公开(公告)号：EP2628154A1

公开(公告)日：2013-08-21

申请号：EP11767267.5

申请日：2011-10-11

申请人： Institut Polytechnique de Grenoble ,  Instutut Mines-Télécom ,  Telecom Paris Tech.

发明人： GIRIN, Laurent ,  LIUKTUS, Antoine ,  RICHARD, Gaël ,  BADEAU, Roland

IPC分类号： G10L21/02 ,  G10L19/00

CPC分类号： G10L19/018 ,  G10L21/0272

摘要： The invention relates to a method of forming one or more digital audio mixed signals (Sout) on the basis of at least two digital audio source signals (S1, S2), in which the digital audio mixed signal or signals are formed by mixing the digital audio source signals. A characteristic digital magnitude of at least one digital audio source signal is compressed into a series of bits and said series of bits is inserted into said digital audio source signal or into the digital audio mixed signals in an almost inaudible or inaudible manner, The characteristic digital magnitude is the temporal, spectral or spectro-temporal distribution of said digital audio source signal or the temporal, spectral or spectro-temporal contribution of said digital audio source signal in the mixed signal or signals, or said digital audio source signal. The invention also relates to a method of separation intended for separating, at least partially, at least one digital audio source signal contained in one or more digital audio mixed signals obtained previously. The invention also relates to the corresponding digital audio mixed signal (Sout), as well as to the corresponding devices.

公开(公告)号：EP2294761A1

公开(公告)日：2011-03-16

申请号：EP09757544.3

申请日：2009-06-03

申请人： Institut Telecom - Telecom Paris Tech

发明人： RIGUIDEL, Michel ,  LAURIER, Philippe ,  LADOUARI, Laurent

IPC分类号： H04L12/26

CPC分类号： H04L43/00 ,  G06F21/6254 ,  H04L43/026

摘要： The network comprising communication supports (31, 32, 33) sending streams (36) to receiving agents (37, 38, 39), the method comprises at least: - a step of allocating a cryptonymic identity (34) to communication supports by a first instance A, the streams (36) sent by a support bearing a mark dependent on its cryptonym, the cryptonymic identity of a support being distinct from its real identity; - a step of reading and analyzing (41, 42) the streams by a second instance B (22), said analysis comprising a phase of identifying streams to their communication supports by searching for similitude between the mark of the streams and the cryptonymic identity of the supports, with the aid of a table referencing the cryptonyms, and a phase of logging observable characteristics of the streams through the network; a behaviour defined by a set of characteristics is declared typical or atypical by comparison with a given set of criteria, the table of cryptonymic identities having no relationship with the real identities. The invention applies in particular for combating illegal downloads, the sending of material which is unsolicited or which may cover up identifiable malicious intentions.

摘要翻译： 一种网络包括通信媒体发送流收件人，和一种方法，包括：由第一实例的cryptonymic同一性通信媒体的分配的步骤中，反式流由带有标记的介质mitted，作为其匿名的函数，所述cryptonymic身份 是从它的真实身份不同的介质; 的读出和通过第二实例分析所述流的步骤中，所述分析包括通过搜索数据流的标记和媒体的cryptonymic身份之间的相似性识别流以他们的通信介质的相位，与表列表的辅助 的cryptonyms，并通过网络登录的流的可观察到的特性的相位。 由一组特征的定义的行为被声明通过与一组给定的标准，具有与所述真实身份没有链接cryptonymic身份的表比较典型的或非典型的。 本发明是一种打击非法下载主要是应用材料的发送的确是不请自来的或可能掩盖识别恶意的意图。

公开(公告)号：EP2257904A1

公开(公告)日：2010-12-08

申请号：EP09725641.6

申请日：2009-03-18

申请人： Institut Telecom - Telecom Paris Tech ,  Centre National de la Recherche Scientifique

