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公开(公告)号：US11455433B2
公开(公告)日：2022-09-27
申请号：US16579442
申请日：2019-09-23
Applicant: STMicroelectronics (Grand Ouest) SAS
Inventor： Arnaud Rosay , Gerald Lejeune , Jean Nicolas Graux , Olivier Claude LeBreton
Abstract: In one embodiment, a system on chip includes a dynamic voltage and frequency scaling (DVFS) power supply, a secure environment, a non-secure environment, and a power supply management control module. The secure environment is configured to generate a secure instruction defining a permitted operating point of voltage and frequency for the DVFS power supply. The non-secure environment is configured to generate a request to modify the DVFS power supply, where the request to modify includes a voltage-frequency operating point. The power supply management control module is configured to scale the DVFS power supply to the permitted operating point, in response to the request to modify the DVFS power supply.
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公开(公告)号：US20220197828A1
公开(公告)日：2022-06-23
申请号：US17457569
申请日：2021-12-03
Applicant: STMicroelectronics (Grand Ouest) SAS
Inventor： Frederic Ruelle
Abstract: A system includes a processing unit, a memory configured to store at least one first group of instructions and one second group of instructions for execution by the processing unit, the processing unit being configured to sequentially extract from the memory instructions of the first group and instructions of the second group for their execution. The system also includes a controller including a first auxiliary memory configured to store a protection criterion, a comparator configured to compare the storage address of each extracted instruction with the protection criterion, and a control circuit configured to, in response to the storage address meeting the protection criterion, trigger a protection mechanism including at least one prohibition for the processing unit to execute again at least one portion of the instructions of the first group, during the execution of the instructions of the second group.
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公开(公告)号：US20220156217A1
公开(公告)日：2022-05-19
申请号：US17587954
申请日：2022-01-28
Inventor： Loic Pallardy , Nicolas Saux
IPC: G06F13/40 , G06F13/362
Abstract: A system including a first port configured to simultaneously couple with a first device and a second device; and a management circuit configured to route a data signal received from a first controller to the first device in response to receiving a first-device direction from the first controller and route the data signal received from the first controller to the second device in response to receiving a second-device direction from the first controller unless an override condition for the management circuit is satisfied.
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公开(公告)号：US20220140734A1
公开(公告)日：2022-05-05
申请号：US17648471
申请日：2022-01-20
Applicant: STMicroelectronics (Grand Ouest) SAS
Inventor： Lionel Cimaz
Abstract: An embodiment DC to DC conversion circuit comprises a DC to DC converter and a regulation circuit. The regulation circuit comprises a comparator configured to detect, during a discharge phase of the DC to DC converter, an overshoot period during which an output voltage of the DC to DC converter exceeds a target voltage, and a timer configured to measure a duration of the overshoot period.
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公开(公告)号：US11303199B2
公开(公告)日：2022-04-12
申请号：US16854483
申请日：2020-04-21
Applicant: STMicroelectronics (Grand Ouest) SAS
Inventor： Lionel Cimaz
Abstract: A method for limiting an input or output current of a DC-DC converter and a current limiting circuit are disclosed. In an embodiment a method for limiting an input or output current of a DC to DC converter includes storing a first value representative of a level of an output voltage of the DC to DC converter in response to the input or output current exceeding or falling below a first threshold and modifying a control signal based on the first value.
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Patent Agency Ranking
公开(公告)号：US20220069627A1
公开(公告)日：2022-03-03
申请号：US17461305
申请日：2021-08-30
Inventor： Lionel Cimaz , Antonio Borrello , Simone Ludwig Dalla Stella
Abstract: The present disclosure relates to a device comprising an inductive element and a first capacitive element series connected between a first node and a second node, a first MOS transistor connected between the first node and a third node configured to receive a reference potential, the second node being coupled directly or via a second MOS transistor to the third node, a second capacitive element connected between a fourth node and an interconnection node between the first capacitive element and the inductive element, a current generator configured to provide an AC current to the fourth node, and a switch connected between the fourth node and the third node.
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公开(公告)号：US20210211366A1
公开(公告)日：2021-07-08
申请号：US17209539
申请日：2021-03-23
Applicant: STMicroelectronics (Grand Ouest) SAS
Inventor： Frederic Ruelle
IPC: H04L12/26 , G06F1/3209 , G08B21/02 , G06N20/00 , G08B1/08 , G06F1/3234 , G06F21/55 , H04L29/06
Abstract: A method for monitoring an activity of a connected object including a monitoring device, includes: performing, by a measurement stage of the monitoring device, a first periodic measurement of an internal signal representative of an activity of the connected object; performing, by a computation stage of the monitoring device, a first non-cryptographic computation of an activity parameter representative of the activity from the internal signal measured during the first periodic measurement; comparing, by a comparison stage of the monitoring device, between the activity parameter on completion of the first non-cryptographic computation and a range of settings of corresponding to the activity parameter; and triggering, by a control stage of the monitoring device, a safety action in response to a determination that the activity parameter is outside of the range of settings.
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98.发明授权公开(公告)号：US10924016B2
公开(公告)日：2021-02-16
申请号：US16160446
申请日：2018-10-15
Applicant: STMicroelectronics (Grand Ouest) SAS
Inventor： Christophe Belet
Abstract: A USB Type-C device supporting a bidirectional power supply, includes: a first device terminal configured to be coupled to a second USB Type-C device; a second device terminal configured to be coupled to a rechargeable DC voltage power source; and a reversible switched-mode power supply coupled to the first device terminal and the second device terminal.
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99.发明授权公开(公告)号：US10733455B2
公开(公告)日：2020-08-04
申请号：US15692777
申请日：2017-08-31
Applicant: STMicroelectronics (Grand Ouest) SAS
Inventor： Jerome Bourgeais , Michel Catrouillet , Jean Philippe Romain , Laurent Conseil
Abstract: An embodiment method for controlling a physical object to be shared by several potential users and in an enclosure in an open state or in a closed state includes detecting a presence or an absence of the object in the enclosure in the closed state via a first wireless link between the object and a reader situated in the enclosure, the first wireless link being contained in the enclosure in the closed state. The method also includes transmitting a first information item representative of the presence or of the absence of the object in the enclosure to a computer server via a second link and an internet network, the computer server being accessible via a website configured to be managed by an administrator.
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公开(公告)号：US20190305601A1
公开(公告)日：2019-10-03
申请号：US16352248
申请日：2019-03-13
Applicant: STMicroelectronics (Grand Ouest) SAS
Inventor： Lionel Cimaz
Abstract: A method for transmitting power includes providing power using a contactless power transfer from a transmitter to a receiver that is mutually coupled with the transmitter. The method also includes managing and regulating the contactless power transfer being provided, where the managing and regulating are integrally and autonomously performed by the transmitter
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