公开(公告)号：US20200177083A1

公开(公告)日：2020-06-04

申请号：US16680084

申请日：2019-11-11

Applicant: STMicroelectronics S.r.l.

Inventor： Osvaldo Enrico Zambetti

IPC: H02M3/158 ,  G01R31/327

Abstract: A converter includes two switching stages coupled in series between positive and negative input terminals. A control circuit is configured for driving the switching stages based on an output voltage of the converter. A first switching stage includes two switches coupled in series between a positive input terminal and a first node. A capacitor and an inductor are coupled in series between the two switches and a positive output terminal. A third switch is coupled between a node between the capacitor and the inductor and the negative input terminal. A second capacitor is coupled between the first node and the negative input terminal. A second switching stage includes a second node coupled to the first node. Two additional electronic switches are coupled in series between the second node and the negative input terminal. A second inductor is coupled between the two additional switches and the positive output terminal.

公开(公告)号：US10674578B1

公开(公告)日：2020-06-02

申请号：US16584059

申请日：2019-09-26

Applicant: STMicroelectronics S.r.l.

Inventor： Ignazio Cala′ ,  Salvatore Pantano ,  Santi Carlo Adamo

IPC: G06F3/00 ,  H05B45/10 ,  H03K3/42 ,  H05B47/18 ,  G06F9/30 ,  G06F9/38

Abstract: A circuit includes: a communication interface configured to receive data; a plurality of output terminals; a bank of input registers coupled to the communication interface; a bank of buffer registers; a bank of output registers; a signal generator configured to generate a plurality of output signals based on respective registers of the bank of output registers at respective output terminals; and a conversion stage configured to: when data is received by the bank of input registers from the communication interface, sequentially convert content of the input registers of the bank of input registers and store the converted content into corresponding buffer registers of the bank of buffer registers based on a conversion function, and when the conversion stage finishes storing the converted content into the buffer registers, simultaneously copy content from the buffer registers into corresponding output registers of the bank of output registers.

公开(公告)号：US20200161980A1

公开(公告)日：2020-05-21

申请号：US16748328

申请日：2020-01-21

Applicant: STMicroelectronics S.r.l.

Inventor： Alessandro PARISI ,  Nunzio GRECO ,  Nunzio SPINA ,  Egidio RAGONESE ,  Giuseppe PALMISANO

IPC: H02M3/335 ,  H02M3/337 ,  H02M3/338 ,  H03B5/12 ,  H01F27/28 ,  H01F19/08 ,  H04L27/08 ,  H02M1/08

Abstract: A DC-DC converter includes a transformer having primary and secondary windings, a power oscillator applying an oscillating signal to the primary winding to transmit a power signal to the secondary winding, a rectifier obtaining an output DC voltage by rectifying the power signal at the secondary winding, and comparison circuitry generating an error signal representing a difference between the output DC voltage and a reference voltage value. A transmitter connected to the secondary winding performs an amplitude modulation of the power signal at the secondary winding to transmit an amplitude modulated power signal to the primary winding, the amplitude modulation based upon the error signal and modulating a stream of data to the primary winding. A receiver coupled to the primary winding demodulates the amplitude modulated power signal to recover the error signal and the stream of data. An amplitude of the oscillating signal is controlled by the error signal.

公开(公告)号：US20200156114A1

公开(公告)日：2020-05-21

申请号：US16684289

申请日：2019-11-14

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Gabriele GATTERE ,  Carlo VALZASINA ,  Federico VERCESI ,  Giorgio ALLEGATO

IPC: B06B1/06 ,  B81B7/00 ,  B81C1/00

Abstract: An ultrasonic MEMS acoustic transducer formed in a body of semiconductor material having first and second surfaces opposite to one another. A first cavity extends in the body and delimits at the bottom a sensitive portion, which extends between the first cavity and the first surface of the body. The sensitive portion houses a second cavity and forms a membrane that extends between the second cavity and the first surface of the body. An elastic supporting structure extends between the sensitive portion and the body and is suspended over the first cavity.

公开(公告)号：US20200148530A1

公开(公告)日：2020-05-14

申请号：US16730480

申请日：2019-12-30

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Enri DUQI ,  Bruno MURARI ,  Sebastiano CONTI

IPC: B81B3/00 ,  B81B7/00

Abstract: A packaged pressure sensor, comprising: a MEMS pressure-sensor chip; and an encapsulating layer of elastomeric material, in particular PDMS, which extends over the MEMS pressure-sensor chip and forms a means for transferring a force, applied on a surface thereof, towards the MEMS pressure-sensor chip.

