Patents by Inventor Jerome Trescazes

Jerome Trescazes 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 for determining the energy of a knock signal for an internal combustion engine
    Patent number: 7263872
    Abstract: The invention relates to a method for determining the energy (KNKE) of the knock of an internal combustion engine, using an analog signal supplied by a sensor fixed to the engine. The inventive method includes the following steps: a) the analog signal is shaped, b) the analog signal is converted into a sequence of digital samples, c) the signal is subjected to digital filtering, and d) the signal is adjusted and e) integrated. According to the method: i) the shaping of the analog signal includes combining the signal with a continuous component (Vcnf) adapted to render the shaped signal a positive signal or a zero signal, and ii) the digital filtering is carried out by a band-pass filter with an infinite impulse response, the transfer function thereof including a zero for the zero frequencies.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: September 4, 2007
    Assignee: Siemens VDO Automotive
    Inventors: Bertrand Danet, Frédéric Galtier, Jérome Trescazes
  • Method for determining the energy of a knock signal for an internal combustion engine
    Publication number: 20070000306
    Abstract: The invention relates to a method for determining the energy (KNKE) of the knock of an internal combustion engine, using an analog signal supplied by a sensor fixed to the engine. The inventive method includes the following steps: a) the analog signal is shaped, b) the analog signal is converted into a sequence of digital samples, c) the signal is subjected to digital filtering, and d) the signal is adjusted and e) integrated. According to the method: i) the shaping of the analog signal includes combining the signal with a continuous component (Vcnf) adapted to render the shaped signal a positive signal or a zero signal, and ii) the digital filtering is carried out by a band-pass filter with an infinite impulse response, the transfer function thereof including a zero for the zero frequencies.
    Type: Application
    Filed: April 30, 2004
    Publication date: January 4, 2007
    Inventors: Bertrand Danet, Frederic Galtier, Jerome Trescazes