Patents Assigned to STMicroelectronics S.A.
  • Publication number: 20230028797
    Abstract: A closed-loop microelectromechanical accelerometer includes a substrate of semiconductor material, an out-of-plane sensing mass and feedback electrodes. The out-of-plane sensing mass, of semiconductor material, has a first side facing the supporting body and a second side opposite to the first side. The out-of-plane sensing mass is also connected to the supporting body to oscillate around a non-barycentric fulcrum axis parallel to the first side and to the second side and perpendicular to an out-of-plane sensing axis. The feedback electrodes are capacitively coupled to the sensing mass and are configured to apply opposite electrostatic forces to the sensing mass.
    Type: Application
    Filed: July 15, 2022
    Publication date: January 26, 2023
    Applicant: STMicroelectronics S.r.l.
    Inventors: Gabriele GATTERE, Jean Marie DARMANIN, Francesco RIZZINI, Carlo VALZASINA
  • Publication number: 20230023062
    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.
    Type: Application
    Filed: July 18, 2022
    Publication date: January 26, 2023
    Applicant: STMicroelectronics S.r.l.
    Inventors: Enrico Rosario ALESSI, Fabio PASSANITI, Michele Alessio DELLUTRI
  • Publication number: 20230029120
    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.
    Type: Application
    Filed: October 3, 2022
    Publication date: January 26, 2023
    Applicant: STMICROELECTRONICS S.r.l.
    Inventors: Mikel AZPEITIA URQUIA, Giorgio ALLEGATO
  • Publication number: 20230024534
    Abstract: A microfluidic dispenser device of inhalable substances includes a casing, housed in which are a driving circuit and a microfluidic cartridge having a tank that contains a liquid to be delivered. The microfluidic cartridge is provided with at least one nebulizer controlled by the driving device. The nebulizer includes: a substrate; a plurality of chambers formed on the substrate and fluidically coupled to the tank for receiving the liquid to be delivered; and a plurality of heaters, which are formed on the substrate in positions corresponding to respective chambers, are thermally coupled to the respective chambers and are separated from the respective chambers by an insulating layer, and are controlled by the driving device. Each chamber is fluidically connected with the outside by at least one respective nozzle.
    Type: Application
    Filed: October 3, 2022
    Publication date: January 26, 2023
    Applicant: STMICROELECTRONICS S.r.l.
    Inventors: Oriana Rita Antonia DI MARCO, Domenico GIUSTI
  • Publication number: 20230027724
    Abstract: A wireless device includes an energy harvester and an energy storage that operate in a sequence of energy harvesting cycles to alternately harvest energy and release energy for supplying the wireless device. The wireless device also includes a processing circuit and a wireless communication circuit. A configuration method for the wireless device includes first step where a base station receives a signal from the wireless device indicating wireless communication circuit entry into a receiving operation mode. In a second step, the base station transmits configuration data to the wireless device. The received configuration data is temporarily stored in a memory area of the wireless communication circuit. In a third step, the temporarily stored configuration data is transmitted from the wireless communication circuit to the processing circuit for storage in a memory area. The second and third steps are carried out during distinct energy harvesting cycles of the wireless device.
    Type: Application
    Filed: July 11, 2022
    Publication date: January 26, 2023
    Applicant: STMicroelectronics S.r.l.
    Inventor: Roberto LA ROSA
  • Publication number: 20230025202
    Abstract: A detection method of a user of an apparatus is provided in which the apparatus is coupled to a charge variation sensor having a control unit and an electrode to detect an electric/electrostatic charge variation of the user. The detection method includes acquiring, through the electrode, a charge variation signal indicative of the presence of the user. A filtered signal is generated by filtering the charge variation signal. A feature signal is generated as a function of the filtered signal. A movement signal indicative of a movement of the user is generated as a function of the feature signal. A presence signal indicative of the presence of the user is generated as a function of the movement signal.
    Type: Application
    Filed: July 18, 2022
    Publication date: January 26, 2023
    Applicant: STMicroelectronics S.r.l.
    Inventors: Federico RIZZARDINI, Lorenzo BRACCO
  • Publication number: 20230023149
    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.
    Type: Application
    Filed: July 19, 2021
    Publication date: January 26, 2023
    Applicant: STMICROELECTRONICS S.r.l.
