Patents by Inventor Yann P. Le Guillou

Yann P. Le Guillou 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).

  • Continuous-time sigma-delta analog-to-digital converter with non-invasive filter(s) for immunity preservation against interferers
    Patent number: 8159380
    Abstract: A continuous-time sigma-delta analog-to-digital converter (CV) comprises i) a signal path (SP) which includes at least one combiner (C1) for combining analog signals to be converted with analog feedback signals, at least one integrator (H1) for integrating the combined analog signals, a quantizer (Q) for converting the integrated signals into digital signals, and ii) a feedback path (FP) comprising at least a digital-to-analog converter (DAC) for converting the digital signals outputted by the quantizer (Q) into analog feedback signals intended for the combiner (C1). It also comprises at least one non-invasive filter (N1) associated to the integrator (H1), connected in parallel to the signal path (SP) at a chosen location and arranged to introduce a notch into its signal transfer function by suppressing unwanted analog interference signals having a chosen frequency band that corresponds to this notch.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: April 17, 2012
    Assignee: ST-Ericsson SA
    Inventors: Yann P. Le Guillou, Hussein Fakhoury
  • CONTINUOUS-TIME SIGMA-DELTA ANALOG-TO-DIGITAL CONVERTER WITH NON-INVASIVE FILTER(S) FOR IMMUNITY PRESERVATION AGAINST INTERFERERS
    Publication number: 20110156940
    Abstract: A continuous-time sigma-delta analog-to-digital converter (CV) comprises i) a signal path (SP) which includes at least one combiner (C1) for combining analog signals to be converted with analog feedback signals, at least one integrator (H1) for integrating the combined analog signals, a quantizer (Q) for converting the integrated signals into digital signals, and ii) a feedback path (FP) comprising at least a digital-to-analog converter (DAC) for converting the digital signals outputted by the quantizer (Q) into analog feedback signals intended for the combiner (C1). It also comprises at least one non-invasive filter (N1) associated to the integrator (H1), connected in parallel to the signal path (SP) at a chosen location and arranged to introduce a notch into its signal transfer function by suppressing unwanted analog interference signals having a chosen frequency band that corresponds to this notch.
    Type: Application
    Filed: November 10, 2005
    Publication date: June 30, 2011
    Applicant: ST-Ericsson SA
    Inventors: Yann P. Le Guillou, Hussein Fakhoury