Patents by Inventor Didier Helal

Didier Helal 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).

  • Patent number: 7386066
    Abstract: A detection device includes an antenna for receiving an incident signal, and for delivering a base signal. A comparator receives the base signal and provides an intermediate signal representative of the sign of the base signal relative to a reference signal. A sampling circuit samples the intermediate signal for providing a digital signal. A digital processing circuit correlates the digital signal with a predetermined correlation signal.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: June 10, 2008
    Assignees: STMicroelectronics SA, STMicroelectronics N.V.
    Inventors: Didier Helal, Thierry Arnaud, Fritz Lebowsky
  • Patent number: 7321608
    Abstract: Successive groups of N bits are delivered at a delivery frequency Fe greater than a predetermined frequency PRF. At least one of the successive groups includes at least one subgroup of at least one bit defining at least one digital cue of position and of shape of at least one base pulse within a window of length 1/PRF. This digital cue is converted into the base pulse, and the base pulse is filtered using a high-pass filter for providing a pulse of the ultra wideband type within the window with a temporal accuracy equal to 1/N*Fe.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: January 22, 2008
    Assignee: STMicroelectronics N.V.
    Inventors: Lydi Smaini, Didier Helal
  • Patent number: 7289561
    Abstract: Pulses of a signal, which are respectively contained in successive time windows, may be generated by a generator, and a control device may formulate a control signal for the generator including, for each pulse, an indication of its position in the corresponding window. The control device may include a processor to deliver for each time window, at a delivery frequency Fe greater than the pulse repetition frequency, successive groups of N bits together defining a digital cue of position of a pulse inside the window. Also, a converter may convert this digital position cue into the control signal temporally spread over the length (T) of the window and including the indication of position at an instant corresponding to the digital position cue. This makes it possible to position the pulse inside its window with a temporal precision equal to 1/N*Fe.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: October 30, 2007
    Assignees: STMicroelectronics N.V., STMicroelectronics SA
    Inventors: Didier Helal, Fritz Lebowsky
  • Patent number: 7054349
    Abstract: An incident pulse signal of the ultra wideband type conveys digital information that is coded using pulses having a known theoretical shape. A decoding device includes an input for receiving the incident signal, and for delivering a base signal. A comparator receives the base signal and delivers an intermediate signal representative of the sign of the base signal with respect to a reference. A sampling circuit samples the intermediate signal for delivering a digital signal. A digital processing circuit correlates the digital signal with a reference correlation signal corresponding to a theoretical base signal arising from the reception of a theoretical pulse having the known theoretical shape.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: May 30, 2006
    Assignees: STMicroelectronics N.V., STMicroelectronics SA
    Inventors: Chiara Cattaneo, Didier Helal, Thierry Arnaud, Fritz Lebowsky, RĂ©gis Cattenoz
  • Publication number: 20040213325
    Abstract: Successive groups of N bits are delivered at a delivery frequency Fe greater than a predetermined frequency PRF. At least one of the successive groups includes at least one subgroup of at least one bit defining at least one digital cue of position and of shape of at least one base pulse within a window of length 1/PRF. This digital cue is converted into the base pulse, and the base pulse is filtered using a high-pass filter for providing a pulse of the ultra wideband type within the window with a temporal accuracy equal to 1/N*Fe.
    Type: Application
    Filed: March 5, 2004
    Publication date: October 28, 2004
    Applicant: STMicroelectronics N.V.
    Inventors: Lydi Smaini, Didier Helal
  • Publication number: 20040047414
    Abstract: A controllable pulse generator generates the pulses of the signal which are respectively contained in successive time windows, and a control device formulates a control signal for the generator including, for each pulse, an indication of its position in the corresponding window. The control device includes a processor to deliver for each time window, at a delivery frequency Fe greater than the pulse repetition frequency, successive groups of N bits together defining a digital cue of position of a pulse inside the window. Also, a converter converts this digital position cue into the control signal temporally spread over the length (T) of the window and including the indication of position at an instant corresponding to the digital position cue. This makes it possible to position the pulse inside its window with a temporal precision equal to 1/N.Fe.
    Type: Application
    Filed: June 19, 2003
    Publication date: March 11, 2004
    Applicants: STMicroelectronics SA, STMicroelectronics N.V.
    Inventors: Didier Helal, Fritz Lebowsky
  • Publication number: 20030086511
    Abstract: A detection device includes an antenna for receiving an incident signal, and for delivering a base signal. A comparator receives the base signal and provides an intermediate signal representative of the sign of the base signal relative to a reference signal. A sampling circuit samples the intermediate signal for providing a digital signal. A digital processing circuit correlates the digital signal with a predetermined correlation signal.
    Type: Application
    Filed: September 26, 2002
    Publication date: May 8, 2003
    Applicant: STMicroelectronics S.A.
    Inventors: Didier Helal, Thierry Arnaud, Fritz Lebowsky
  • Publication number: 20030058963
    Abstract: An incident pulse signal of the ultra wideband type conveys digital information that is coded using pulses having a known theoretical shape. A decoding device includes an input for receiving the incident signal, and for delivering a base signal. A comparator receives the base signal and delivers an intermediate signal representative of the sign of the base signal with respect to a reference. A sampling circuit samples the intermediate signal for delivering a digital signal. A digital processing circuit correlates the digital signal with a reference correlation signal corresponding to a theoretical base signal arising from the reception of a theoretical pulse having the known theoretical shape.
    Type: Application
    Filed: September 26, 2002
    Publication date: March 27, 2003
    Applicant: STMicroelectronics N.V.
    Inventors: Chiara Cattaneo, Didier Helal, Thierry Arnaud, Fritz Lebowsky, Regis Cattenoz