公开(公告)号：US11841497B2

公开(公告)日：2023-12-12

申请号：US17109929

申请日：2020-12-02

Applicant: Politecnico Di Milano ,  STMicroelectronics S.r.l.

Inventor： Paolo Frigerio ,  Giacomo Langfelder ,  Luca Molinari ,  Giuseppe Maiocchi ,  Andrea Barbieri

IPC: G02B26/08 ,  H04N9/31 ,  G09G3/02 ,  G05B5/01 ,  H03G1/00

CPC classification number: G02B26/0833 ,  G05B5/01 ,  G09G3/025 ,  H03G1/0005 ,  H04N9/3135

Abstract: Disclosed herein is a control system for a projection system, including a first subtractor receiving an input drive signal and a feedback signal and generating a first difference signal therefrom, the feedback signal being indicative of position of a quasi static micromirror of the projection system. A type-2 compensator receives the first difference signal and generates therefrom a first output signal. A derivative based controller receives the feedback signal and generates therefrom a second output signal. A second subtractor receives the first and second output signals and generates a second difference signal therefrom. The second difference signal serves to control a mirror driver of the projection system. A higher order resonance equalization circuit receives a pre-output signal from an analog front end of the projection system that is indicative of position of the quasi static micromirror, and generates the feedback signal therefrom.

公开(公告)号：US20230396407A1

公开(公告)日：2023-12-07

申请号：US18453018

申请日：2023-08-21

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Matteo QUARTIROLI ,  Paolo ROSINGANA

IPC: H04L7/00

CPC classification number: H04L7/0079

Abstract: A sensor includes detection circuitry and control circuitry coupled to the detection circuitry. The detection circuitry generates a detection signal indicative of a detected physical quantity. The control circuitry, in operation receives the detection signal and a frequency-indication signal, and generates a trigger signal based on the frequency-indication signal and a set of local reference signals. The sensor generates a digital output signal and a locking signal based on the trigger signal and the detection signal. The generating the digital output signal includes outputting a sample of the digital output signal based on the trigger signal. The locking signal is temporally aligned with the digital output signal.

公开(公告)号：US20230393198A1

公开(公告)日：2023-12-07

申请号：US18324583

申请日：2023-05-26

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Diego ALAGNA ,  Alessandro CANNONE

IPC: G01R31/3177 ,  G01R31/317 ,  G06F1/08

CPC classification number: G01R31/3177 ,  G06F1/08 ,  G01R31/31725

Abstract: A first circuit is coupled to a second circuit via a communication link. The first circuit generates a first validation signal, a second validation signal, and control signals, and transmits the first and second validation signals to the second circuit via the communication link. The second circuit validates the control signals based on the first and second binary validation signals. The validating includes: verifying that when the first validation signal has a first value, the second validation signal has a second value different from the first value; verifying that when the second validation signal has the first value, the first validation signal has the second value; verifying detection of a transition edge of the first validation signal within a threshold number of clock cycles; and verifying detection of a transition edge of the second validation signal within the threshold number of clock cycles.

公开(公告)号：US11834054B2

公开(公告)日：2023-12-05

申请号：US17470962

申请日：2021-09-09

Applicant: STMICROELECTRONICS S.r.l. ,  STMICROELECTRONICS, INC. ,  STMicroelectronics (Grand Ouest) SAS

Inventor： Nicola Matteo Palella ,  Leonardo Colombo ,  Andrea Donadel ,  Roberto Mura ,  Mahaveer Jain ,  Joëlle Philippe

IPC: B60W40/11 ,  B60W40/101 ,  B60W40/112 ,  B60W40/114 ,  G01S19/47

CPC classification number: B60W40/101 ,  B60W40/11 ,  B60W40/112 ,  B60W40/114 ,  G01S19/47 ,  B60W2520/28

Abstract: A system includes inertial sensors and a GPS. The system generates a first estimated vehicle velocity based on motion data and positioning data, generates a second estimated vehicle velocity based on the processed motion data and the first estimated vehicle velocity, and generates fused datasets indicative of position, velocity and attitude of a vehicle based on the processed motion data, the positioning data and the second estimated vehicle velocity. The generating the second estimated vehicle velocity includes: filtering the motion data, transforming the filtered motion data in a frequency domain based on the first estimated vehicle velocity, generating spectral power density signals, generating an estimated wheel angular frequency and an estimated wheel size based on the spectral power density signals, and generating the second estimated vehicle velocity as a function of the estimated wheel angular frequency and the estimated wheel size.

公开(公告)号：US20230389450A1

公开(公告)日：2023-11-30

申请号：US18305268

申请日：2023-04-21

Applicant: STMICROELECTRONICS S.r.l. ,  COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Paolo Giuseppe CAPPELLETTI ,  Gabriele NAVARRO

IPC: H10N70/20 ,  G11C13/00 ,  H10N70/00

CPC classification number: H10N70/231 ,  G11C13/0004 ,  G11C13/0069 ,  H10N70/8413 ,  H10N70/8828 ,  G11C2013/008

Abstract: Phase-change memory cells and methods of manufacturing and operating phase-change memory cells are provided. In at least one embodiment, a phase-change memory cell includes a heater and a stack. The stack includes at least one germanium layer or a nitrogen doped germanium layer, and at least one layer of a first alloy including germanium, antimony, and tellurium. A resistive layer is located between the heater and the stack.

