Patents by Inventor Marco Fuhrman

Marco Fuhrman 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: 7855562
    Abstract: A sensor system (20) includes transducers (32, 34) each yielding an analog signal (37, 39) representing a parameter independently sensed by each of the transducers (32, 34). The signals (37, 39) are summed and the resulting transducer signal (46) is converted to a digital transducer signal (26) by a high resolution analog-to-digital converter (ADC) (48). Concurrently, one of the signals (37, 39) is subtracted from the other. The resulting difference signal (56) is converted to a digital difference signal (60) by a low resolution ADC (58). When the digital difference signal (60) is within a threshold window (78), a fault signal (28) indicates a normal condition (80) of the transducers (32, 34). When the signal (60) falls outside of the threshold window (78), a fault signal (28) indicates a fault condition (82) of the transducers. The transducer and fault signals (26, 28) are concurrently output from the sensor system (20).
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: December 21, 2010
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Liviu Chiaburu, Marco Fuhrman, Thomas D. Ohe
  • Publication number: 20090128160
    Abstract: A sensor system (20) includes transducers (32, 34) each yielding an analog signal (37, 39) representing a parameter independently sensed by each of the transducers (32, 34). The signals (37, 39) are summed and the resulting transducer signal (46) is converted to a digital transducer signal (26) by a high resolution analog-to-digital converter (ADC) (48). Concurrently, one of the signals (37, 39) is subtracted from the other. The resulting difference signal (56) is converted to a digital difference signal (60) by a low resolution ADC (58). When the digital difference signal (60) is within a threshold window (78), a fault signal (28) indicates a normal condition (80) of the transducers (32, 34). When the signal (60) falls outside of the threshold window (78), a fault signal (28) indicates a fault condition (82) of the transducers. The transducer and fault signals (26, 28) are concurrently output from the sensor system (20).
    Type: Application
    Filed: November 19, 2007
    Publication date: May 21, 2009
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Liviu Chiaburu, Marco Fuhrman, Tom D. Ohe