Patents by Inventor Eric Joseph Hoffman

Eric Joseph Hoffman 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 interface and sensor calibration technique
    Patent number: 7577539
    Abstract: Apparatus and an accompanying method for calibrating a sensor signal conditioner coupled to a sensor. The signal conditioner sensor enables relatively easy and precise calibration of bridge sensors without the use of a microprocessor. When mated to a resistive bridge sensor, the sensor signal conditioner can digitally calibrate offset and gain, with an option to calibrate offset and gain coefficients and linearity over temperature. A second order compensation can be enabled for temperature coefficients of gain, offset or bridge linearity.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: August 18, 2009
    Assignee: ZMD America Inc.
    Inventors: David Hubanks, Eric Joseph Hoffman, Frank George Cooper