公开(公告)号：US09865346B1

公开(公告)日：2018-01-09

申请号：US15475609

申请日：2017-03-31

Applicant: STMicroelectronics S.r.l.

Inventor： Maurizio Francesco Perroni ,  Carmelo Paolino ,  Salvatore Polizzi

IPC: G11C11/00 ,  G11C13/00

CPC classification number: G11C13/004 ,  G11C13/0004 ,  G11C13/0026 ,  G11C13/0064 ,  G11C13/0069 ,  G11C17/18 ,  G11C2013/0042

Abstract: A phase change memory device includes two portions with local bitlines connected to memory cells. A reading stage is configured to read logic data stored by the first and second memory cells. A first main bitline extends between the reading stage and the first local bitlines and a first main switch is coupled between the first main bitline and reading stage and likewise for the second portion. Local switches are associated with respective ones of the local bitlines. A first reference signal generator is coupled to the reading stage. The phase change memory device is configured to operate in a first reading mode, in which the logic data stored by the first memory cell is read by the reading stage by comparison with the reference signal.

公开(公告)号：US20180007492A1

公开(公告)日：2018-01-04

申请号：US15540230

申请日：2015-11-09

Applicant: STMicroelectronics S.r.l.

Inventor： Francesco Caserta

IPC: H04W4/00 ,  H04W4/14 ,  G06F3/06

CPC classification number: H04W4/60 ,  G06F3/0659 ,  H04W4/14 ,  H04W12/02

Abstract: A communication method includes receiving a first message of a Short Message Service containing a first command that requests execution of a proactive command. The first message is decrypted according to protocol SCP80 to extract the first command. The execution of the proactive command is requested in order to obtain a response to the proactive command. A second message of the Short Message Service is transmitted to the remote server and indicates that the response to the proactive command has been obtained. A third message of the Short Message Service is received and contains a second command from the remote server. The third message is decrypted according to the protocol SCP80. A response message is generated as a function of the response and encrypted according to the protocol SCP80 to generate a fourth message of the Short Message Service transmitted to the remote server.

公开(公告)号：US20180005792A1

公开(公告)日：2018-01-04

申请号：US15392539

申请日：2016-12-28

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Antonino Fiumara ,  Marcello Frazzica ,  Giuseppe Digrazia

IPC: H01J19/24 ,  H01J9/02 ,  H01J19/44

CPC classification number: H01J19/24 ,  H01J9/025 ,  H01J19/44 ,  H01J19/82 ,  H01J21/105 ,  H01J2209/0223

Abstract: A method for manufacturing a microelectronic semiconductor device comprising the steps of: forming a trench in a body, the trench having side walls, a opening, and a bottom; forming a sacrificial layer in the trench; forming a recess in the sacrificial layer; forming a restriction structure between the sacrificial layer and the opening of the trench, defining a through hole for access to the sacrificial layer; completely removing the sacrificial layer through said through hole; and depositing a metal layer over the body, thus closing the opening of the trench and forming an electron-emission cathode tip.

公开(公告)号：US20180004240A1

公开(公告)日：2018-01-04

申请号：US15383844

申请日：2016-12-19

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Giovanni Gritti ,  Claudio Adragna

IPC: G05F3/26 ,  H02M3/335 ,  H02M1/42

CPC classification number: G02B26/0833 ,  B81B3/0045 ,  B81B2201/042 ,  B81B2203/0315 ,  B81B2203/056 ,  G05F3/26 ,  H02M1/12 ,  H02M1/15 ,  H02M1/42 ,  H02M1/4225 ,  H02M1/4258 ,  H02M3/33507 ,  H02M2001/0025 ,  H02M2001/0032 ,  H04N9/3155 ,  H04N9/3173 ,  Y02B70/126 ,  Y02B70/16 ,  Y02P80/112

Abstract: A control device for controlling a switching converter includes a switch controller that generates a control signal with a switching period for controlling switching of a switch of the switching converter and setting a first interval in which a current flows in the switch, a second interval in which energy is transferred onto a storage element of the switching converter, and a third, wait, interval, at the end of the second interval. The duration of the first interval is determined based on a control voltage indicating the output voltage. A pre-distortion stage receives the control voltage and generates a pre-distorted control voltage as a function of the control voltage and a relationship between one of the first and third time intervals and the switching period, wherein the switch controller is configured to control a duration of the first interval based on the pre-distorted control voltage.

公开(公告)号：US20180003504A1

公开(公告)日：2018-01-04

申请号：US15707707

申请日：2017-09-18

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Andrea DONADEL ,  Davide MAGNONI ,  Marco GARBARINO

IPC: G01C19/5776 ,  G01C19/5726

CPC classification number: G01C19/5776 ,  G01C19/5726

Abstract: A gyroscope includes: a mass, which is movable with respect to a supporting body; a driving loop for keeping the mass in oscillation according to a driving axis; a reading device, which supplying an output signal indicating an angular speed of the body; and a compensation device, for attenuating spurious signal components in quadrature with respect to a velocity of oscillation of the mass. The reading device includes an amplifier, which supplies a transduction signal indicating a position of the mass according to a sensing axis. The compensation device forms a control loop with the amplifier, extracts from the transduction signal an error signal representing quadrature components in the transduction signal, and supplies to the amplifier a compensation signal such as to attenuate the error signal.

