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1. 发明授权

US06745150B1 Time series analysis and forecasting program 有权
标题翻译：时间序列分析与预测方案
公开(公告)号：US06745150B1
公开(公告)日：2004-06-01
申请号：US09965056
申请日：2001-09-25
申请人： Leo Breiman
发明人： Leo Breiman
IPC分类号： G06F1717
CPC分类号： G06Q10/06 , G06F17/18
摘要： A method and apparatus for performing forecasting using time series data are described. In one embodiment, the method includes designating a last portion of the time series data as a base pattern, searching the remaining portion of the time series data for candidate patterns using the base pattern, and identifying candidate forecasts corresponding to the candidate patterns. The method further includes calculating a set of final forecast values based on the candidate forecasts.
摘要翻译：描述使用时间序列数据执行预测的方法和装置。在一个实施例中，该方法包括将时间序列数据的最后部分指定为基本模式，使用基本模式搜索候选模式的时间序列数据的剩余部分，以及识别与候选模式相对应的候选预测。该方法还包括基于候选预测来计算一组最终预测值。

2. 发明授权

US06651078B1 Method for determining a decimation pattern in a network communications receiver 有权
标题翻译：用于确定网络通信接收机中的抽取模式的方法
公开(公告)号：US06651078B1
公开(公告)日：2003-11-18
申请号：US09510775
申请日：2000-02-23
申请人： Eugen Gershon , Chien-Meen Hwang
发明人： Eugen Gershon , Chien-Meen Hwang
IPC分类号： G06F1717
CPC分类号： H03H17/0664
摘要： A method for selecting a decimation phase of a decimation filter includes determining a phase strength value for each phase of a plurality of phases. The quantity of phases corresponds to the decimation factor of the decimation filter. The phase strength value for a particular phase group may be representative of the sum of the magnitudes of a plurality of phase values in such particular phase group. The phase strength value for a particular phase group may represent the sum of the squares of a plurality of phase values in the group. The phase of the decimation filter is set to retain the phase with the greatest phase strength value and to filter, or decimate, the other phases.
摘要翻译：用于选择抽取滤波器的抽取相位的方法包括确定多相的各相的相位强度值。相位量对应于抽取滤波器的抽取因子。特定相位组的相位强度值可以表示这种特定相位组中的多个相位值的幅度之和。特定相位组的相位强度值可以表示组中的多个相位值的平方和。设置抽取滤波器的相位以保持具有最大相位强度值的相位并且对其它相进行滤波或抽取。

3. 发明授权

US06317765B1 Sinc filter with selective decimation ratios 有权
标题翻译：具有选择性抽取比例的Sinc滤波器
公开(公告)号：US06317765B1
公开(公告)日：2001-11-13
申请号：US09153862
申请日：1998-09-16
申请人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
发明人： Joel Page , Edwin De Angel , Wai Laing Lee , Lei Wang , Hong Helena Zheng , Chung-Kai Chow
IPC分类号： G06F1717
CPC分类号： H03H17/0282 , H03H17/0226 , H03H17/0664
摘要： A decimation filter implements selective decimation ratios by arranging a plurality of sinc filters in different pipeline arrangements to produce the desired ratio. Power savings area achieved by implementing the sinc filters as FIR sinc filters and by implementing multiplications using look up tables. One approach uses a fixed first stage filter and one or more second stage sinc filters selected from the group comprising two 4th order, 5 tap sinc filters, a 4th order, 9 tap sinc filter; a 5th order, 6 tap sinc filter and a 6th order 7 tap sinc filter. The sinc filter is particularly useful applications in the field of data acquisition and particularly in the area of seismic sensing.
摘要翻译：抽取滤波器通过在不同的流水线布置中布置多个正弦滤波器来实现选择性抽取比，以产生期望的比率。通过将sinc滤波器实现为FIR sinc滤波器并通过使用查找表来实现乘法而实现的省电区域。一种方法使用固定的第一级滤波器和一个或多个第二级sinc滤波器，其选自包括两个4阶，5抽头sinc滤波器，第4级，9抽头sinc滤波器的组; 5号，6抽头sinc过滤器和6阶7抽头sinc过滤器。 sinc滤波器在数据采集领域尤其是在地震检测领域尤其有用。

