Patents by Inventor Dennis Willen

Dennis Willen 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).

  • Estimating Noise at One Frequency by Sampling Noise at Other Frequencies
    Publication number: 20080059072
    Abstract: A method, apparatus and computer program for improving the signal-to-noise ratio of a signal S(t), S(t) containing Signal and noise, are disclosed. A measurement of S(t) at a frequency-of-interest is obtained. Noise measurements of S(t) at a plurality of noise frequencies where the Signal portion of S(t) is expected to be small are obtained. The noise at the frequency-of-interest is estimated using the noise measurements at the plurality of noise frequencies. The estimated noise is subtracted from the measurement of S(t) at the frequency-of-interest.
    Type: Application
    Filed: January 17, 2006
    Publication date: March 6, 2008
    Inventors: Dennis Willen, Xinyou Lu