Patents by Inventor Bernard Marteau

Bernard Marteau 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).

  • Circuit for processing the output signal from a resistive analog sensor, in particular for the fuel gauge of a motor vehicle, and systems fitted therewith
    Patent number: 5519397
    Abstract: The present invention relates to a circuit for processing the output signal from a resistive analog sensor, comprising firstly a digital filter, and secondly a module forming a digital-to-impedance converter, which filter and module are interposed in series between the output of the sensor and the input of an associated load, the digital-to-impedance converter presenting an output impedance that is variable as a function of the output signal from the digital filter, which is equivalent to the output resistance of the sensor.
    Type: Grant
    Filed: February 24, 1994
    Date of Patent: May 21, 1996
    Inventors: Michel Chapotot, Bernard Marteau, Vanni Poletto, Alberto Poma, Xavier Philippon
  • Circuit for controlling a ration meter
    Patent number: 5142412
    Abstract: A circuit for controlling a ratio meter, the circuit having an input stage for generating a digital signal representative of a parameter to be displayed, memory to enable the digital signal to be encoded on the basis of a pre-defined sine, cosine, or tangent function, with the memory being addressed by intermediate significant bits in the digital signal, and an interpolator for correcting the signal from the memory on the basis of the least significant bits of the digital signal.
    Type: Grant
    Filed: December 19, 1989
    Date of Patent: August 25, 1992
    Assignee: Jaeger
    Inventors: Herve Deschamps, Michel Granjoux, Bernard Marteau