Patents by Inventor Michel Bardouillet

Michel Bardouillet 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: 8738919
    Abstract: A method for recording at least one information block in a first volatile memory external to a circuit, a first digital signature being calculated based on information and data internal to the circuit and a second digital signature being calculated based on first signatures of a group of information blocks and on a digital quantity internal to the circuit and assigned to said group. A method for checking the content of an information block recorded by this recording method.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: May 27, 2014
    Assignee: STMicroelectronics S.A.
    Inventor: Michel Bardouillet
  • Patent number: 8130159
    Abstract: An antenna generating an electromagnetic field for an electromagnetic transponder and a terminal provided with such an antenna. The antenna comprises a first inductive element designed to be connected to two terminals employing an energizing voltage, and a parallel resonant circuit coupled with the first inductive element.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: March 6, 2012
    Assignee: STMicroelectronics S.A.
    Inventors: Luc Wuidart, Michel Bardouillet
  • Patent number: 8045712
    Abstract: A method and an element of ciphering by an integrated processor of data to be stored in a memory, including applying a ciphering algorithm which is a function of a key specific to the integrated circuit and of an initialization vector, and of memorizing at least the ciphered data, the initialization vector depending at least on the address of storage of the data in the memory.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: October 25, 2011
    Assignees: STMicroelectronics S.A., Proton World International N.V.
    Inventors: Joan Daemen, Pierre Guillemin, Claude Anguille, Michel Bardouillet, Pierre-Yvan Liardet, Yannick Teglia
  • Patent number: 7978540
    Abstract: An integrated cell and method for extracting a binary value based on a value difference between two resistors values, including connection circuitry for a binary reading of the sign of the difference between the resistors, and connection circuitry for a modification of the value of one of the resistors to make the sign of the difference invariable.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: July 12, 2011
    Assignee: STMicroelectronics S.A.
    Inventors: Michel Bardouillet, Pierre Rizzo, Alexandre Malherbe, Luc Wuidart
  • Patent number: 7945791
    Abstract: A method for protecting at least one first datum to be stored in an integrated circuit, including, upon storage of the first datum, performing a combination with at least one second physical datum coming from at least one network of physical parameters, and only storing the result of this combination, and in read mode, extracting the stored result and using the second physical datum to restore the first datum.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: May 17, 2011
    Assignee: STMicroelectronics S.A.
    Inventors: William Orlando, Luc Wuidart, Michel Bardouillet, Pierre Balthazar
  • Patent number: 7941672
    Abstract: A method and a circuit for generating a secret quantity based on an identifier of an integrated circuit, including combining a first digital word derived from a physical parameter network with a second word stored in a non-volatile memory element.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: May 10, 2011
    Assignee: STMicroelectronics S.A.
    Inventors: Luc Wuidart, Michel Bardouillet, Laurent Plaza
  • Patent number: 7796759
    Abstract: A method and a circuit of generation of several secret quantities by an integrated circuit according to the destination of these secret quantities, including taking into account a first digital word forming a single identifier of the integrated circuit chip and coming from a physical parameter network, and of individualizing this identifier according to the application.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: September 14, 2010
    Assignee: STMicroelectronics S.A.
    Inventors: Luc Wuidart, Michel Bardouillet, Laurent Plaza
  • Patent number: 7774615
    Abstract: A method for recording at least one block of variable data in a first volatile memory external to a microprocessor, including calculating and storing a digital signature taking into account at least partially the address and the content of said data block in the memory, and at least a first random digital value internal to the microprocessor.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: August 10, 2010
    Assignees: STMicroelectronics S.A., Proton World International N.V.
    Inventors: Michel Bardouillet, Claude Anguille, Joan Daemen
  • Publication number: 20100097843
    Abstract: An integrated cell and method for extracting a binary value based on a value difference between two resistors values, including connection circuitry for a binary reading of the sign of the difference between the resistors, and connection circuitry for a modification of the value of one of the resistors to make the sign of the difference invariable.
    Type: Application
    Filed: December 18, 2009
    Publication date: April 22, 2010
    Applicant: STMicroelectronics S.A.
    Inventors: Michel Bardouillet, Pierre Rizzo, Alexandre Malherbe, Luc Wuidart
  • Publication number: 20100039337
    Abstract: An antenna generating an electromagnetic field for an electromagnetic transponder and a terminal provided with such an antenna. The antenna comprises a first inductive element designed to be connected to two terminals employing an energizing voltage, and a parallel resonant circuit coupled with the first inductive element.
    Type: Application
    Filed: September 15, 2009
    Publication date: February 18, 2010
    Applicant: STMicroelectronics S.A.
    Inventors: Luc Wuidart, Michel Bardouillet
  • Patent number: 7660182
    Abstract: An integrated cell for extracting a binary value based on a value difference between two resistors values, including connection circuitry for a binary reading of the sign of the difference between the resistors, and connection circuitry for a modification of the value of one of the resistors to make the sign of the difference invariable.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: February 9, 2010
    Assignee: STMicroelectronics Inc.
