Patents by Inventor Keith Fehl

Keith Fehl 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).

  • Multi-level pulser for an ultrasound system
    Publication number: 20070014190
    Abstract: A multi-level pulser for an ultrasound system is provided that receives a reference voltage input signal, a shading signal, and a control signal. The pulser produces an output signal for driving a transducer, with the output signal based on the reference voltage signal, the shading signal, and the control signal. The output signal includes a continuous wave (CW) signal interleaved with a pulse wave (PW) signal. The PW signal may have multiple levels of amplitude.
    Type: Application
    Filed: July 14, 2005
    Publication date: January 18, 2007
    Inventors: Keith Fehl, Yoichi Suzuki