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161.发明授权公开(公告)号：US11700174B2
公开(公告)日：2023-07-11
申请号：US16951198
申请日：2020-11-18
Inventor： Nicolas Anquet , Loic Pallardy
IPC: H04L41/0803 , H04L41/0813 , H04L49/109 , G06F15/173 , G06F15/177 , G06F21/85
CPC classification number: H04L41/0813 , G06F15/177 , G06F15/17306 , H04L41/0803 , H04L49/109 , G06F21/85
Abstract: System on a chip, comprising several master pieces of equipment, several slave resources, an interconnection circuit capable of routing transactions between master pieces of equipment and slave resources, and a processing unit at least configured to allow a user of the system on a chip to implement within the system on a chip at least one configuration diagram of this system defined by a set of configuration pieces of information including at least one piece of identification information assigned to each master piece of equipment, The identification pieces of information are intended to be attached to all the transactions emitted by the corresponding master pieces of equipment, the set of configuration pieces of information not being used for addressing the slave resources receiving the transactions and being used to define an assignment of at least one piece of master equipment to at least some of the slave resources.
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162.发明授权公开(公告)号：US11698993B2
公开(公告)日：2023-07-11
申请号：US17161544
申请日：2021-01-28
Inventor： Gilles Pelissier , Nicolas Anquet , Delphine Le-Goascoz
CPC classification number: G06F21/72 , H04L9/06 , H04L9/0866 , G06F2221/2113
Abstract: A unique hardware key is recorded a secure hardware environment. A first logic circuit of the secure hardware environment is configured to generate a unique derived key from said unique hardware key and at least one piece of information. The at least one piece of information relates to one or more of an execution context and a use of a secret key. The secure hardware environment further includes a first encryption device that performs a symmetric encryption of the secret key using the unique derived key. This symmetric encryption generates an encrypted secret key for use outside of the secure hardware environment.
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公开(公告)号：US11663365B2
公开(公告)日：2023-05-30
申请号：US16928901
申请日：2020-07-14
Inventor： Marc Benveniste , Fabien Journet , Fabrice Marinet
CPC classification number: G06F21/75 , G06F1/08 , G06F3/1238 , G06F21/44 , G06F21/72 , H04L9/3236 , H04L9/3247
Abstract: Authenticating a device using processing circuitry that generates fingerprints based on states of a plurality of nodes that are coupled to a plurality of circuits. A first fingerprint is generated at a first time based on first states of the plurality of nodes. A second fingerprint is generated at a second time based on second states of the plurality of nodes, the first fingerprint influencing the second states. Electronic data is obtained from the device to be authenticated. The electronic data is compared with a fingerprint generated and a determination whether to authorize operation of the device is made based on a result of the comparison.
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公开(公告)号：US11641191B2
公开(公告)日：2023-05-02
申请号：US17830864
申请日：2022-06-02
Applicant: STMicroelectronics S.r.l. , STMicroelectronics (Alps) SAS
Inventor： Antonino Conte , Marco Ruta , Michelangelo Pisasale , Thomas Jouanneau
Abstract: In an embodiment a ring oscillator circuit includes a chain of cascade-coupled inverter stages coupled between an oscillator supply voltage node and a reference voltage node, the oscillator supply voltage node configured to provide an oscillator supply voltage, a current generator circuit coupled between the oscillator supply voltage node and a system supply voltage node configured to provide a system supply voltage, the current generator circuit being configured to inject a current into the oscillator supply voltage node and a biasing circuit including a first bias control transistor and a second bias control transistor coupled in series between the reference voltage node and the oscillator supply voltage node, wherein the first bias control transistor is configured to selectively couple the reference voltage node and the oscillator supply voltage node in response to the oscillator control signal being indicative that the ring oscillator circuit is in an inactive operation state.
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165.发明授权公开(公告)号：US11610025B2
公开(公告)日：2023-03-21
申请号：US17161194
申请日：2021-01-28
Inventor： Gilles Pelissier , Nicolas Anquet , Delphine Le-Goascoz
Abstract: An integrated circuit includes a secure hardware environment having a first input that receives a key number. A key generation device generates a secret key from the key number and a unique key. A signature generation device generates a signature associated with the key number. A second input of the secure hardware environment receives encrypted binary data. A decryption device operates to decrypt the received encrypted binary data using the secret key. A third input the secure hardware environment receives an authentication signature. An authentication device authorizes use of the secret key to decrypt only if the signature generated by the signature generation device is identical to the authentication signature.
