Patents by Inventor Shiyu Zeng

Shiyu Zeng 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).

  • Programmable digital signal processor for demodulating digital television signals
    Patent number: 6577685
    Abstract: A phase-lock loop circuit in a demodulator includes a timing recovery block and a carrier recovery block. The demodulator for demodulates a digital signal including symbols. The phase-lock loop includes an integrator processing a block of N samples to produce an average of the N symbols, and means for supplying the average of the N symbols to the timing recovery block and the carrier recovery block every NT period, where T is a sample time interval.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: June 10, 2003
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Jay Bao, Shiyu Zeng