Patents Assigned to Adaptive Digital Technologies, Inc.
  • Tone detection
    Patent number: 6914979
    Abstract: A DFT is used to compute the magnitude and phase of the frequencies desired to be detected in a frame of sampled data by performing 2 dot products for each such frequency. The two dot products are calculated using the samples in the frame and an equal number of equally spaced cosine and sine coefficients for each frequency to be detected.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: July 5, 2005
    Assignee: Adaptive Digital Technologies, Inc.
    Inventors: Scott David Kurtz, Brian Michael McCarthy, Sr.