    Inventors: Stefano Paolo RIVOLTA, Roberto MURA, Marco BIANCO
  • Publication number: 20230028024
    Abstract: A process for manufacturing electroacoustic modules including: forming an assembly with a redistribution structure and a plurality of dice arranged in a dielectric region; forming a wafer with a semiconductor body and a plurality of respective unit portions laterally staggered, each of which includes a respective supporting region, set in contact with the semiconductor body, and a number of actuators; reducing the thickness of the semiconductor body and then selectively removing portions of the semiconductor body so as to singulate, starting from the wafer, a plurality of transduction structures, each including a semiconductor substrate, which contacts a corresponding supporting region and is traversed by cavities delimited by portions of the supporting region that form membranes mechanically coupled to the actuators; and then coupling the transduction structures to the redistribution structure of the assembly.
    Type: Application
    Filed: July 15, 2022
    Publication date: January 26, 2023
    Applicant: STMICROELECTRONICS S.r.l.
    Inventors: Mark Andrew SHAW, Marco DEL SARTO
  • Publication number: 20230021993
    Abstract: The present disclosure relates to a method for sanitization of a surface by emission of a plurality of sanitization wavelengths, and to a device for implementing the method. The method comprises emitting light using first LEDs configured to emit the sanitization wavelengths, receiving, by a circuit, a feedback signal from a light sensor indicating a light intensity received by the light sensor during the light emission, and controlling the first LEDs with the circuit based on the feedback signal.
    Type: Application
    Filed: July 8, 2022
    Publication date: January 26, 2023
    Applicants: STMICROELECTRONICS (GRENOBLE 2) SAS, STMICROELECTRONICS S.r.l.
    Inventors: Salim BOUCHENE, Jean CAMIOLO, Roberto LA ROSA
  • Patent number: 11563319
    Abstract: Disclosed herein is a single integrated circuit chip with a main logic that operates a vehicle component such as a valve driver. Isolated from the main logic within the chip is a safety area that operates to verify proper operation of the main logic. The safety area is internally powered by an internal regulated voltage generated by an internal voltage regulator that generates the internal regulated voltage from an external voltage while protecting against shorts of the external line delivering the external voltage. The safety area includes protection circuits that level shift external analog signals downward in voltage for monitoring within the safety area, the protection circuits serving to protect against shorts of the external line delivering the external analog signals.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: January 24, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Marco Cignoli, Nicola Errico, Paolo Vilmercati, Stefano Castorina, Enrico Ferrara
  • Patent number: 11562115
    Abstract: Embodiments are directed towards a configurable accelerator framework device that includes a stream switch and a plurality of convolution accelerators. The stream switch has a plurality of input ports and a plurality of output ports. Each of the input ports is configurable at run time to unidirectionally pass data to any one or more of the output ports via a stream link. Each one of the plurality of convolution accelerators is configurable at run time to unidirectionally receive input data via at least two of the plurality of stream switch output ports, and each one of the plurality of convolution accelerators is further configurable at run time to unidirectionally communicate output data via an input port of the stream switch.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: January 24, 2023
    Assignees: STMICROELECTRONICS S.r.l., STMICROELECTRONICS INTERNATIONAL N.V.
    Inventors: Thomas Boesch, Giuseppe Desoli
  • Patent number: 11562950
    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.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: January 24, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Cristiano Gianluca Stella, Fabio Vito Coppone, Francesco Salamone
  • Patent number: 11561237
    Abstract: A circuit configured to sense an input analog signal generated by a sensor at a first frequency and to generate an output digital signal indicative of the sensed input analog signal. The circuit includes a conditioning circuit, an ADC, a feedback circuit, and a low-pass filter. The conditioning circuit is configured to receive the input analog signal and to generate a conditioned analog signal. The ADC is configured to provide a converted digital signal based on the conditioned analog signal. The feedback circuit includes a band-pass filter configured to selectively detect a periodic signal at a second frequency higher than the first frequency and to act on the conditioning circuit to counter variations of the periodic signal at the second frequency. The low-pass filter is configured to filter out the periodic signal from the converted digital signal to generate the output digital signal.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: January 24, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventor: Marco Zamprogno
  • Patent number: 11560886
    Abstract: A micropump device is formed in a monolithic semiconductor body integrating a plurality of actuator elements arranged side-by-side. Each actuator element has a first chamber extending at a distance from a first face of the monolithic body; a membrane arranged between the first face and the first chamber; a piezoelectric element extending on the first face over the membrane; a second chamber, arranged between the first chamber and a second face of the monolithic body; a fluidic inlet path fluidically connecting the second chamber with the outside of the monolithic body; and a fluid outlet opening extending in a transverse direction in the monolithic body from the second face as far as the second chamber, through the first chamber. The monolithic formation of the actuator elements and the possibility of driving the actuator elements at different voltages enable precise adjustment of flows, from very low values to high values.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: January 24, 2023
    Assignee: STMICROELECTRONICS S.r.l.
