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公开(公告)号：US20230055745A1
公开(公告)日：2023-02-23
申请号：US17407747
申请日：2021-08-20
Applicant: STMicroelectronics S.r.l.
Inventor： Davide Argento , Orazio Pennisi , Stefano Castorina , Vanni Poletto , Matteo Landini , Andrea Maino
Abstract: A system and method for measuring a capacitance value of a capacitor are provided. In embodiments, a resistor is coupled to a terminal of the capacitor. A difference in voltage at the terminal between a first time and a second time during a discharge routine of the capacitor is measured. The discharge routine includes sinking a current through a discharge circuit coupled to the resistor from first to second. Integration of a difference in voltage at terminals of the resistor during the discharge routine between the first and second times is also measured. The capacitance value is computed based on the measured difference in voltage, the measured integration, and the resistance value of the resistor. The health of the capacitor is determined based on a difference between the computed capacitance value and a threshold value.
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公开(公告)号：US11586907B2
公开(公告)日：2023-02-21
申请号：US16280960
申请日：2019-02-20
Inventor： Surinder Pal Singh , Giuseppe Desoli , Thomas Boesch
Abstract: Embodiments of a device include an integrated circuit, a reconfigurable stream switch formed in the integrated circuit, and an arithmetic unit coupled to the reconfigurable stream switch. The arithmetic unit has a plurality of inputs and at least one output, and the arithmetic unit is solely dedicated to performance of a plurality of parallel operations. Each one of the plurality of parallel operations carries out a portion of the formula: output=AX+BY+C.
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公开(公告)号：US20230045861A1
公开(公告)日：2023-02-16
申请号：US17871463
申请日：2022-07-22
Applicant: STMicroelectronics S.r.l.
Inventor： Fabio PASSANITI , Enrico Rosario ALESSI
IPC: B60W40/06 , B60W40/105 , G01R29/12 , G01R29/24
Abstract: A road condition detection device, to be coupled to the wheel of a vehicle, is provided with: an electrostatic charge variation sensor, to provide a charge variation signal indicative of an electrostatic charge variation associated with the rotation of the wheel; and a processing unit, coupled to the electrostatic charge variation sensor to receive the charge variation signal and furthermore for receiving a rotation speed signal indicative of the rotation speed of the wheel. In particular, the processing unit jointly processes the rotation speed signal and the charge variation signal to detect a road condition of a wet road condition and a dry road condition.
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244.发明授权公开(公告)号：US11581808B2
公开(公告)日：2023-02-14
申请号：US17244406
申请日：2021-04-29
Applicant: STMicroelectronics S.r.l.
Inventor： Enrico Ferrara , Luca Morinelli
Abstract: An embodiment buck converter control circuit comprises an error amplifier configured to generate an error signal based on a feedback signal and a reference signal, a pulse generator circuit configured to generate a pulsed signal having switching cycles set to high and low as a function of the error signal, a driver circuit configured to generate a drive signal for an electronic switch of the buck converter as a function of the pulsed signal, a variable load, connected between two output terminals of the buck converter, configured to absorb a current based on a control signal, and a detector circuit configured to monitor a first signal indicative of an output current provided by the buck converter and a second signal indicative of a negative transient of the output current, and verify whether the second signal indicates a negative transient of the output current.
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公开(公告)号：US20230045064A1
公开(公告)日：2023-02-09
申请号：US17881473
申请日：2022-08-04
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Enrico Rosario ALESSI , Fabio PASSANITI , Nunziata Ivana GUARNERI
Abstract: Voice command recognition and natural language recognition are carried out using an accelerometer that senses signals from the vibrations of one or more bones of a user and receives no audio input. Since word recognition is made possible using solely the signal from the accelerometer from a person's bone conduction as they speak, an acoustic microphone is not needed and thus not used to collect data for word recognition. According to one embodiment, a housing contains an accelerometer and a processor, both within the same housing. The accelerometer is preferably a MEMS accelerometer which is capable of sensing the vibrations that are present in the bone of a user as the user is speaking words. A machine learning algorithm is applied to the collected data to correctly recognize words spoken by a person with significant difficulties in creating audible language.
