公开(公告)号：FR2829265A1

公开(公告)日：2003-03-07

申请号：FR0111435

申请日：2001-09-04

Applicant: ST MICROELECTRONICS SA

Inventor： WUIDART SYLVIE ,  WUIDART LUC ,  BARDOUILLET MICHEL ,  BALTHAZAR PIERRE

IPC: G06F12/14 ,  G01K7/00 ,  G06F13/42 ,  G06F21/06 ,  G06K19/073 ,  H01L21/822 ,  H01L27/04

Abstract: Method for detection of variations of an evironmental parameter (V,T) in an integrated circuit (1): (a) evaluate a propagation delay for retarding parts (21) sensitive to variations parameters environment, and; compare the delay current with respect to a reference value (REF). The measured delay current is compared to two predetermined minimum and maximum levels or a unique reference value defining a authorized operating range for the integrated circuit. The value from programmable retarder is determined as a function of the difference between the current value and reference value. The range of possible variation being predetermined.

公开(公告)号：FR2823401A1

公开(公告)日：2002-10-11

申请号：FR0115526

申请日：2001-11-30

Applicant: ST MICROELECTRONICS SA

Inventor： WUIDART LUC ,  BARDOUILLET MICHEL ,  PLAZA LAURENT

IPC: G06F21/73 ,  G07F7/10 ,  H01L23/544 ,  H01L23/58 ,  H04L9/32 ,  G06K19/073 ,  H04L9/06

Abstract: The private datum is generated on request and is transient, existing in memory (21) for a brief time. The datum lifetime is variable, and shortens with successive generations. The private datum is obtained at least partly from a network of physical parameters, partly by a word supplied from a memory, and partly by circuit noise.

公开(公告)号：FR2823397A1

公开(公告)日：2002-10-11

申请号：FR0115531

申请日：2001-11-30

Applicant: ST MICROELECTRONICS SA

Inventor： WUIDART LUC ,  BARDOUILLET MICHEL ,  PLAZA LAURENT

IPC: G07F7/10 ,  H01L23/544 ,  H01L23/58 ,  H04L9/06 ,  G06K19/073 ,  H04L9/32

Abstract: The private datum is generated on request and is transient, existing in memory (21) for a brief time. The datum lifetime is variable, and shortens with successive generations. The private datum is obtained at least partly from a network of physical parameters, partly by a word supplied from a memory, and partly by circuit noise.

公开(公告)号：FR2823341A1

公开(公告)日：2002-10-11

申请号：FR0104585

申请日：2001-04-04

Applicant: ST MICROELECTRONICS SA

Inventor： BARDOUILLET MICHEL ,  WUIDART LUC

IPC: G01R31/28 ,  G11C5/00 ,  G11C8/20 ,  H01L21/822 ,  H01L27/04 ,  H03K5/15 ,  H03K5/19 ,  G06K19/073

Abstract: The invention concerns an identification method and circuit (1) of the network type of parameters contained in an integrated circuit chip, comprising a single input terminal (2) for applying a signal (E) triggering an identification, the output terminals (31, 32, , 3i-1, 3i , , 3n-1, 3n) adapted to deliver a binary identifying code (B1, B2, Bi-1, Bi, , Bn-1, Bn), first electrical paths (P1, P2, , Pi, , Pn), individually connecting said input terminal to each output terminal, and means (4, 51, 52, , 5i, , 5n) for simultaneously integrating the binary states present in output of the electrical paths, each path inputting a delay sensitive to technological dispersions and/or of the integrated circuit fabrication method.

公开(公告)号：FR2813149A1

公开(公告)日：2002-02-22

申请号：FR0010699

申请日：2000-08-17

Applicant: ST MICROELECTRONICS SA

Inventor： WUIDART LUC ,  BARDOUILLET MICHEL

IPC: G06K19/07 ,  G06K7/00 ,  G06K7/08 ,  G06K7/10 ,  G06K17/00 ,  H01Q1/24 ,  H01Q7/00 ,  H04B1/59 ,  H04B5/02 ,  H04B5/00

Abstract: The invention concerns an antenna generating an electromagnetic field for an electromagnetic transponder, and a terminal provided with such an antenna, comprising a first inductive element (Lp) designed to be connected to two terminals (3, 4) applying an energizing voltage (Vg), and a parallel resonant circuit (21) coupled with the first inductive element.

公开(公告)号：FR2792135A1

公开(公告)日：2000-10-13

申请号：FR9904548

申请日：1999-04-07

Applicant: ST MICROELECTRONICS SA

Inventor： WUIDART LUC ,  BARDOUILLET MICHEL ,  ENGUENT JEAN PIERRE

IPC: G06K7/00 ,  G06K19/07 ,  G01S13/74 ,  H04B1/59 ,  H04B5/02 ,  H04B7/14

Abstract: The coupling between transponder and terminal is reduced by altering the resonant frequency of either the terminal or transponder coupling circuits when the two are in close proximity. When the coupling is reduced, the data rate for the communication between terminal and transponder is automatically increased, which can be achieved because the coupling is effectively a transformer coupling.

公开(公告)号：FR2792133A1

公开(公告)日：2000-10-13

申请号：FR9904545

申请日：1999-04-07

Applicant: ST MICROELECTRONICS SA

Inventor： BARDOUILLET MICHEL

IPC: G06K7/00 ,  H04B7/14

Abstract: An oscillating circuit (R1,L1,24) receives an AC HF voltage. A device is provided to determine a distance between the transponder of the terminal without emission towards the terminal. A phase comparator (21), a transformer circuit (23) and a capacitive element (24) are used for regulation of the phase of the signal in the oscillating circuit in relation to a reference signal.

公开(公告)号：DE60332426D1

公开(公告)日：2010-06-17

申请号：DE60332426

申请日：2003-02-11

Applicant: ST MICROELECTRONICS SA

Inventor： WUIDART LUC ,  BARDOUILLET MICHEL ,  MALHERBE ALEXANDRE

IPC: G11C17/14 ,  G11C16/22

公开(公告)号：DE60236050D1

公开(公告)日：2010-06-02

申请号：DE60236050

申请日：2002-06-11

Applicant: ST MICROELECTRONICS SA

Inventor： ORLANDO WILLIAM ,  WUIDART LUC ,  BARDOUILLET MICHEL ,  BALTHAZAR PIERRE

IPC: G06F12/14 ,  G06F21/12 ,  G06F21/79 ,  H01L23/544 ,  H01L23/58 ,  H04L9/10 ,  H04L9/32

Abstract: The secret datum containing address of a program is combined to the physical datum of physical parameter network of an integrated circuit (10), and the combination result is stored. Independent claims are included for the following: (1) datum reading method; (2) datum protection method; and (3) integrated circuit.

公开(公告)号：DE60036319D1

公开(公告)日：2007-10-25

申请号：DE60036319

申请日：2000-04-06

Applicant: ST MICROELECTRONICS SA

Inventor： WUIDART LUC ,  BARDOUILLET MICHEL ,  ENGUENT JEAN-PIERRE

IPC: G06K7/00 ,  G06K17/00 ,  G01S13/75 ,  G01S13/76 ,  G01S13/79 ,  G06K19/07 ,  H02J17/00 ,  H04B1/59 ,  H04L27/02