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公开(公告)号：US11480988B2
公开(公告)日：2022-10-25
申请号：US15364454
申请日：2016-11-30
Applicant: STMicroelectronics (Alps) SAS
Inventor： Patrik Arno
Abstract: A device for controlling a first voltage with a second voltage includes a first terminal of application of the second voltage and a second terminal for supplying the first voltage. A comparator has a first input terminal connected to the first terminal and has a second input terminal receiving information representative of the first voltage. At least one first current source of programmable intensity is connected to the second input terminal of the comparator.
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公开(公告)号：US20220318439A1
公开(公告)日：2022-10-06
申请号：US17657212
申请日：2022-03-30
Inventor： Franck Albesa , Nicolas Anquet
Abstract: The present disclosure relates to a method for performing a cryptographic operation, the method including generating a first count value by a monotonic counter of a processing device, transmitting the first count value from the monotonic counter to a memory of the processing device, selecting a first encryption key from the memory based on the first count value, and providing the selected first encryption key to a cryptographic processor.
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公开(公告)号：US20220318434A1
公开(公告)日：2022-10-06
申请号：US17657020
申请日：2022-03-29
Inventor： Franck Albesa , Nicolas Anquet
IPC: G06F21/72 , H04L9/08 , G06F9/4401
Abstract: The present disclosure relates to a method for decrypting encrypted data. The method includes generating a first count value by a monotonic counter of a processing device, deriving, using a key derivation circuit, a first encryption key based on the first count value, transmitting the first encryption key to a cryptographic processor; and decrypting, based on the first encryption key, first encrypted data.
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公开(公告)号：US20220317719A1
公开(公告)日：2022-10-06
申请号：US17707321
申请日：2022-03-29
Inventor： Vratislav MICHAL , Regis ROUSSET
IPC: G05F3/30
Abstract: A band-gap circuit for generating a bandgap reference signal includes a first bipolar transistor and a second bipolar transistor of a same type among PNP and NPN types. The first and second bipolar transistors are configured to generate a current varying proportionally with the temperature. A capacitor is connected between a base and an emitter of one or both of the first and second bipolar transistors.
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公开(公告)号：US20220317184A1
公开(公告)日：2022-10-06
申请号：US17709053
申请日：2022-03-30
Inventor： Franck Albesa , Nicolas Anquet
IPC: G01R31/317 , G06F21/60 , G06F21/75
Abstract: In an embodiment a method for debugging a processing device includes generating, by a monotonic counter of the processing device, a first count value, transmitting, by the monotonic counter, the first count value to a debug access control circuit, comparing, by the debug access control circuit of the processing device, the first count value with one or more reference values and authorizing or preventing debug access, by the debug access control circuit, based on the comparison.
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Patent Agency Ranking
公开(公告)号：US11444591B2
公开(公告)日：2022-09-13
申请号：US16915766
申请日：2020-06-29
Applicant: STMicroelectronics SA , STMicroelectronics (Alps) SAS , STMicroelectronics razvoj polprevodnikov d.o.o.
Inventor： Kosta Kovacic , Christophe Grundrich , Bruno Leduc , Anton Stern
Abstract: A method for controlling a signal envelope shape of modulation pulses in a driver of a wireless transmitter includes supplying a first voltage to the driver during a non-modulated state, supplying a second voltage configurable by a configurable modulation index value to the driver during a modulated state, switching between the non-modulated state and the modulated state comprising setting the modulation index value to configure the second voltage level at the same level as the first voltage and then switching between supplying the first voltage to the driver and supplying the second voltage to the driver, and filtering to a limited bandwidth the variations of the second voltage resulting from configuring the modulation index value.
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公开(公告)号：US20220271663A1
公开(公告)日：2022-08-25
申请号：US17650463
申请日：2022-02-09
Applicant: STMicroelectronics S.r.I. , STMicroelectronics (Alps) SAS
Inventor： Francois Druilhe , Patrik Arno , Alessandro Inglese , Michele Alessandro Carrano
Abstract: A power supply system includes a voltage application source, and a switched mode power supply having an output coupled to the voltage application source through a first path and through a second path different from the first path. A first node is coupled to the output of the switched mode power supply, the switched mode power supply being configured to couple the first node to the voltage application source through the first path in a first operating mode and through the second path in a different second operating mode. A digital regulator is coupled to the first node. A digital circuit is coupled to an output of the digital regulator. An analog regulator is coupled to the first node and an analog circuit coupled to an output of the analog regulator.
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公开(公告)号：US20210384852A1
公开(公告)日：2021-12-09
申请号：US17323602
申请日：2021-05-18
Applicant: STMicroelectronics S.r.l. , STMicroelectronics Application GMBH , STMicroelectronics (Alps) SAS
Inventor： Aldo Occhipinti , Christophe Roussel , Fritz Burkhardt , Ignazio Testoni
IPC: H02P7/03 , H02P7/29 , H03K3/037 , H03K17/687 , E05F15/60
Abstract: An embodiment driver circuit comprises a power supply pin configured to receive a power supply voltage, and a set of control pins configured to provide a set of control signals for controlling switching of a set of switches of an h-bridge circuit comprising a pair of high-side switches and a pair of low-side switches. The driver circuit comprises control circuitry coupled to the control pins and configured to generate the control signals, and sensing circuitry coupled to the power supply pin and configured to generate a detection signal indicative of the power supply voltage exceeding a threshold value. The control circuitry is sensitive to the detection signal and is configured to generate the control signals to activate one of the pair of high-side switches and the pair of low-side switches and de-activate the other of the pair of high-side switches and the pair of low-side switches.
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公开(公告)号：US20210367619A1
公开(公告)日：2021-11-25
申请号：US17394118
申请日：2021-08-04
Inventor： Fabrice ROMAIN , Mathieu LISART , Patrick ARNOULD
Abstract: A datum is written to a memory, by splitting a binary word, representative of the datum and an error correcting or detecting code, into a first part and a second part. The first part is written at a logical address in a first memory circuit. The second part is written at the logical address in a second memory circuit. The error correcting or detecting code is dependent on both the datum and the logical address.
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80.发明申请公开(公告)号：US20210240863A1
公开(公告)日：2021-08-05
申请号：US17161544
申请日：2021-01-28
Inventor： Gilles PELISSIER , Nicolas ANQUET , Delphine LE-GOASCOZ
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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