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Patent Agency Ranking
公开(公告)号：US20230036566A1
公开(公告)日：2023-02-02
申请号：US17868479
申请日：2022-07-19
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Daniele PRATI , Luca Giuseppe FALORNI , Luca GUERINONI
IPC: G01C19/5712
Abstract: The MEMS gyroscope is formed by a substrate, a first mass and a second mass, wherein the first and the second masses are suspended over the substrate and extend, at rest, in a plane of extension defining a first direction and a second direction transverse to the first direction. The MEMS gyroscope further has a drive structure coupled to the first mass and configured, in use, to cause a movement of the first mass in the first direction, and an elastic coupling structure, which extends between the first mass and the second mass and is configured to couple the movement of the first mass in the first direction with a movement of the second mass in the second direction. The elastic coupling structure has a first portion having a first stiffness and a second portion having a second stiffness greater than the first stiffness.
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247.发明申请公开(公告)号：US20230029120A1
公开(公告)日：2023-01-26
申请号：US17958761
申请日：2022-10-03
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Mikel AZPEITIA URQUIA , Giorgio ALLEGATO
Abstract: A semiconductor device for ambient sensing including: a cap traversed by a hole; and a main body mechanically coupled to the cap so as to delimit a cavity, which is interposed between the main body and the cap. The main body includes a semiconductor body and a coupling structure, which is interposed between the semiconductor body and the cap and laterally delimits a channel, which fluidically couples the cavity and the hole. The channel performs a mechanical filtering that is finer than the mechanical filtering performed by the hole.
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公开(公告)号：US20230023062A1
公开(公告)日：2023-01-26
申请号：US17867170
申请日：2022-07-18
Applicant: STMicroelectronics S.r.l.
Inventor： Enrico Rosario ALESSI , Fabio PASSANITI , Michele Alessio DELLUTRI
IPC: G06F1/3231 , G06F1/3296 , G06F1/3234
Abstract: A control method of an apparatus is provided. The apparatus includes a control unit coupled to a proximity sensor to detect a first distance of a user in a field of view, and coupled to a charge variation sensor to detect an electric/electrostatic charge variation caused by the user in a detection region. The control method includes acquiring a charge variation signal and generating charge variation parameters as a function of the charge variation signal. The control method further includes determining whether a condition on charge variation parameters is verified, and if the condition on charge variation parameters is verified, activating the proximity sensor and acquiring a proximity signal. Proximity parameters are generated as a function of the proximity signal. If a condition on proximity parameters is verified, one or more functionalities of the apparatus are activated.
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249.发明授权公开(公告)号：US11562950B2
公开(公告)日：2023-01-24
申请号：US17227030
申请日：2021-04-09
Applicant: STMicroelectronics S.r.l.
Inventor： Cristiano Gianluca Stella , Fabio Vito Coppone , Francesco Salamone
IPC: H01L23/495 , H01L23/48 , H01L23/34 , H01L23/28 , H01L21/00 , H05K7/20 , H05K7/18 , H01L23/31 , H01L23/00
Abstract: A power device for surface mounting has a leadframe including a die-attach support and at least one first lead and one second lead. A die, of semiconductor material, is bonded to the die-attach support, and a package, of insulating material and parallelepipedal shape, surrounds the die and at least in part the die-attach support and has a package height. The first and second leads have outer portions extending outside the package, from two opposite lateral surfaces of the package. The outer portions of the leads have lead heights greater than the package height, extend throughout the height of the package, and have respective portions projecting from the first base.
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250.发明申请公开(公告)号：US20230019116A1
公开(公告)日：2023-01-19
申请号：US17935542
申请日：2022-09-26
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Fabio CACCIOTTO
Abstract: A control circuit for a driving an electronic switch associated with a switching node of a flyback converter includes a comparison circuit configured to generate a switch-off signal by comparing a current measurement signal with a current measurement threshold signal. A valley detection circuit is configured to generate a trigger in a trigger signal when a valley signal indicates a valley in a voltage at the switching node of the flyback converter, and a blanking circuit is configured to generate a switch-on signal by combining the trigger signal with a timer signal provide by a timer circuit. The timer signal indicates whether a blanking time-interval has elapsed.
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