Patents Assigned to STMicroelectronics
  • Patent number: 12072372
    Abstract: A system, method, and device to test an electronic circuit are disclosed having a stage to supply a driving signal to a load comprising a pull-up switch and a pull-down switch and a pre-driver stage including pre-driver circuits. The electronic circuit including circuits for testing the pre-driver stage under the control of an automatic testing equipment (ATE) to operate a built-in self-test sequence including test commands for the pre-driver stage under the control of an external test signal issued by the ATE. The system includes a time measuring circuit to measure duration of signals at the output of the stage coupled to a pass-fail check circuit, and to evaluate if the duration of signals at the output of the stage to determine whether the output satisfies a pass criterion.
    Type: Grant
    Filed: September 6, 2022
    Date of Patent: August 27, 2024
    Assignee: STMicroelectronics S.r.l.
    Inventors: Matteo Brivio, Nicola De Campo, Matteo Venturelli
  • Patent number: 12072724
    Abstract: The present disclosure relates to a device comprising: N low drop-out voltage regulators, N being an integer greater than or equal to 1; a first circuit configured to deliver N set-point voltages to the N regulators which are proportional to the same first current; and a second circuit configured to deliver the first current, wherein the first current is proportional to a reference current modulated based on a sum of the inrush currents of the N regulators.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: August 27, 2024
    Assignee: STMicroelectronics (Grenoble 2) SAS
    Inventor: Alexandre Pons
  • Patent number: 12073897
    Abstract: A random access memory (RAM) includes an array of arranged in rows and columns. The rows of the storage elements correspond to respective memory locations of the RAM. The storage elements of a row have a common gated-clock input and respective data inputs, and each row of the array of storage elements includes a plurality of D type latches. In operation, an address input of the RAM receives a memory address identifying a memory location in the RAM. Clock gating circuitry of the RAM, generates respective gated-clock signals for the rows of the array of storage elements based on the memory address received at the address input. Memory operation are performed using storage elements of the array based on the gated-clock signals.
    Type: Grant
    Filed: April 13, 2023
    Date of Patent: August 27, 2024
    Assignee: STMICROELECTRONICS S.r.l.
    Inventor: Marco Casarsa
  • Patent number: 12074605
    Abstract: Provided is a time interleaving circuit to mitigate glitches. A first loading stage outputs first data representative of first serialized data. A second loading stage generates second serialized data. The second loading stage receives the first data output by the first loading stage. In response to the first data having a first state, the time interleaving circuit inverts the second serialized data to generate second data representative of the second serialized data. In response to the first data having a second state, the time interleaving circuit outputting the second data without inverting the second serialized data. Exclusive disjunction logic receives the second data and operates on the first data and the second data to generate output data.
    Type: Grant
    Filed: January 6, 2023
    Date of Patent: August 27, 2024
    Assignee: STMicroelectronics International N.V.
    Inventor: Aradhana Kumari
  • Patent number: 12072755
    Abstract: The present description concerns an electronic device having an antenna configured to receive a radio frequency signal. The electronic device further includes a control unit. The control unit is off, and the antenna receives a radio frequency signal. The antenna is configured to deliver a first voltage representative of the radio frequency signal to power the control unit with the voltage for the duration of the booting of the control unit.
    Type: Grant
    Filed: September 23, 2022
    Date of Patent: August 27, 2024
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Denis Roman, Jean-Louis Demessine, Lionel Chastillon, Renaud Lemonnier
  • Patent number: 12073860
    Abstract: According to an embodiment, a circuit includes a biasing and a low-frequency recovery circuit. The biasing circuit includes a voltage digital to analog converter (V-DAC), a differential difference amplifier coupled to the V-DAC, a common-mode feedback (CMFB) amplifier coupled to the differential difference amplifier, and a first pair of transistors arranged as a high-impedance structure and coupled to the differential difference amplifier and the CMFB amplifier. The low-frequency recovery circuit includes a current digital to analog converter (C-DAC), a second pair of transistors arranged as a high-impedance structure and coupled to the first pair of transistors, a pair of resistors having a resistance value equal to half a resistance of the resistive sensor, the pair of resistors arranged between the second pair of transistors and coupled to the C-DAC, and a gain circuit coupled to shared nodes between the second pair of transistors and the pair of resistors.
    Type: Grant
    Filed: March 28, 2023
    Date of Patent: August 27, 2024
    Assignee: STMicroelectronics S.r.l.
    Inventors: Dario Livornesi, Alessio Emanuele Vergani, Paolo Pulici, Francesco Piscitelli, Enrico Mammei, Mojtaba Mohammadi Abdevand, Piero Malcovati, Edoardo Bonizzoni
  • Patent number: 12075178
    Abstract: An image sensor includes a pixel array where each pixel is formed in a portion of a substrate electrically insulated from other portions of the substrate. Each pixel includes a photodetector; a transfer transistor; and a readout circuit comprising one or a plurality of transistors. The transistors of the readout circuit are formed inside and on top of at least one well of the portion. The reading from the photodetector of a pixel of a current row uses at least one transistor of the readout circuit of a pixel of at least one previous row, the well of the pixel of the previous row being biased with a first voltage greater than a second bias voltage of the well of the pixel of the current row.
