-
公开(公告)号：EP3967239A1
公开(公告)日：2022-03-16
申请号：EP21190936.1
申请日：2021-08-12
申请人： SUPERSONIC IMAGINE , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE -CNRS- , Ecole Supérieure de Physique et de Chimie Industrielles de la Ville de Paris
摘要： Procédé de caractérisation ultrasonore d'un milieu comprenant une étape de génération d'une série d'ondes ultrasonores incidentes, une étape de génération d'une matrice de réflexion expérimentale R ui (t) définie entre la base d'émission ( i ) en entrée et une base de réception ( u ) en sortie, une étape de détermination d'une matrice de réflexion focalisée RFoc(r in , r out , δt) du milieu entre un transducteur virtuel d'entrée (TV in ) calculé à partir d'une focalisation en entrée de la matrice de réflexion expérimentale et un transducteur virtuel de sortie (TV out ) calculé à partir d'une focalisation en sortie de la matrice de réflexion expérimentale, les réponses du transducteur de virtuel de sortie (TV out ) étant prises à un instant temporel décalé d'un délai additionnel δt par rapport à un instant temporel des réponses du transducteur virtuel d'entrée (TV in ).
-
12.发明公开
公开(公告)号：EP3844844A1
公开(公告)日：2021-07-07
申请号：EP19756375.2
申请日：2019-08-23
-
公开(公告)号：EP3047537A1
公开(公告)日：2016-07-27
申请号：EP14715268.0
申请日：2014-04-02
CPC分类号： H04B17/309 , H01Q3/46 , H01Q21/0018 , H04L5/0048 , H04W4/80
摘要： A wave shaping device which comprises a tunable impedance surface and a controller connected to the surface in order to control its impedance. The shaping device further comprises a transmission module for receiving a pilot signal used to control the impedance of the surface.
-
公开(公告)号：EP2499700B1
公开(公告)日：2013-10-09
申请号：EP10776356.7
申请日：2010-11-09
CPC分类号： H01Q15/006 , H01Q3/44 , H01Q3/446 , H01Q15/00 , H01Q15/0006 , H01Q15/0086 , H01Q15/10 , H01Q25/00
-
15.发明授权
公开(公告)号：EP2121136B1
公开(公告)日：2012-11-28
申请号：EP08762136.3
申请日：2008-02-20
发明人： PERNOT, Mathieu , FINK, Mathias , TANTER, Mickaël , MONTALDO, Gabriel , AUBRY, Jean-François , SINKUS, Ralph
CPC分类号： G01S7/52049 , A61B8/0808 , A61N7/02 , A61N2007/0078 , A61N2007/0095 , G01S15/8909
-
16.发明公开PROCÉDÉ ET DISPOSITIF DE CARTOGRAPHIE DE MILIEUX FIBREUX 有权VERFAHREN UND VORRICHTUNG ZUR ABBILDUNG VON FASERMEDIEN
公开(公告)号：EP3022578A1
公开(公告)日：2016-05-25
申请号：EP14750574.7
申请日：2014-07-16
CPC分类号： A61B8/4494 , A61B8/463 , G01S7/52036 , G01S7/52085 , G01S15/8925 , G01S15/8977 , G01S15/8997
摘要： A method for mapping fibrous media by ultrasound propagation from a set (2) of transducers, which involves emitting a plurality of unfocused incident waves having different wave fronts, capturing the signals reverberated by the medium to each transducer, determining coherent signals corresponding respectively, for each transducer, to the contributions coming from various virtual focal points in the medium, then determining the orientation of the fibres by comparing the spatial coherence between said coherent signals, in a plurality of directions.
