Patents by Inventor Robert C. Thor

Robert C. Thor 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: 4591857
    Abstract: The linear frequency modulation (LFM) signal processor may be programmed to be a matched filter for any pulse compression (PC) ratio less than or equal to the square of the number of bandpass filters. The processor is implemented by using a fast Fourier transform (FFT) for the filter bank. The implementation shown assumes digital processing at baseband using in-phase and quadrature (I and Q) channels and an FFT for the filter bank. The I and Q channels are fed through a sidelobe filter, a short input tapped delay line, and a set of M complex multipliers to the FFT. The FFT outputs are connected to a long tapped delay line through a second set of complex multipliers whose outputs are summed in the long tapped delay line summer.
    Type: Grant
    Filed: July 11, 1983
    Date of Patent: May 27, 1986
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Robert C. Thor