Patents by Inventor Weizhong Chen

Weizhong Chen 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).

  • Signal quality detector and methods thereof
    Patent number: 5721754
    Abstract: A signal quality detector (206) and analogous method thereof for operation on a signal having at least one predetermined frequency, the detector including a symbol detector (209), coupled to the signal, for providing a maximum discrete time Fourier transform value for a time period, the maximum discrete time Fourier transform value corresponding to one of the at least one predetermined frequency, an energy detector (217) for providing an energy estimate corresponding to a energy value of the signal over the time period, and a combinatorial logic (219) for combining the maximum discrete Fourier transform value and the energy estimate to provide a signal quality estimate or signal power or noise power.
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: February 24, 1998
    Assignee: Motorola, Inc.
    Inventor: Weizhong Chen