    Type: Grant
    Filed: November 14, 2022
    Date of Patent: August 27, 2024
    Assignee: STMicroelectronics (Crolles 2) SAS
    Inventors: Francois Roy, Thomas Dalleau
  • Patent number: 12074100
    Abstract: The present disclosure is directed to a flat no-lead semiconductor package with a surfaced mounted structure. An end portion of the surface mounted structure includes a recessed member so that the surface mounted structure is coupled to leads of the flat no-lead semiconductor package through, among others, the sidewalls of the recessed members.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: August 27, 2024
    Assignee: STMicroelectronics, Inc.
    Inventors: Rennier Rodriguez, Aiza Marie Agudon, Maiden Grace Maming
  • Patent number: 12074242
    Abstract: Disclosed herein is an array of pixels. Each pixel includes a single photon avalanche diode (SPAD) and a transistor circuit. The transistor circuit includes a clamp transistor configured to clamp an anode voltage of the SPAD to be no more than a threshold clamped anode voltage, and a quenching element in series with the clamp transistor and configured to quench the anode voltage of the SPAD when the SPAD is struck by an incoming photon. Readout circuitry is coupled to receive the clamped anode voltage from the transistor circuit and to generate a pixel output therefrom, the threshold clamped anode voltage being below a maximum voltage rating of transistors forming the readout circuitry.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: August 27, 2024
    Assignee: STMicroelectronics (Research & Development) Limited
    Inventors: Mohammed Al-Rawhani, Neale Dutton, John Kevin Moore, Bruce Rae, Elisa Lacombe
  • Patent number: 12074663
    Abstract: A power transmitter includes: a first switch coupled between a first node and a reference voltage node; a second switch configured to be coupled between a power supply and the first node; a coil and a capacitor coupled in series between the first node and the reference voltage node; a first sample-and-hold (S&H) circuit having an input coupled to the first node; and a timing control circuit configured to generate a first control signal, a second control signal, and a third control signal that have a same frequency, where the first control signal is configured to turn ON and OFF the first switch alternately, the second control signal is configured to turn ON and OFF the second switch alternately, and where the third control signal determines a sampling time of the first S&H circuit and has a first pre-determined delay from a first edge of the first control signal.
    Type: Grant
    Filed: October 17, 2022
    Date of Patent: August 27, 2024
    Assignee: STMICROELECTRONICS ASIA PACIFIC PTE LTD.
    Inventor: Yannick Guedon
  • Patent number: 12075536
    Abstract: An embodiment LED driver system comprises a power transistor configured to be selectively activated for generating a driving current for an array of LEDs, the power transistor having a first conduction terminal coupled to the array of LEDs and a second conduction terminal coupled to a reference resistor; an operational amplifier having a non-inverting input for receiving a reference voltage, an inverting input coupled to the second conduction terminal of the power transistor, and an output terminal coupled to a first conduction terminal of a transmission gate having a second conduction terminal coupled to a control terminal of the power transistor and a control terminal for receiving an enable signal; and a slew rate control unit configured to control the slew rate of the driving current.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: August 27, 2024
    Assignee: STMicroelectronics S.r.l.
    Inventors: Maria Francesca Seminara, Salvatore Rosario Musumeci
  • Patent number: 12075236
    Abstract: A method for concealing a subscription identifier at a user equipment including a mobile equipment and an integrated circuit card storing the subscription identifier, the method including receiving a corresponding request by a server to provide a corresponding subscription identifier, performing an elliptical curve encryption of the subscription identifier generating a concealed subscription identifier, the concealing operation including the mobile equipment sending an identity retrieve command to the card, performing, before receiving the identity retrieve command at the card, a pre-calculation of the ephemeral key pair including an ephemeral private key and ephemeral public key and the shared secret key, and in response to the respective state of completion indicating that completion of the computation of a valid ephemeral key pair or shared secret key, storing the corresponding values of the ephemeral key pair and shared secret key in a table in a memory of the card.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: August 27, 2024
    Assignee: STMicroelectronics S.r.l.
    Inventors: Francesco Caserta, Amedeo Veneroso
  • Publication number: 20240282881
    Abstract: The present disclosure is directed to a sensor die with an embedded light sensor and an embedded light emitter as well as methods of manufacturing the same. The light emitter in the senor die is surrounded by a resin. The sensor die is incorporated into semiconductor device packages as well as methods of manufacturing the same. The semiconductor device packages include a first optically transmissive structure on the light sensor of the sensor die and a second optically transmissive structure on the light emitter of the sensor die. The first optically transmissive structure and the second optically transmissive structure cover and protect the light sensor and the light emitter, respectively. A molding compound is on a surface of a sensor die and covers sidewalls of the first and second optically transmissive structures on the sensor die.