公开(公告)号：US20170369309A1

公开(公告)日：2017-12-28

申请号：US15379091

申请日：2016-12-14

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Giorgio ALLEGATO ,  Laura OGGIONI ,  Matteo GARAVAGLIA ,  Roberto SOMASCHINI

IPC: B81C1/00 ,  B81B3/00

CPC classification number: B81C1/00269 ,  B81B3/0097 ,  B81B2201/0242 ,  B81B2201/0264 ,  B81B2201/042 ,  B81B2203/0315 ,  B81C3/001 ,  B81C2201/019 ,  B81C2203/0118 ,  B81C2203/019 ,  B81C2203/037

Abstract: A microelectromechanical device having a first substrate of semiconductor material and a second substrate of semiconductor material having a bonding recess delimited by projecting portions, monolithic therewith. The bonding recess forms a closed cavity with the first substrate. A bonding structure is arranged within the closed cavity and is bonded to the first and second substrates. A microelectromechanical structure is formed in a substrate chosen between the first and second substrates. The device is manufactured by forming the bonding recess in a first wafer; depositing a bonding mass in the bonding recess, the bonding mass having a greater depth than the bonding recess; and bonding the two wafers.

公开(公告)号：US09846974B2

公开(公告)日：2017-12-19

申请号：US14562394

申请日：2014-12-05

Applicant: STMicroelectronics S.r.l.

Inventor： Federica Arrigoni ,  Beatrice Rossi ,  Pasqualina Fragneto

IPC: G06T19/20

CPC classification number: G06T19/20 ,  G06T2219/2004 ,  G06T2219/2016

Abstract: The present disclosure is directed to systems and methods to perform absolute rotation estimation including outlier detection via low-rank and sparse matrix decomposition. One example method includes obtaining a relative rotation estimates matrix that includes a plurality of relative rotation estimates. The method includes determining values for a low-rank matrix that result in a desirable value of a cost function that is based on a low-rank and sparse matrix decomposition of the relative rotation estimates matrix. The cost function includes the low-rank matrix and a sparse matrix that is nonzero in correspondence of one or more outliers of the plurality of relative rotation estimates. The method includes determining an absolute rotations matrix that includes a plurality of absolute rotations based at least in part on the values of the low-rank matrix that result in the desirable value of the cost function.

公开(公告)号：US09846231B2

公开(公告)日：2017-12-19

申请号：US14788029

申请日：2015-06-30

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Francesco D'Angelo ,  Stefano Corona

IPC: G01S15/12 ,  G01S15/93 ,  G01S15/02 ,  G01S7/521 ,  G01S7/523 ,  G01S15/10 ,  G10K11/00 ,  G01S7/529

CPC classification number: G01S15/12 ,  G01S7/521 ,  G01S7/523 ,  G01S7/529 ,  G01S15/025 ,  G01S15/10 ,  G01S15/93 ,  G10K11/004

Abstract: A device for detecting obstacles that is wearable by a subject, for example integrated in an item of footwear. The device includes an ultrasound source for emitting an ultrasound transmission signal and an ultrasound receiver for receiving a corresponding ultrasound signal reflected by an obstacle, a control module for measuring a time of flight between emission of the ultrasound transmission signal and reception of the corresponding ultrasound signal reflected by the obstacle and calculating, on the basis of the aforesaid time of flight, the distance at which the obstacle is located. The device comprises an inertial sensor, in particular an acceleration sensor, designed to measure acceleration of the foot along three axes, and a control module configured for enabling operation of the ultrasound source if the aforesaid acceleration values measured by the inertial sensor respect a given condition for enabling measurement of the time of flight.

公开(公告)号：US09843868B2

公开(公告)日：2017-12-12

申请号：US15017514

申请日：2016-02-05

Applicant: Omron Corporation ,  STMICROELECTRONICS S.R.L.

Inventor： Takashi Kasai ,  Shobu Sato ,  Yuki Uchida ,  Igino Padovani ,  Filippo David ,  Sebastiano Conti

IPC: H04R19/04 ,  H04R3/00 ,  H04R19/00 ,  H04R19/01 ,  H04R31/00 ,  B81B3/00 ,  H04R1/02 ,  H04R1/08

CPC classification number: H04R19/04 ,  B81B3/0021 ,  H04R1/023 ,  H04R1/086 ,  H04R3/00 ,  H04R3/005 ,  H04R19/005 ,  H04R19/016 ,  H04R31/00 ,  H04R2201/003 ,  H04R2499/11

Abstract: Provided is an acoustic transducer including: a semiconductor substrate; a vibrating membrane provided above the semiconductor substrate, including a vibrating electrode; and a fixed membrane provided above the semiconductor substrate, including a fixed electrode, the acoustic transducer detecting a sound wave according to changes in capacitances between the vibrating electrode and the fixed electrode, converting the sound wave into electrical signals, and outputting the electrical signals. At least one of the vibrating electrode and the fixed electrode is divided into a plurality of divided electrodes, and the plurality of divided electrodes outputting the electrical signals.

公开(公告)号：US20170343430A1

公开(公告)日：2017-11-30

申请号：US15464869

申请日：2017-03-21

Applicant: STMicroelectronics S.r.l.

Inventor： Daniele Caltabiano ,  Mohammad Abbasi Gavarti ,  Bruno Murari ,  Roberto Brioschi ,  Domenico Giusti

IPC: G01L1/18

CPC classification number: G01L1/18 ,  G01L1/04 ,  G01L9/0041

Abstract: A load-sensing device is arranged in a package forming a chamber. The package has a deformable substrate configured, in use, to be deformed by an external force. A sensor unit is positioned in direct contact with the deformable substrate and is configured to detect deformations of the deformable substrate. An elastic element within of the chamber is arranged to act between the package and the sensor unit to generate, on the sensor unit, a force keeping the sensor unit in contact with the deformable substrate. The deformable substrate may be a base of the package, and the elastic element may be a metal lamina arranged between the lid of the package and the sensor unit. The sensor unit may be a semiconductor die integrating piezoresistors.