公开(公告)号：EP1535028B1

公开(公告)日：2010-04-14

申请号：EP03770306.3

申请日：2003-09-08

申请人： Honeywell International Inc.

发明人： WHITE, Stanley, A.

IPC分类号： G01C19/56 ,  H03H17/04 ,  H03H21/00 ,  G06T3/40

CPC分类号： H03H17/0444 ,  G01C19/56 ,  H03H17/0285 ,  H03H17/0294 ,  H03H17/0416 ,  Y10T74/12 ,  Y10T74/1225 ,  Y10T74/1229 ,  Y10T74/1257 ,  Y10T74/1275 ,  Y10T74/1282

公开(公告)号：EP1821407A1

公开(公告)日：2007-08-22

申请号：EP06075405.8

申请日：2006-02-21

申请人： Frontier Silicon Limited

发明人： McNally, Conor

IPC分类号： H03H17/04 ,  H04L25/02

CPC分类号： H03H17/0416 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/022 ,  H04L25/0226 ,  H04L25/0232 ,  H04L27/2647

摘要： A digital filter, the filter comprising: an input to receive complex-valued input samples; an up-sampler coupled to said input to provide an up-sampled output comprising an increased number of said input samples; a filter coupled to said up-sampler to filter said up-sampled output and provide a filtered output; a phase rotation estimator coupled to said input and to said filtered output to estimate a phase rotation of a said input sample by said filter; and a phase compensator coupled to said filtered output and to said phase rotation estimator to compensate said filtered output for said estimated phase rotation.

摘要翻译： 一种数字滤波器，所述滤波器包括：用于接收复值输入样本的输入; 上采样器，耦合到所述输入端以提供包括增加数量的所述输入采样的上采样输出; 滤波器，耦合到所述上采样器以对所述上采样输出进行滤波并提供滤波输出; 相位旋转估计器，耦合到所述输入和所述滤波输出，以估计所述滤波器对所述输入样本的相位旋转; 以及耦合到所述滤波输出和所述相位旋转估计器的相位补偿器，用于补偿所述估计相位旋转的所述滤波输出。

公开(公告)号：EP0275136A2

公开(公告)日：1988-07-20

申请号：EP88300015.0

申请日：1988-01-05

申请人： Hewlett-Packard Company

发明人： Morton, Douglas W.

IPC分类号： H03H17/04

CPC分类号： H03H17/0416 ,  H03H2218/06

摘要： A multichannel, digital filter capable of operation in either decimation or interpolation mode. In a preferred arrangement, the filter includes means for receiving and storing data representing the number of channels M, the number of passes N for each channel, and mode data re­presenting decimation or interpolation mode. The multichannel filter receives a sequence of digital input values comprising time multiplexed samples from M input channels [1-8], and filters the input values from each channel to produce filtered output data for each channel. The filter includes N serially connected digital low pass filters for each channel. Low pass filter n + 1 is executed only half as often as low pass filter n, thereby providing a decimation or interpolation function, depending on the mode data. Novel means are described for sequencing the low pass filters and for storing the state variables of such filters. Means are also provided in decimation mode for outputting either a single pass N or all passes greater than or equal to N.

摘要翻译： 能够以抽取或插值模式进行操作的多通道数字滤波器。 在优选的布置中，滤波器包括用于接收和存储表示通道数M，每个通道的通过次数N以及表示抽取或插值模式的模式数据的数据的装置。 多通道滤波器接收包括来自M个输入通道[1-8]的时分复用采样的数字输入值序列，并对来自每个通道的输入值进行滤波，以产生每个通道的滤波输出数据。 该滤波器包括用于每个通道的N个串行连接的数字低通滤波器。 低通滤波器n + 1仅执行低通滤波器n的一半，从而根据模式数据提供抽取或插值功能。 描述了对低通滤波器进行排序和存储这种滤波器的状态变量的新颖手段。 还提供了用于输出单程N或大于或等于N的全部通过的抽取模式的装置。

公开(公告)号：EP1289143B1

公开(公告)日：2008-12-17

申请号：EP02254993.5

申请日：2002-07-16

申请人： TEKTRONIX, INC.

发明人： Ferguson, Kevin M.

IPC分类号： H03H17/02 ,  H03H17/04

CPC分类号： H03H17/0294 ,  H03H17/0416

公开(公告)号：EP0275136B1

公开(公告)日：1995-09-06

申请号：EP88300015.0

申请日：1988-01-05

申请人： Hewlett-Packard Company

发明人： Morton, Douglas W.

IPC分类号： H03H17/04

CPC分类号： H03H17/0416 ,  H03H2218/06

公开(公告)号：EP0275136A3

公开(公告)日：1989-12-06

申请号：EP88300015.0

申请日：1988-01-05

申请人： Hewlett-Packard Company

发明人： Morton, Douglas W.

