Patents by Inventor Ronald A. Eirich

Ronald A. Eirich 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).

  • Heart rate detector
    Patent number: 4549551
    Abstract: An electronic heart sound detector in which a transducer detects the two primary heart beats of the heart cycle to produce a signal which is converted to a digital signal, filtered and the intervals between adjacent transitions determined and stored. The intervals are compared with previous values, successive values added if found substantially different and the stored or added values displayed if substantially the same as a previous correct value. The functions may be carried out by a microprocessor.
    Type: Grant
    Filed: November 18, 1983
    Date of Patent: October 29, 1985
    Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of National Defense
    Inventors: Walter R. Dyck, Ronald A. Eirich