Patents by Inventor Alfred J. Giers

Alfred J. Giers 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: 4015480
    Abstract: The present balancing method measures instantaneous analog unbalance representing signals and converts these signals into digital signals. The conversion involves multiplying the measured signals with reference values at least three times within each period of a reference signal. Said reference values are sine or cosine values of an oscillation having the same frequency as the unbalance vibration. The sine and cosine reference values are taken at points of time corresponding to the respective multiplication point of time. The products of all individual multiplications are separately summed for sine and cosine values and at least for one period of the reference signal. Thereafter mean values are formed from the two sums. The just mentioned signal processing steps are performed by digital circuits including digital multipliers, digital summing networks, digital mean value formation circuits, as well as a clock signal generator.
    Type: Grant
    Filed: November 26, 1975
    Date of Patent: April 5, 1977
    Assignee: Carl Schenck AG
    Inventor: Alfred J. Giers