Patents by Inventor Kou-Cheng Yeh

Kou-Cheng Yeh 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: 7957459
    Abstract: A symbol rate testing method based on signal waveform analysis is provided. A signal with a plurality of quasi bits 1 and a plurality of quasi bits 0 is received and sampled within an acquiring time. Maximum values of the quasi bits 1 are obtained by calculating sampling values of the signal at various sampling points. A minimum value among the maximum values is determined as a critical value. Whether a quasi bit 1 is a bit 1 or not is determined according to the critical value, and a total number of the bits 1 within the acquiring time is counted. Similarly, a number of the bits 0 within the acquiring time are also obtained. Thus, the symbol rate is obtained according to the above information.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: June 7, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Yu-Yi Cheng, Kou-Cheng Yeh, Chun-Chen Chen, Teng-Chun Wu
  • Publication number: 20080159164
    Abstract: A symbol rate testing method based on signal waveform analysis is provided. A signal with a plurality of quasi bits 1 and a plurality of quasi bits 1 is received and sampled within an acquiring time. Maximum values of the quasi bits 1 are obtained by calculating sampling values of the signal at various sampling points. A minimum value among the maximum values is determined as a critical value. Whether a quasi bit 1 is a bit 1 or not is determined according to the critical value, and a total number of the bits 1 within the acquiring time is counted. Similarly, a number of the bits 0 within the acquiring time are also obtained. Thus, the symbol rate is obtained according to the above information.
    Type: Application
    Filed: March 21, 2007
    Publication date: July 3, 2008
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yu-Yi Cheng, Kou-Cheng Yeh, Chun-Chen Chen, Teng-Chun Wu