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    PHYSICALLY UNCLONABLE FUNCTION DEVICE
    1.
    发明申请
    PHYSICALLY UNCLONABLE FUNCTION DEVICE 有权

    公开(公告)号：US20220321124A1

    公开(公告)日：2022-10-06

    申请号：US17846362

    申请日：2022-06-22

    Applicant: STMicroelectronics (Rousset) SAS

    Inventor： Nicolas Borrel ,  Jimmy Fort ,  Mathieu Lisart

    IPC: H03K19/003 ,  H03F3/45 ,  H03K19/00 ,  H03K19/17736 ,  H03L7/097

    Abstract: A physically unclonable function device includes a set of diode-connected MOS transistors having a random distribution of respective threshold voltages. A first circuit is configured to impose, on each first transistor, a fixed respective gate voltage regardless of the value of a current flowing in this first transistor. A second circuit is configured to impose, on each second transistor, a fixed respective gate voltage regardless of the value of a current flowing in this second transistor. A current mirror stage is coupled between the first circuit and the second circuit and is configured to deliver the reference current from a sum of the currents flowing in the first transistors. A comparator is configured to deliver a signal whose level depends on a comparison between a first current obtained from a reference current based on the first transistors and a second current of the second transistors.

    INTEGRATED CIRCUIT POWER SUPPLY REGULATOR
    4.
    发明申请
    INTEGRATED CIRCUIT POWER SUPPLY REGULATOR 有权
    集成电路电源调节器

    公开(公告)号：US20140191578A1

    公开(公告)日：2014-07-10

    申请号：US14147814

    申请日：2014-01-06

    Applicant: STMicroelectronics (Rousset) SAS

    Inventor： Jimmy Fort ,  Fabrice Marinet

    IPC: G05F1/46

    CPC classification number: G05F1/462 ,  G06F1/26 ,  G06F1/3237 ,  G06F21/755 ,  Y02D10/128 ,  Y10T307/549

    Abstract: The current signature of an electronic function is masked by controlling a current source that supplies power for the electronic function is controlled in a dynamically-varying manner. Excess current is detected and compared to a threshold. If the detected excess current meets the threshold, the operation of the electronic function is modified, for example by controlling a clock.

    Abstract translation: 通过控制以动态变化的方式控制为电子功能供电的电流源，屏蔽电子功能的当前签名。 检测到过多的电流并将其与阈值进行比较。 如果检测到的过电流满足阈值，则例如通过控制时钟来修改电子功能的操作。

    Physically unclonable function device
    5.
    发明授权
    Physically unclonable function device 有权

    公开(公告)号：US11374569B2

    公开(公告)日：2022-06-28

    申请号：US17413459

    申请日：2019-11-28

    Applicant: STMicroelectronics (Rousset) SAS

    Inventor： Nicolas Borrel ,  Jimmy Fort ,  Mathieu Lisart

    IPC: H03K5/22 ,  H03K19/003 ,  H03K19/00 ,  H03K19/17736 ,  H03F3/45 ,  H03L7/097 ,  H04L9/32

    Abstract: The physically unclonable function device (DIS) comprises a set of MOS transistors (TR1i, TR2j) mounted in diodes having a random distribution of respective threshold voltages, and comprising N first transistors and at least one second transistor. At least one output node of the function is capable of delivering a signal, the level of which depends on the comparison between a current obtained using a current circulating in the at least one second transistor and a current obtained using a reference current that is equal or substantially equal to the average of the currents circulating in the N first transistors. A first means (FM1i) is configured to impose on each first transistor a respective fixed gate voltage regardless of the value of the current circulating in the first transistor, and a second means (SM2j) is configured to impose a respective fixed gate voltage on each second transistor regardless of the value of the current circulating in the second transistor.

    Voltage regulator
    6.
    发明授权
    Voltage regulator 有权

    公开(公告)号：US11249501B2

    公开(公告)日：2022-02-15

    申请号：US17070380

    申请日：2020-10-14

    Applicant: STMicroelectronics (Rousset) SAS

    Inventor： Jimmy Fort

    IPC: G05F1/59 ,  G05F1/595 ,  G05F1/565

    Abstract: A device includes a first transistor connected between a first node and an output terminal and a first current source connected between the first node and a supply rail. A circuit includes a second current source connected between the supply rail and a second node, an operational amplifier having a non-inverting input configured to receive a potential set point, and a second transistor connected between the second node and an inverting input of the operational amplifier. An output of the operational amplifier is connected to a control terminal of the second transistor and further connected to a control terminal of the first transistor.

    Glitch detection of a DC voltage
    7.
    发明授权
    Glitch detection of a DC voltage 有权

    公开(公告)号：US10768229B2

    公开(公告)日：2020-09-08

    申请号：US16059793

    申请日：2018-08-09

    Applicant: STMicroelectronics (Rousset) SAS

    Inventor： Nicolas Borrel ,  Jimmy Fort

    IPC: G01R31/40 ,  G01R31/317 ,  G01R19/165 ,  G06F1/28 ,  H02M1/00

    Abstract: A circuit for detecting a glitch in power supply includes a detection circuit to detect the glitch in a DC supply voltage of the power supply when a magnitude in the glitch in a DC supply voltage of the power supply exceeds a detection threshold, wherein the detection threshold is a function of the DC supply voltage, and wherein the detection circuit comprises a low pass filter, a control circuit coupled to the low pass filter, and a current mirror circuit coupled to the control circuit having an output for providing a logic signal indicative of a detected glitch.

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