发明人： GUILLEY, Sylvain ,  DANGER, Jean-Luc ,  HOOGVORST, Philippe

IPC分类号： G06F21/00

CPC分类号： G06F7/00 ,  G06F21/75 ,  G06F21/755 ,  G06F2207/7266

摘要： The invention relates to a circuit that comprises cells including a memory defining the logic function of each cell, integrating a differential network capable of making calculations in respect of pairs of binary variables, including a first cell network implementing logic functions on the first component of the pairs and a second network of dual cells operating in complementary logic on the second component of the pairs. A calculation step includes at least one precharge phase (41) in which the variables are placed in a known state at the input of the cells, followed by an evaluation phase (43) in which a calculation is made by the cells. A variable synchronisation phase (42, 44) is performed before the evaluation or precharge phase at each cell capable of receiving a plurality of signals conveying input variables, the synchronisation being carried out on the most delayed signal. The invention can be used for protecting this type of circuit against differential power analysis attacks.

公开(公告)号：EP2435985B1

公开(公告)日：2013-11-20

申请号：EP10724408.9

申请日：2010-05-28

申请人： Institut Telecom - Telecom Paris Tech ,  Université Paris Diderot - Paris 7 ,  Centre National de la Recherche Scientifique CNRS

发明人： ANGELINI, Elsa ,  MANDONNET, Emmanuel ,  DELON, Julie

IPC分类号： G06T7/00 ,  G06T7/40

CPC分类号： G06T7/403 ,  G01R33/5608 ,  G06T7/0014 ,  G06T7/44 ,  G06T2207/10088 ,  G06T2207/30016 ,  G06T2207/30096

摘要： A method for quantifying the development of pathologies involving changes in volume of a body represented via an imaging technique, including normalizing gray levels by a midway technique for two images I1 and I2 representing the same scene, resulting in two normalized images I′1 and I′2; calculating a map of signed differences between the two normalized images I′1 and I′2; and performing one or more statistical tests based on the assumption of a Gaussian distribution of the gray levels for healthy tissues in the normalized images I′1 and I′2 and/or in the calculated difference map. Advantageously, results of two or more of the tests can be combined for a more specific characterization of the development.

公开(公告)号：EP2526433A1

公开(公告)日：2012-11-28

申请号：EP11700335.0

申请日：2011-01-10

申请人： Institut Telecom - Telecom Paris Tech

发明人： DANGER, Jean-Luc

IPC分类号： G01R31/317 ,  G06F21/00

CPC分类号： H04L9/0861 ,  G01R31/31719 ,  G06F21/31 ,  G06F21/73 ,  G06F2221/2129 ,  G09C1/00 ,  H04L9/3278 ,  H04L2209/12 ,  H04L2209/26

摘要： The invention relates to an integrated silicon circuit that comprises a physically non-reproducible LPUF function enabling the generation of a signature specific to said circuit. Said function comprises a ring oscillator consisting of a loop (502) through which a signal e flows, said loop consisting of N topologically identical delay channels (500, 501), connected to each other in series and an inversion gate (503), wherein a delay channel (500, 501) consists of M lag elements (506, 507) connected to each other in series. The function also comprises a control module (505) that generates N control words (C1, C2), said words being used for configuring the value of the lag inserted by the delay channels on the signal e flowing therethrough. A measuring module (504) measures the signal frequency at the output of the last delay channel (501) after updating the control words, and means for deriving the measurements of the frequencies of the bits forming the circuit signature. The invention also relates to a method and system for testing such circuits.

公开(公告)号：EP2435985A1

公开(公告)日：2012-04-04

申请号：EP10724408.9

申请日：2010-05-28

申请人： Institut Telecom - Telecom Paris Tech ,  Université Paris Diderot - Paris 7 ,  Centre National de la Recherche Scientifique CNRS

发明人： ANGELINI, Elsa ,  MANDONNET, Emmanuel ,  DELON, Julie

IPC分类号： G06T7/00

CPC分类号： G06T7/403 ,  G01R33/5608 ,  G06T7/0014 ,  G06T7/44 ,  G06T2207/10088 ,  G06T2207/30016 ,  G06T2207/30096

摘要： The invention relates to a method for quantifying the development of diseases involving changes in the volume of bodies depicted by an imaging technique, characterised in that said method includes at least: a first step (101) of normalising the grey levels using a technique halfway between two images I
1 and I
2 depicting the same scene, producing two normalised images I'
1 and I'
2 ; a second step (102) of calculating a map of differences detected between the two normalised images I'
1 and I'
2 ; and a third step (103) including at least one statistical test on the basis of the hypothesis of Gaussian distribution of the grey levels of normal tissue of the normalised images I'
1 and I'
2 and/or of the map of differences calculated in the second step (102). Advantageously, a fourth step can combine one or more of the tests performed in the third step for a more specific characterisation of the development.