4. 发明授权

US06230101B1 Simulation method and apparatus 失效
标题翻译：仿真方法和装置
公开(公告)号：US06230101B1
公开(公告)日：2001-05-08
申请号：US09325170
申请日：1999-06-03
申请人： John R. Wallis
发明人： John R. Wallis
IPC分类号： G06F1717
CPC分类号： G06T17/00
摘要： A Linear Solver method and apparatus, embodied in a Simulator and adapted for solving systems of non-linear partial differential equations and systems of linear equations representing physical characteristics of an oil and/or gas reservoir, includes receiving a first signal representing physical characteristics of a reservoir, obtaining a residual vector {right arrow over (r)}0 from the first signal (representing errors associated with a system of nonlinear equations describing the reservoir) and a first matrix A0(representing the sensitivity of the residual vector to changes in a system of nonlinear equations), recursively decomposing matrix A0 into a lower block triangular matrix, an upper block triangular matrix, and a diagonal matrix, and generating a second matrix M0 that is an approximation to matrix A0. A solution to the systems of non-linear partial differential equations may then be found by using certain values that were used to produce the matrix M0, and that solution does not require the direct computation of A0{right arrow over (x)}={right arrow over (b)} (representing the system of linear equations) as required by conventional methods.
摘要翻译：线性求解器方法和装置，其体现在模拟器中并适于解决非线性偏微分方程的系统和表示油和/或气储层的物理特性的线性方程组，包括接收表示物理特性的第一信号从第一个信号（表示与描述储层的非线性方程组的系统相关的误差）获得残差向量（右箭头，（r）} 0）和第一矩阵A0（表示残差矢量对a 非线性方程组），将矩阵A0递归分解为下块三角矩阵，高块三角矩阵和对角矩阵，并生成作为矩阵A0近似的第二矩阵M0。然后可以通过使用用于产生矩阵M0的某些值来找到非线性偏微分方程系统的解，该解不需要直接计算A0 {右箭头（x）} = { （b）}的右箭头（表示线性方程组），如常规方法所要求。

5. 发明授权

US06182101B2 Method for sampling frequency conversion employing weighted averages 失效
标题翻译：使用加权平均值对变频进行采样的方法
公开(公告)号：US06182101B2
公开(公告)日：2001-01-30
申请号：US08524103
申请日：1995-08-21
申请人： Antti Vahatalo , Olli Ali-Yrkko
发明人： Antti Vahatalo , Olli Ali-Yrkko
IPC分类号： G06F1717
CPC分类号： H03H17/0685
摘要： An improved method converts a first sampling rate of signal values to a second sampling rate, the second sampling rate being a non-integer multiple of the first sampling rate. The method includes the steps of: interpolating between successive signal values occurring at the first sampling rate to derive further signal values at an integer multiple sampling rate thereof, the integer multiple sampling rate falling within a range that is a greater than 0.5 and less than two times an integer multiple of the second sampling rate; employing a method of weighted average interpolation or decimation to derive from the signal values occurring at an integer multiple sampling rate of the first sampling rate, signal value magnitudes occurring at the integer multiple of the second signal sampling rate; and decimating the signal values at the integer multiple of the second sampling rate by an integer multiple factor to derive second sampling rate.
摘要翻译：改进的方法将信号值的第一采样率转换为第二采样率，第二采样率是第一采样率的非整数倍。该方法包括以下步骤：在以第一采样率发生的连续信号值之间进行插值，以得到其整数倍采样率的其它信号值，整数倍采样率落在大于0.5且小于2的范围内乘以第二采样率的整数倍; 采用加权平均插值或抽取方法从以第一采样率的整数倍采样率出现的信号值得到的信号值幅度以第二信号采样率的整数倍发生; 并且以第二采样率的整数倍的信号值抽取整数倍因子以得到第二采样率。

