公开(公告)号：US20210151599A1

公开(公告)日：2021-05-20

申请号：US17096697

申请日：2020-11-12

Applicant: STMicroelectronics S.r.l.

Inventor： Angelo MAGRI' ,  Stefania FORTUNA

IPC: H01L29/78 ,  H01L29/06 ,  H01L29/10 ,  H01L29/40 ,  H01L21/265 ,  H01L21/765 ,  H01L29/66

Abstract: A power MOSFET device includes an active area accommodating a first body region and a second body region having a first and, respectively, a second conductivity value. The second value is higher than the first value. A first channel region is disposed in the first body region between a first source region and a drain region, and the first channel region has and having a first channel length. A second channel region is disposed in the second body region between a second source region and the drain region, and the second channel region has and having a second channel length smaller than the first channel length. A first device portion, having a first threshold voltage, includes the first channel region, and a second device portion, having a second threshold voltage higher than the first threshold voltage, includes the second channel region.

公开(公告)号：US11001061B2

公开(公告)日：2021-05-11

申请号：US14981701

申请日：2015-12-28

Applicant: STMicroelectronics S.r.l.

Inventor： Dino Faralli ,  Laura Maria Castoldi ,  Paolo Ferrari ,  Marta Carminati

IPC: B41J2/16 ,  B41J2/14 ,  H01L21/02 ,  H01L21/311 ,  H01L21/285 ,  C23C16/34

Abstract: Methods for manufacturing a microfluidic delivery device comprising a semiconductor structure, such as silicon, are provided. In particular, the structure for delivering fluid may be formed from polycrystalline silicon, also called polysilicon, or epitaxial silicon. The microfluidic delivery device that predominantly uses semiconductor material, such as silicon, to form the structures that are in contact with the dispensed fluid results in a device that is compatible with a wide set of fluids and applications.

公开(公告)号：US20210135568A1

公开(公告)日：2021-05-06

申请号：US16671002

申请日：2019-10-31

Applicant: STMicroelectronics S.R.L.

Inventor： Alberto Bianco ,  Giuseppe Scappatura ,  Francesco Ciappa

IPC: H02M3/156 ,  H02M3/07

Abstract: An electronic device includes a circuit board that manages supply of electricity to the electronic device. The circuit board includes an integrated circuit and an external capacitor coupled to a supply terminal of the circuit board. During a startup operation of the integrated circuit, the integrated circuit supplies a first charging current to charge the capacitor to a supply voltage value. The circuit board includes a boost circuit that receives a portion of the first charging current and outputs a second charging current that augments charging of the capacitor. The second charging current is an amplification of the first charging current. The integrated circuit enables operation of the electronic device after the capacitor is charged to the supply voltage value.

公开(公告)号：US20210126643A1

公开(公告)日：2021-04-29

申请号：US17078945

申请日：2020-10-23

Applicant: STMicroelectronics S.r.l.

Inventor： Domenico TRIPODI

IPC: H03L7/081 ,  H03L7/24 ,  G06F1/08

Abstract: A time measurement includes a multiphase clock generator and a phase sampling circuit. The multiphase clock generator generates a sequence of a given number n of phase shifted clock phases, wherein one of the phase shifted clock phases represents a reference clock signal. The phase sampling circuit is configured to generate a phase value indicative of a number of fractions 1/n of the clock period of the clock phases elapsed between an edge of the reference clock signal and an instant when an asynchronous event signal is set. The phase sampling circuit includes first through fourth sub-circuits, which respectively generate or determine first through fourth control signals.

公开(公告)号：US20210126627A1

公开(公告)日：2021-04-29

申请号：US17077833

申请日：2020-10-22

Applicant: STMicroelectronics S.r.l.

Inventor： Domenico TRIPODI ,  Luca GIUSSANI ,  Simone Ludwig DALLA STELLA

IPC: H03K3/017

Abstract: A PWM signal generator circuit includes a multiphase clock generator that generates a number n of phase-shifted clock phases having the same clock period and being phase shifted by a time corresponding to a fraction 1/n of the clock period. The PWM signal generator circuit determines for each switch-on duration first and second integer numbers, and for each switch-off duration third and fourth integer numbers. The first integer number is indicative of the integer number of clock periods of the switch-on duration and the second integer number is indicative of the integer number of the additional fractions 1/n of the clock period of the switch-on duration. The third integer number is indicative of the integer number of clock periods of the switch-off duration, and the fourth integer number is indicative of the integer number of the additional fractions 1/n of the clock period of the switch-off duration.

公开(公告)号：US10987007B2

公开(公告)日：2021-04-27

申请号：US16167817

申请日：2018-10-23

Applicant: STMicroelectronics S.r.l.