    Inventors: Domenico Giusti, Lorenzo Baldo, Enri Duqi
  • Patent number: 11561663
    Abstract: A touchscreen resistive sensor includes a network of resistive sensor branches coupled to a number of sensor nodes arranged at touch locations of the touchscreen. A test sequence is performed by sequentially applying to each sensor node a reference voltage level, jointly coupling to a common line the other nodes, sensing a voltage value at the common line, and declaring a short circuit condition as a result of the voltage value sensed at the common line reaching a short circuit threshold. A current value level flowing at the sensor node to which the reference voltage level is applied is sensed and a malfunction of the resistive sensor branch coupled with the sensor node to which a reference voltage level is applied is generated as a result of the current value sensed at the sensor node reaching an upper threshold or lower threshold.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: January 24, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Calogero Marco Ippolito, Angelo Recchia, Antonio Cicero, Pierpaolo Lombardo, Michele Vaiana
  • Publication number: 20230019116
    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.
    Type: Application
    Filed: September 26, 2022
    Publication date: January 19, 2023
    Applicant: STMICROELECTRONICS S.R.L.
    Inventor: Fabio CACCIOTTO
  • Publication number: 20230017265
    Abstract: One or more keys are derived from a master key by executing a plurality of encryption operations. A first encryption operation uses the master key to encrypt a plaintext input having a plurality of bytes. Multiple intermediate encryption operations are performed using a respective intermediate key generated by a previous encryption operation to encrypt respective plaintext inputs having a number of bytes. At least two bytes of a plaintext input have values based on a respective set of bits of a plurality of sets of bits of an initialization vector, wherein individual bits of the respective set of bits are introduced into respective individual bytes of the plaintext input and the respective set of bits has at least two bits and at most a number of bits equal to the number of bytes of the plaintext input.
    Type: Application
    Filed: July 5, 2022
    Publication date: January 19, 2023
    Applicant: STMICROELECTRONICS S.r.l.
    Inventor: Ruggero SUSELLA
  • Publication number: 20230016168
    Abstract: A first node of converter circuit receives an input, provides an output at a second node, and has a third node coupled by an inductance to ground. A first switch has a current path between the first and third nodes and a second switch has a current path between the third and second nodes. The converter circuit operates in a first state (with the first switch conductive and the second switch non-conductive) and a second state (with the first switch non-conductive and the second switch conductive). Current flowing through the first switch is sensed during the first state to produce a sensing signal indicative of inductance current. The sensing signal is averaged to produce an averaged sensing signal indicative of an average value of the current. The averaged sensing signal is then weighted by a time during which the second switch is conductive to produce a weighted signal.
    Type: Application
    Filed: July 13, 2022
    Publication date: January 19, 2023
    Applicant: STMicroelectronics S.r.l.
    Inventors: Stefano RAMORINI, Giuseppe CALDERONI
  • Publication number: 20230019422
    Abstract: Various embodiments of the present disclosure provide a read/write device for a hard-disk memory system. The read/write device includes a fixed structure; a membrane region including a first and a second membrane, which are constrained to the fixed structure, and a central portion, interposed between the first and second membranes; a first and a second piezoelectric actuator, mechanically coupled, respectively, to the first and second membranes; and a read/write head, which is fixed to the central portion of the membrane region. The first and second piezoelectric actuators can be controlled so as to cause corresponding deformations of the first and second membranes, said deformations of the first and second membranes causing corresponding movements of the read/write head with respect to the fixed structure.
    Type: Application
    Filed: September 21, 2022
    Publication date: January 19, 2023
    Applicant: STMICROELECTRONICS S.r.l.
    Inventors: Domenico GIUSTI, Marco FERRERA
  • Patent number: 11557340
    Abstract: In an embodiment, a method includes receiving, between a positive input terminal and a negative input terminal, a supply voltage, receiving a data signal, generating, by a voltage generator in a branch of a plurality of branches, a branch current as a function of a respective driving signal and of a regulated voltage, each branch connected between the positive input terminal and the negative input terminal, selectively activating the voltage generator as a function of a respective enabling signal and providing, between a positive output terminal and a negative output terminal, the regulated voltage to one or more driving circuits.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: January 17, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Michele La Placa, Fabio Enrico Carlo Disegni, Federico Goller