Patents by Inventor Jonathan M. Shaw

Jonathan M. Shaw 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).

  • Jitter-corrected spectrum analyzer
    Patent number: 6651016
    Abstract: An analog signal is digitized by an analog-to-digital (A/D) converter clocked by a periodically jittery clock signal. Elements of the digital data sequence (vector) output of the A/D converter are sorted into a set of smaller vectors according to clock signal jitter phase and each of the smaller vectors is then separately subjected to Fourier transform and time shift functions. The resulting vectors are then processed to produce an output vector representing the frequency spectrum of the analog signal.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: November 18, 2003
    Assignee: Credence Systems Corporation
    Inventors: Jonathan M. Shaw, John B. Shaw