    Type: Application
    Filed: April 29, 2024
    Publication date: August 22, 2024
    Applicant: STMICROELECTRONICS PTE LTD
    Inventor: Jing-En LUAN
  • Publication number: 20240281214
    Abstract: A method includes performing a cryptographic operation using a processing device. The performing the cryptographic operation includes protecting the performing of the cryptographic operation against side channel attacks by selecting a value amongst two values based on a selection bit. Selecting the value includes concatenating the two values in a register, generating a concatenated word including the two values in two distinct portions of the concatenated word in the register. The concatenated word is rotated according to the value of the selection bit to position the selected value in a determined portion of the concatenated word in the register amongst said two portions. The unselected value in the concatenated word is suppressed. One or more processing operations is performed based on a result of the cryptographic operation.
    Type: Application
    Filed: February 12, 2024
    Publication date: August 22, 2024
    Applicant: STMicroelectronics International N.V.
    Inventor: Thierry SIMON
  • Publication number: 20240281397
    Abstract: A hardware accelerator includes processing elements of a neural network, each processing element having a memory; a stream switch; stream engines coupled to functional circuits via the stream switch, wherein the stream engines, in operation, generate data streaming requests to stream data to and from functional circuits of the plurality of functional circuits; a first system bus interface coupled to the stream engines; a second system bus interface coupled to the processing elements; and mode control circuitry, which, in operation, sets respective modes of operation for the plurality of processing elements. The modes of operation include: a compute mode of operation in which the processing element performs computing operations using the memory associated with the processing element; and a memory mode of operation in which the memory associated with the processing element performs memory operations, bypassing the stream switch, via the second system bus interface.
    Type: Application
    Filed: March 29, 2023
    Publication date: August 22, 2024
    Applicant: STMicroelectronics International N.V.
    Inventors: Michele ROSSI, Giuseppe DESOLI, Thomas BOESCH
  • Publication number: 20240283357
    Abstract: A method and apparatus for controlling a converter are provided. In the method and apparatus, a controller determines a difference between an on-time and an off-time of a command signal representative of a switching signal of the converter. The controller generates a control signal based on the difference between the on-time and the off-time and compensates a first signal representative of a current of a resonant tank of the converter using the control signal. The controller generates the switching signal based on the compensated first signal.
    Type: Application
    Filed: February 22, 2023
    Publication date: August 22, 2024
    Applicant: STMicroelectronics International N.V.
    Inventor: Giulio Renato CORVA
  • Publication number: 20240281536
    Abstract: A method includes preserving custom objects and system objects of an application during an operative system update operation in a secure element. The custom objects and system objects are saved. The application is uninstalled and a new instance of the application is created. The saved custom objects and the saved system objects are recovered, and the new instance of the application is updated with the recovered custom objects and system objects. Saving a system object includes acquiring information content of fields of the system object, encoding and storing the information content into a data serialization format in a reserved area of a non-volatile memory of the secure element. Recovering the saved system object includes reading and decoding the encoded information content from the reserved area of the non-volatile memory of the secure element. The system object is recovered using the obtained information content of the fields.
    Type: Application
    Filed: February 9, 2024
    Publication date: August 22, 2024
    Applicant: STMICROELECTRONICS S.r.l.
    Inventors: Luca DI COSMO, Amedeo VENEROSO
  • Publication number: 20240281646
    Abstract: A hardware accelerator includes a plurality of functional circuits, a stream switch, and a plurality of stream engines. The stream engines are coupled to the functional circuits via the stream switch, and in operation, generate data streaming requests to stream data to and from the functional circuits. The functional circuits include at least one convolutional cluster, which includes a plurality of processing elements coupled together via a reconfigurable crossbar switch. The reconfigurable crossbar switch is coupled to the stream switch, and in operation, streams data to, from, and between processing elements of the processing cluster.
    Type: Application
    Filed: March 29, 2023
    Publication date: August 22, 2024
    Applicant: STMicroelectronics International N.V.
    Inventors: Michele ROSSI, Giuseppe DESOLI, Thomas BOESCH
  • Patent number: 12068026
    Abstract: A method of memory reset includes precharging bit lines of a memory array, asserting a signal at a reset node to remove the precharge voltage, and selecting write drivers associated with the bit lines associated with columns of the memory array that contain memory cells to be reset, with the assertion of the signal at the reset node also resulting in application of desired logic states to inputs of the selected write drivers to cause those selected write drivers to change a logic state of the bit lines associated with those write drivers. The method continues with asserting each word line associated with a row of the memory that contains memory cells to be reset to write desired logic states to all of the memory cells of the columns and rows of the memory to be reset during a single clock cycle, and then deasserting those word lines.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: August 20, 2024
    Assignee: STMicroelectronics International N.V.
    Inventors: Harsh Rawat, Praveen Kumar Verma
  • Patent number: 12068362
    Abstract: An electrode structure includes a pad of conductive material, and a conductive strip having a first end physically and electrically coupled to the pad. The pad includes an annular element internally defining a through opening. The first end of the conductive strip is physically and electrically coupled to the annular element by a transition region so that, when the conductive strip undergoes expansion by the thermal effect, a stress spreads from the conductive strip to the annular element by the transition region.
    Type: Grant
    Filed: October 5, 2021
    Date of Patent: August 20, 2024
    Assignee: STMICROELECTRONICS S.r.l.
    Inventors: Fabrizio Cerini, Silvia Adorno, Dario Paci, Marco Salina