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1. 发明公开

EP0991023A3 A method of creating 3-D facial models starting from face images 有权
标题翻译：一种用于生成面部图像的3-D面部模型方法
公开(公告)号：EP0991023A3
公开(公告)日：2001-02-21
申请号：EP99119498.6
申请日：1999-10-01
申请人： CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.
发明人： Francini, Gianluca , Quaglia, Mauro
IPC分类号： G06T15/00 , G06T15/70
CPC分类号： G06K9/00268 , G06T11/001 , G06T15/04 , G06T17/10 , G06T17/20
摘要： The method allows the creation of 3-D facial models, which can be used, for instance, for the avatar implementation, video-communication applications, video games, video productions, and for the creation of advanced man-machine interfaces. At least one image of a human face is provided together with a 3D facial model (M) having a vertex structure and comprising a number of surfaces chosen within the set formed by a face surface (V), surfaces of the right eye (OD) and left eye (OS), respectively, and surfaces of the upper teeth (DS) and lower teeth (DI), respectively. Among the vertices of the structure of the model (M) and on such at least one face image, respective sets of homologous points are chosen. The model structure (M) is then modified in such a way that the above respective sets of homologous points are made to coincide.

2. 发明公开

EP1063775A1 Integrated circuit phase-locked loop charge pump 有权
标题翻译： Ladchumpe f PLL在integrierter Schaltung
公开(公告)号：EP1063775A1
公开(公告)日：2000-12-27
申请号：EP00113303.2
申请日：2000-06-21
申请人： CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.
发明人： Burzio, Marco , Balistreri, Emanuele
IPC分类号： H03L7/089
CPC分类号： H03L7/0895
摘要： A charge pump (2) is supplied to reset in rated conditions the error signal of a phase-locked loop of the type whereby a phase detector (1) periodically supplies this pump (2) with a first and second impulse having emission instants dependent on the phase ratio between phase-locked loop input signals and are allocated to control circuit output increase or decrease respectively by means of ring filter (3a, 3b). The pump features circuits (21, 22, 23, 24, 28) to transform the first and second impulse into a first and second voltage signal of longer duration than maximum impulse duration, the voltage signals having values the difference of which depends on the phase ratio between the loop input signals, and to generate a current signal representative of such difference.
摘要翻译：提供电荷泵（2）以在额定条件下复位该类型的锁相环的误差信号，由此相位检测器（1）周期性地向泵（2）供应具有依赖于发射时间的发射瞬间的第一和第二脉冲锁相环输入信号之间的相位比分别通过环形滤波器（3a，3b）分配给控制电路输出增加或减小。泵具有将第一和第二脉冲变换成比最大脉冲持续时间长的持续时间的第一和第二电压信号的电路（21,22,23,24,28），该电压信号的差值取决于相位环路输入信号之间的比率，并产生代表这种差异的电流信号。

3. 发明公开

EP0892504A3 Method of and apparatus for digital radio signal reception 失效
标题翻译：用于接收数字无线电信号的方法和装置
公开(公告)号：EP0892504A3
公开(公告)日：2000-07-19
申请号：EP98108856.0
申请日：1998-05-15
申请人： CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.
发明人： Ansbro, Andrew Peter , Drakul, Spase , Fanigliulo, Antonio , Fontana, Gianluca
IPC分类号： H04B7/005 , H04B7/08
CPC分类号： H04B7/0851 , H04B7/0845 , H04B7/0891
摘要： A receiver is described, for instance for GSM systems, wherein a plurality of digital signals each comprising a training sequence (x p (t)) usable to generate an estimation of the transmission channel are received in diversity (A.1 ... A.N) in the form of a plurality of replicas (10.1 ... 10.N) each comprising a respective replica of the training sequence. The received digital signal is subjected to a delaying action thereby obtaining a plurality of versions of such signal, each comprising a respective set of signal replicas. Each version is subjected to a respective filtering action (23.1 ... 23.N) independently from the other versions, by employing a respective first set of filtering coefficients (w* 11 ... w* N1 ... w* Nj ) obtained starting from a respective initial set of filtering coefficients. This respective initial set is obtained by performing, for each replica of the received signal, a filtering action exploiting a respective second set of filtering coefficients identified as a signal (u (t)) able to generate, by convolution (u (t) * x p (t)) with the training sequence, a unitary function δ (t) on a given time window, preferably on one bit. The filtering coefficients of the first set are derived starting from said initial set of filtering coefficients through an MMSE adaptation, preferably with a initial rapid convergence phase of the RLS type followed by an optimisation phase of the LMS type.