6. 发明授权

US06748409B1 Data interpolating system 失效
标题翻译：数据插值系统
公开(公告)号：US06748409B1
公开(公告)日：2004-06-08
申请号：US09601007
申请日：2000-09-08
申请人： Kazuo Toraichi , Kouichi Wada
发明人： Kazuo Toraichi , Kouichi Wada
IPC分类号： G06F1717
CPC分类号： G06T3/4007
摘要： A data interpolating system by which the operating quantity can be decreased and no truncation error is produced. A data processor comprises a discrete value extracting section 10, a sampling function operating section 20, and a convolution operating section 30 so as to perform interpolation between discrete values. The discrete value extracting section 10 extracts just previous four value from successively inputted discrete data, and the sampling function operating section 20 calculates, when the data interpolating position is specified, the value of the interpolating position based on the distances between the data interpolating position and the discrete values by using a sampling function of local support which can be differentiated only once over the whole region. The convolution operating section 30 multiplies the values of the four sampling functions by the discrete values, and adds up the products, thus performing convolution operation and outputting the interpolation value.
摘要翻译：可以减少操作量并且不产生截断误差的数据内插系统。数据处理器包括离散值提取部分10，采样函数运算部分20和卷积运算部分30，以便执行离散值之间的内插。离散值提取部分10从连续输入的离散数据中提取刚刚的前四个值，并且采样函数运算部20在指定数据内插位置时，基于数据插入位置与数据插值位置之间的距离，计算内插位置的值通过使用本地支持的采样功能，可以在整个区域上仅区分一次的离散值。卷积运算部30将四个采样函数的值乘以离散值，将乘积相加，进行卷积运算并输出插值。

7. 再颁专利

USRE38427E1 Linear interpolation operator 失效
标题翻译：线性插补算子
公开(公告)号：USRE38427E1
公开(公告)日：2004-02-10
申请号：US08341831
申请日：1994-11-17
申请人： Jacques Meyer
发明人： Jacques Meyer
IPC分类号： G06F1717
CPC分类号： G06F17/17
摘要： A linear interpolation operator for determining the value y of a function of x when one knows the value y1 corresponding to x1, and a value y2 corresponding to x2 (where x2

8. 发明授权

US06487573B1 Multi-rate digital filter for audio sample-rate conversion 有权
标题翻译：用于音频采样率转换的多速率数字滤波器
公开(公告)号：US06487573B1
公开(公告)日：2002-11-26
申请号：US09277696
申请日：1999-03-26
申请人： Zhongnong Jiang , Rustin W. Allred , James R. Hochschild
发明人： Zhongnong Jiang , Rustin W. Allred , James R. Hochschild
IPC分类号： G06F1717
CPC分类号： H03H17/0275 , H03H17/0685
摘要： A method for providing a sample-rate conversion (“SRC”) filter on an input stream of sampled data provided at a first rate, to produce an output stream of data at a second rate different from the first rate. The input stream of sampled data is operated on with a first low-order interpolation filter routine to produce a first stream of intermediate data. The first stream of intermediate data is operated on with a first simplified interpolation filter routine, having a substantially small number of operations to calculate the coefficients thereof, to produce a second stream of intermediate data. The second stream of intermediate data is operated on with a first decimating filter routine to produce the output stream of data.
摘要翻译：一种用于在以第一速率提供的采样数据的输入流上提供采样率转换（“SRC”）滤波器的方法，以产生与第一速率不同的第二速率的输出数据流。采样数据的输入流利用第一低阶内插滤波程序进行操作，以产生第一中间数据流。中间数据的第一个流是利用第一简化内插滤波程序进行操作的，其具有基本上少量的操作以计算其系数，以产生第二中间数据流。第二个中间数据流通过第一抽取滤波器程序进行操作，以产生输出的数据流。