    Inventors: Michel Bardouillet, Pierre Rizzo, Alexandre Malherbe, Luc Wuidart
  • Publication number: 20080263422
    Abstract: A method for recording at least one information block in a first volatile memory external to a circuit, a first digital signature being calculated based on information and data internal to the circuit and a second digital signature being calculated based on first signatures of a group of information blocks and on a digital quantity internal to the circuit and assigned to said group. A method for checking the content of an information block recorded by this recording method.
    Type: Application
    Filed: April 18, 2008
    Publication date: October 23, 2008
    Applicant: STMicroelectronics S.A.
    Inventor: Michel Bardouillet
  • Patent number: 7427802
    Abstract: The invention relates to a method and device for the irreversible reduction of the value of an integrated polycrystalline silicon resistor. The inventive method consists in temporarily subjecting the resistor to a stress current which is greater than a current (Im) for which the value of the resistor is maximum.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: September 23, 2008
    Assignee: STMicroelectronics S.A.
    Inventors: Luc Wuidart, Alexandre Malherbe, Michel Bardouillet
  • Publication number: 20080130348
    Abstract: An integrated cell for extracting a binary value based on a value difference between two resistors values, including connection circuitry for a binary reading of the sign of the difference between the resistors, and connection circuitry for a modification of the value of one of the resistors to make the sign of the difference invariable.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 5, 2008
    Applicant: STMicroelectronics Inc.
    Inventors: Michel Bardouillet, Pierre Rizzo, Alexandre Malherbe, Luc Wuidart
  • Patent number: 7372359
    Abstract: An electromagnetic transponder including: a parallel oscillating circuit adapted to extracting a supply signal from a radiated field; in parallel with the oscillating circuit, several branches each including a programmable resistor and a switch; and a cyclic control element for successively turning on the switches, each resistor forming an element for storing a portion of the code stored in the transponder.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: May 13, 2008
    Assignee: STMicroelectronics S.A.
    Inventors: Luc Wuidart, Michel Bardouillet
  • Publication number: 20080104420
    Abstract: A method for protecting at least one first datum to be stored in an integrated circuit, including, upon storage of the first datum, performing a combination with at least one second physical datum coming from at least one network of physical parameters, and only storing the result of this combination, and in read mode, extracting the stored result and using the second physical datum to restore the first datum.
    Type: Application
    Filed: December 20, 2007
    Publication date: May 1, 2008
    Applicant: STMicroelectronics S.A.
    Inventors: William Orlando, Luc Wuidart, Michel Bardouillet, Pierre Balthazar
  • Patent number: 7334131
    Abstract: A method for protecting at least one first datum to be stored in an integrated circuit, including, upon storage of the first datum, performing a combination with at least one second physical datum coming from at least one network of physical parameters, and only storing the result of this combination, and in read mode, extracting the stored result and using the second physical datum to restore the first datum.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: February 19, 2008
    Assignee: STMicroelectronics S.A.
    Inventors: William Orlando, Luc Wuidart, Michel Bardouillet, Pierre Balthazar
  • Patent number: 7333386
    Abstract: An integrated cell for extracting a binary value based on a value difference between two resistors values, including connection circuitry for a binary reading of the sign of the difference between the resistors, and connection circuitry for a modification of the value of one of the resistors to make the sign of the difference invariable.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: February 19, 2008
    Assignee: STMicroelectronics S.A.
    Inventors: Michel Bardouillet, Pierre Rizzo, Alexandre Malherbe, Luc Wuidart
  • Patent number: 7199631
    Abstract: The invention concerns a circuit (1) for storing a binary code (B1, B2, Bi-1, Bi, Bn-1, Bn) in an integrated circuit chip, comprising an input terminal (2) applying a signal (E) triggering reading of the code, output terminals (31, 32, 3i-1, 3i, 3n-1, 3n) for delivering said binary code, first electrical paths (P1, P2, Pi, Pn) individually connecting said input terminal to each output terminal, each path inputting a fixed delay in the manufacture of the integrated circuit, and means (4, 51, 52, 5i, 5n) simultaneously integrating the binary states present in output of the electrical paths.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: April 3, 2007
    Assignee: STMicroelectronics S.A.
    Inventors: Michel Bardouillet, Luc Wuidart
  • Patent number: 7191340
    Abstract: A method and a circuit for generating a secret quantity based on an identifier of an integrated circuit, in which a first digital word is generated from a physical parameter network, and this first word is submitted to at least one retroaction shift register, the output of the shift register forming the secret quantity.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: March 13, 2007
    Assignee: STMicroelectronics S.A.
    Inventors: Luc Wuidart, Michel Bardouillet, Laurent Plaza