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.

公开(公告)号：US10585937B2

公开(公告)日：2020-03-10

申请号：US15070470

申请日：2016-03-15

Applicant: STMicroelectronics S.r.l.

Inventor： Danilo Pietro Pau ,  Alioscia Petrelli ,  Luigi Di Stefano

IPC: G06F17/30 ,  G06F16/583 ,  G06F16/58

Abstract: Local descriptors are extracted from digital image information and digital depth information related to digital images. The local descriptors convey appearance description information and shape description information related to the digital images. Global representations of the one or more digital images are generated based on the extracted local descriptors, and are hashed. Visual search queries are generated based on the hashed global representations. The visual search queries include fused appearance description information and shape description information conveyed in the local descriptors. The fusing may occur before the global representations are generated, before the hashing or after the hashing.

公开(公告)号：US10571421B2

公开(公告)日：2020-02-25

申请号：US15795609

申请日：2017-10-27

Applicant: STMicroelectronics S.R.L.

Inventor： Antonello Santangelo ,  Salvatore Cascino ,  Roberto Modica ,  Viviana Cerantonio ,  Maurizio Moschetti ,  Alessandro Auditore

IPC: G01N27/22 ,  G01N27/00

Abstract: A sensor of volatile substances includes: a first electrode structure and a second electrode structure capacitively coupled, comb-fingered, and arranged coplanar in a plane; and a sensitive layer, of a sensitive material that is permeable to a volatile substance and has electrical permittivity depending upon a concentration of the volatile substance absorbed by the sensitive material. The sensitive layer extends from opposite sides of the plane.