公开(公告)号：WO2004047327A1

公开(公告)日：2004-06-03

申请号：PCT/EP2002/012814

申请日：2002-11-15

Applicant: TELECOM ITALIA S.P.A. ,  STMICROELECTRONICS S.R.L. ,  ETTORRE, Donato ,  GRAZIANO, Maurizio ,  MELIS, Bruno ,  FINOTELLO, Andrea ,  RUSCITTO, Alfredo

Inventor： ETTORRE, Donato ,  GRAZIANO, Maurizio ,  MELIS, Bruno ,  FINOTELLO, Andrea ,  RUSCITTO, Alfredo

IPC: H04B1/707

CPC classification number: H04B1/7085 ,  H04B1/709

Abstract: A device for maintaining fine alignment between an incoming spread spectrum signal and a locally generated code in a digital communication receiver comprises: - a delay line (56) for storing a plurality of consecutive samples (E-1, E, M, L, L+1) of the incoming spread spectrum signal; - three digitally controlled interpolators (24, 26, 28) for determining by interpolation between consecutive samples an interpolated early sample (e), an interpolated middle sample (m) and an interpolated late sample (1); - two correlators (30, 32) for calculating an error signal (ξ) as the difference between the energy of the symbols computed from the interpolated early (e) and late (1) samples; - a circuit for generating a control signal (S¿OUT?) for controlling the interpolation phase of the digitally controlled interpolator (24) for the early sample (e), and - a digital non-linear filter (68), for smoothing the control signal (S¿OUT?) of the interpolator (24) for the early sample (e), enabling the update operation of the control signal only when the absolute value (|ξ(n)|) of the error signal at a time instant n is smaller than the absolute value (|ξ(n-1)|) of the same error signal at a time instant n-1.

Abstract translation: 一种用于在数字通信接收机中保持输入扩频信号与本地生成代码之间的精确对准的装置，包括： - 延迟线（56），用于存储多个连续样本（E-1，E，M，L，L +1）的入射扩频信号; - 三个数字控制内插器（24,26,28），用于通过内插的早期采样（e），内插中间样本（m）和插值后期样本（1）来确定连续采样之间的内插; - 用于计算误差信号（xi）的两个相关器（30,32）作为从内插的早期（e）和晚期（1）样本计算的符号的能量之间的差; - 用于产生用于控制用于早期采样（e）的数字控制内插器（24）的内插相位的控制信号（S _ OUT <）的电路，以及 - 数字非线性滤波器（68），用于平滑 用于早期采样（e）的内插器（24）的控制信号（S _OUT？），使得只有当误差信号的绝对值（|| xi（n）||） 时刻n小于在时刻n-1的相同误差信号的绝对值（|| xi（n-1）||）。

公开(公告)号：WO2003017084A3

公开(公告)日：2003-02-27

申请号：PCT/IT2002/000540

申请日：2002-08-14

Applicant: TELECOM ITALIA S.P.A. ,  ETTORRE, Donato ,  MELIS, Bruno ,  RUSCITTO, Alfredo

Inventor： ETTORRE, Donato ,  MELIS, Bruno ,  RUSCITTO, Alfredo

IPC: G06F7/52

Abstract: An iterative multiplier circuit (10) comprises modules (15 to 18) that subdivide the respective input signals (Z n , J n ) into a first part (msb(Z n ), msb(J n )) that is the power of 2 immediately lower or equal to the input signal and a second part (Z n -msb(Z n ), J n - msb(J n )) corresponding to the difference between the input signal and the aforesaid first part. A shift module (19) generates a respective output signal through shift operations that implement the multiplication operation for numbers that are powers of 2. The circuit operates according to a general iterative scheme in which at each step three components of the output signal (X.Y) are computed, corresponding to the product of two numbers that are powers of 2 and to two products in which at least one of the factors is a power of 2. The number of steps in the iteration scheme is controllable, thus allowing to vary the accuracy with which the output value (X.Y) is calculated.

公开(公告)号：WO2006007871A1

公开(公告)日：2006-01-26

申请号：PCT/EP2004/008372

申请日：2004-07-23

Applicant: TELECOM ITALIA S.P.A. ,  FODRINI, Maurizio ,  ETTORRE, Donato ,  BOLLANO, Gianmario

Inventor： FODRINI, Maurizio ,  ETTORRE, Donato ,  BOLLANO, Gianmario

IPC: G10L15/28

CPC classification number: G10L15/30

Abstract: A method for compressing data, said data being represented by an input vector having Q features, wherein Q is an integer higher than 1, the method for compressing data comprising the steps of 1) providing a vector codebook comprising sub-sets of indexed Q-feature reference vectors and threshold values associated with said sub-sets for a prefixed feature; 2) identifying a sub-set of reference vectors among said sub-sets by progressively comparing the value of a feature of the input vector - which corresponds to said prefixed feature - with the threshold values associated with said--sub-sets; 3) identifying the reference vector which - within the sub-set identified in step 2) - provides the lowest distortion with respect to the input vector.

