Patents Assigned to STMicroelectronics S.A.
  • Publication number: 20230280227
    Abstract: A pressure sensor device is provided with: a pressure detection structure made in a first die of semiconductor material; a package, configured to internally accommodate the pressure detection structure in an impermeable manner, the package having a base structure and a body structure, arranged on the base structure, with an access opening in contact with an external environment and internally defining a housing cavity, in which the first die is arranged covered with a coating material. The pressure sensor device is also provided with a heating structure, accommodated in the housing cavity and for allowing heating of the pressure detection structure from the inside of the package.
    Type: Application
    Filed: February 17, 2023
    Publication date: September 7, 2023
    Applicant: STMICROELECTRONICS S.r.l.
    Inventors: Enri DUQI, Filippo DANIELE, Lorenzo BALDO, Giulio CAPELLI, Salvatore ALONGI
  • Publication number: 20230281142
    Abstract: A UART communication interface manages transmission/reception at a baud rate using a baud-rate detection circuit. An edge detector detects edges in a reception signal and resets a count value in a digital counter circuit indicating a time between two consecutive edges. In the absence of a detected edge, the digital counter circuit increases the count value. At a newly detected edge, a validation circuit verifies the count value by asserting a second control signal when the count value is smaller than a maximum, and otherwise de-asserting the second control signal. A register provides a threshold signal by storing the count value when the second control signal is asserted. The threshold signal stored by the register is updated when the time is in a permitted range corresponding to the duration of a single bit. The baud rate may be determined as a function of the threshold signal.
    Type: Application
    Filed: March 3, 2023
    Publication date: September 7, 2023
    Applicant: STMicroelectronics S.r.l.
    Inventors: Filippo MINNELLA, Gea DONZELLI
  • Publication number: 20230280933
    Abstract: A slave provides second data bits and ECC bits in response to a master read request. First data bits are generated by selecting between the second data bits and third data bits produced from error correcting the second data bits. The third data bits are generated with a delay of one clock cycle with respect to the second data bits. If an address of the read request is stored to a memory, a control signal is set indicating that the first data bits are invalid and this drives selection of the third data bits (with the first data bits now being valid in a following clock cycle). If an error signal is asserted when the address is not stored to the memory, action is taken to store the address to the memory and a further control signal is set to indicate that the read request should be repeated.
    Type: Application
    Filed: March 2, 2023
    Publication date: September 7, 2023
    Applicant: STMicroelectronics S.r.l.
    Inventor: Federico GOLLER
  • Patent number: 11747611
    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.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: September 5, 2023
    Assignees: STMicroelectronics (Research & Development) Limited, STMicroelectronics S.r.l.
    Inventors: Christopher Townsend, Roberto Carminati
  • Patent number: 11750234
    Abstract: A method for calibrating the DC operating point of a PWM receiver circuit is disclosed. The PWM receiving circuit includes an envelop detector having a first resistor string, and includes a bias circuit having a second resistor string and a plurality of switches. The second resistor string is coupled between a supply voltage and a reference voltage and functions as a voltage divider. Each switch, when closed, accesses a second voltage at a node of the second resistor string connected to the closed switch. To perform the calibration process, the plurality of switches is closed one at a time, and the second voltage is compared with a first voltage at a first node of the first resistor string. The switch that, when closed, produces the smallest difference between the first voltage and the second voltage remains closed after the calibration process, and is used for demodulating the PWM signal.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: September 5, 2023
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Nunzio Spina, Giuseppe Palmisano, Alessandro Castorina
  • Patent number: 11749588
    Abstract: A semiconductor device comprises at least one semiconductor die electrically coupled to a set of electrically conductive leads, and package molding material molded over the at least one semiconductor die and the electrically conductive leads. At least a portion of the electrically conductive leads is exposed at a rear surface of the package molding material to provide electrically conductive pads. The electrically conductive pads comprise enlarged end portions extending at least partially over the package molding material and configured for coupling to a printed circuit board.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: September 5, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Michele Derai, Roberto Tiziani
  • Patent number: 11747142
    Abstract: A device including microelectromechanical systems (MEMS) sensors are used in dead reckoning in conditions where Global Positioning System (GPS) signals or Global Navigation Satellite System (GNSS) signals are lost. The device is capable of tracking the location of the device after the GPS/GNSS signals are lost by using MEMS sensors such as accelerometers and gyroscopes. By calculating a misalignment angle between a forward axis of a sensor frame of the device and a forward axis of a vehicle frame using the data received from the MEMS sensors, the device can accurately calculate the location of a user or the vehicle of the device even without the GPS/GNSS signals. Accordingly, a device capable of tracking the location of the user riding in the vehicle in GPS/GNSS signals absent environment can be provided.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: September 5, 2023
    Assignees: STMICROELECTRONICS, INC., STMICROELECTRONICS S.r.l.
