Patents by Inventor Stephane Rivet

Stephane Rivet 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).

  • Fire or smoke detector with high false alarm rejection performance
    Patent number: 7760102
    Abstract: An apparatus for detecting a hazardous condition includes an optical module for measuring scattered light caused by the hazardous condition, a temperature sensor, a humidity sensor, and a processing unit coupled to receive signals from the optical module, the temperature sensor and the humidity sensor. The processing unit processes the signals to determine criteria to distinguish deceptive phenomena from a hazardous condition in order to limit false alarms. The processing unit uses the criteria for adjusting an alarm threshold value that is a function of a reference function, a function based on temperature criteria, a function based on at least one of the temperature criteria and a ratio criterion, and a function based on humidity criteria.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: July 20, 2010
    Assignee: Siemens AG
    Inventors: Gilles Chabanis, Philippe Mangon, Stephane Rivet
  • Fire or Smoke Detector with High False Alarm Rejection Performance
    Publication number: 20090051552
    Abstract: An apparatus for detecting a hazardous condition includes an optical module for measuring scattered light caused by the hazardous condition, a temperature sensor, a humidity sensor, and a processing unit coupled to receive signals from the optical module, the temperature sensor and the humidity sensor. The processing unit processes the signals to determine criteria to distinguish deceptive phenomena from a hazardous condition in order to limit false alarm. The processing unit is uses the criteria for adjusting an alarm threshold value that is a function of a reference function, a function based on temperature criteria, a function based on at least one of the temperature criteria and a ratio criterion, and a function based on humidity criteria.
    Type: Application
    Filed: May 23, 2006
    Publication date: February 26, 2009
    Applicant: Siemens S.A.S.
    Inventors: Gilles Chabanis, Philippe Mangon, Stephane Rivet