Patents by Inventor Matteo Frigerio

Matteo Frigerio 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 of synchronizing an independent data device of a wireless data communications system on an incident pulsed signal of the ultra wide band type, and corresponding independent data device
    Patent number: 7254202
    Abstract: An incident signal contains a preamble including a training sequence having a series of pulses whose polarity and time shifts are defined by respective polarity code and time-hopping code. A method includes a digital cross-correlation of the received signal with the training sequence. The cross-correlation algebraically sums in accordance with the polarity code windows of the received signal. The starting points of the windows are determined by the time-hopping code. The cross-correlation further includes detecting the end point of the preamble from the result of the digital cross-correlation. When the size of the receiving buffer, i.e., the size of the window is smaller than the number N of samples of each replica of the training sequence, it is particularly advantageous that the digital cross-correlation be performed iteratively in a block-by-block fashion. The computation of each block is split into M slices which are computed by algebraically summing windows N/M samples long.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: August 7, 2007
    Assignee: STMicroelectronics N.V.
    Inventors: Chiara Cattaneo, Nils Rinaldi, Matteo Frigerio, Régis Cattenoz
  • Method of synchronizing an independent data device of a wireless data communications system on an incident pulsed signal of the ultra wide band type, and corresponding independent data device
    Publication number: 20040240597
    Abstract: An incident signal contains a preamble including a training sequence having a series of pulses whose polarity and time shifts are defined by respective polarity code and time-hopping code. A method includes a digital cross-correlation of the received signal with the training sequence. The cross-correlation algebraically sums in accordance with the polarity code windows of the received signal. The starting points of the windows are determined by the time-hopping code. The cross-correlation further includes detecting the end point of the preamble from the result of the digital cross-correlation. When the size of the receiving buffer, i.e., the size of the window is smaller than the number N of samples of each replica of the training sequence, it is particularly advantageous that the digital cross-correlation be performed iteratively in a block-by-block fashion. The computation of each block is split into M slices which are computed by algebraically summing windows N/M samples long.
    Type: Application
    Filed: March 31, 2004
    Publication date: December 2, 2004
    Applicant: STMicroelectronics N.V.
    Inventors: Chiara Cattaneo, Nils Rinaldi, Matteo Frigerio, Regis Cattenoz