公开(公告)号：US5214678A

公开(公告)日：1993-05-25

申请号：US532465

申请日：1990-05-31

申请人： Jean B. Rault ,  Yves F. Dehery ,  Jean Y. Roudaut ,  Alphons A. M. L. Bruekers ,  Raymond N. J. Veldhuis

发明人： Jean B. Rault ,  Yves F. Dehery ,  Jean Y. Roudaut ,  Alphons A. M. L. Bruekers ,  Raymond N. J. Veldhuis

IPC分类号： G11B21/10 ,  G06T9/00 ,  G10L19/00 ,  H03H17/00 ,  H03H17/02 ,  H03M7/30 ,  H03M13/31 ,  H04B1/66 ,  H04B14/04 ,  H04J13/00

CPC分类号： H04B1/667 ,  G06T9/007 ,  H03H17/0266

摘要： A digital transmission system is disclosed having a transmitter (3,6,9) and a receiver (13,16,19) for transmitting a digital signal, such as a digital audio signal, having a given sampling rate F.sub.S. The digital signal is subband coded into M subbands with sampling rate reduction. To that purpose the transmitter includes a first unit (3) for splitting up the digital signal into M signals having a sampling rate F.sub.S /M. These signals are available at the outputs (4.1 to 4.M) of the first unit (3), and are applied to M analysis filters (6.1 to 6.M), each filter (6.m) having one input (5.m) and two outputs (7.ma and 7.mb). The 2M filter outputs are coupled to 2M inputs (8.1 to 8.2M) of a signal processing unit 9 which has M outputs (10.1 to 10M) for supplying the M subband signals (S.sub.1 to S.sub.M). Each filter (6.m) is adapted to apply two different filterings on the signal applied to its input and to supply the two different filtered versions of the input signal to its two outputs. The signal processing unit 9 is adapted to supply output signals on each of the M outputs, an output signal being a combination of at least a number of input signals applied to its 2M inputs. On the receiver side a signal processing is carried out which is largely inverse to the signal processing on the transmitter side, in order to realize a signal at the output (21) that is a nearly perfect reconstruction of the input signal.

公开(公告)号：US4989087A

公开(公告)日：1991-01-29

申请号：US284390

申请日：1988-12-14

申请人： Daniele Pele ,  Bruno Choquet

发明人： Daniele Pele ,  Bruno Choquet

IPC分类号： H04N7/26 ,  G06T7/20 ,  H04N7/015

CPC分类号： H04N7/0157 ,  G06T7/2066

摘要： A method for the estimation of the motion of electronic picture points, in the plane of the picture, by means of fast, convergent and adaptive processing, notably in order to enable subsequent, efficient processing, by sub-sampling, of the picture sequence without harming the psycho-visual quality of the picture reconstructed from the sub-sampled picture. To each electronic picture point, there is assigned a displacement vector, computed according to a WALKER and RAO type of algorithmic process of prediction/correction, the predicted value of motion of the current point being the value of the original displacement vector associated with a point of origin of the preceding picture, so that said current point is the approximate projection of said point of origin along said original displacement vector.

摘要翻译： 一种用于通过快速，收敛和自适应处理在图像平面中估计电子图像点的运动的方法，特别是为了通过对图像序列进行子采​​样来实现后续的，有效的处理，而没有 损害从次采样图像重建的图像的心理视觉质量。 对于每个电子图像点，分配了根据预测/校正的算法过程的WALKER和RAO类型计算的位移矢量，当前点的运动的预测值是与点相关联的原始位移矢量的值 使得所述当前点是所述原始位移矢量的所述原点的近似投影。