公开(公告)号：US20230384837A1

公开(公告)日：2023-11-30

申请号：US18183464

申请日：2023-03-14

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Federico RIZZARDINI ,  Lorenzo BRACCO

IPC: G06F1/16 ,  H04M1/02 ,  G06F1/3246 ,  G01C1/00

CPC classification number: G06F1/1677 ,  H04M1/0245 ,  G06F1/3246 ,  G01C1/00 ,  G01C9/08

Abstract: The present disclosure is directed to a device and method for lid angle detection that is accurate even if the device is activated in an upright position. While the device is in a sleep state, first and second sensor units measure acceleration and angular velocity, and calculate orientations of respective lid components based on the acceleration and angular velocity measurements. Upon the device exiting the sleep state, a processor estimates the lid angle using the calculated orientations, sets the estimated lid angle as an initial lid angle, and updates the initial lid angle using, for example, two accelerometers; two accelerometers and two gyroscopes; two accelerometers and two magnetometers; or two accelerometers, two gyroscopes, and two magnetometers.

公开(公告)号：US11823750B2

公开(公告)日：2023-11-21

申请号：US17244450

申请日：2021-04-29

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

Inventor： Philippe Sirito-Olivier ,  Giovanni Luca Torrisi

IPC: G11C17/00 ,  G11C16/34 ,  G11C16/10 ,  G11C16/26 ,  G11C16/30

CPC classification number: G11C16/3454 ,  G11C16/105 ,  G11C16/26 ,  G11C16/30 ,  G11C17/00

Abstract: A method for writing into a one-time programmable memory of an integrated circuit includes attempting, by a memory control circuit of the integrated circuit, to write data in at least one first register of the one-time programmable memory; verifying, by the memory control circuit, whether the data has been correctly written in the at least one first register; and, in case the data has not been correctly written in the at least one first register, attempting, by the memory control circuit, to write the data in at least one second register of the one-time programmable memory.

公开(公告)号：US20230367342A1

公开(公告)日：2023-11-16

申请号：US17741994

申请日：2022-05-11

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Carmela MARCHESE ,  Rossella BASSOLI

IPC: G05F1/10

CPC classification number: G05F1/10

Abstract: A method and apparatus for performing dynamic current scaling of an input current of a voltage regulator are provided. The method and apparatus allow tuning current consumption in various applications, calculating a duration of an activity phase in which various algorithms are executed and activating dynamic current scaling of a regulator if the activity duration is shorter than a programmable threshold. A controller receives a threshold for an activity duration and a window size in which to evaluate the activity duration.

公开(公告)号：US20230361737A1

公开(公告)日：2023-11-09

申请号：US18303931

申请日：2023-04-20

Applicant: STMicroelectronics S.r.l.

Inventor： Gaetano Cosentino

IPC: H03F3/45 ,  H03F1/48 ,  H03F1/08

CPC classification number: H03F3/45475 ,  H03F3/45273 ,  H03F1/483 ,  H03F1/086

Abstract: A circuit an amplifier stage that amplifier stage includes a positive amplifier branch and a negative amplifier branch and has current flow paths therethrough cascaded in a flow line for a core current for the amplifier stage between a supply node and a ground node. The positive and negative amplifier branches have respective input nodes configured to receive an input signal applied therebetween. A current mirror loop can be coupled to the respective input nodes of the positive and negative amplifier branches and provides an adjustable high-impedance bias source for the core current for the amplifier stage. In addition to, or instead of the current mirror loop, the circuit can include stability network having a gain bandwidth range. The amplifier stage is configured to short-circuit the output signal from the amplifier stage within the gain bandwidth range based on an output voltage setting signal.

公开(公告)号：US20230361010A1

公开(公告)日：2023-11-09

申请号：US18140194

申请日：2023-04-27

Applicant: STMicroelectronics S.r.l.

Inventor： Riccardo VILLA

IPC: H01L23/495 ,  H01L23/31 ,  H01L23/36 ,  H01L21/56

CPC classification number: H01L23/49568 ,  H01L23/3121 ,  H01L23/36 ,  H01L21/56 ,  H01L23/49517

Abstract: A semiconductor chip or die is arranged on a first surface of a thermally conductive die pad of a substrate such as a leadframe. An encapsulation of insulating material in molded onto the die pad having the semiconductor die arranged on the first surface. At the second surface of the die pad, opposite the first surface, the encapsulation borders on the die pad at a borderline around the die pad. A recessed portion of the encapsulation is provided, for example, via laser ablation, at the borderline around the die pad. Thermally conductive material such as metal material is filled in the recessed portion of the encapsulation around the die pad. The surface area of the thermally conductive die pad is augmented by the filling of thermally conductive material in the recessed portion of the encapsulation thus improving thermal performance of the device.