公开(公告)号：US20200175373A1

公开(公告)日：2020-06-04

申请号：US16680840

申请日：2019-11-12

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Pierre Demaj ,  Laurent Folliot

IPC: G06N3/08 ,  G06N3/04

Abstract: A method can be used with a neural network being implemented by a system having a computation unit coupled to a collection of memories. The method includes analyzing a set of initial parameters defining an initial multilayer neural network. The analyzing includes attempting to reduce an initial memory size of an initial parameter so as to obtain a set of modified parameters defining a modified neural network with respect to the initial network.

公开(公告)号：US10560564B2

公开(公告)日：2020-02-11

申请号：US15799152

申请日：2017-10-31

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Pierre Demaj ,  Laurent Folliot

IPC: H04M1/725 ,  G01D21/02 ,  H04W4/02 ,  H04W12/00 ,  H04W4/029 ,  H04W52/02 ,  H04W4/38 ,  H04W56/00 ,  H04W4/33 ,  H04W4/23

Abstract: A method can be used for managing a real-time detection related to a scene. A succession of steps of scene detection is spaced apart by time intervals. A time interval separating a current step of scene detection from a previous step of scene detection is adjusted according to an adjustment criterion linked to a previous scene actually detected. The succession of steps and the adjustment are performed by a wireless communication apparatus.

公开(公告)号：US20240119309A1

公开(公告)日：2024-04-11

申请号：US18470798

申请日：2023-09-20

Applicant: STMicroelectronics S.r.l. ,  STMicroelectronics (Rousset) SAS

Inventor： Laurent Folliot ,  Marco Lattuada ,  Pierre Demaj

IPC: G06N3/10 ,  G06F8/35 ,  G06F8/41

CPC classification number: G06N3/10 ,  G06F8/35 ,  G06F8/4434

Abstract: In an embodiments a method includes obtaining a neural network (INN), the neural network having a plurality of neural layers, each layer being capable of being executed according to different implementation solutions and impacting a required memory allocation for the execution of the neural network and/or an execution time of the neural network, defining a maximum execution time threshold of the neural network and/or a maximum required memory allocation threshold for the execution of the neural network, determining an optimal required memory allocation size for the execution of the neural network from possible implementation solutions for each layer of the neural network, determining an optimal execution time of the neural network from the possible implementation solutions for each layer of the neural network and estimating a performance loss or a performance gain in terms of execution time and required memory allocation for each implementation solution of each layer of the neural network.

公开(公告)号：US11645519B2

公开(公告)日：2023-05-09

申请号：US16691914

申请日：2019-11-22

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Pierre Demaj ,  Laurent Folliot

IPC: G06N3/04 ,  G06N3/08 ,  G06N20/00 ,  G06F17/16 ,  G06N3/02 ,  G06N3/063 ,  G06N3/045 ,  G06N3/0464

CPC classification number: G06N3/08 ,  G06F17/16 ,  G06N3/02 ,  G06N3/045 ,  G06N3/0464 ,  G06N3/063 ,  G06N20/00

Abstract: A method can be used to process an initial set of data through a convolutional neural network that includes a convolution layer followed by a pooling layer. The initial set is stored in an initial memory along first and second orthogonal directions. The method includes performing a first filtering of the initial set of data by the convolution layer using a first sliding window along the first direction. Each slide of the first window produces a first set of data. The method also includes performing a second filtering of the first sets of data by the pooling layer using a second sliding window along the second direction.

公开(公告)号：US20220107990A1

公开(公告)日：2022-04-07

申请号：US17480639

申请日：2021-09-21

Applicant: STMicroelectronics S.r.I. ,  STMicroelectronics (Rousset) SAS

Inventor： Laurent Folliot ,  Mirko Falchetto ,  Pierre Demaj

IPC: G06F17/15 ,  G06N3/04

Abstract: In an embodiment a method for managing a convolutional calculation carried out by a calculation unit adapted to calculate output data on output channels from convolution kernels applied to input data blocks on at least one input channel, wherein calculations on each input data block correspond respectively to an output datum on an output channel, and wherein the calculations with each convolution kernel correspond to the output data on each output channel respectively includes identifying a size of a memory location available in a temporary working memory of the calculation unit, pre-loading in the temporary working memory a maximum number of convolution kernels storable at the size of the memory; and controlling the calculation unit to calculate a set of output data calculable from pre-loaded convolution kernels.

