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公开(公告)号:FR2890484A1
公开(公告)日:2007-03-09
申请号:FR0509081
申请日:2005-09-06
Applicant: ST MICROELECTRONICS SA
Inventor: NAURA DAVID , MOREAUX CHRISTOPHE , KARI AHMED , RIZZO PIERRE
Abstract: L'invention concerne un circuit intégré passif sans contact (IC2) comprenant une mémoire de données non volatile (MEM) programmable électriquement, un circuit survolteur à accumulation de charges (HVCT, PMP, HGEN) pour fournir une haute tension (Vhv) nécessaire à l'écriture de données (DTW) dans la mémoire. Selon l'invention, le circuit intégré comprend un point mémoire volatile (FF1) pour mémoriser un drapeau indicateur (THR2), et des moyens (THDET, THR1, FF1) pour modifier la valeur du drapeau indicateur (THR2) lorsque la haute tension (Vhv) atteint la première fois un seuil critique (Vc) après activation du circuit survolteur.
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公开(公告)号:FR2890465A1
公开(公告)日:2007-03-09
申请号:FR0509082
申请日:2005-09-06
Applicant: ST MICROELECTRONICS SA
Inventor: MOREAUX CHRISTOPHE , KARI AHMED , NAURA DAVID , RIZZO PIERRE
Abstract: L'invention concerne un procédé de génération d'un signal d'horloge comprenant des étapes de : mesure à l'aide d'un premier signal d'horloge (SFo) d'une caractéristique d'un événement de référence (EVT1) dans un signal reçu (RS) ; déterminer à l'aide du premier signal d'horloge, une variation d'une caractéristique d'un second événement (EVT2, D0) dans un signal reçu (RS) ; corriger la mesure (NEVT1, NFC) en fonction de la variation de la caractéristique du second événement ; et générer un second signal d'horloge (SFC) à partir du premier signal d'horloge en fonction de la mesure corrigée (NFC). Application aux circuits d'émission et de réception d'une puce sans contact.
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公开(公告)号:FR2890200A1
公开(公告)日:2007-03-02
申请号:FR0508729
申请日:2005-08-25
Applicant: ST MICROELECTRONICS SA
Inventor: MOREAUX CHRISTOPHE , KARI AHMED , NAURA DAVID , RIZZO PIERRE
IPC: G06F12/02 , G06K19/073 , G11C8/10
Abstract: L'invention concerne un procédé de configuration d'un espace mémoire (MEM), comprenant des étapes de : lecture dans l'espace mémoire (MEM) d'une information de configuration (SZ3), détermination d'une division d'au moins une partie de l'espace mémoire en zones mémoire (Z1-Z4) en fonction de l'information de configuration lue ; et d'attribution à chacune des zones mémoire d'un numéro d'accès (NBK) à utiliser pour accéder à un emplacement de donnée dans la zone mémoire, en combinaison avec une adresse logique de l'emplacement dans la zone mémoire. Application de l'invention aux puces RFID.
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公开(公告)号:FR2835947A1
公开(公告)日:2003-08-15
申请号:FR0213556
申请日:2002-10-29
Applicant: ST MICROELECTRONICS SA
Inventor: BARDOUILLET MICHEL , RIZZO PIERRE , MALHERBE ALEXANDRE , WUIDART LUC
IPC: G11C17/14 , G11C5/00 , G11C14/00 , H03K3/356 , G06K19/073 , G11C17/18 , G11C17/08 , H01L27/115 , H01L21/326
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.
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公开(公告)号:FR2835119A1
公开(公告)日:2003-07-25
申请号:FR0200899
申请日:2002-01-24
Applicant: ST MICROELECTRONICS SA , GEMPLUS CARD INT
Inventor: RIZZO PIERRE
Abstract: The amplitude demodulator has a peak detection circuit (10) extracting a reference modulation signal and a translation circuit (12) to shift the reference signal to offset its direct component. A threshold is generated (14) to act as reference for modulation start and finish. A comparator (16) compares the shifted signal to the threshold signal to activate supply (20) to components on the chip.
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公开(公告)号:FR2806855B1
公开(公告)日:2002-06-21
申请号:FR0003606
申请日:2000-03-21
Applicant: ST MICROELECTRONICS SA
Inventor: RIZZO PIERRE , DELL OVA FRANCIS
IPC: H03D1/00 , G06K7/00 , G06K19/07 , H03D1/10 , H03K5/08 , H04L25/03 , H04L25/06 , H04L27/06 , H03D1/18
Abstract: The invention concerns a demodulator of an amplitude-modulated signal (Vdb), characterised in that it comprises a peak detecting cell (DCR) capable of extracting the reference modulating signal (Vpeak 1 ) of the modulated signal (Vdb); a first demodulator (FE) adapted to detect the peak of the reference modulating signal (Vpeak 1 ) to generate a high comparison threshold and locate the start of the modulation, a second demodulator (RE) adapted to detect a trough of the reference modulating signal (Vpeak 1 ) to generate a low comparison threshold and locate the end of the modulation; a logic processing unit capable of supplying the demodulated signal (Vdemod).
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公开(公告)号:DE602007003494D1
公开(公告)日:2010-01-14
申请号:DE602007003494
申请日:2007-03-14
Applicant: ST MICROELECTRONICS INC , ST MICROELECTRONICS SA
Inventor: FIDELIS SYLVAIN , RIZZO PIERRE
IPC: G06K19/077 , A61J1/03
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公开(公告)号:DE602006000534T2
公开(公告)日:2009-02-19
申请号:DE602006000534
申请日:2006-08-28
Applicant: ST MICROELECTRONICS SA
Inventor: NAURA DAVID , KARI AHMED , MOREAUX CHRISTOPHE , RIZZO PIERRE
IPC: G11C16/22
Abstract: The circuit has a memory (MEM1) containing transaction data, with electrically erasable and programmable memory cells (C i, j) arranged in horizontal and vertical lines, and linked to word lines (WL i) and bit lines (BL j). A control unit (CTU) executes commands for reading or writing in the memory. The CTU is blocked when reference memory cells of one of the groups contain bits of equal value and if the value is different from a value expected for the one of the groups. The CTU controls a voltage generator (VGEN) which supplies a read voltage (Vread) and an erase-programming voltage (Vpp). An independent claim is also included for a method for protecting an integrated circuit against a global data erasure.
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公开(公告)号:DE602006000534D1
公开(公告)日:2008-03-27
申请号:DE602006000534
申请日:2006-08-28
Applicant: ST MICROELECTRONICS SA
Inventor: NAURA DAVID , KARI AHMED , MOREAUX CHRISTOPHE , RIZZO PIERRE
IPC: G11C16/22
Abstract: The circuit has a memory (MEM1) containing transaction data, with electrically erasable and programmable memory cells (C i, j) arranged in horizontal and vertical lines, and linked to word lines (WL i) and bit lines (BL j). A control unit (CTU) executes commands for reading or writing in the memory. The CTU is blocked when reference memory cells of one of the groups contain bits of equal value and if the value is different from a value expected for the one of the groups. The CTU controls a voltage generator (VGEN) which supplies a read voltage (Vread) and an erase-programming voltage (Vpp). An independent claim is also included for a method for protecting an integrated circuit against a global data erasure.
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公开(公告)号:DE60317312D1
公开(公告)日:2007-12-20
申请号:DE60317312
申请日:2003-02-11
Applicant: ST MICROELECTRONICS SA
Inventor: BARDOUILLET MICHEL , RIZZO PIERRE , MALHERBE ALEXANDRE , WUIDART LUC
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.
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