Patents by Inventor Larry L. DuCharme

Larry L. DuCharme 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).

  • Method and apparatus for detecting epileptic seizures
    Patent number: 5349962
    Abstract: A method and apparatus for accurately determining the onset or occurrence of an epileptic seizure is disclosed. The system includes an electroencephalograph (EEG) and an electromyograph (EMG) which provide signals to a signal processor. The signal processor operates to generate a digitized envelope waveform of the EEG waveform and the EMG waveform. If the waveforms all have an amplitude within a predetermined threshold, for a predetermined time interval, a CPU provides a signal to an output display indicative of a epileptic seizure.
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: September 27, 1994
    Assignee: University of Washington
    Inventors: Joan S. Lockard, Larry L. DuCharme, William C. Congdon, Jr., Douglas F. Kalk