公开(公告)号：US11755095B2

公开(公告)日：2023-09-12

申请号：US17379743

申请日：2021-07-19

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Stefano Paolo Rivolta ,  Roberto Mura ,  Marco Bianco

IPC: G06F1/32 ,  G06F1/3231 ,  G01R29/12 ,  G01P15/14

CPC classification number: G06F1/3231 ,  G01P15/14 ,  G01R29/12

Abstract: The present disclosure is directed to a device configured to detect whether the device is in a bag or being taken out of the bag. The device determines whether the device is in a bag or being taken out of the bag based on motion measurements generated by a motion sensor and electrostatic charge measurements generated by an electrostatic charge sensor. By using both distance measurements and motion measurements, the device is able to detect whether the device is in the bag or being taken out of the bag with high efficiency, accuracy, and robustness.

公开(公告)号：US20230280189A1

公开(公告)日：2023-09-07

申请号：US18314650

申请日：2023-05-09

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Luca GUERINONI ,  Gabriele GATTERE

IPC: G01C25/00 ,  G01C19/72

CPC classification number: G01C25/005 ,  G01C19/726

Abstract: A gyroscopic sensor unit detects a phase drift between a demodulated output signal and demodulation signal during output of a quadrature test signal. A delay calculator detects the phase drift based on changes in the demodulated output signal during application of the quadrature test signal. A delay compensation circuit compensates for the phase drift by delaying the demodulation signal by the phase drift value.

公开(公告)号：US11747611B2

公开(公告)日：2023-09-05

申请号：US17124027

申请日：2020-12-16

Applicant: STMicroelectronics (Research & Development) Limited ,  STMicroelectronics S.r.l.

Inventor： Christopher Townsend ,  Roberto Carminati

IPC: G02B26/10 ,  G01S17/894 ,  G02B26/08

CPC classification number: G02B26/101 ,  G01S17/894 ,  G02B26/0858

Abstract: An optical module includes an optical detector, laser emitter, and first and second support structures, each carried by a substrate. An optical layer includes first and second fixed portions carried by the support structures, a movable portion affixed between the fixed portions by a spring structure, and a lens system carried by the movable portion, the lens system including an objective lens and a beam shaping lens. The optical layer includes a comb drive with a first comb structure extending from the first fixed portion to interdigitate with a second comb structure extending from the movable portion, a third comb structure extending from the second fixed portion to interdigitate with a fourth comb structure extending from the movable portion, and actuation circuitry applying voltages to the comb structures to cause the movable portion of the optical layer to oscillate back and forth between the fixed portions.

公开(公告)号：US11747608B2

公开(公告)日：2023-09-05

申请号：US16847514

申请日：2020-04-13

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Enri Duqi ,  Dario Paci ,  Lorenzo Baldo ,  Domenico Giusti

IPC: G02B26/08 ,  B81B3/00 ,  H01L27/146

CPC classification number: G02B26/08 ,  B81B3/0018 ,  H01L27/14627 ,  B81B2201/047

Abstract: A MEMS optical device including: a semiconductor body; a main cavity, which extends within the semiconductor body; a membrane suspended over the main cavity; a piezoelectric actuator, which is mechanically coupled to the membrane and can be electronically controlled so as to deform the membrane; a micro-lens, mechanically coupled to the membrane so as to undergo deformation following the deformation of the membrane; and a rigid optical element, which contacts the micro-lens and is arranged so that the micro-lens is interposed between the rigid optical element and the membrane. The micro-lens and the main cavity are arranged on opposite sides of the membrane.

公开(公告)号：US11742789B2

公开(公告)日：2023-08-29

申请号：US17535176

申请日：2021-11-24

Applicant: STMicroelectronics S.r.l.

Inventor： Nicola Errico ,  Vanni Poletto ,  Paolo Vilmercati ,  Marco Cignoli

IPC: H02P27/12 ,  H02P27/08

CPC classification number: H02P27/12 ,  H02P27/085

Abstract: In an embodiment, an electronic circuit includes: a controller configured to produce a pulse-width-modulated (PWM) signal to control a first current of an electrical load; a redundant current measurement circuit configured to measure the first current and provide first and second current measurement signal; a monitor circuit coupled to the redundant current measurement circuit, the monitor circuit configured to assert a current monitor signal in response to the first and second current measurement signals being found to be matching with each other, wherein the monitor circuit is configured to: detect an absence of the asserted current monitor signal prior to expiry of a threshold time interval, and in response to detecting the absence of the asserted current monitor signal, force the controller to produce, prior to expiry of the threshold time interval, a first PWM signal pulse having a controlled duty-cycle.

