 20250078707
    Abstract: An image presenting method and a display apparatus are provided. The method includes: presenting at least one virtual screen and a tool bar image in a display interface of a rollable display; detecting a physical status of the rollable display; and adjusting presenting positions of the tool bar image and the at least one virtual screen in the display interface in response to a change in the physical status.
    Type: Application
    Filed: October 17, 2023
    Publication date: March 6, 2025
    Applicant: Acer Incorporated
    Inventors: Chi-Kang Lee, Chao-Kuang Yang, Shih-Hao Lin, Wen-Cheng Hsu
  • Patent number: 6833875
    Abstract: A video decoder for decoding a composite video signal. The decoder includes an analog-to-digital converter (ADC), an input resampler, and a Y/C separator, all coupled in series. The ADC receives and digitizes the composite video signal to generate ADC samples. The input resampler receives and resamples the ADC samples with a first resampling signal to generate resampled video samples. The Y/C separator receives and separates the resampled video samples into luminance and chrominance components. The Y/C separator includes a delay element configured to receive the resampled video samples and provide a variable amount of delay. The variable amount of delay can be adjustable from line to line, and is typically based on an approximated duration of a video line.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: December 21, 2004
    Assignee: Techwell, Inc.
    Inventors: Feng Yang, Chi-Hao Yang, Feng Kuo, Chien-Chung Huang, Jao-Ching Lin
  • Patent number: 6377313
    Abstract: Techniques for enhancing edges in video signals while reducing the amounts of undershoots and overshoots. A video signal is processed to generate a first signal indicative of detected edges in the video signal. The first signal can be generated by lowpass filtering the video signal to generate a lowpass signal and subtracting the lowpass signal from a luminance signal that has been extracted from the video signal. The first signal is then processed with a “non-linear” transfer function to generate a second signal having enhanced edges. The second signal is used as the correction or enhancement signal, and is added to the lowpass signal to provide an output signal having enhanced edges with reduced or minimal amounts of undershoots and overshoots.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: April 23, 2002
    Assignee: Techwell, Inc.
    Inventors: Feng Yang, Chi-Hao Yang