公开(公告)号：US20250080060A1

公开(公告)日：2025-03-06

申请号：US18240091

申请日：2023-08-30

Applicant: STMICROELECTRONICS INTERNATIONAL N.V. ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  INSTITUT POLYTECHNIQUE DE BORDEAUX ,  UNIVERSITE DE BORDEAUX

Inventor： Sebastien SADLO ,  Nathalie DELTIMPLE ,  Andreia CATHELIN

IPC: H03F3/04 ,  H03F1/56

Abstract: An amplifier including a first amplification stage unit that includes a first transistor configured to modulate a first transistor threshold voltage using a first control voltage on a body of the first transistor, and a first direct current permitting feedback loop electrically coupling a drain of the first transistor with a gate of the first transistor. The amplifier may include a second amplification stage unit that includes a second transistor configured to modulate a second transistor threshold voltage using a second control voltage on a body of the second transistor, and a second direct current permitting feedback loop electrically coupling a drain of the second transistor with a gate of the second transistor.

公开(公告)号：US20250076473A1

公开(公告)日：2025-03-06

申请号：US18239558

申请日：2023-08-29

Applicant: STMicroelectronics International N.V.

Inventor： John Kevin MOORE

IPC: G01S7/4865 ,  G01S7/4863 ,  G01S17/10 ,  G01S17/894

Abstract: A time-of-flight (TOF) sensor includes a timing generator generating a timing reference, a first array of TOF-related components including rows of TOF-related components, with each row receiving the timing reference, and a dummy row of TOF-related components. The TOF sensor also includes a second array of TOF-related components including rows of TOF-related components, with each row receiving the timing reference, and a dummy row of TOF-related components. A first path delivers the timing reference to the rows of the first array, the first path passing from the timing generator, through the dummy row of TOF-related components in the second array, to the first array of TOF-related components. A second path delivers the timing reference to the rows of the second array, the second path passing from the timing generator, through the dummy row of TOF-related components in the first array, to the second array of TOF-related components.

公开(公告)号：US20250067803A1

公开(公告)日：2025-02-27

申请号：US18453045

申请日：2023-08-21

Applicant: STMicroelectronics International N.V.

Inventor： Sandeep Jain ,  Shalini Pathak

IPC: G01R31/3177

Abstract: According to an embodiment, a first aspect relates to a method for testing a scan chain. The method includes segmenting the scan chain into two or more segments; adding a respective multiplexer at end points of each segment, wherein each pair of sequential segment shares a common multiplexer in between; asserting a select signal at a select terminal of the multiplexers such that a relative position of the two or more segments is rearranged positionally in a rearranged scan chain; generating a test pattern to be communicated to an input terminal of the rearranged scan chain and observing a test result at an output of the rearranged scan chain; and determining a fault condition in the rearranged scan chain based on comparing the test result and an expected result.

公开(公告)号：US20250055272A1

公开(公告)日：2025-02-13

申请号：US18446956

申请日：2023-08-09

Applicant: STMicroelectronics International N.V.

Inventor： Andrea SPAMPINATO ,  Gianluigi FORTE

IPC: H02H7/122 ,  H02M7/5395

Abstract: Methods, systems, and devices for fault detection at pulse width modulation converters are described. An example of one such method includes receiving a first signal including a first pulse width modulation waveform. The first signal may be for controlling a switching component via a first node. A second signal may be received. The second signal may include a second pulse width modulation waveform. The second signal may be output by a second node of the switching component. One or more operations may be performed to compare the second signal with one or more other signals or one or more thresholds. A third signal may be transmitted based at least in part on the comparison of the second signal with the one or more other signals or thresholds. The third signal may indicate whether a fault has occurred at the switching component.

公开(公告)号：US20250053807A1

公开(公告)日：2025-02-13

申请号：US18779807

申请日：2024-07-22

Applicant: STMICROELECTRONICS INTERNATIONAL N.V. ,  STMICROELECTRONICS S.R.L

Inventor： Danilo Pietro PAU ,  Surinder Pal SINGH ,  Fabrizio Maria Aymone

IPC: G06N3/08 ,  G06N5/046

Abstract: The present disclosure relates to a method of training a neural network using a circuit comprising a memory and a processing device, an exemplary method comprising: performing a first forward inference pass through the neural network based on input features to generate first activations, and generating an error based on a target value, and storing the error to the memory; and performing, for each layer of the neural network: a modulated forward inference pass; before, during or after the modulated forward inference pass, a second forward inference pass based on the input features to regenerate one or more first activations; and updating one or more weights in the neural network based on the modulated activations and the one or more regenerated first activations.

