Patents by Inventor J. Dave Munneke

J. Dave Munneke 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).

  • Implantable medical device with autosensitivity algorithm for controlling sensing of cardiac signals
    Patent number: 6745076
    Abstract: A cardiac pacing system and method incorporate DSP processing and software algorithms for collecting signal amplitude data and noise data, and organizing the data for automatic checking of signal channel gain and signal detection sensitivity. Unfiltered signals are used to obtain values representative of maximum amplitude, which values are stored in a gain histogram, from which determination of the percentage of clipped signals can be made. Gain is adjusted by limiting clipping to a predetermined range of allowed clipping, to optimize use of the DSP range. The signals, both P waves and R waves for a dual chamber system, are also processed by DSP and parameters representing maximum amplitudes are stored in amplitude histograms. At the same time, noise is analyzed for respective windows of time following each ventricular event, and noise amplitude data is stored in noise histograms.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: June 1, 2004
    Assignee: Medtronic, Inc.
    Inventors: Peter Wohlgemuth, Henk A. Westendorp, Harry W. M. De Bruyn, J. Dave Munneke
  • Implantable medical device with autosensitivity algorithm for controlling sensing of cardiac signals
    Publication number: 20030097157
    Abstract: A cardiac pacing system and method incorporate DSP processing and software algorithms for collecting signal amplitude data and noise data, and organizing the data for automatic checking of signal channel gain and signal detection sensitivity. Unfiltered signals are used to obtain values representative of maximum amplitude, which values are stored in a gain histogram, from which determination of the percentage of clipped signals can be made. Gain is adjusted by limiting clipping to a predetermined range of allowed clipping, to optimize use of the DSP range. The signals, both P waves and R waves for a dual chamber system, are also processed by DSP and parameters representing maximum amplitudes are stored in amplitude histograms. At the same time, noise is analyzed for respective windows of time following each ventricular event, and noise amplitude data is stored in noise histograms.
    Type: Application
    Filed: November 16, 2001
    Publication date: May 22, 2003
    Inventors: Peter Wohlgemuth, Henk A. Westendorp, Harry W. M. De Bruyn, J. Dave Munneke