Patents by Inventor Pi-Chang Ko

Pi-Chang Ko 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).

  • Cyclic step by step decoding method used in discrete fourier transform cyclic code of a communication system
    Patent number: 6779014
    Abstract: Discrete Fourier transformation is applied to an analog system so that a signal be transfering, the analog data can be corrected before being quantized and after being transferred and received. In the DFT cyclic decoder and the method of the same, a cyclic property of DFT code is used to induce a decoding way in the receiving end of a communication system. This way is used to design a basic decoding circuit and a fast decoding circuit structure. Since the decoding process is quick and the structure is simple so that the analog error correcting code is used widely.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: August 17, 2004
    Assignee: Chung-Shan Institute of Science & Technology
    Inventors: Yeun-Renn Ting, Erl-Huei Lu, Pi-Chang Ko, Hsien-Yu Chu