Patents by Inventor Laurent Perraud

Laurent Perraud 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: 10112630
    Abstract: A bogie frame for a railway vehicle includes at least two stringers. Each of the stringers has two flanks and at least one central core linking the two flanks to each other. The two flanks and the central core of each stringer are each formed from a cut metal sheet that is substantially planar and not folded. The vehicle also includes at least one transverse tube linking the two stringers to each other.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: October 30, 2018
    Assignee: Alstom Transport Technologies
    Inventors: Laurent Perraud, Michaël Lafay, Christophe Rosenthal, Raymond Gaborit, Jean-François Dumontet
  • Publication number: 20160159374
    Abstract: A bogie frame for a railway vehicle includes at least two stringers. Each of the stringers has two flanks and at least one central core linking the two flanks to each other. The two flanks and the central core of each stringer are each formed from a cut metal sheet that is substantially planar and not folded. The vehicle also includes at least one transverse tube linking the two stringers to each other.
    Type: Application
    Filed: December 3, 2015
    Publication date: June 9, 2016
    Inventors: Laurent Perraud, Michaël Lafay, Christophe Rosenthal, Raymond Gaborit, Jean-François Dumontet
  • Patent number: 8379770
    Abstract: System for converting a radiofrequency signal SRX so as to recover encoded information carried by the signal SRX, includes generating elements arranged to generate a signal SLO, mixing elements (3) arranged to generate a signal SRX-LO by mixing the signal SRX with the signal SLO, an analog/digital converter arranged to convert the signal SRXLO into a digital signal SRX-LO-Num, a device generating an error correction digital signal SCor, the device being arranged so that the signal SCor reflects the phase gap between the phase of the signal SLO and a phase setpoint, the phase setpoint being the phase of an ideal signal S0, ideal for recovering the encoded information carried by the signal SRX, combining elements arranged to generate the signal S0?-Num by combining the signal SRX-LO-Num with the signal SCor. A system for converting a digital signal so as to send a radiofrequency analog signal carrying the information of the digital signal is also described.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: February 19, 2013
    Assignee: Nanoscale Labs
    Inventors: Nicolas Sornin, Laurent Perraud
  • Patent number: 8270513
    Abstract: The present invention provides a method and system for transmitting a multi-frequency signal composed of discrete tones of constant envelope parts that are amplified by a bank of fully saturated transmitters operating in their most power efficient mode. After amplification and transmission, the signals are multiplexed in the air as opposed to multiplexing before amplification that allows for more efficient amplification as well.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: September 18, 2012
    Assignee: Cobham Defense Electronic Systems Corporation
    Inventors: Robert Egri, Laurent Perraud
  • Publication number: 20100264978
    Abstract: System for converting a radiofrequency signal SRX so as to recover encoded information carried by the signal SRX, includes generating elements arranged to generate a signal SLO, mixing elements (3) arranged to generate a signal SRX-LO by mixing the signal SRX with the signal SLO, an analog/digital converter arranged to convert the signal SRXLO into a digital signal SRX-LO-Num, a device generating an error correction digital signal SCor, the device being arranged so that the signal SCor reflects the phase gap between the phase of the signal SLO and a phase setpoint, the phase setpoint being the phase of an ideal signal S0, ideal for recovering the encoded information carried by the signal SRX, combining elements arranged to generate the signal S0?Num by combining the signal SRX-LO-Num with the signal SCor. A system for converting a digital signal so as to send a radiofrequency analog signal carrying the information of the digital signal is also described.
    Type: Application
    Filed: November 21, 2008
    Publication date: October 21, 2010
    Applicant: NANOSCALE LABS
    Inventors: Nicolas Sornin, Laurent Perraud
  • Publication number: 20070280372
    Abstract: The present invention provides a method and system for transmitting a multi-frequency signal composed of discrete tones of constant envelope parts that are amplified by a bank of fully saturated transmitters operating in their most power efficient mode. After amplification and transmission, the signals are multiplexed in the air as opposed to multiplexing before amplification that allows for more efficient amplification as well.
    Type: Application
    Filed: May 24, 2007
    Publication date: December 6, 2007
    Applicant: M/A-COM, Inc.
