Patents by Inventor Dean T. Miller

Dean T. Miller 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).

  • Signal filter method and apparatus
    Patent number: 4453218
    Abstract: A signal filter method and apparatus for removing portions of a signal indicative of erroneous data, an exemplary apparatus including means for receiving the signal, means for adjusting a threshold by increasing the threshold a first predetermined amount when the signal is in a predetermined relationship with the threshold and for decreasing the threshold a second predetermined amount when the signal is in a second predetermined relationship with the threshold, and means for comparing the signal with the adjusted threshold and for transmitting the signal if the signal bears a first predetermined relationship to the threshold. Disclosed herein are digital and analog implementations of the signal filter method and apparatus, particularly suited for use with catheter-type oximeter apparatus.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: June 5, 1984
    Assignee: Oximetrix, Inc.
    Inventors: Johnie M. Sperinde, Stanley D. Goldring, Dean T. Miller