Patents by Inventor Chich-Yeuan Teng

Chich-Yeuan Teng 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: 5285280
    Abstract: A system and process are disclosed for cancelling ghosts in a sampled, received video signal. An extraction circuit extracts a received ghost cancelling reference signal from a received video signal transmitted through a multipath channel. The received ghost cancelling reference signal and an ideal ghost cancelling reference signal are inputted to a digital signal processor. Therein, the digital signal processor computes a nearby ghost tap coefficient signal by dividing the autocorrelation of an ideal GCR signal by the cross-correlation of the ideal and received GCR signals. A band of this tap coefficient signal above the upper cutoff frequency of the received video signal is filled with a constant, non-zero value. The sampled, received video signal is then filtered in a transversal filter with the filled tap coefficient signal.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: February 8, 1994
    Assignee: Industrial Technology Research Institute
    Inventors: Chich-Yeuan Teng, Ching-Shyang Lo