Patents by Inventor D. W. Carr

D. W. Carr 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).

  • Multiple mechanical resonator parametric device
    Publication number: 20020109494
    Abstract: A resonator device utilizes two small mechanical resonators that are electrostatically coupled. A first resonator receives an input signal near its resonant frequency, and the input signal and a second signal are summed and provided to a second resonator. The resonant frequency of the second resonator is approximately equal to the second signal frequency. A width of response of the amplifier is tuned by varying the pump voltage. Resonant frequencies of corresponding individual oscillators are tuned by adjusting bias voltages.
    Type: Application
    Filed: December 28, 2001
    Publication date: August 15, 2002
    Inventors: A. Olkhovets, D. W. Carr, Harold G. Craighead, J. M. Parpia