9. 发明授权

US06434515B1 Signal analyzer system and method for computing a fast Gabor spectrogram 有权
标题翻译：用于计算快速Gabor谱图的信号分析仪系统和方法
公开(公告)号：US06434515B1
公开(公告)日：2002-08-13
申请号：US09370310
申请日：1999-08-09
申请人： Shie Qian
发明人： Shie Qian
IPC分类号： G06F1717
CPC分类号： G06F17/141
摘要： A signal analyzer, method and memory medium for generating a time varying spectrum for input signals characterized by frequency components which change in time. The signal analyzer includes a source of a sequence of digital signals representative of an input signal, a processor coupled to the source, and a memory medium coupled to the processor. The memory medium stores a software program which is executable by the processor to compute the time-varying spectrum of the input signal. When the processor executes the software program, the processor is operable to first compute a Gabor transform (that is, a sampled short-time Fourier transform) of the digital signals to produce Gabor coefficients. The processor then computes a two dimensional auto-correlation of the Gabor coefficients to produce auto-correlation results. The auto-correlation results are then applied to a 2-dimensional fast interpolation filter to produce the time-varying spectrum, wherein the time-varying spectrum is a Gabor spectrogram. The signal analyzer may repeat the above steps n+1 times, based on the order determined by a user, and sum the results for an n order time-varying spectrum. The process more may then operate to process and/or display the time-varying spectrum.
摘要翻译：一种信号分析器，方法和存储介质，用于为以时间变化的频率分量为特征的输入信号产生时变频谱。信号分析器包括表示输入信号的数字信号序列的源，耦合到源的处理器和耦合到处理器的存储介质。存储介质存储可由处理器执行的软件程序，以计算输入信号的时变频谱。当处理器执行软件程序时，处理器可操作以首先计算数字信号的Gabor变换（即采样的短时傅里叶变换）以产生Gabor系数。然后，处理器计算Gabor系数的二维自相关以产生自相关结果。然后将自相关结果应用于二维快速内插滤波器以产生时变谱，其中时变谱是Gabor谱图。信号分析器可以基于用户确定的顺序重复上述步骤n + 1次，并且对n阶时变谱进行求和。然后该过程可以操作以处理和/或显示时变谱。

10. 发明授权

US06427158B1 FIR decimation filter and method 有权
标题翻译： FIR抽取滤波器和方法
公开(公告)号：US06427158B1
公开(公告)日：2002-07-30
申请号：US09737150
申请日：2000-12-14
申请人： Binan Wang , Souichirou Ishizuka
发明人： Binan Wang , Souichirou Ishizuka
IPC分类号： G06F1717
CPC分类号： H03H17/0664
摘要： An FIR decimation filter includes the a shift register (51) including M flip-flops arranged in M/R rows (52, 54, 56, 58) of R bits each, wherein M/R is an integer and R is the decimation ratio of the FIR decimation filter. The shift register has an input for receiving serial digital input information. Half of the rows are sequentially arranged in an upper section and the other half of the rows are arranged sequentially in a lower section. Each row has a left tap and a right tap. The shift register includes a bidirectional shift register in the top row of the lower section. A control circuit (70) controls shifting operations which each shift input data and data present in the shift register (51) by R bits so as to load a new group of R bits into each row. M/(2R) pre-adders (57, 59) each have first and second inputs connected to the right tap points of symmetrically opposite rows of the upper section and lower section, respectively and arithmetic circuit (60,62) is coupled to receive output information from the pre-adders and effectively multiplying the output information by the coefficient information. An accumulator circuit (74) is coupled to accumulate information from an output of the arithmetic circuit and output the accumulated information as a filtered, decimated representation of the serial digital input information.
摘要翻译：一个FIR抽取滤波器包括一个移位寄存器（51），它包括以每个R位M / R行（52,54,56,58）排列的M个触发器，其中M / R是整数，R是抽取比的FIR抽取滤波器。移位寄存器具有用于接收串行数字输入信息的输入。行中的一半依次排列在上部，而另一半行依次排列在下部。每排都有一个左水龙头和一个右水龙头。移位寄存器包括在下部的顶行中的双向移位寄存器。控制电路（70）控制移位操作，每个移位操作将移位寄存器（51）中存在的输入数据和数据移位R位，以便将新的R位组加载到每一行中。 M /（2R）预加载器（57,59）分别具有连接到上部和下部的对称相对行的右抽头点的第一和第二输入端，运算电路（60,62）被耦合以接收输出来自预加法器的信息，并将输出信息有效地乘以系数信息。耦合累加器电路（74）以从运算电路的输出累积信息，并输出累积的信息作为串行数字输入信息的滤波抽取表示。

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