Abstract translation: 一种用于压缩数据的方法，所述数据由具有Q特征的输入向量表示，其中Q是高于1的整数，所述压缩数据的方法包括以下步骤：1）提供矢量码本，其包括索引Q- 特征参考矢量和与前缀特征的所述子集相关联的阈值; 2）通过将与所述前缀特征相对应的输入向量的特征的值逐渐比较与所述子集相关联的阈值，来识别所述子集中的参考矢量的子集; 3）识别在步骤2）中识别的子集内 - 相对于输入向量提供最低失真的参考矢量。

公开(公告)号：WO2005050623A1

公开(公告)日：2005-06-02

申请号：PCT/EP2003/012629

申请日：2003-11-12

Applicant: TELECOM ITALIA S.P.A. ,  BOLLANO, Gianmario ,  ETTORRE, Donato ,  POUSAS NAVARRO, Rodrigo

Inventor： BOLLANO, Gianmario ,  ETTORRE, Donato ,  POUSAS NAVARRO, Rodrigo

IPC: G10L21/02

CPC classification number: G10L21/0208

Abstract: A filter such as a Wiener filter for noise reduction in a signal, such as a speech signal, affected by background noise includes a circuit (50) for determining values of an update function relating new value of estimated noise power (P noise-New ) to a previous value of estimated noise power (P noise ), the update function being a function of said previous estimated noise power (P noise ) and a mean input power spectral density (P IN-PSD ). The circuit (50) includes a look-up table (30) having values for the update function stored therein with the previous value of estimated noise power (P noise ) and the mean input power spectral density (P in _PSD ) as a first and a second search entry, respectively. These search entries are entered via an input module (10) and exploited by search circuitry (12 to 28) associated with the look-up table (30) for selectively searching values for the update function in the look-up table (30). The search is preferably carried out on the basis of an index (26) computed starting from said first and second search entries.

Abstract translation: 诸如用于噪声降低的维纳滤波器的滤波器（例如语音信号）受背景噪声的影响包括：电路（50），用于确定将估计噪声功率的新值（Pnoise-New）与 估计噪声功率（Pnoise）的先前值，更新功能是所述先前估计噪声功率（Pnoise）和平均输入功率谱密度（PIN-PSD）的函数。 电路（50）包括具有存储在其中的具有估计噪声功率（Pnoise）的前一值和平均输入功率谱密度（Pin_PSD）的值作为第一和第二的查找表（30） 搜索条目。 这些搜索条目经由输入模块（10）输入，并且由与查找表（30）相关联的搜索电路（12至28）利用，用于选择性地搜索查找表（30）中的更新功能的值。 搜索优选地基于从所述第一和第二搜索条目开始计算的索引（26）来执行。

公开(公告)号：WO0208966A3

公开(公告)日：2003-01-09

申请号：PCT/IT0100378

申请日：2001-07-17

Applicant: TELECOM ITALIA LAB SPA ,  BOLLANO GIANMARIO ,  ETTORRE DONATO ,  TUROLLA MAURA ,  VALENTINI MARCELLO

Inventor： BOLLANO GIANMARIO ,  ETTORRE DONATO ,  TUROLLA MAURA ,  VALENTINI MARCELLO

IPC: G06F17/50

CPC classification number: G06F17/5022

Abstract: Models destined for verification are described at the level of synthesizable description (for example VHDL). The synthesizable description (200) is automatically converted (300) into a C++ model (200'). This allows verification of the correctness of the synthesizable description by comparing the results of a verification carried out on the original description from the cell in C++ with the results of a similar verification of the C++ model obtained by automatic conversion of the synthesizable description. It is also possible to make the C++ model obtained by automatic conversion (200') to interact with a system model including blocks (201, 202, 203) of a system model at C++ level, in particular with the possibility of producing concurrent events that occur in correspondence with a main timing signal source.