    Inventors: Robert Egri, Laurent Perraud
  • Patent number: 7098476
    Abstract: A novel air-gap-containing interconnect wiring structure is described incorporating a solid low-k dielectric in the via levels, and a composite solid plus air-gap dielectric in the wiring levels. Also provided is a method for forming such an interconnect structure. The method is readily scalable to interconnect structures containing multiple wiring levels, and is compatible with Dual Damascene Back End of the Line (BEOL) processing.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: August 29, 2006
    Assignee: International Business Machines Corporation
    Inventors: Katherina E. Babich, Roy Arthur Carruthers, Timothy Joseph Dalton, Alfred Grill, Jeffrey Curtis Hedrick, Christopher Vincent Jahnes, Ebony Lynn Mays, Laurent Perraud, Sampath Purushothaman, Katherine Lynn Saenger
  • Patent number: 7043206
    Abstract: An offset correction analogic circuit capable of compensating the offset of a digital baseband is described. The circuit comprises analog means to receive an output differential signal issued from a differential signal path. The differential signal path may be a baseband filter as used in digital communication systems. The baseband filter inputs an input differential signal having an offset to be compensated. The output differential signal is fed into an analog integrator to generate a pulsed signal either on a first output line or on a second output line according to the polarity of the output differential signal. The pulsed signal is then integrated into a switched capacitor and a differential compensation offset signal is issued. The frequency of the pulsed signal is preferably proportional to the voltage value of the output differential signal. The compensation offset signal may be summed with the input differential signal into a summing circuit.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: May 9, 2006
    Assignee: International Business Machines Corporation
    Inventors: Cheryl Herdey, Shane Kaiser, Hung-Chuan Pai, Laurent Perraud, Nicolas Sornin, Gerald J. Twomey
  • Publication number: 20050037604
    Abstract: A novel air-gap-containing interconnect wiring structure is described incorporating a solid low-k dielectric in the via levels, and a composite solid plus air-gap dielectric in the wiring levels. Also provided is a method for forming such an interconnect structure. The method is readily scalable to interconnect structures containing multiple wiring levels, and is compatible with Dual Damascene Back End of the Line (BEOL) processing.
    Type: Application
    Filed: September 24, 2004
    Publication date: February 17, 2005
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Katherina Babich, Roy Carruthers, Timothy Dalton, Alfred Grill, Jeffrey Hedrick, Christopher Jahnes, Ebony Mays, Laurent Perraud, Sampath Purushothaman, Katherine Saenger
  • Patent number: 6815329
    Abstract: A novel air-gap-containing interconnect wiring structure is described incorporating a solid low-k dielectric in the via levels, and a composite solid plus air-gap dielectric in the wiring levels. Also provided is a method for forming such an interconnect structure. The method is readily scalable to interconnect structures containing multiple wiring levels, and is compatible with Dual Damascene Back End of the Line (BEOL) processing.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: November 9, 2004
    Assignee: International Business Machines Corporation
    Inventors: Katherina E. Babich, Roy Arthur Carruthers, Timothy Joseph Dalton, Alfred Grill, Jeffrey Curtis Hedrick, Christopher Vincent Jahnes, Ebony Lynn Mays, Laurent Perraud, Sampath Purushothaman, Katherine Lynn Saenger
  • Publication number: 20030098734
    Abstract: An offset correction analogic circuit capable of compensating the offset of a digital baseband is described. The circuit comprises analog means to receive an output differential signal issued from a differential signal path. The differential signal path may be a baseband filter as used in digital communication systems. The baseband filter inputs an input differential signal having an offset to be compensated. The output differential signal is fed into an analog integrator to generate a pulsed signal either on a first output line or on a second output line according to the polarity of the output differential signal. The pulsed signal is then integrated into a switched capacitor and a differential compensation offset signal is issued. The frequency of the pulsed signal is preferably proportional to the voltage value of the output differential signal. The compensation offset signal may be summed with the input differential signal into a summing circuit.
    Type: Application
    Filed: October 25, 2002
    Publication date: May 29, 2003
    Inventors: Cheryl Herdey, Shane Kaiser, Hung-Chuan Pai, Laurent Perraud, Nicolas Sornin, Gerald J. Twomey
  • Publication number: 20020158337
    Abstract: A novel air-gap-containing interconnect wiring structure is described incorporating a solid low-k dielectric in the via levels, and a composite solid plus air-gap dielectric in the wiring levels. Also provided is a method for forming such an interconnect structure. The method is readily scalable to interconnect structures containing multiple wiring levels, and is compatible with Dual Damascene Back End of the Line (BEOL) processing.
    Type: Application
    Filed: April 2, 2002
    Publication date: October 31, 2002
    Inventors: Katherina E. Babich, Roy Arthur Carruthers, Timothy Joseph Dalton, Alfred Grill, Jeffrey Curtis Hedrick, Christopher Vincent Jahnes, Ebony Lynn Mays, Laurent Perraud, Sampath Purushothaman, Katherine Lynn Saenger