Patents by Inventor Laurent Neveux

Laurent Neveux 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).

  • Adjustment of the detection, transmission and/or reception parameters of an RFID reader as a function of ambient electromagnetic noise
    Patent number: 7142815
    Abstract: There is described a method for adjusting the detection, transmission and/or reception parameters (DET, GTx, GRx) of a radiofrequency reader (10) of an electronic radiofrequency identification system as a function of the ambient electromagnetic noise. This method includes at least one step of measuring, via the radiofrequency reader, the ambient electromagnetic noise level, and a step of adjusting the detection, transmission and/or reception parameters of the radiofrequency reader on the basis of the measured ambient electromagnetic noise level. Preferably, this method further includes a step of measuring the response of a reference transponder (30) placed at least temporarily in the interrogation field of the antenna (20) associated with the radiofrequency reader, this reference transponder (30) having similar characteristics to the characteristics of the transponders to be identified.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: November 28, 2006
    Assignee: EM Microelectronics-Marin SA
    Inventors: Olivier Desjeux, Laurent Neveux, Saak Dertadian
  • Reader or transmitter and/or receiver comprising a shielded antenna
    Patent number: 7098866
    Abstract: The reader or transmitter and/or receiver (22) includes a sheathed antenna formed of two groups of turns or coils (6, 8, 9; 16, 17). The first group of turns or coils forms a sheathed antenna. The second group includes two coils (16, 17) arranged between the central coil (6) and respectively the two end coils (8, 9) of the first group. The second group of coils is powered in phase quadrature relative to the first group of coils, the set of coils being arranged so as to obtain a magnetic field (H) whose amplitude (A) is approximately constant along the central axis (24) of the antenna inside the overall inner volume of the latter.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: August 29, 2006
    Assignee: EM Microelectonics-Marin SA
    Inventors: Olivier Desjeux, Laurent Neveux
  • Reader or transmitter an/or receiver comprising a shielded antenna
    Publication number: 20060044208
    Abstract: The reader or transmitter and/or receiver (22) includes a sheathed antenna formed of two groups of turns or coils (6, 8, 9; 16, 17). The first group of turns or coils forms a sheathed antenna. The second group includes two coils (16, 17) arranged between the central coil (6) and respectively the two end coils (8, 9) of the first group. The second group of coils is powered in phase quadrature relative to the first group of coils, the set of coils being arranged so as to obtain a magnetic field (H) whose amplitude (A) is approximately constant along the central axis (24) of the antenna inside the overall inner volume of the latter.
    Type: Application
    Filed: October 31, 2002
    Publication date: March 2, 2006
    Applicant: EM Microelectronic-Marin S A
    Inventors: Olivier Desjeux, Laurent Neveux
  • Adjustment of the detection, transmission and/or reception parameters of an RFID reader as a function of ambient electromagnetic noise
    Publication number: 20040137844
    Abstract: There is described a method for adjusting the detection, transmission and/or reception parameters (DET, GTx, GRx) of a radiofrequency reader (10) of an electronic radiofrequency identification system as a function of the ambient electromagnetic noise. This method includes at least one step of measuring, via the radiofrequency reader, the ambient electromagnetic noise level, and a step of adjusting the detection, transmission and/or reception parameters of the radiofrequency reader on the basis of the measured ambient electromagnetic noise level. Preferably, this method further includes a step of measuring the response of a reference transponder (30) placed at least temporarily in the interrogation field of the antenna (20) associated with the radiofrequency reader, this reference transponder (30) having similar characteristics to the characteristics of the transponders to be identified.
    Type: Application
    Filed: August 27, 2003
    Publication date: July 15, 2004
    Applicant: EM MICROELECTRONIC - MARIN SA
    Inventors: Olivier Desjeux, Laurent Neveux, Saak Dertadian