Abstract translation: 用于验证的模型在可综合描述的级别（例如VHDL）进行描述。 可综合描述（200）被自动转换（300）为C ++模型（200'）。 这允许通过将来自C ++中的单元的原始描述的验证结果与通过可合成描述的自动转换获得的C ++模型的类似验证的结果进行比较来验证可综合描述的正确性。 也可以使通过自动转换（200'）获得的C ++模型与包括C ++级别的系统模型的块（201,202,203）的系统模型交互，特别是具有产生并发事件的可能性 与主定时信号源对应地发生。

公开(公告)号：WO2006128480A1

公开(公告)日：2006-12-07

申请号：PCT/EP2005/005818

申请日：2005-05-31

Applicant: TELECOM ITALIA S.p.A. ,  CERVONE, Alessio ,  COLLOTTA, Ivano, Salvatore ,  COPPO, Paolo ,  ETTORRE, Donato ,  FODRINI, Maurizio ,  TUROLLA, Maura

Inventor： CERVONE, Alessio ,  COLLOTTA, Ivano, Salvatore ,  COPPO, Paolo ,  ETTORRE, Donato ,  FODRINI, Maurizio ,  TUROLLA, Maura

IPC: G10L13/00

CPC classification number: G10L13/047 ,  G10L15/30

Abstract: A service architecture for providing to a user terminal (2) of a communications network (12) textual information and relative speech synthesis, the user terminal being provided with a speech synthesis engine (4) and a basic database of speech waveforms (6), comprising: - a content server (16) for downloading textual information requested by means of a browser application (18) on said user terminal; - a context manager (22) for extracting context information from the textual information requested by said user terminal; - a context selector (24) for selecting an incremental database (DB1, .., DBN) of speech waveforms associated to extracted context information and for downloading the incremental database into the user terminal; - a database manager (26) on the user terminal (2) for managing the composition of an enlarged database of speech waveforms for the speech synthesis engine comprising the basic (6) and the incremental (DB1, .., DBN) databases of speech waveforms.

Abstract translation: 一种用于向通信网络（12）的用户终端（2）提供文本信息和相对语音合成的服务架构，所述用户终端设置有语音合成引擎（4）和语音波形（6）的基本数据库， 包括： - 内容服务器（16），用于下载通过所述用户终端上的浏览器应用程序（18）请求的文本信息; - 用于从所述用户终端请求的文本信息中提取上下文信息的上下文管理器（22） - 上下文选择器（24），用于选择与所提取的上下文信息相关联的语音波形的增量数据库（DB1，...，DBN）和用于将增量数据库下载到用户终端中; - 用户终端（2）上的数据库管理器（26），用于管理用于语音合成引擎的语音波形的放大数据库的组成，其包括基本（6）和增量（DB1，...，DBN）语音数据库 波形。

公开(公告)号：WO2003017085A3

公开(公告)日：2003-02-27

申请号：PCT/IT2002/000539

申请日：2002-08-14

Applicant: TELECOM ITALIA S.P.A. ,  ETTORRE, Donato ,  MELIS, Bruno ,  RUSCITTO, Alfredo

Inventor： ETTORRE, Donato ,  MELIS, Bruno ,  RUSCITTO, Alfredo

IPC: G06F7/552

Abstract: An iterative power raising circuit, such as a squarer (10) comprises a module (13, 14) able to subdivide the respective input signal (Z n ) into a first part (msb(Z n )) that is the power of 2 immediately lower than or equal to the input signal and a second part (Z n - msb(Z n )) corresponding to the difference between the respective input signal and the first part. A first component of the output signal is determined as the summation of squares of powers of 2 implemented by inserting zeros between the adjacent bits of the input binary signal (X). A shifter module (15) generates an additional component of the output signal through shift operations that implement multiplication operations for numbers that are powers of 2. The circuit operates according to a general iterative scheme and the number of steps in the iteration scheme is selectively controllable in order selectively to vary the precision with which the output value (Y) is calculated.

公开(公告)号：WO2003017085A2

公开(公告)日：2003-02-27

申请号：PCT/IT2002/000539

申请日：2002-08-14

Applicant: TELECOM ITALIA LAB S.P.A. ,  ETTORRE, Donato ,  MELIS, Bruno ,  RUSCITTO, Alfredo

Inventor： ETTORRE, Donato ,  MELIS, Bruno ,  RUSCITTO, Alfredo

IPC: G06F7/552

CPC classification number: G06F7/552 ,  G06F2207/3852 ,  G06F2207/5523

Abstract: An iterative power raising circuit, such as a squarer (10) comprises a module (13, 14) able to subdivide the respective input signal (Z n ) into a first part (msb(Z n )) that is the power of 2 immediately lower than or equal to the input signal and a second part (Z n - msb(Z n )) corresponding to the difference between the respective input signal and the first part. A first component of the output signal is determined as the summation of squares of powers of 2 implemented by inserting zeros between the adjacent bits of the input binary signal (X). A shifter module (15) generates an additional component of the output signal through shift operations that implement multiplication operations for numbers that are powers of 2. The circuit operates according to a general iterative scheme and the number of steps in the iteration scheme is selectively controllable in order selectively to vary the precision with which the output value (Y) is calculated.