4. 发明公开

EP0998162A2 Memory for searching information through prefix analysis, for nodes of high speed communication networks 有权
标题翻译：存储器，用于通过Präfixanalyse信息搜索高速网络的一个节点
公开(公告)号：EP0998162A2
公开(公告)日：2000-05-03
申请号：EP99121337.2
申请日：1999-10-26
申请人： CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.
发明人： Filippi, Enrica , Innocenti, Viviana
IPC分类号： H04Q11/04 , H04L12/56
CPC分类号： H04L49/105 , H04L45/00 , H04L45/54 , H04L49/309 , Y10S707/99936
摘要： A memory for searching information through prefix analysis, in particular for building routing tables for nodes of high speed communication networks, such as Internet network, comprises a memory element (M1) which stores a set of information items associated each one to a mask information indicative of the number of significant characters in the respective prefix and to a target information. For the implementation of a search criterion based on the longest prefix match, each cell comprises an information field that provides either an address of a next row for the continuation of a search or an information relating to a target reached, and a pair of flags (GO, TARGET) specifying the contents of the information field. An auxiliary vector (AUX), which comprises as many cells as many the memory rows are, is arranged to store, when the flags in a cell in the memory element indicate the reaching of a target together with the need of prosecuting search operations in a next row, the target information in its cell associated to said next row.
摘要翻译：一种通过前缀分析用于构建路由表用于高速通信网络，：诸如因特网的网络的节点搜索信息，在特定的存储器，包括：存储器元件（M1），其存储相关联的一组信息项每一个以表示一个掩模信息的在respectivement前缀和目标信息显著字符数。对于搜索条件的基础上，最长前缀匹配的实现中，每个单元包括（信息字段并提供下一行的地址的任一搜索或信息与目标达成的延续，以及一对标志 GO TARGET）指定的信息字段的内容。辅助载体（AUX），其包括许多存储器行，被安排为存储尽可能多的细胞，当在存储元件单元中的标志指示一个目标的连同有需要的起诉搜索操作到达下一行，关联到所述下一行其小区的目标信息。

5. 发明公开

EP0992871A2 CMOS circuit for generating a current reference 有权
标题翻译： CMOS电路用于产生电流参考
公开(公告)号：EP0992871A2
公开(公告)日：2000-04-12
申请号：EP99119497.8
申请日：1999-10-01
申请人： CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.
发明人： Balistreri, Emanuele , Burzio, Marco
IPC分类号： G05F3/24
CPC分类号： H03L7/0891 , G05F3/245 , G05F3/247 , G05F3/262
摘要： A current reference generator comprises a pair of identical units (G1, G2) which generate respective current references (I1, I2), and a circuit (CL) for the linear combination of the two references. In each of the two units, the elements (S1, S2) which, by their current-voltage characteristics, determine the working point comprise respectively a single transistor (T1) and a pair of transistors (T2, T3), of the same type as the first, connected in series. A differential amplifier (AD) maintains stable the working point of the respective unit as power supply voltage varies.
摘要翻译：电流参考发生器包括产生相应电流参考（I1，I2）的一对相同单元（G1，G2）和用于两个参考的线性组合的电路（CL）。在两个单元中的每一个中，通过其电流 - 电压特性确定工作点的元件（S1，S2）分别包括相同类型的单个晶体管（T1）和一对晶体管（T2，T3）作为第一个，串联连接。随着电源电压的变化，差分放大器（AD）保持各个单元的工作点稳定。

6. 发明公开

EP0949729A2 Laser module with external cavity and optical fibre reflector 审中-公开
标题翻译：雷蒙德米尔外部Resonator和faseroptischem Reflektor
公开(公告)号：EP0949729A2
公开(公告)日：1999-10-13
申请号：EP99106983.2
申请日：1999-04-09
申请人： CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.
发明人： Meliga, Marina , Scofet, Marco , Paoletti, Roberto , Tallone, Luigi
IPC分类号： H01S3/085
CPC分类号： H01S5/146 , H01S5/026 , H01S5/1225
摘要： A laser module (1) comprises a Fabry-Perot cavity active element (2) with a facet (3) bearing an anti-reflection coating and an external cavity made by an optical fibre Bragg grating (5) with low reflectivity. This grating (5) presents a non-uniform profile of modulation of the refractive index, asymmetrical in the direction of the grating length, such as to give rise to a position of the equivalent mirror plane that is offset towards the end of the grating (5) that is closer to the active element (2).
摘要翻译：激光模块（1）包括具有防反射涂层的小面（3）和由具有低反射率的光纤布拉格光栅（5）制成的外腔的法布里 - 珀罗腔有源元件（2）。该光栅（5）呈现了在光栅长度方向上不对称的折射率调制的不均匀轮廓，以产生朝向光栅端部偏移的等效反射镜平面的位置（ 5）更靠近有源元件（2）。