    Inventors: Mahaveer Jain, Mahesh Chowdhary, Roberto Mura, Nicola Matteo Palella, Leonardo Colombo
  • Patent number: 11750010
    Abstract: A method and apparatus for an active discharge of an X-capacitor are provided. A sensor signal, indicative of a voltage at the capacitor, is compared with a lower and upper threshold values. A first value of a smaller one of the lower and upper threshold values is increased to a first new value that is greater than a second value of a larger one of the lower and upper threshold values in response to a first control signal indicating the sensor signal is greater than the upper and lower threshold values. A third value of the greater one of the lower and upper threshold values is decreased to a second new value that is less than the value of the larger one of the lower and upper threshold values in response to a second control signal indicating the sensor signal is less than the upper and lower threshold values.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: September 5, 2023
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Massimiliano Gobbi, Ignazio Salvatore Bellomo, Domenico Tripodi, Antonio Borrello, Alberto Bianco
  • Patent number: 11747908
    Abstract: An embodiment method for controlling at least one functionality of an electronic device on the basis of a gesture of a user comprises detecting, by a sensor, a variation of electrostatic charge of the user during the execution of the gesture and generating a charge variation signal. The gesture includes moving at least one foot upward and, subsequently, downward. The method further includes, by a processing unit, acquiring the charge variation signal, detecting, in the charge variation signal, a characteristic identifying the gesture of moving the foot upward, detecting, in the charge variation signal, a characteristic identifying the gesture of moving the foot downward, and controlling the functionality of the electronic device only in the event that both the first and the second characteristics have been detected.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: September 5, 2023
    Assignee: STMICROELECTRONICS S.R.L
    Inventors: Fabio Passaniti, Enrico Rosario Alessi
  • Patent number: 11747398
    Abstract: The disclosure relates to a scan chain circuit comprising cascaded flip-flops having a functional input node and a test input node configured to be selectively coupled to logic circuitry at a clock edge time. A clock line is provided configured to distribute one or more clock signals to the flip-flops in the chain, wherein the flip-flops in the chain have active clock edges applied thereto at respective clock edge times. The chain of flip-flops comprise a set of flip-flops configured to receive an edge inversion signal and to selectively invert their active clock edges in response to the edge inversion signal being asserted.
    Type: Grant
    Filed: February 4, 2022
    Date of Patent: September 5, 2023
    Assignee: STMICROELECTRONICS S.r.l.
    Inventor: Marco Casarsa
  • Publication number: 20230273084
    Abstract: A pressure sensor device has: a pressure detection structure provided in a first die of semiconductor material; a package, configured to internally accommodate the pressure detection structure in an impermeable manner, the package having a base structure and a body structure, arranged on the base structure, with an access opening in contact with an external environment and internally defining a housing cavity, in which the first die is arranged covered with a coating material. A piezoelectric transduction structure, of a ultrasonic type, is accommodated in the housing cavity, in order to allow detection of foreign material above the coating material and within the package. In particular, the piezoelectric transduction structure is integrated in the first die, which comprises a first portion, wherein the pressure detection structure is integrated, and a second portion, separate and distinct from the first portion, wherein the piezoelectric transduction structure is integrated.
    Type: Application
    Filed: February 17, 2023
    Publication date: August 31, 2023
    Applicant: STMICROELECTRONICS S.r.l.
    Inventors: Domenico GIUSTI, Enri DUQI
  • Patent number: 11740088
    Abstract: A microelectromechanical gyroscope includes: the support structure; a sensing mass, coupled to the support structure with degrees of freedom along a driving direction and a sensing direction perpendicular to each other; and a calibration structure facing the sensing mass and separated from the sensing mass by a gap having an average width, the calibration structure being movable with respect to the sensing mass so that displacements of the calibration structure cause variations in the average width of the gap. A calibration actuator controls a relative position of the calibration structure with respect to the sensing mass and the average width of the gap.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: August 29, 2023
    Assignee: STMICROELECTRONICS S.r.l.
