Patents by Inventor Ralf Noltemeyer

Ralf Noltemeyer 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).

  • Sensor apparatus including compensating circuit for temperature effects
    Patent number: 5818225
    Abstract: The sensor apparatus includes a sensor device having a control current (I.sub.H) flowing through it, a sensitivity and a temperature dependence of the control current characterized by a temperature coefficient, and a temperature compensating circuit for compensating temperature changes adversely effecting the sensitivity of the sensor device. The temperature compensating circuit includes a circuit portion which sets or adjusts the temperature coefficient of the control current(I.sub.H) according to changes in the temperature dependent internal resistance of the sensor device so that changes in negative temperature coefficients of other physical quantities determining the sensor sensitivity are compensated.
    Type: Grant
    Filed: December 2, 1996
    Date of Patent: October 6, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Miekley, Erich Rubel, Ralf Noltemeyer