公开(公告)号：US20250053246A1

公开(公告)日：2025-02-13

申请号：US18447147

申请日：2023-08-09

Applicant: STMicroelectronics International N.V.

Inventor： Stefano Paolo RIVOLTA ,  Federico RIZZARDINI ,  Lorenzo BRACCO

IPC: G06F3/0346 ,  G06F3/01

Abstract: The present disclosure is directed to lift-up gesture detection for electronic devices. An initial lift-up gesture is detected in response to an orientation change and a lift-up motion of the device being detected. The initial lift-up gesture is validated as a true lift-up gesture in a case where a shaking motion of the device is not being detected when the initial lift-up gesture is detected. If a shaking motion of the device is detected when the initial lift-up gesture is detected, the initial lift-up gesture is rejected.

公开(公告)号：US12223141B1

公开(公告)日：2025-02-11

申请号：US18446122

申请日：2023-08-08

Applicant: STMicroelectronics International N.V.

Inventor： Guodong Sun ,  Yue Ding ,  Yuan Yun Wang

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/047 ,  G06V40/12 ,  G06V40/13

Abstract: An example gesture detection method includes detecting at a first time a first touch on a touch panel, where the first touch covers a first area of the touch panel, and then determining whether the first touch is within a track region that surrounds a fingerprint sensing region. The method includes determining whether the first touch is within the fingerprint sensing region, the fingerprint sensing region including a sensing surface of a fingerprint sensor. The method includes determining a first fraction of the fingerprint sensing region covered by the first touch and determining whether the first fraction exceeds a first threshold. The first threshold is a majority of the fingerprint sensing region. The method includes determining a second fraction of all of the first area that is within the fingerprint sensing region and determining whether the second fraction exceeds a second threshold, where the second threshold is a fraction indicative of a majority of an area associated with the corresponding touch. The method includes based on determining that the second fraction exceeds the second threshold, determining whether the first touch is valid.

公开(公告)号：US20250044898A1

公开(公告)日：2025-02-06

申请号：US18365789

申请日：2023-08-04

Applicant: STMicroelectronics International N.V.

Inventor： Bin Fan ,  Pengcheng Wen

IPC: G06F3/041 ,  G06F3/044

Abstract: A method of operating a touch screen panel includes initiating a communication between the panel and an active pen and determining a touch zone of the panel. The touch zone includes communication channels that are operating by touch while bi-directional communication is occurring between the panel and active pen. Communications channels within the touch zone are disabled and communication between the panel and the active pen can occur while the communications channels within the touch zone are disabled. When it is determined that the communication between the panel and the active pen has stopped, communications channels continue to be disabled within the touch zone for a set time delay while no communication occurs between the panel and the active pen. After the set delay time, the communication channels within the touch zone are enabled.

公开(公告)号：US20250042718A1

公开(公告)日：2025-02-06

申请号：US18784719

申请日：2024-07-25

Applicant: STMicroelectronics International N.V.

Inventor： Manuel RIANI ,  Carlo VALZASINA ,  Gianfranco Javier YALLICO SANCHEZ ,  Luca GUERINONI

IPC: B81B3/00 ,  G01P15/125

Abstract: A MEMS (MicroElectroMechanical System) device includes: a supporting body; a movable mass, constrained to the supporting body by flexures so as to be able to oscillate in a main direction; an actuator device, configured to apply to the movable mass an electrostatic actuation force, transverse to the main direction; and a control circuit configured to detect stiction conditions, in which the movable mass is stuck to the supporting body by a stiction force, and for driving the actuator device in response to recognition of the stiction conditions. The actuation force is a variable force with an actuation frequency band containing at least one resonance frequency in a direction transverse to the main direction of a mechanical system comprising the movable mass stuck to the supporting body.

公开(公告)号：US20250040244A1

公开(公告)日：2025-01-30

申请号：US18776143

申请日：2024-07-17

Applicant: STMicroelectronics International N.V.

Inventor： Riccardo DEPETRO

IPC: H01L27/095 ,  H01L21/02 ,  H01L29/20 ,  H01L29/66 ,  H01L29/778

Abstract: A semiconductor electronic device is formed in a die having a substrate of semiconductor material of a first conductivity type. The device has a first electronic component based on heterostructure, which has a body structure of semiconductor material that extending, in the die, on the substrate, and an epitaxial multilayer extending in contact with the body structure and having a heterostructure. The body structure of the first electronic component has a first doped region of semiconductor material that extends between the heterostructure and the substrate and has a second conductivity type different from the first conductivity type.