    Inventors: Luca Guerinoni, Luca Giuseppe Falorni
  • Patent number: 11742311
    Abstract: An electronic device has a plurality of integrated circuits fixed to a support between transmitting and receiving antennas. An integrated circuit generates a synchronization signal supplied to the other integrated circuits. Each integrated circuit is formed in a die integrating electronic components and overlaid by a connection region according to the Flip-Chip Ball-Grid-array or embedded Wafer Level BGA. A plurality of solder balls for each integrated circuit is electrically coupled to the electronic components and bonded between the respective integrated circuit and the support. The solder balls are arranged in an array, aligned along a plurality of lines parallel to a direction, wherein the plurality of lines comprises an empty line along which no solder balls are present. A conductive synchronization path is formed on the support and extends along the empty line of at least one integrated circuit, between the solder balls of the latter.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: August 29, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Angelo Scuderi, Nicola Marinelli
  • Patent number: 11742049
    Abstract: A device includes a set of processing circuits arranged in subsets, a set of data memory banks coupled to a memory controller, a control unit, and an interconnect network. The processing circuits are configurable to read first input data from the data memory banks via the interconnect network and the memory controller, process the first input data to produce output data, and write the output data into the data memory banks via the interconnect network and the memory controller. The hardware accelerator device includes a set of configurable lock-step control units which interface the processing circuits to the interconnect network. Each configurable lock-step control unit is coupled to a subset of processing circuits and is selectively activatable to operate in a first operation mode, or in a second operation mode.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: August 29, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Giampiero Borgonovo, Lorenzo Re Fiorentin
  • Patent number: 11742757
    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.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: August 29, 2023
    Assignees: STMicroelectronics (Alps) SAS, STMicroelectronics S.r.l.
    Inventors: Francois Druilhe, Patrik Arno, Alessandro Inglese, Michele Alessandro Carrano
  • Patent number: 11740136
    Abstract: A circuit includes a first input terminal, a second input terminal, a third input terminal and an output terminal. A first summation node adds signals at the first and third input terminals. A second summation node subtracts signals at the second and third input terminals. A selector selects between the added signals and subtracted signals in response to a selection signal. The output of the selector is integrated to generate an integrated signal. The integrated signal is compared by a comparator to a threshold, the comparator generating an output signal at the output terminal having a first level and a second level. Feedback of the output signal produces the selection signal causing the selector to select the added signals in response to the first level of the output signal and causing the selector to select the subtracted signals in response to the second level of the output signal.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: August 29, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Michele Vaiana, Paolo Pesenti, Mario Chiricosta, Calogero Marco Ippolito, Mario Maiore
  • Patent number: 11742789
    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.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: August 29, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Nicola Errico, Vanni Poletto, Paolo Vilmercati, Marco Cignoli
  • Patent number: 11742421
    Abstract: A field effect transistor has a semiconductor layer with a top surface extending in a horizontal plane, and an active area defined in which are trench gate regions, which extend in depth with respect to the top surface and have an insulating coating layer and a conductive inner layer, and source regions, adjacent to the trench gate regions so as to form a conductive channel extending vertically. The trench gate regions have a plurality of first gate regions, which extend in length in the form of stripes through the active area along a first direction of the horizontal plane, and moreover a plurality of second gate regions, which extend in length in the form of stripes through the same active area along a second direction of the horizontal plane, orthogonal to, and crossing, the first gate regions. In particular, the first gate regions and second gate regions cross in the active area, joining with a non-zero curvature radius.
    Type: Grant
    Filed: July 18, 2022
    Date of Patent: August 29, 2023
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Salvatore Privitera, Davide Giuseppe Patti
  • Patent number: 11740870
    Abstract: A Multiple Accumulate (MAC) hardware accelerator includes a plurality of multipliers. The plurality of multipliers multiply a digit-serial input having a plurality of digits by a parallel input having a plurality of bits by sequentially multiplying individual digits of the digit-serial input by the plurality of bits of the parallel input. A result is generated based on the multiplication of the digit-serial input by the parallel input. An accelerator framework may include multiple MAC hardware accelerators, and may be used to implement a convolutional neural network. The MAC hardware accelerators may multiple an input weight by an input feature by sequentially multiplying individual digits of the input weight by the input feature.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: August 29, 2023
    Assignees: STMICROELECTRONICS S.r.l., STMicroelectronics International N.V.
    Inventors: Giuseppe Desoli, Thomas Boesch, Carmine Cappetta, Ugo Maria Iannuzzi
  • Publication number: 20230266382
    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 (HS) or low-side (LS) driver channels. The integrated circuit includes, for each driver channel, a respective on-state test circuit and a respective controller. The on-state test circuits can be selectively configured to test for HS overcurrent conditions, LS overcurrent conditions, HS open load conditions, and LS open load conditions.
    Type: Application
    Filed: February 23, 2022
    Publication date: August 24, 2023
    Applicant: STMICROELECTRONICS S.R.L.
    Inventors: Gaudenzia BAGNATI, Stefano CASTORINA, Valerio BENDOTTI