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1631 records (took 0.025 seconds)

    SMART CARD
    391.
    发明申请
    SMART CARD 有权

    公开(公告)号：US20220164620A1

    公开(公告)日：2022-05-26

    申请号：US17524094

    申请日：2021-11-11

    Applicant: STMicroelectronics (Rousset) SAS

    Inventor： Olivier ROUY

    IPC: G06K19/077 ,  G06K19/07 ,  H05B45/3725 ,  H05B45/32 ,  H05B45/50

    Abstract: A light-emitting diode has an anode terminal coupled to a node of application of a power supply voltage by a first transistor and a cathode terminal coupled to a node of application of a reference voltage by a second transistor. A microcontroller includes a digital-to-analog converter and a comparator, with the comparator having a first input coupled to one of the anode and cathode terminals of the diode and a second input configured to receive an output voltage of the converter. An output signal of the comparator controls one of the first and second transistors to turn off when the comparator detects an operating condition where current flow in the light-emitting diode exceeds maximum current limit (such as with the light-emitting diode operating in an exponential operating area.

    Modification of a memory of a secure microprocessor
    392.
    发明授权
    Modification of a memory of a secure microprocessor 有权

    公开(公告)号：US11340798B2

    公开(公告)日：2022-05-24

    申请号：US16898921

    申请日：2020-06-11

    Applicant: STMicroelectronics (Rousset) SAS ,  STMicroelectronics (Grand Ouest) SAS

    Inventor： William Orlando ,  Julien Couvrand ,  Pierre Guillemin

    IPC: G06F3/06 ,  H04L9/06

    Abstract: A method includes receiving, by a first microprocessor, a request of modification of a content of a first memory of the first microprocessor, the first memory being accessible only by the first microprocessor. The method includes accessing, by the first microprocessor, first data associated with the request and a signature generated from the first data with an asymmetric cipher algorithm. The first data and the signature are available in a second memory of a second microprocessor, and the first data is representative of a modification to be applied to the content of the first memory. The modification is representative of a modification of a set of services exposed by the first microprocessor. The method includes verifying, by the first microprocessor, authenticity of the first data based on the signature; and modifying the content of the first memory according to the first data, the modifying being conditioned by the verifying.

    SMART CARD
    393.
    发明申请
    SMART CARD 有权

    公开(公告)号：US20220156542A1

    公开(公告)日：2022-05-19

    申请号：US17521524

    申请日：2021-11-08

    Applicant: STMicroelectronics (Rousset) SAS

    Inventor： Olivier ROUY

    IPC: G06K19/07 ,  G06K19/077 ,  G06Q20/40 ,  H01Q1/22

    Abstract: A smart card includes a first circuit delivering a power supply voltage and a second circuit coupled to the first circuit by an electrical conductor and powered with the power supply voltage. A light-emitting diode has a first terminal coupled to the electrical conductor and a second terminal coupled to a first terminal of the second circuit. During a first operating phase, the first circuit delivers a first value of the power supply voltage and the second circuit applies a first voltage to the first terminal. During a second operating phase, the first circuit delivers a second value of the power supply voltage and the second circuit applies a second voltage to the first terminal.

    Electronic circuit
    394.
    发明授权
    Electronic circuit 有权

    公开(公告)号：US11328098B2

    公开(公告)日：2022-05-10

    申请号：US16894523

    申请日：2020-06-05

    Applicant: STMICROELECTRONICS (ROUSSET) SAS

    Inventor： Fabrice Marinet

    IPC: H04L9/06 ,  G06F21/72 ,  G06F9/448 ,  B41J2/175

    Abstract: An electronic circuit includes an interface, a read-only memory in which encrypted data are stored, and cryptographic circuitry coupled to the interface. In operation, the cryptographic circuitry uses a decryption key received via the interface to decrypt the encrypted data. The electronic circuit performs one or more operations using the decrypted data.

    PHASE-CHANGE MEMORY
    395.
    发明申请
    PHASE-CHANGE MEMORY 有权

    公开(公告)号：US20220140233A1

    公开(公告)日：2022-05-05

    申请号：US17508754

    申请日：2021-10-22

    Applicant: STMICROELECTRONICS (ROUSSET) SAS

    Inventor： Philippe BOIVIN

    IPC: H01L45/00

    Abstract: The present description concerns a device including phase-change memory cells, each memory cell including a first resistive element in lateral contact with a second element made of a phase-change material.

    INTEGRATED CIRCUIT INCLUDING TRANSISTORS HAVING A COMMON BASE
    399.
    发明申请
    INTEGRATED CIRCUIT INCLUDING TRANSISTORS HAVING A COMMON BASE 有权

    公开(公告)号：US20220115441A1

    公开(公告)日：2022-04-14

    申请号：US17559821

    申请日：2021-12-22

    Applicant: STMicroelectronics (Rousset) SAS

    Inventor： Philippe BOIVIN

    IPC: H01L27/24 ,  H01L21/8222 ,  H01L27/082 ,  H01L45/00 ,  H01L29/10

    Abstract: The disclosure relates to integrated circuits including one or more rows of transistors and methods of forming rows of transistors. In an embodiment, an integrated circuit includes a row of bipolar transistors including a first semiconductor layer having a plurality of first conduction regions, a second semiconductor layer having a second conduction region, a common base between the first semiconductor layer and the second semiconductor layer, and a plurality of insulator walls extending in a first direction. The first conduction regions are separated from one another by the insulator walls. The integrated circuit further includes an insulating trench extending in a second direction and in contact with each of the bipolar transistors of the row of bipolar transistors. A conductive layer is coupled to the base, and the conductive layer extends through the insulator walls and extends at least partially into the insulating trench.

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