Patents by Inventor Robert L. Livezey, Jr.

Robert L. Livezey, Jr. 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).

  • Patent number: 4198676
    Abstract: An improved general purpose electronic thermometer comprising a platinum resistance sensor, a constant current source which impresses a current through said sensor, an amplifier which amplifies the voltage which results from the impressing of said current through said sensor--the resistance of which varies with temperature, an analog to digital converter which digitizes the signal from said amplifier and supplies the result to a microcomputer, said microcomputer which corrects for non-linearities in the resistance versus temperature relationship of the sensor using a ROM look-up table of corrections and an interpolation algorithm, and which outputs to a display either:the resulting temperature equivalent,a calculated rate of temperature change,a temperature equivalent representing the extreme of a temperature curve, defined as the temperature farthest removed from a determined initial temperature and in the direction of a determined initial significant change, derived by calculations and comparisons between c
    Type: Grant
    Filed: December 20, 1978
    Date of Patent: April 15, 1980
    Inventors: Tracy L. Varnum, Robert L. Livezey, Jr.