Abstract translation: 诸如平方器（10）的迭代功率提升电路包括能够将相应的输入信号（Zn）细分成第二部分（msb（Zn））的模块（13,14），其是2的功率，其立即低于 或等于输入信号的第二部分（Zn-msb（Zn））和与第一部分之间的差相对应的第二部分（Zn-msb（Zn））。 输出信号的第一分量被确定为通过在输入二进制信号（X）的相邻位之间插入零而实现的功率2的平方的和。 移位器模块（15）通过对作为功率为2的数字执行乘法运算的移位运算产生输出信号的附加分量。该电路根据一般迭代方案运行，并且迭代方案中的步数可以选择性地控制 以便有选择地改变计算出输出值（Y）的精度。

公开(公告)号：WO2008074342A1

公开(公告)日：2008-06-26

申请号：PCT/EP2006/012204

申请日：2006-12-19

Applicant: TELECOM ITALIA S.P.A. ,  ETTORRE, Donato ,  TUROLLA, Maura ,  LICCIARDI, Luigi ,  VARRIALE, Antonio ,  RABBINI, Alessandro

Inventor： ETTORRE, Donato ,  TUROLLA, Maura ,  LICCIARDI, Luigi ,  VARRIALE, Antonio ,  RABBINI, Alessandro

IPC: G06F21/00 ,  H04L29/06

CPC classification number: H04L63/0853 ,  G06F21/32 ,  G06F21/34 ,  G06F21/42 ,  G06F2221/2107 ,  H04L63/0861 ,  H04W12/02 ,  H04W12/04 ,  H04W12/06

Abstract: An arrangement for secure user authentication comprises a computer or telecommunication terminal (T1) with a smartcard (SC1) and a device (D1); the smartcard (SC1) is adapted to securely store biometric information relating to at least one user and the device (D1) is adapted to detect biometric data of users; the smartcard (SC1) and the device (D1) comprise a radio interface for communicating together and a module for exchanging biometric information between each other; in this way, tampering of the transferred biometric information is difficult. In order to increase the security, one or more of the following measures may be used: a secure communication channel between the device (D1) and the smartcard (SC1), a direct (preferably short range) communication channel between the device (D1) and the smartcard (SC1), encryption and decryption of biometric information transferred between the device (D1) and the smartcard (SC1).

Abstract translation: 用于安全用户认证的安排包括具有智能卡（SC1）和设备（D1）的计算机或电信终端（T1）。 所述智能卡（SC1）适于安全地存储与至少一个用户有关的生物特征信息，并且所述设备（D1）适于检测用户的生物特征数据; 智能卡（SC1）和设备（D1）包括用于一起通信的无线电接口和用于彼此之间交换生物​​信息的模块; 以这种方式，转移的生物特征信息的篡改是困难的。 为了提高安全性，可以使用以下措施之一：设备（D1）和智能卡（SC1）之间的安全通信信道，设备（D1）之间的直接（优选短距离）通信信道， 和智能卡（SC1），在设备（D1）和智能卡（SC1）之间传送的生物特征信息的加密和解密。

公开(公告)号：WO2006136179A1

公开(公告)日：2006-12-28

申请号：PCT/EP2005/006581

申请日：2005-06-20

Applicant: TELECOM ITALIA S.p.A. ,  COLLOTTA, Ivano, Salvatore ,  ETTORRE, Donato ,  FODRINI, Maurizio ,  GALLO, Pierluigi ,  SPAGNOLO, Roberto

Inventor： COLLOTTA, Ivano, Salvatore ,  ETTORRE, Donato ,  FODRINI, Maurizio ,  GALLO, Pierluigi ,  SPAGNOLO, Roberto

IPC: G10L15/28 ,  G10L11/02

CPC classification number: G10L25/78 ,  G10L15/30

Abstract: A method of transmitting speech data to a remote device in a distributed speech recognition system, comprising the steps of: - dividing an input speech signal into frames; - calculating, for each frame, a voice activity value representative of the presence of speech activity in said frame; - grouping the frames into multiframes, each multiframe comprising a predetermined number of frames; - calculating, for each multiframe, a voice activity marker representative of the number of frames in said multiframe representing speech activity; and - selectively transmitting, on the basis of said voice activity marker associated to each multiframe, said multiframes to said remote device.

Abstract translation: 一种在分布式语音识别系统中向远程设备发送语音数据的方法，包括以下步骤： - 将输入语音信号划分成帧; - 对于每个帧计算代表所述帧中的语音活动的存在的语音活动值; - 将帧分组成多帧，每个复帧包括预定数量的帧; - 对于每个复帧，计算代表所述代表语音活动的多帧中的帧数的语音活动标记; 以及 - 基于与每个复帧相关联的所述语音活动标记，将所述多个帧选择性地发送到所述远程设备。