公开(公告)号：US07742927B2

公开(公告)日：2010-06-22

申请号：US10257916

申请日：2001-04-12

申请人： Pierrick Philippe ,  Patrice Collen

发明人： Pierrick Philippe ,  Patrice Collen

IPC分类号： G06F15/00 ,  G10L11/00 ,  G10L19/00

CPC分类号： G10L21/038

摘要： The present invention relates to a spectral enhancement method and to an apparatus carrying out this method. The method of the invention enhanced the spectral content of a signal having an incomplete spectrum including a first spectral frequency band, the method comprising the following stages: at least one spectral content transposition of said first frequency band into a second spectral frequency band not included in said spectrum for the purpose of generating a transposed spectrum signal having a spectrum limited to said second spectral frequency band, shaping the spectrum of the transposed spectrum signal for the purpose of producing an enhanced signal, combining an incomplete spectrum signal and the enhanced signal for the purpose of producing an enhanced spectrum signal, characterized in that said spectral content is subject to a stage of whitening.

摘要翻译： 本发明涉及一种频谱增强方法和涉及该方法的装置。 本发明的方法增强了具有包括第一频谱频带的不完整频谱的信号的频谱含量，该方法包括以下阶段：将所述第一频带的至少一个频谱内容转置成不包括在第二频谱频带中的第二频谱频带 所述频谱用于产生具有限于所述第二频谱频带的频谱的转置频谱信号的目的，对转置的频谱信号的频谱进行整形，以产生增强的信号，将不完整的频谱信号和增强的信号组合为 产生增强光谱信号的目的在于，其特征在于所述光谱含量经受白化阶段。

公开(公告)号：US20090063864A1

公开(公告)日：2009-03-05

申请号：US12178365

申请日：2008-07-23

申请人： Louis Guillou

发明人： Louis Guillou

IPC分类号： H04L9/32

CPC分类号： H04L9/3247 ,  H04L9/3033 ,  H04L9/3218

摘要： A method enabling a personal computer to be authenticated by a server is provided. The method comprises the step, which includes for the user in launching the execution of a log-on procedure software, introducing personal identifiers providing access to a signature private key for long-term use relative to the duration of the session. The log-on procedure software produces: identification data of the session Id, a public ephemeral module, a public exponent and at least a pair of ephemeral pubic numbers and ephemeral private numbers related by a generic equation of the type: G=Qv (mod n) or G×Qv=1 (mod n), an ephemeral certificate linking, by means of said signature private key, Id and public ephemeral module. The public ephemeral module is of reduced size relative to the signature private key.

摘要翻译： 提供了使个人计算机能够被服务器认证的方法。 该方法包括步骤，其包括用于启动执行登录过程软件的步骤，引入提供对签名私钥的访问的个人标识符，用于相对于会话的持续时间长期使用。 登录过程软件产生：会话ID的标识数据，公共临时模块，公共指数和至少一对临时公仆数字和与以下类型的通用公式相关的短暂私人号码：G = Qv（mod n）或GxQv = 1（mod n），通过所述签名私钥，Id和公共临时模块连接的短暂证书。 公共临时模块相对于签名私钥的尺寸减小。

公开(公告)号：US07109946B2

公开(公告)日：2006-09-19

申请号：US10520528

申请日：2003-06-16

申请人： Philippe Piole

发明人： Philippe Piole

IPC分类号： H01Q9/34

CPC分类号： H01Q1/14 ,  H01Q1/16

摘要： To avoid searching for a new location for very high hectometric wave antennas, an antenna according to the invention comprises an existing vertical structure having a height of at least approximately ten meters and including at least one electrically conductive element connected to the ground, and an excitation conductor wire (4a) that is essentially electrically conductive, disposed at least in part in the vicinity of and outside the structure and connected to a emitter (E) so that the structure radiates substantially hectometric waves. The existing structure may be a broadcasting tower, a water tower, a chimney, a lighthouse or a lamp standard, wherein the excitation wire merges visually. The wire can be replaced by a conductive loop a few meters long, magnetically coupled to the structure.

