Stmicroelectronics S.r.l.

Hewlett-packard Development Company, L.p.

Stmicroelectronics S.a.

Stmicroelectronics International N.v.

Stmicroelectronics Gmbh

Pasqualina Fragneto

Guido Marco Bertoni

Gerardo Pelosi

Beatrice Rossi

Roberto Valerio Sannino

Fabio Sozzani

Liqun Chen

Keith Alexander Harrison

Diego Carrera

Giacomo Boracchi

Marco Macchetti

Luca Breveglieri

Stefano Marchesin

Daniele Zambon

Danilo Pietro Pau

Yannick Teglia

Pierre-Yvan Liardet

Giuseppe Desoli

Fabrice Romain

Emiliano Mario Piccinelli

Nicolas Bernard Grossier

Marco Passoni

Lorenzo Guerrieri

Subarna Tripathi

Luca Magri

Andrew Marsh

Moris Ravasio

Umberto Bondi

Lidia Moioli

Giuseppe Livio Gobbato

Francesca Carminati

Daniele Zerbini

Martina Cordoni

Andrea Capasso

Mauro Fumagalli

Federica Arrigoni

Elena Tagliabue

Valentina Arrigoni

Paolo Giugni

Annalisa Aurigemma

Matteo Colella

Luca Frittoli

A method of operating a PMUT electro-acoustical transducer, the method comprising: applying over an excitation interval to the transducer an excitation signal which is configured to emit corresponding ultrasound pulses towards a surrounding space, acquiring at a receiver reflected ultrasound pulses as reflected in said surrounding space, generating a reference echo signal, performing a cross-correlation of said acquired received ultrasound pulses with said reference echo signal, performing a measurement based on the cross-correlation results, in particular a measurement of the time of flight of the ultrasound pulses, wherein said reference echo is obtained by finding an oscillation frequency of the transmitter on the basis of a transmitter ringdown signal, finding an oscillation frequency of the receiver on the basis of a receiver ringdown signal, performing a frequency tuning respectively on the transmitter and the receiver on the basis of said respective oscillation frequencies, then sweeping an input frequency of the transmitter to find a frequency of the maximum displacement in the ringdown signal, performing a frequency tuning of the receiver at said frequency of the maximum displacement in the ringdown signal of the transmitter.

Method of operating electro-acoustic transducers, corresponding circuit and device

A method of operating neural networks such as convolutional neural networks including, e.g., an input layer, an output layer and at least one intermediate layer between the input layer and the output layer, with the network layers including operating circuits performing arithmetic operations on input data to provide output data. The method includes: selecting a set of operating circuits in the network layers, performing arithmetic operations in operating circuits in the selected set of operating circuits by performing Residue Number System or RNS operations on RNS-converted input data by obtaining RNS output data in the Residue Number System, backward converting from the Residue Number System the RNS output data resulting from the RNS operations.

Method of operating neural networks, corresponding network, apparatus and computer program product

A device includes image generation circuitry and a convolutional neural network. The image generation circuitry, in operation, generates a binned representation of a wafer defect map (WDM). The convolutional-neural-network, in operation, generates and outputs an indication of a root cause of a defect associated with the WDM based on the binned representation of the WDM and a data-driven model associating WDMs with classes of a defined set of classes of wafer defects.

Wafer manufacturing system, device and method

A heart-rate associated with a heartbeat signal is determined. A transform is selected based on the determined heart-rate associated with the heartbeat signal and a reference heart-rate associated with a dictionary of a sparse approximation model. The transform is selected independent of other factors associated with generation of the heartbeat signal. The selected transform is applied to the dictionary of the sparse approximation model, generating an adjusted dictionary of the sparse approximation model. Anomalous heartbeats in the heartbeat signal are detected using the adjusted dictionary of the sparse approximation model.

Method for the detecting electrocardiogram anomalies and corresponding system

A heartrate monitor detects heartbeats in a test signal. A local heartrate and an energy of acceleration are associated with the detected heartbeats. Detected heartbeats are included or excluded from a test set of heartbeats based on the local heartrate and energy of acceleration associated with the respective heartbeats. Anomalous heartbeats in the test set of heartbeats are detected using a sparse approximation model. The heartrate monitor may detect heartbeats in a training heartbeat signal. A reference heart rate and an energy of acceleration are associated with detected beats of the training heartbeat signal and selectively included in a set of training data based on the heart rate and energy of acceleration associated with the detected beat in the training heartbeat signal. A dictionary of the sparse representation model may be generated using the set of training data.