Inventor： Francesco Rundo ,  Sabrina Conoci ,  Piero Fallica

IPC: A61B5/02 ,  A61B5/024 ,  A61B5/04 ,  B60W40/08 ,  G16H50/30 ,  A61B5/00 ,  A61B5/0402

Abstract: A method of processing electrophysiological signals includes: receiving, over a limited time duration, sample electrocardiography (ECG) signals indicative of heart pulsatile activity occurring with a variable heart rate, wherein receiving the sample ECG signals is discontinued at an expiry of the limited time duration; receiving photoplethysmography (PPG) signals indicative of the heart pulsatile activity; determining a correlation between the sample ECG signals and the PPG signals; determining reconstructed ECG signals from the PPG signals as a function of the correlation between the sample ECG signals and the PPG signals; and estimating a heart rate variability of the variable heart rate as a function of the reconstructed ECG signals.

公开(公告)号：US20210119105A1

公开(公告)日：2021-04-22

申请号：US17070548

申请日：2020-10-14

Applicant: STMicroelectronics S.r.l.

Inventor： Luca SEGHIZZI ,  Federico VERCESI ,  Claudia PEDRINI

IPC: H01L41/083 ,  H01L41/113 ,  H01L41/25 ,  H01L41/35

Abstract: A transducer includes a supporting body and a suspended structure mechanically coupled to the supporting body. The suspended structure has a first and a second surface opposite to one another along an axis, and is configured to oscillate in an oscillation direction having at least one component parallel to the axis. A first piezoelectric transducer is disposed on the first surface of the suspended structure, and a second piezoelectric transducer is disposed on the second surface of the suspended structure.

公开(公告)号：US20210117501A1

公开(公告)日：2021-04-22

申请号：US17071577

申请日：2020-10-15

Applicant: STMicroelectronics S.r.l.

Inventor： Alessandro Paolo BRAMANTI

IPC: G06F17/16 ,  G01P15/18 ,  G01R33/00 ,  G01V7/06

Abstract: A method and system for rotating a vector, including at least one lookup table (LUT) including data corresponding to the vector being rotated around a first angle and a second angle, processing circuitry configured for accessing the at least one LUT for incrementally rotating the vector around the first and second angles, where accessing includes identifying an LUT input entry and selecting a corresponding LUT output entry, the corresponding output entry including an incremental angular rotation (IAR) of the vector around the first angle or the second angle, and a comparator configured to generate a comparator signal based upon comparing a counter incremented by the IAR with the first angle or the second angle, the processing circuitry further configured to iteratively access the at least one LUT, based on the comparator signal, for completing the incremental rotation of the vector around the first angle and the second angle.

公开(公告)号：US20210117011A1

公开(公告)日：2021-04-22

申请号：US17116921

申请日：2020-12-09

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Carlo CRIPPA ,  Rossella BASSOLI

IPC: G06F3/01 ,  G06F9/448 ,  G06F1/16 ,  G05B19/042

Abstract: A programmable data processing circuit is configured for receiving sensor signals indicative of gestures for identification by the processing circuit. The processing circuit applies to the sensor signals finite state machine processing resources to provide identification output signals indicative of gestures identified as a function of the sensor signals. A plurality of finite state machine processing programs loaded into the processing circuit include a data section and an instruction section. The data section including a fixed size part specifying respective processing resources used by the programs in the plurality of finite state machine processing programs and a variable size part with respective sizes for allocating the respective processing resources used by the programs in the plurality of finite state machine processing programs. The instruction section including conditions and commands for execution by the respective processing resources used by the programs by operating on data located in the respective data sections.

公开(公告)号：US20210117010A1

公开(公告)日：2021-04-22

申请号：US17067519

申请日：2020-10-09

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Federico RIZZARDINI ,  Lorenzo BRACCO ,  Stefano Paolo RIVOLTA

IPC: G06F3/01 ,  G06F1/16 ,  G01P15/14

Abstract: An electronic device has an input which, in operation, receives an input stream of accelerometer data samples indicative of acceleration values along at least one axis. The devices includes circuitry, coupled to the input. The circuitry, in operation, executes an automatic-learning algorithm on blocks of samples of the input stream of accelerometer data samples to identify, for each block, a corresponding condition-of-user-movement from among a plurality of determined conditions-of-user-movement. The circuitry generates a plurality of streams of samples based on the input stream of accelerometer data samples, and for each condition of movement identified, selects a corresponding stream of samples of the plurality of streams of samples. The circuitry executes a wrist-tilt gesture detection algorithm using samples of the selected stream of the plurality of streams of samples.