Patents by Inventor Terry W. Copley

Terry W. Copley 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).

  • Digital block processor for processing a plurality of transmission channels in a wireless radiotelephony system
    Patent number: 5367539
    Abstract: A digital block receiver system, in a cellular/wireless FM radiotelephony system, receives and heterodyne a block of cellular/wireless receive channels to a very low block IF signal by analog processing. This block IF signal is applied to a precision high speed A/D converter and converted to a digitized time series. A window function is applied to the digitized time series and a high speed FFT is applied to frequency isolate the individual channels. The active channels are digitally processed by a DSP to recover the FM channel modulation.
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: November 22, 1994
    Assignee: AT&T Bell Laboratories
    Inventor: Terry W. Copley