摘要翻译： 为了避免搜索用于非常高等距波天线的新位置，根据本发明的天线包括具有至少大约十米的高度的现有垂直结构，并且包括连接到地面的至少一个导电元件和激励 导体线（4a），其基本上是导电的，至少部分地设置在所述结构的附近和外部并且连接到发射器（E），使得所述结构辐射基本上为恒的波。 现有的结构可以是广播塔，水塔，烟囱，灯塔或灯标准，其中激发线在视觉上合并。 电线可以由几米长的导电环代替，磁耦合到结构。

公开(公告)号：US07099396B1

公开(公告)日：2006-08-29

申请号：US09446958

申请日：1998-06-30

申请人： Pierre M. Combelles ,  Dominique M. LaCroix ,  Ali M. Jalali

发明人： Pierre M. Combelles ,  Dominique M. LaCroix ,  Ali M. Jalali

IPC分类号： H04L27/28

CPC分类号： H04L27/2634 ,  H04L27/2698

摘要： A method of modulating a multicarrier signal involves obtaining a set of 2M representative complex coefficients of transmitted data. 2LM linear combinations are calculated so as to leave 2M obtained complex coefficients. Coefficients of balancing used in these combinations represent a prototype function g(t). The 2LM coefficients are summed in given areas of memory. The 2LM memory sites represent 2L groups of M distinct partial sums. The transmitted samples are sent so as to gradually form M samples to transmit, in the memory sites, over a defined duration.

摘要翻译： 调制多载波信号的方法涉及获得传输数据的2M个代表性复系数的集合。 计算2LM线性组合，以便使2M获得复数系数。 在这些组合中使用的平衡系数表示原型函数g（t）。 2LM系数在给定的存储区域中求和。 2LM记忆位点代表2L组M个不同部分和。 发送的样本被发送以逐渐形成M个样本，以在存储器位置中在限定的持续时间内传输。

公开(公告)号：US07043684B2

公开(公告)日：2006-05-09

申请号：US10502379

申请日：2003-01-23

申请人： Alexandre Joly

发明人： Alexandre Joly

IPC分类号： H03M13/00 ,  G06F11/00

CPC分类号： H04N21/4302 ,  G10H1/0058 ,  G10H2240/325 ,  G10H2250/115 ,  G10H2250/135 ,  H04N17/004 ,  H04N21/242

摘要： The invention relates to a method of synchronizing two digital data streams with the same content, the method comprising the steps of:a) generating at given intervals for each of the two digital data streams S1 and S2 at least two characteristic numbers expressing at least one parameter characteristic of their content;b) generating from said numbers points D1 and D2 for each of the two streams S1 and S2 representing at least one of said characteristic parameters in a space of at least two dimensions, the points D1 corresponding to the stream S1 and the points D2 corresponding to the stream S2 that are situated in a time period T defining trajectories representative of the data streams S1 and S2 to be synchronized;c) shifting the time periods of duration T assigned to the digital data streams S1 and S2 relative to each other by calculating a criterion of superposition of said trajectories having an optimum value representing the required synchronization;d) choosing the shift between the time periods corresponding to said optimum value as a value representative of the synchronization.

摘要翻译： 本发明涉及一种同步具有相同内容的两个数字数据流的方法，所述方法包括以下步骤：a）以给定间隔为两个数字数据流S 1和S 2中的每一个生成， 至少两个表示其内容的至少一个参数特征的特征数字; b）从两个流S 1和S 2中的每一个产生所述数字点D 1和D 2 2 >表示至少两个维度的空间中的所述特征参数中的至少一个，与流S 1对应的点D 1和对应于流S 1的点D 2 流S 2，其位于时间段T中，定义要同步的数据流S 1和S 2的轨迹; c）通过计算具有最佳值的所述轨迹的叠加标准来相对于彼此移动分配给数字数据流S 1和S 2的持续时间T的时间段 表示所需同步的值; d）选择对应于所述最佳值的时间段之间的偏移量作为表示同步的值。

