Patents by Inventor Julien Barletta

Julien Barletta 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).

  • Methods for carbon isotope labeling synthesis by transition metal-promoted carbonylation via isocyanate using azides and carbon-isotope monoxide
    Patent number: 8741261
    Abstract: Methods and reagents for transition metal-promoted carbonylation via isocyanate using carbon-isotope labeled carbon monoxide are provided. The resultant carbon-isotope labeled compounds are useful as radiopharmaceuticals, especially for use in Positron Emission Tomography (PET). Associated kits for PET studies are also provided.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: June 3, 2014
    Assignee: GE Healthcare Limited
    Inventors: Bengt Langstrom, Julien Barletta, Hisashi Doi, Masaaki Suzuki, Ryoji Noyori, Yasuyoshi Watanabe, Farhad Karimi
  • Method for the flexible demodulation of estimated complex symbols
    Patent number: 8155230
    Abstract: A method for soft demapping of complex-valued symbols y(k) (k=1, 2, . . . , K) by calculation of a Logarithm of Likelihood Ratio (LogLR) such that: Log ? ? LR ? ( b I , q ) = ln ? ? ? ? ? S l , q ( 1 ) ? exp ( - 1 2 ? ? ? ? y ~ ? ( k ) - ? ? 2 ) ? ? ? ? S q , l ( 0 ) ? exp ( - 1 2 ? ? ? ? y ~ ? ( k ) - ? ? 2 ) wherein bI,q is the qth coded bit of an in-phase part of a transmitted signal, ? is an asymptotic Signal-to-Interference-plus-Noise Ratio, {tilde over (y)}(k) is a standardized symbol associated with y(k), ? is a reference symbol of QAM constellation associated with a M-QAM modulation, S(1)I,q and S(0)I,q are complex plane partitions that bring together, respectively, all reference symbols ? having a “1” at the position (I, q) and all reference symbols ? having a “0” at the position (I, q), a formula similar to LogLR being given for the bit bQ,p, pth coded bit of a quadrature part of the transmitted signal.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: April 10, 2012
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Dimitri Ktenas, Mathieu Bouvier Des Noes, Julien Barletta, Claire Guyon
  • Method for the Flexible Demodulation of Estimated Complex Symbols
    Publication number: 20080175339
    Abstract: A method for soft demapping of complex-valued symbols y(k) (k=1, 2, . . . , K) by calculation of a Logarithm of Likelihood Ratio (LogLR) such that: Log ? ? LR ? ( b I , q ) = ln ? ? ? ? ? S l , q ( 1 ) ? exp ( - 1 2 ? ? ? ? y ~ ? ( k ) - ? ? 2 ) ? ? ? ? S q , l ( 0 ) ? exp ( - 1 2 ? ? ? ? y ~ ? ( k ) - ? ? 2 ) wherein bI,q is the qth coded bit of an in-phase part of a transmitted signal, ? is an asymptotic Signal-to-Interference-plus-Noise Ratio, {tilde over (y)}(k) is a standardized symbol associated with y(k), ? is a reference symbol of QAM constellation associated with a M-QAM modulation, S(1)I,q and S(0)I,q are complex plane partitions that bring together, respectively, all reference symbols ? having a “1” at the position (I, q) and all reference symbols ? having a “0” at the position (I, q), a formula similar to LogLR being given for the bit bQ,p, pth coded bit of a quadrature part of the transmitted signal.
    Type: Application
    Filed: March 8, 2005
    Publication date: July 24, 2008
    Applicant: Commissariat A'energie Atomique
    Inventors: Dimitri Ktenas, Mathieu Bouvier Des Noes, Julien Barletta, Claire Guyon
  • Methods for carbon istope labeling synthesis by rhodium-promoted carbonylation via isocyanate using azides and carbon-isotope monoxide
    Publication number: 20070249816
    Abstract: Methods and reagents for rhodium-promoted carbonylation via isocyanate using carbon-isotope labeled carbon monoxide are provided. The resultant carbon isotope labeled compounds are useful as radiopharmaceuticals, especially for use in Positron Emission Tomography (PET). Associated kits for PET studies are also provided.
    Type: Application
    Filed: December 13, 2004
    Publication date: October 25, 2007
    Inventors: Bengt Langstrom, Julien Barletta, Hisashi Doi, Masaaki Suzuki, Ryoji Noyori, Yasuyoshi Watanabe, Farhad Karimi
  • Methods for carbon isotope labeling synthesis by transition metal-promoted carbonylation via ketene using diazo compounds and carbon-isotope monoxide
    Publication number: 20060217537
    Abstract: Methods and reagents for transition metal-promoted carbonylation via diazo compounds using carbon-isotope labeled carbon monoxide are provided. The resultant carbon-isotope labeled compounds are useful as radiopharmaceuticals, especially for use in Positron Emission Tomography (PET). Associated kits for PET studies are also provided.
    Type: Application
    Filed: March 22, 2006
    Publication date: September 28, 2006
    Inventors: Bengt Langstrom, Julien Barletta, Farhad Karimi, Hisashi Doi
  • Methods for carbon isotope labeling synthesis by transition metal-promoted carbonylation via isocyanate using azides and carbon-isotope monoxide
    Publication number: 20060002851
    Abstract: Methods and reagents for transition metal-promoted carbonylation via isocyanate using carbon-isotope labeled carbon monoxide are provided. The resultant carbon-isotope labeled compounds are useful as radiopharmaceuticals, especially for use in Positron Emission Tomography (PET). Associated kits for PET studies are also provided.
    Type: Application
    Filed: March 22, 2005
    Publication date: January 5, 2006
    Inventors: Bengt Langstrom, Julien Barletta, Hisashi Doi, Masaaki Suzuki, Ryoji Noyori, Yasuyoshi Watanabe, Farhad Karimi
  • Cdma radiocommunication method with access codes and corresponding receiver
    Publication number: 20030161387
    Abstract: CDMA radio-communications procedure with access codes and pertinent receiver.
    Type: Application
    Filed: February 11, 2003
    Publication date: August 28, 2003
    Inventors: Laurent Ouvry, Julien Barletta, Mathieu Bourvier Des Noes, Didier Lattard