7. 发明公开

EP0949518A1 Fibre bragg grating with offset equivalent mirror plane and method for its manufacture 有权
标题翻译： Bragg-Gitterfüroptische Faser mit verschobeneräquivalenterSpiegelebene und Herstellungsmethodedafür
公开(公告)号：EP0949518A1
公开(公告)日：1999-10-13
申请号：EP99106984.0
申请日：1999-04-09
申请人： CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.
发明人： Boschis, Laura , Rossotto, Oriana , Gnazzo, Angelantonio , Tallone, Luigi
IPC分类号： G02B6/16 , G02B6/12
CPC分类号： G02B6/124 , G02B6/02085
摘要： A grating (10) made in the core of an optical fibre (1) presents a non-uniform and asymmetrical profile of the modulation of the refractive index in the direction of the length, which profile is represented by a curve that rises gradually and monotonically from a minimum and substantially null value, with substantially horizontal tangent, in correspondence with an end of the grating (10), until a maximum value, also with substantially horizontal tangent, which is reached in correspondence with the other end of the grating (10).
摘要翻译：在光纤（1）的芯中制成的光栅（10）在长度方向上具有折射率调制的不均匀和不对称轮廓，该曲线由逐渐和单调上升的曲线表示从具有与光栅（10）的端部对应的基本水平切线的最小值和基本上为零的值，直到与光栅（10）的另一端对应的达到的最大值也具有基本上水平的切线）。

8. 发明授权

EP0656716B1 Method and device for power control in the base-to-mobile link of a mobile radio system with code division multiple access 失效
标题翻译：的方法和装置用于在从所述基部到所述移动体移动多址码分连接的功率控制
公开(公告)号：EP0656716B1
公开(公告)日：1999-08-18
申请号：EP94118857.5
申请日：1994-11-30
申请人： CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.
发明人： Gaiani, Eros , Palestini, Valerio
IPC分类号： H04M1/72 , H04B7/005
CPC分类号： H04W52/143 , H04W52/146 , H04W52/346

9. 发明公开

EP0842907A1 Active single mode optical fibres and method for their fabrication 失效
标题翻译： Aktive optische Einmoden-Fasern und Verfahren zu deren Herstellung
公开(公告)号：EP0842907A1
公开(公告)日：1998-05-20
申请号：EP97120151.2
申请日：1997-11-18
申请人： CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.
发明人： Braglia, Marco
IPC分类号： C03C13/04 , C03B37/027 , C03B37/012
CPC分类号： C03C13/046 , C03B37/01211 , C03B37/01268 , C03B37/027 , C03B2201/06 , C03B2201/30 , C03B2201/40 , C03B2201/42 , C03B2201/80 , C03B2201/82 , C03B2201/86 , C03B2203/24 , C03C13/041 , C03C13/043
摘要： An active single mode optical fiber has the core made of a rare earth doped non-oxide glass and the cladding made of an oxide glass. The glass of the core has a melting temperature lower than that of the glass of the cladding and lying within the range of the softening temperatures of the latter. In a preferred embodiment the core is made of a chalcogenide glass and the cladding is made of a lead silicate glass. To produce the fibre, a preform, obtained by introducing an element made of the non-oxide glass into the hole (2) of a capillary tube (1) made of the oxide glass, is brought to a temperature lying within the range of softening temperatures of the oxide glass and not lower than the melting temperature of the non-oxide glass, and is drawn. The capillary tube (1), during the drawing process, serves as a container for the molten glass of the core.
摘要翻译：有源单模光纤具有由稀土掺杂的非氧化物玻璃制成的芯和由氧化物玻璃制成的包层。芯的玻璃的熔融温度低于包层玻璃的熔化温度，并且处于软化温度的范围内。在优选实施例中，芯由硫族化物玻璃制成，并且包层由硅酸铅玻璃制成。为了制造纤维，通过将由非氧化物玻璃制成的元件引入到由氧化物玻璃制成的毛细管（1）的孔（2）中而获得的预成型件达到处于软化范围内的温度氧化物玻璃的温度并且不低于非氧化物玻璃的熔融温度，并被拉伸。毛细管（1）在拉伸过程中用作芯的熔融玻璃的容器。

10. 发明公开

EP0792070A3 Device for manipulating compressed video sequences 失效
标题翻译：装置用于操纵压缩的视频序列
公开(公告)号：EP0792070A3
公开(公告)日：1998-04-01
申请号：EP97103018.4
申请日：1997-02-25
申请人： CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.
发明人： Finotello, Andrea , Gandini, Marco , Garino, Pierangelo , Marchisio, Mauro
IPC分类号： H04N7/26
CPC分类号： H04N19/85 , H04N19/42 , H04N19/423 , H04N19/46 , H04N19/61
摘要： An integrated circuit for manipulating digitised video sequences is provided, for use in a system for transmission and reception of compressed video sequences to perform, possibly with the aid of an external memory, re-ordering, format conversion, prediction and motion compensation on the pictures in a sequence. The device (MSM) comprises means (MT1, MT2) for temporarily storing sequences to be manipulated and data read from the external memory; means (DIB) for decoding information about the manipulations to be performed; addressing means (ISS, CM, CME) for transferring the data between the device and the external memory; means (IU, RC) for configuring the device by means of a remote processing unit; means (IHV) for processing the data read from the external memory; means (SU) for arranging the output sequences in the format required by the function to be performed. A controller may control, supervise and set up the functions to be performed.

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