A semiconductor device, for example an integrated circuit such as a microcontroller (MCU) or a digital signal processor (DSP), includes a semiconductor die coupled with a power supply line, a debug module coupled with the semiconductor die to exchange semiconductor die debug command and data signals with the semiconductor die, and a modem coupled with the power supply line. The debug module is arranged to convey the semiconductor die debug command and data signals over the power supply line.

Semiconductor device and corresponding debugging method

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.

Absolute rotation estimation including outlier detection via low-rank and sparse matrix decomposition

An embodiment is a computer-implemented method for detecting a straight line in a digital image comprising a plurality of pixels comprising the steps: detecting an edge in the digital image, generating a first straight line which passes through a first pixel of the detected edge, generating a second straight line which passes through a second pixel of the detected edge, which is different from the first pixel, determining at least two intersections with a boundary of the digital image for each generated straight line, determining a set of two parameter values for each generated straight line based on the respective determined at least two intersections, wherein the set of two parameter values uniquely determines the respective generated straight line, and detecting the straight line in the digital image based on the determined sets of two parameter values.

Method for detecting a straight line in a digital image

An authentication method of a first module by a second module includes the steps of generating a first random datum by the second module to be sent to the first module, generating a first number by the first module starting from the first datum and by way of a private key, and generating a second number by the second module to be compared with the first number, so as to authenticate the first module. The step of generating the second number is performed starting from public parameters and is independent of the step of generating the first number.

Authentication method

Data are converted between an unencrypted and an encrypted format according to the Rijndael algorithm, including a plurality of rounds. Each round is comprised of a fixed set of transformations applied to a two-dimensional array, designating states, of rows and columns of bit words. At least a part of the transformations are applied on a transposed version of the state, wherein rows and columns are transposed for the columns and rows, respectively.

Method and circuit for data encryption/decryption

A method of processing information to be confidentially transmitted from a first module to a second module provides that a first scalar multiplication may be carried out in order to obtain a first result [r]P. This first scalar multiplication comprises a plurality of generation steps of ordered factors from which a plurality of first partial sums are required to be built. The method also comprises the carrying out of a second scalar multiplication in order to obtain a second result. This second multiplication provides that a plurality of second partial sums may be built. A piece of encrypted information is obtained by processing the information based on the results of the scalar multiplications. The second partial sums of the second scalar multiplication use the same ordered factors obtained by the generation step of the first scalar multiplication.

Method of processing information to be confidentially transmitted

A method for decrypting the encrypted messages sent by a transmission device to a first electronic device associated with a first trusted authority and to a second electronic device (ME). In one embodiment, first and second tokens are generated and exchanged, respectively, by the first and second electronic devices, which then generate a joint decryption key in order to decrypt the encrypted message.

Message deciphering method, system and article

A computing method and circuit for computing a modular operation with at least one operand having a binary representation. Iteratively for each bit of this operand, doubling the value of an intermediate result stored in a first memory element by shifting the bits of the intermediate result towards the most significant bit and, while the most significant bit of the intermediate result is one, updating this intermediate result by subtracting a modulus stored in a second memory element.

Computation of a multiplication operation with an electronic circuit and method

A processor for executing a Rijndeal algorithm which applies a plurality of encryption rounds to a data block array in order to obtain an array of identical size, each round involving a key block array and a data block substitution table, wherein said processor comprises: a first input register () containing an input data block column; an output register () containing an output data block column or an intermediate block column; a second input register () containing a key block column or the intermediate data blocks; a block substitution element () receiving the data one block at a time following the selection () thereof in the first register and providing, for each block, a column of blocks; an element () applying a cyclic permutation to the substitution circuit column blocks; and an Exclusive-OR combination element () combining the permutation circuit column blocks with the content of the second register, the result of said combination being loaded into the output register.

Processor for executing an AES-type algorithm

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Milan, Italy

Pasqualina Fragneto