Patents by Inventor Karl W. Bonfig

Karl W. Bonfig 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 measurements of a characteristic of an object using a sensed signal and an auxiliary variable signal applied to the object
    Patent number: 4912660
    Abstract: An apparatus for measuring a measurable characteristic of an object includes a sensor element which emits an analog sensor output signal, the sensor output signal corresponding to the measurable characteristic of the object, an analog/digital converter for converting analog signals from the sensor element into digital output signals, a processor receiving the digital output signals and supplying a control signal to the controllable auxiliary variable generator. The controllable auxiliary variable generator is controlled by the control signal emitted by the processor, and the auxiliary variable signal is interrupted for a selected time span after each measuring interval.
    Type: Grant
    Filed: December 15, 1987
    Date of Patent: March 27, 1990
    Assignees: Ulrich Kuipers, Michael Denker, Karl Walter Bonfig
    Inventors: Ulrich Kuipers, Michael Denker, Karl W. Bonfig