摘要翻译： 一种通过超声从传感器传播来测定纤维介质的方法，其中：发射多个具有不同波前的未聚焦的入射超声波; 捕获由介质向每个换能器反射的信号; 分别对应于每个换能器对来自介质中不同虚构焦点的贡献的相干信号被确定; 然后通过在多个方向上比较所述相干信号之间的空间相干性来确定光纤的取向。
-
17.发明公开SYSTEM FOR ILLUMINATING AN OBJECT WITH A WAVE OR FOR IMAGING AN OBJECT WITH A WAVE 有权照明系统，以一波对象或用于对物体成像一波
公开(公告)号：EP2539962A1
公开(公告)日：2013-01-02
申请号：EP10716874.2
申请日：2010-02-22
IPC分类号： H01Q3/46 , H01Q15/00 , H01Q15/10 , H01Q19/06 , G02B5/18 , G02B21/00 , G10K11/30 , G01N29/06 , G01Q60/18 , G02B6/122
CPC分类号： H01Q3/46 , B82Y20/00 , B82Y35/00 , G01N29/0681 , G01Q60/22 , H01Q15/0086 , H01Q15/10 , H01Q19/062
摘要： A system for illuminating an object with a wave or for imaging an object (1) with a wave comprises a lens (10), a plurality of transducers (20) and a control unit (30) connected to the plurality of transducers. The lens comprises a plurality of resonator elements (12) incorporated inside a medium (11) and is able to convert a near field wave of the lens to a far field wave, or reciprocally. The resonator elements are at a sub wavelength distance from each others. The control unit provides signals to the transducers so that a plurality of points on the object are illuminated as desired, or obtains signals from the transducers to build an image of a plurality of points of the object. The points are at sub wavelength distance from each others.
-
18.发明公开
公开(公告)号：EP2499700A1
公开(公告)日：2012-09-19
申请号：EP10776356.7
申请日：2010-11-09
CPC分类号： H01Q15/006 , H01Q3/44 , H01Q3/446 , H01Q15/00 , H01Q15/0006 , H01Q15/0086 , H01Q15/10 , H01Q25/00
摘要： A device for receiving and/or emitting an electromagnetic wave having a free space wavelength λ
0 comprised between 1 mm and 10 cm, comprising a medium (11) of solid dielectric material and the free space wavelength λ
0 corresponding to a wavelength λ inside the medium, a plurality of conductor elements (12) incorporated inside the medium and spaced apart from each other of a distance lower than λ/10, and one antenna element (13). The conductor elements are not loop elements. A tuned conductor element among the conductor elements has a first end at a distance from the antenna element which is lower than λ/10, and has a length H
wire adapted to generate an electromagnetic resonance in the tuned conductor element corresponding to the wavelength λ.-
公开(公告)号：EP2342582A1
公开(公告)日：2011-07-13
申请号：EP09764270.6
申请日：2009-10-30
IPC分类号： G01S7/52
CPC分类号： G01S7/52049 , A61B8/0816 , G01S7/52036 , G01S15/8977
摘要： Method of probing by wave propagation, in which an incident wave is emitted several times towards one and the same target zone (r0) in a scattering medium (1), and then the backscattered signals generated by these waves are averaged.
-
20.发明公开METHOD AND DEVICE FOR MEASURING A MEAN VALUE OF VISCO-ELASTICITY OF A REGION OF INTEREST 有权方法和装置用于测量感兴趣区域的粘弹性的中值
公开(公告)号：EP2146640A1
公开(公告)日：2010-01-27
申请号：EP07804950.9
申请日：2007-05-16
发明人： BERCOFF, Jeremy , SAVERY, David , TANTER, MickaëL , GENNISON, Jean-Luc , FINK, Mathias , COHEN-BACRIE, Claude
IPC分类号： A61B8/08
CPC分类号： A61B8/485 , A61B5/0051 , A61B8/08 , A61B8/4483 , G01S7/52036 , G01S7/52042 , G01S15/8927
摘要： The invention relates to a method for measuring a mean visco-elasticity value for a soft material. The method uses a single probe carrying at least one transducer and includes the steps of: (a) inducing, in a constraint zone, at least one burst of mechanical vibrations in order to generate internal shear waves in the tissue propagating from the constraint zone into the tissue, (b1) measuring, with the transducer, the transient tissue displacements in at least one first measurement zone in the tissue, and wherein the first measurement zone is located away from the constraint zone, and (c) estimating a mean visco-elasticity of the region of the tissue situated between the constraint zone and the first measurement zone from the measured transient tissue displacements of the tissue in the first measurement zone.
-
-
-
-
-
-
-
-
-
搜索结果
51 条记录 (耗时 0.022 秒)
