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公开(公告)号：US20190287009A1
公开(公告)日：2019-09-19
申请号：US16286133
申请日：2019-02-26
Applicant: STMicroelectronics (Rousset) SAS
Inventor： Laurent Folliot , Pierre Demaj
Abstract: An embodiment provides a method for controlling scene detection by a device from among a set of possible reference scenes. The method includes detection of scenes from among the set of possible reference scenes at successive instants of detection using at least one classification algorithm. Each new current detected scene is assigned an initial probability of confidence. The initial probability of confidence is updated depending on a first probability of transition from a previously detected scene to the new current detected scene. A filtering processing operation is performed on these current detected scenes on the basis of at least the updated probability of confidence associated with each new current detected scene. The output of the filtering processing operation successively delivers filtered detected scenes.
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公开(公告)号：US20180330203A1
公开(公告)日：2018-11-15
申请号：US15924608
申请日：2018-03-19
Applicant: STMicroelectronics (Rousset) SAS
Inventor： Pierre Demaj , Laurent Folliot
CPC classification number: G06K9/6282 , G06K9/00624 , G06K9/6277 , G06K9/6293
Abstract: A method is provided for monitoring scene detection by an apparatus detecting scenes from among a set of possible reference scenes. It includes an assignment of an identifier to each reference scene, detection of scenes from among the set of possible reference scenes at successive instants of detection with the aid of at least one classification algorithm, and a sliding time filtering processing of these detected current scenes over a filtering window of size M, based on the identifier of each new detected current scene taken into account in the window and a confidence probability associated with this new detected current scene, the output of the filtering processing successively delivering filtered detected scenes.
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23.发明申请公开(公告)号：US20180255171A1
公开(公告)日：2018-09-06
申请号：US15799152
申请日：2017-10-31
Applicant: STMicroelectronics (Rousset) SAS
Inventor： Pierre Demaj , Laurent Folliot
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.
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公开(公告)号：US09985688B2
公开(公告)日：2018-05-29
申请号：US15042326
申请日：2016-02-12
Applicant: STMICROELECTRONICS (ROUSSET) SAS
Inventor： Pierre Demaj , Yoann Bouvet
CPC classification number: H04B3/544 , H04B3/466 , H04B3/542 , H04B2203/5495 , H04L5/006 , H04L25/023 , H04L27/2649
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.
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25.发明授权公开(公告)号：US09838077B2
公开(公告)日：2017-12-05
申请号：US15042509
申请日：2016-02-12
Applicant: STMICROELECTRONICS (ROUSSET) SAS
Inventor： Pierre Demaj , Yoann Bouvet
CPC classification number: H04B3/54 , H04L5/0007 , H04L5/0044 , H04L27/2601 , H04L27/2647
Abstract: A method is for processing an analog channel signal from a transmission channel. The analog channel signal conveys frames, the transmission channel being linear and cyclostationary for a duration of a frame. The method may include converting of the analog channel signal into a digital channel signal, and performing channel estimations for the frame based upon the digital channel signal to generate a sequence of N transfer functions of the transmission channel. Each of the sequence of N transfer functions may be respectively associated with N successive time slices. The method may include decoding at least some symbols of the frame using, for each of the symbols, a transfer function associated with a successive time slice including a respective symbol.
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Patent Agency Ranking
公开(公告)号：US09729199B2
公开(公告)日：2017-08-08
申请号：US14984966
申请日：2015-12-30
Applicant: STMICROELECTRONICS (ROUSSET) SAS
Inventor： Mark Wallis , Yoann Bouvet , Pierre Demaj
CPC classification number: H04B3/54 , H04L5/0007 , H04L25/03993 , H04L25/067 , H04L27/2607 , H04L27/2656 , H04L27/2675 , H04L27/2691
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.
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27.发明申请公开(公告)号：US20230131838A1
公开(公告)日：2023-04-27
申请号：US17968148
申请日：2022-10-18
Applicant: STMicroelectronics (Rousset) SAS
Inventor： Pierre Demaj , Laurent Folliot
Abstract: According to one aspect, the disclosure proposes a method for detecting events or features in physical signals by implementing an artificial neural network. The method includes evaluating the probability of presence of the event or feature by implementing the artificial neural network. The method includes implementing the artificial neural network in a nominal mode and to which a physical signal having a first so-called nominal resolution is fed, as long as the probability of the presence of the event or feature is below a threshold. The method further includes implementing the artificial neural network in a reduced consumption mode with a reduced resolution, as long as the probability of the presence of the event or feature is above the threshold. The reduced resolution is lower than the first resolution.
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28.发明申请公开(公告)号：US20230126848A1
公开(公告)日：2023-04-27
申请号：US17968174
申请日：2022-10-18
Applicant: STMicroelectronics (Rousset) SAS
Inventor： Pierre Demaj , Laurent Folliot
IPC: G06N3/04
Abstract: According to one aspect, a method is provided for detecting events or elements in physical signals, including at least one implementation of a reference artificial neural network, at least one implementation of an auxiliary artificial neural network distinct from the reference artificial neural network. The auxiliary artificial neural network being simplified relative to the reference artificial neural network. At least one assessment of a probability of presence of the event or the element by the implementation of the reference artificial neural network or by the implementation of the auxiliary artificial neural network, where the reference artificial neural network is implemented when the probability of presence of the event or the element is greater than a threshold, and wherein the auxiliary artificial neural network is implemented when the probability of presence of the event or the element is below the threshold.
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公开(公告)号：US20220188610A1
公开(公告)日：2022-06-16
申请号：US17455770
申请日：2021-11-19
Inventor： Laurent Folliot , Mirko Falchetto , Pierre Demaj
Abstract: According to an aspect, a method is proposed for defining placements, in a volatile memory, of temporary scratch buffers used during an execution of an artificial neural network, the method comprising: determining an execution order of layers of the neural network, defining placements, in a heap memory zone of the volatile memory, of intermediate result buffers generated by each layer, according to the execution order of the layers, determining at least one free area of the heap memory zone over the execution of the layers, defining placements of temporary scratch buffers in the at least one free area of the heap memory zone according to the execution order of the layers.
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公开(公告)号：US10929724B2
公开(公告)日：2021-02-23
申请号：US15924608
申请日：2018-03-19
Applicant: STMicroelectronics (Rousset) SAS
Inventor： Pierre Demaj , Laurent Folliot
Abstract: A method is provided for monitoring scene detection by an apparatus detecting scenes from among a set of possible reference scenes. It includes an assignment of an identifier to each reference scene, detection of scenes from among the set of possible reference scenes at successive instants of detection with the aid of at least one classification algorithm, and a sliding time filtering processing of these detected current scenes over a filtering window of size M, based on the identifier of each new detected current scene taken into account in the window and a confidence probability associated with this new detected current scene, the output of the filtering processing successively delivering filtered detected scenes.
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