公开(公告)号：US10789477B2

公开(公告)日：2020-09-29

申请号：US15936587

申请日：2018-03-27

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Pierre Demaj ,  Laurent Folliot

IPC: G06K9/00 ,  G06K9/62 ,  G06Q50/10

Abstract: A method for real-time detection of at least one scene by an apparatus, from among a set of possible reference scenes, includes acquiring current values of attributes from measurement values supplied by sensors. The method further includes traversing a path through a decision tree. The nodes of the decision tree are respectively associated with the attributes. The traversal considers at each node along the path, the current value of the corresponding attribute, so as to obtain at the output of the path, a scene from among the set of reference scenes. The obtained scene identifying which reference scene is the detected scene. The method further includes developing a confidence index (SC) associated with the identification of the detected scene.

公开(公告)号：US10211884B2

公开(公告)日：2019-02-19

申请号：US15797947

申请日：2017-10-30

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Yoann Bouvet ,  Pierre Demaj

IPC: H04B3/54 ,  H04B3/466 ,  H04L5/00 ,  H04L25/02 ,  H04L27/26

Abstract: A method is for processing a channel analog signal coming from a transmission channel. The method may include converting the channel analog signal into a channel digital signal, and detecting a state of the transmission channel based on the channel digital signal to detect whether the transmission channel is, over an interval of time, one or more of linear and time invariant and linear and cyclostationary.

公开(公告)号：US20180293441A1

公开(公告)日：2018-10-11

申请号：US15936587

申请日：2018-03-27

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Pierre Demaj ,  Laurent Folliot

IPC: G06K9/00 ,  G06K9/62

CPC classification number: G06K9/00684 ,  G06K9/6256 ,  G06K9/6265 ,  G06K9/6268 ,  G06Q50/10

Abstract: A method for real-time detection of at least one scene by an apparatus, from among a set of possible reference scenes, includes acquiring current values of attributes from measurement values supplied by sensors. The method further includes traversing a path through a decision tree. The nodes of the decision tree are respectively associated with the attributes. The traversal considers at each node along the path, the current value of the corresponding attribute, so as to obtain at the output of the path, a scene from among the set of reference scenes. The obtained scene identifying which reference scene is the detected scene. The method further includes developing a confidence index (SC) associated with the identification of the detected scene.

公开(公告)号：US10050672B2

公开(公告)日：2018-08-14

申请号：US15629257

申请日：2017-06-21

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Mark Wallis ,  Yoann Bouvet ,  Pierre Demaj

IPC: H04B3/54 ,  H04L27/26 ,  H04L5/00 ,  H04L25/03 ,  H04L25/06

Abstract: A method is for processing an analog signal coming from a transmission channel. The analog signal may include a useful signal modulated on a sub-set of carriers. The method may include analog-to-digital converting of the analog signal into a digital signal, and synchronization processing the digital signal. The synchronizing may include determining, in a time domain, a limited number of coefficients of a predictive filter from an autoregressive model of the digital signal, and filtering the digital signal in the time domain by a digital finite impulse response filter with coefficients based upon the limited number of coefficients to provide a filtered digital signal. The method may include detecting of an indication allowing a location in the frame structure to be identified, using the filtered digital signal and a reference signal.

公开(公告)号：US20180070315A1

公开(公告)日：2018-03-08

申请号：US15472794

申请日：2017-03-29

Applicant: STMicroelectronics (Rousset) SAS ,  STMicroelectronics SA

Inventor： Pierre Demaj ,  Matthieu Durnerin ,  Laurent Folliot ,  Ludovic Champsaur

IPC: H04W52/02 ,  H04M1/725

CPC classification number: H04W52/0254 ,  G06N99/005 ,  H04L67/22 ,  H04L67/325 ,  H04M1/72569 ,  H04M2250/12 ,  H04W4/027 ,  H04W4/043 ,  H04W4/38 ,  H04W4/50 ,  H04W52/0209 ,  H04W52/0261

Abstract: A control method for real-time scene detection by a wireless communication apparatus equipped with at least one environmental measurement sensor is disclosed. A temporal adjustment of the instants of activation of the detection is based on measurement values delivered by the at least one environmental measurement sensor at instants of measurement.