公开(公告)号：US11742757B2

公开(公告)日：2023-08-29

申请号：US17650463

申请日：2022-02-09

Applicant: STMicroelectronics S.r.l. ,  STMicroelectronics (Alps) SAS

Inventor： Francois Druilhe ,  Patrik Arno ,  Alessandro Inglese ,  Michele Alessandro Carrano

IPC: H02M3/158 ,  H02M1/36 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M1/36 ,  H02M1/0045

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.

公开(公告)号：US20230266381A1

公开(公告)日：2023-08-24

申请号：US17678763

申请日：2022-02-23

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Gaudenzia BAGNATI ,  Marzia ANNOVAZZI ,  Diego ALAGNA ,  Lucia MAGGIO

IPC: G01R31/28 ,  H03K17/687 ,  H03K21/08 ,  H03K5/24

CPC classification number: G01R31/2851 ,  H03K17/6874 ,  H03K21/08 ,  H03K5/24 ,  G01R31/52

Abstract: An integrated circuit includes a plurality of power transistor driver channels for driving external loads. The driver channels can be selectively configured as high side or low side driver channels. The integrated circuit includes, for each driver channel, a respective analog test circuit and a respective controller. The integrated circuit includes a single counter connected to each of the controllers for simultaneously controlling off-state diagnosis timing windows for the driver channels.

公开(公告)号：US20230261100A1

公开(公告)日：2023-08-17

申请号：US18167623

申请日：2023-02-10

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Ferdinando IUCOLANO ,  Andrea SEVERINO ,  Giuseppe GRECO ,  Fabrizio ROCCAFORTE

IPC: H01L29/778 ,  H01L29/16 ,  H01L29/66

CPC classification number: H01L29/7786 ,  H01L29/1608 ,  H01L29/66462

Abstract: A manufacturing process forms an HEMT device. For the manufacturing process includes forming, from a wafer of silicon carbide having a surface, an epitaxial layer of silicon carbide on the surface of the wafer A semiconductive heterostructure is formed on the epitaxial layer, and the wafer of silicon carbide is removed.

公开(公告)号：US20230259433A1

公开(公告)日：2023-08-17

申请号：US17670055

申请日：2022-02-11

Applicant: STMicroelectronics S.r.l.

Inventor： Enea Dimroci ,  Francesca Giacoma Mignemi ,  Roberta Priolo ,  Marco Leo ,  Francesco Battini

IPC: G06F11/26

CPC classification number: G06F11/26

Abstract: A method to test an asynchronous finite state machine for faults, the method including disabling state transitions out of a state of the asynchronous finite state machine and inputting test data to the AFSM to trigger a transition from the state to an expected state. The method further including enabling transitions out of the state of the asynchronous finite state machine, and determining whether the asynchronous finite state machine has performed a successful transition to the expected state.

公开(公告)号：US11717825B2

公开(公告)日：2023-08-08

申请号：US16231251

申请日：2018-12-21

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Davide Cucchi ,  Lorenzo Bruno ,  Francesco Ferrara

IPC: B01L3/00 ,  F16K99/00 ,  B01L7/00 ,  B01L9/00

CPC classification number: B01L3/502738 ,  B01L7/5255 ,  B01L9/527 ,  F16K99/003 ,  F16K99/0015 ,  F16K99/0046 ,  F16K99/0053 ,  B01L2200/027 ,  B01L2400/043 ,  B01L2400/0633 ,  B01L2400/0638

Abstract: The valve is formed in a valve body housing a first path portion, a second path portion, and an coupling zone between the first and second path portions. A shutter is arranged in the coupling zone and has a shutting portion of ferromagnetic material that is deformable under the action of an external magnetic field between an undeformed position, wherein the shutter closes the coupling zone, and a deformed position, wherein the shutter at least partially frees the coupling zone. The shutting portion of the shutter is formed by a rubber membrane incorporating particles, for example of ferrite particles.