Patents by Inventor Derek Van Westrum

Derek Van Westrum 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: 7856329
    Abstract: A method of processing data acquired by under-sampling a chirped, sinusoidal waveform comprises complex-heterodyning the under-sampled data with a chirped signal having characteristics similar to the sinusoidal waveform to generate a demodulated signal and analyzing the demodulated signal to determine characteristics of the sinusoidal waveform.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: December 21, 2010
    Inventors: Tim Niebauer, Aaron Schiel, Derek Van Westrum
  • Publication number: 20060130575
    Abstract: The present invention provides devices and methods for reducing or eliminating sources of systematic errors in the measurement of absolute gravity or gravity field gradients; specifically, an improved test mass for an interferometer is disclosed that reduces the influence of nearby electromagnetic fields on a freefalling test mass.
    Type: Application
    Filed: December 22, 2005
    Publication date: June 22, 2006
    Inventors: Timothy Niebauer, Ryan Billson, Fred Klopping, Jess Valentine, Derek van Westrum