摘要翻译： 用于定量病理学涉及经由在成像技术代表在体内的容积变化，包括由两个图像I1和I2表示同一场景的中途技术标准化灰度级，以两种标准化图像所得的显影方法I“1和I “2; 计算地图上的两个归一化的图像I“1和I'2之间签订的差异; 和基于所述灰度级的高斯分布对健康组织在归一化的图像的假设的一个或多个统计测试I“1和I'2和/或在计算出的差值映射。 有利的是，两个或两个以上的测试结果可以组合为发展的更具体的表征。

公开(公告)号：EP2425597A1

公开(公告)日：2012-03-07

申请号：EP10714318.2

申请日：2010-04-22

申请人： Commissariat à l'Énergie Atomique et aux Énergies Alternatives ,  Telecom Paris Tech

发明人： BOUZEGZI, Abdelaziz ,  CIBLAT, Philippe ,  JALLON, Pierre

IPC分类号： H04L27/26

CPC分类号： H04L27/2647

摘要： The present invention relates to a method for identifying an OFDM signal in a received signal, according to which the received signal is sampled and cut into blocks of
P samples, each block (I) being subjected to an inverse Fourier transform in order to obtain a plurality of symbols (II) with a plurality of frequencies. For every frequency of said plurality of frequencies, the kurtosis (III) of a set of symbols (IV) obtained at said frequency is calculated, after which it is determined whether the kurtosis has a periodicity in the frequency domain using kurtosis values calculated for the frequencies of said plurality of frequencies, and the presence of an OFDM signal is identified in the received signal if the kurtosis has such a periodicity.

公开(公告)号：EP2526433B1

公开(公告)日：2014-06-25

申请号：EP11700335.0

申请日：2011-01-10

申请人： Institut Telecom - Telecom Paris Tech

发明人： DANGER, Jean-Luc

IPC分类号： G01R31/317 ,  G06F21/00

CPC分类号： H04L9/0861 ,  G01R31/31719 ,  G06F21/31 ,  G06F21/73 ,  G06F2221/2129 ,  G09C1/00 ,  H04L9/3278 ,  H04L2209/12 ,  H04L2209/26

公开(公告)号：EP2425597B1

公开(公告)日：2013-01-23

申请号：EP10714318.2

申请日：2010-04-22

申请人： Commissariat à l'Énergie Atomique et aux Énergies Alternatives ,  Telecom Paris Tech

发明人： BOUZEGZI, Abdelaziz ,  CIBLAT, Philippe ,  JALLON, Pierre

IPC分类号： H04L27/26

CPC分类号： H04L27/2647

公开(公告)号：EP3982559A1

公开(公告)日：2022-04-13

申请号：EP20306188.2

申请日：2020-10-09

申请人： Nokia Solutions and Networks Oy ,  Telecom Paris Tech

发明人： MAY, Alix ,  RAMANTANIS, Petros ,  BOITIER, Fabien ,  AWWAD, Elie ,  LONARDI, Matteo

IPC分类号： H04B10/077 ,  G01M11/00

摘要： The location and power loss of anomalies along an optical link are determined from a distance-wise signal power profile along the optical link and a reference signal power profile. A distance-wise power difference profile between the reference signal power profile and the signal power profile is calculated. A derivative of the power difference profile is calculated. An anomaly indicating a power loss in the optical link is identified from the difference profile. The estimated location of the anomaly is determined from the derivative. An estimated power loss of the anomaly is determined from the difference profile and the estimated location.