IPC分类号： H03H17/04

CPC分类号： H03H17/0416 ,  H03H2218/06

摘要： A multichannel, digital filter capable of operation in either decimation or interpolation mode. In a preferred arrangement, the filter includes means for receiving and storing data representing the number of channels M, the number of passes N for each channel, and mode data re­presenting decimation or interpolation mode. The multichannel filter receives a sequence of digital input values comprising time multiplexed samples from M input channels [1-8], and filters the input values from each channel to produce filtered output data for each channel. The filter includes N serially connected digital low pass filters for each channel. Low pass filter n + 1 is executed only half as often as low pass filter n, thereby providing a decimation or interpolation function, depending on the mode data. Novel means are described for sequencing the low pass filters and for storing the state variables of such filters. Means are also provided in decimation mode for outputting either a single pass N or all passes greater than or equal to N.

公开(公告)号：EP2448118A1

公开(公告)日：2012-05-02

申请号：EP10306182.6

申请日：2010-10-27

申请人： ST-Ericsson SA

发明人： Tassart, Stephan

IPC分类号： H03H17/04 ,  H03H17/06

CPC分类号： H04L1/0002 ,  H03H17/0416 ,  H03H17/0455 ,  H03H17/0621 ,  H03H17/0685

摘要： There is described a method of making a linear periodically time varying system shift-invariant comprising the following steps implemented for each input signal the sample rate of which has to be converted:
- generating a set of polyphase components based on the input signal,
- feeding the generated set of polyphase components to the system, and
- generating an output signal by performing interleaving, shifting and addition on signals output by the system corresponding to the generated set of polyphase components processed by the system.

摘要翻译： 描述了一种制造线性周期性时变系统偏移不变量的方法，包括为每个输入信号实施的采样速率必须被转换的以下步骤： - 基于输入信号生成一组多相分量; - 馈送 生成的多相分量集合到系统，以及 - 通过对由系统处理的生成的多相分量组合对应的系统输出的信号进行交织，移位和相加来产生输出信号。

公开(公告)号：EP1821407B8

公开(公告)日：2009-08-26

申请号：EP06075405.8

申请日：2006-02-21

申请人： Frontier Silicon Limited

发明人： McNally, Conor

IPC分类号： H03H17/04 ,  H04L25/02

CPC分类号： H03H17/0416 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/022 ,  H04L25/0226 ,  H04L25/0232 ,  H04L27/2647

公开(公告)号：EP1535028A1

公开(公告)日：2005-06-01

申请号：EP03770306.3

申请日：2003-09-08

申请人： Honeywell International Inc.

发明人： WHITE, Stanley, A.

IPC分类号： G01C19/56 ,  H03H17/04 ,  H03H21/00 ,  G06T3/40

CPC分类号： H03H17/0444 ,  G01C19/56 ,  H03H17/0285 ,  H03H17/0294 ,  H03H17/0416 ,  Y10T74/12 ,  Y10T74/1225 ,  Y10T74/1229 ,  Y10T74/1257 ,  Y10T74/1275 ,  Y10T74/1282

摘要： An apparatus is described which reduces a time delay and a resultant phase shift in a gyroscope motor drive signal (90). The motor drive signal originates from a numerically controlled oscillator (32) whose output (60) is sampled at a predetermined rate. The apparatus includes a first element (108) which upsamples the oscillator output signal samples and a band pass filter (100) configured to receive an output from the first element and remove spectral components from the output of the first element. The apparatus further includes a third element (102) which generates a tuning parameter, β'0 (166), for tuning of the band pass filter and a scaling multiplier (112) configured to normalize an output of the filter.

公开(公告)号：EP3055928A1

公开(公告)日：2016-08-17

申请号：EP14781669.8

申请日：2014-07-25

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： HIND, Joleen ,  LAPORTE, Pierre-Andre

IPC分类号： H03H17/02 ,  H03H17/06

CPC分类号： H04L25/0262 ,  H03H17/0275 ,  H03H17/0416 ,  H03H17/0621 ,  H03H17/0685 ,  H03H2220/06

摘要： A method of filtering an input sample stream having a downsampling rate is disclosed to generate an output sample stream having an upsampling rate that is less than the downsampling rate. The input sample stream is input to a rate change filter having multiple filter branches. The input sample stream is filtered at each of the multiple filter branches to output filtered sample substreams. Each of the multiple filter branches have filter coefficients corresponding to a different phase of the filter response. The filtered sample substreams are stored in a memory and the stored filtered sample substreams are combined to generate the output sample stream.

摘要翻译： 公开了一种对具有下采样率的输入采样流进行滤波的方法，以产生具有小于下采样率的上采样率的输出采样流。 输入采样流被输入到具有多个滤波器分支的速率变化滤波器。 输入样本流在多个滤波器分支中的每一个处进行滤波以输出滤波后的样本子流。 多个滤波器分支中的每一个具有对应于滤波器响应的不同相位的滤波器系数。 将经过滤的样本子流存储在存储器中，并且存储的过滤样本子流被组合以产生输出样本流。