公开(公告)号：US07023265B1

公开(公告)日：2006-04-04

申请号：US10088284

申请日：2000-09-14

申请人： Jean-Francois Helard ,  Jean-Yves Baudais

发明人： Jean-Francois Helard ,  Jean-Yves Baudais

IPC分类号： H04K1/10

CPC分类号： H04L5/026 ,  H04L25/03159 ,  H04L2025/03414 ,  H04L2025/03522 ,  H04L2025/03605

摘要： The invention concerns a method for receiving a signal using a multiple carrier and code division multiple access modulation, comprising a demodulating step by application of a mathematical transform of the temporal domain to the frequency domain, a step which consists in equalizing the transformed signal and a step which consists in despreading the equalized signal. The invention is characterised in that said equalizing step takes into account, for each of the components of said transformed signal, perturbations affecting the carrier bearing said component and at least one other of said carriers and at least some of said spread codes.

摘要翻译： 本发明涉及一种使用多载波和码分多址调制来接收信号的方法，包括通过将时域的数学变换应用于频域的解调步骤，该步骤包括将经变换的信号和 其中包括解扩均衡信号。 本发明的特征在于，对于所述变换的信号的每个分量，所述均衡步骤考虑影响承载所述分量的载波和所述载波中的至少一个以及所述扩展码中的至少一些的扰动。

公开(公告)号：US07003169B1

公开(公告)日：2006-02-21

申请号：US09980108

申请日：2000-05-22

申请人： Patrick M. Lechat ,  Nathalie Laurent-Chatenet

发明人： Patrick M. Lechat ,  Nathalie Laurent-Chatenet

IPC分类号： G06K9/36

CPC分类号： H04N19/649 ,  H04N19/119 ,  H04N19/186 ,  H04N19/537 ,  H04N19/96

摘要： The invention relates to a method for coding an image that is to be coded, characterized in that said method comprises the following steps: definition of a hierarchical mesh structure having at least two levels of interconnected meshing formed from mesh units which are defined by peaks; determination, for each of said mesh units, of information concerning an error between the image which is to be coded and an interpolated image obtained from the peaks of the mesh units pertaining to the level of the meshing of the mesh unit in question; termination (33) of the refinement of mesh units having error information below a first predetermined threshold; implementation of a specific coding (35) for the mesh units having error information above a second predetermined threshold; continuation (34) of the refinement of mesh units having error information above the first predetermined threshold and below the second predetermined threshold.

摘要翻译： 本发明涉及一种用于对要编码的图像进行编码的方法，其特征在于，所述方法包括以下步骤：具有由由峰定义的网格单元形成的至少两层互连网格的分级网格结构的定义; 对于每个所述网格单元，确定关于要被编码的图像之间的误差的信息和从与所讨论的网格单元的网格的水平相关联的网格单元的峰值获得的内插图像; 具有低于第一预定阈值的错误信息的网格单元的细化的终止（33）; 对具有高于第二预定阈值的错误信息的网格单元实现特定编码（35）; 具有高于第一预定阈值并低于第二预定阈值的错误信息的网格单元的细化的连续（34）。

公开(公告)号：US06938064B1

公开(公告)日：2005-08-30

申请号：US09581272

申请日：1998-12-07

申请人： Ali Jalali ,  Pierre Leray ,  Dominique Lacroix

发明人： Ali Jalali ,  Pierre Leray ,  Dominique Lacroix

IPC分类号： G06F17/14

CPC分类号： G06F17/142

摘要： A method of calculating the fast Fourier transform or the inverse fast Fourier transform of a series of N real samples x(n), with N power of two, operating according to a time interleaving algorithm and providing the sample series X(n) in ascending order to index n and using limited calculating storage means. A method of calculating the fast Fourier transform or the inverse fast Fourier transform of a series of N conjugated complex samples X(n), with N power of two, operating according to a frequency interleaving algorithm.

摘要翻译： 一种根据时间交织算法计算N个N值为2的一系列N个实数样本x（n）的快速傅立叶变换或快速傅立叶逆变换的方法，并且以升序提供样本序列X（n） 索引n并使用有限的计算存储手段。 一种根据频率交织算法运算的N个二次幂的N个共轭复样本X（n）的一系列快速傅立叶变换或快速傅里叶反变换的方法。