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Patent Agency Ranking
公开(公告)号：US20230056937A1
公开(公告)日：2023-02-23
申请号：US17881749
申请日：2022-08-05
Inventor： Danika Perrin , Sandrine Nicolas
IPC: H04B1/16
Abstract: In an embodiment an envelope detection device includes an input terminal configured to receive an amplitude-modulated radio frequency signal, a first resistive element and a first MOS transistor connected in parallel between the input terminal and a first node configured to receive a reference potential, a first capacitive element connected between a gate of the first MOS transistor and the first node, an envelope detection circuit connected to the input terminal and configured to supply a voltage representative of an envelope of the amplitude-modulated signal and a circuit for controlling the first MOS transistor configured to supply a first current to the gate of the first MOS transistor only when the voltage is smaller than a first threshold and draw a second current from the gate of the first MOS transistor only when the voltage is higher than a second threshold, the second threshold being higher than the first threshold.
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公开(公告)号：US20230018356A1
公开(公告)日：2023-01-19
申请号：US17812062
申请日：2022-07-12
Inventor： Hugo Gicquel , Sandrine Nicolas , Cedric Rechatin , Reiner Welk
IPC: H03F3/193
Abstract: In an embodiment an amplifier includes a first MOS transistor having a drain connected to an output of the amplifier and a source coupled to a first node configured to receive a first power supply potential, a first capacitive element connected between an input of the amplifier and a gate of the first MOS transistor, a first current source connecting the drain of the first MOS transistor to a second node configured to receive a second power supply potential and a resistive element and a second capacitive element connected in parallel between the gate and the drain of the first MOS transistor, the resistive element including a switched capacitor.
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公开(公告)号：US11533019B2
公开(公告)日：2022-12-20
申请号：US17180752
申请日：2021-02-20
Applicant: STMicroelectronics (Grenoble 2) SAS , STMicroelectronics S.r.l. , STMicroelectronics (Rousset) SAS , STMicroelectronics (Alps) SAS
Abstract: The present disclosure relates to an electronic device comprising a first capacitor and a quartz crystal coupled in series between a first node and a second node; an inverter coupled between the first and second nodes; a first variable capacitor coupled between the first node and a third node; and a second variable capacitor coupled between the second node and the third node.
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169.发明授权公开(公告)号：US11522360B2
公开(公告)日：2022-12-06
申请号：US17202566
申请日：2021-03-16
Applicant: STMicroelectronics (Alps) SAS
Inventor： Frederic Lebon , Laurent Chevalier
Abstract: An electronic circuit includes a switch coupled between an input terminal intended to receive a first voltage and an output terminal coupled to a decoupling capacitor and intended to also be coupled to a load. A comparison stage is configured to compare the first voltage and a second voltage that is present at the output terminal. A first adjustment stage is configured to limit a positive inrush current flowing between the input terminal and the output terminal and a second adjustment stage is configured to limit a negative inrush current flowing between the output terminal and the input terminal. A control circuit is configured to activate either the first adjustment stage or the second adjustment stage as a function of a result of the comparison.
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公开(公告)号：US11469671B2
公开(公告)日：2022-10-11
申请号：US17324782
申请日：2021-05-19
Applicant: STMicroelectronics (Alps) SAS
Inventor： Thomas Jouanneau
Abstract: The integrated circuit includes a first node intended to be biased at a first voltage, a second node intended to be biased at a second voltage and having a non-negligible capacitive coupling with the first node. A power supply management device comprises a voltage booster configured to boost a power supply voltage and comprising boost stages configured to generate intermediate voltages on intermediate nodes. A compatibility detection circuit is configured to detect compatibility between the second voltage and one of the intermediate voltages, and, if the second voltage is compatible with an intermediate voltage, to couple the at least one second node to the compatible intermediate node.
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