公开(公告)号：US20200145019A1

公开(公告)日：2020-05-07

申请号：US16675051

申请日：2019-11-05

Applicant: STMicroelectronics S.r.l.

Inventor： Marta Gómez Correa ,  Fabio Dell'Orto ,  Muhammad Umair Saeed

IPC: H03M3/04 ,  H04B14/06 ,  G10L19/04 ,  G10L19/005 ,  H03M7/36 ,  G10L19/008

Abstract: In an embodiment, a method includes: receiving an audio frame; decomposing the received audio frame into M sub-band pulse-code modulation (PCM) audio frames, where M is a positive integer number; predicting a PCM sample of one sub-band PCM audio frame of the M sub-band PCM audio frames; comparing the predicted PCM sample with a corresponding received PCM sample to generate a prediction error sample; comparing an instantaneous absolute value of the prediction error sample with a threshold; and replacing the corresponding received PCM sample with a value based on the predicted PCM sample when the instantaneous absolute value of the prediction error sample is greater than the threshold.

公开(公告)号：US10602029B2

公开(公告)日：2020-03-24

申请号：US15941717

申请日：2018-03-30

Applicant: STMicroelectronics LTD ,  STMicroelectronics S.r.l.

Inventor： Eli Yaser ,  Massimo Ratti ,  Naomi Petrushevsky

IPC: H04N5/06 ,  H04N7/01 ,  H04N9/31

Abstract: Described herein is a video projection system including an optical module with at least one collimated light source to generate a light beam and at least one movable mirror to reflect the light beam. The video projection system also includes a video source producing a digital video stream in accordance with a clock signal and a movement synchronization signal, as well as a projector system. The projector system includes mirror control circuitry configured to control movement of the at least one movable mirror in accordance with the clock signal and the movement synchronization signal, a light source controller configured to control generation of collimated light by the at least one collimated light source, and processing circuitry configured to receive the digital video stream, and to generate control signals for the light source controller based upon the received digital video stream.

公开(公告)号：US10598578B2

公开(公告)日：2020-03-24

申请号：US15650380

申请日：2017-07-14

Applicant: STMicroelectronics S.r.l.

Inventor： Alberto Pagani ,  Bruno Murari ,  Federico Giovanni Ziglioli

IPC: G01N3/08 ,  H01L23/31 ,  G01L1/00 ,  G01N3/06 ,  G01L5/103

Abstract: A tensile stress measurement device is to be attached to an object to be measured. The tensile stress measurement device may include an IC having a semiconductor substrate and tensile stress detection circuitry, the semiconductor substrate having opposing first and second attachment areas. The tensile stress measurement device may include a first attachment plate coupled to the first attachment area and extending outwardly to be attached to the object to be measured, and a second attachment plate coupled to the second attachment area and extending outwardly to be attached to the object to be measured. The tensile stress detection circuitry may be configured to detect a tensile stress imparted on the first and second attachment plates when attached to the object to be measured.

公开(公告)号：US10593614B2

公开(公告)日：2020-03-17

申请号：US16398022

申请日：2019-04-29

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Fulvio Vittorio Fontana ,  Giovanni Graziosi

IPC: H01L23/495 ,  H01L21/48 ,  H01L21/56 ,  H01L23/31 ,  H01L49/02

Abstract: In an embodiment, a semiconductor device includes: a lead-frame including one or more electrically conductive areas, one or more dielectric layers over the electrically conductive area or areas, one or more electrically conductive layer over the one or more dielectric layers thus forming one or more capacitors each including the dielectric layer sandwiched between an electrically conductive area and the electrically conductive layer. The semiconductor device also includes a semiconductor die on the lead-frame electrically connected to the one or more electrically conductive layers.

公开(公告)号：US10591505B2

公开(公告)日：2020-03-17

申请号：US15280720

申请日：2016-09-29

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Alessandro Tocchio ,  Francesco Rizzini ,  Carlo Valzasina ,  Giacomo Langfelder

IPC: G01P1/00 ,  G01P15/125

Abstract: The accelerometric sensor has a suspended region, mobile with respect to a supporting structure, and a sensing assembly coupled to the suspended region and configured to detect a movement of the suspended region with respect to the supporting structure. The suspended region has a geometry variable between at least two configurations associated with respective centroids, different from each other. The suspended region is formed by a first region rotatably anchored to the supporting structure and by a second region coupled to the first region through elastic connection elements configured to allow a relative movement of the second region with respect to the first region. A driving assembly is coupled to the second region so as to control the relative movement of the latter with respect to the first region.