公开(公告)号：US08184922B2

公开(公告)日：2012-05-22

申请号：US10554530

申请日：2004-04-22

申请人： Frank Matschullat

发明人： Frank Matschullat

IPC分类号： G06K9/40 ,  G06K9/32 ,  H04B15/00 ,  H04N9/07

CPC分类号： H03H17/0275 ,  H03H17/0227 ,  H03H17/0621

摘要： A digital filter configuration for the filtration of a digital video signal, wherein the functions of a zoom filter, in the form of a low-pass filter, which is a polyphase filter, and of at least one peaking filter, in the form of a high-pass filter, are realized, wherein the functions of the two filters are realized in a combined filter (1-17) in an integrated circuit in a manner such that, for each phase of the zoom filter to be set, combined filter coefficients are calculated from filter coefficients stored for this phase of the zoom filter and from filter coefficients stored for the peaking filter, which combined filter coefficients are applied to the video data to be filtered in a filtration process, so that both filtration functions are executed with the combined filter coefficients in this filtration process.

摘要翻译： 一种用于过滤数字视频信号的数字滤波器配置，其中以低通滤波器形式的变倍滤波器（其为多相滤波器）和至少一个峰化滤波器的功能为 高通滤波器，其中两个滤波器的功能以集成电路中的组合滤波器（1-17）实现，使得对于要设置的变焦滤波器的每个相位，组合的滤波器系数 由存储在变焦滤波器的该相位的滤波器系数以及从峰值滤波器存储的滤波器系数中计算，该滤波器系数被应用于在滤波过程中要滤波的视频数据，以便两者的过滤功能被执行 在这个过滤过程中组合滤波器系数。

公开(公告)号：US08126083B2

公开(公告)日：2012-02-28

申请号：US11547741

申请日：2005-04-08

申请人： Xiaojun Yang ,  Richard W. Citta ,  Scott M. Lopresto

发明人： Xiaojun Yang ,  Richard W. Citta ,  Scott M. Lopresto

IPC分类号： H03K9/00

CPC分类号： H04L25/03057 ,  H04L7/0062 ,  H04L25/0212 ,  H04L2025/0342 ,  H04L2025/0349

摘要： A method of controlling sampling frequency of a sampling device (40), where the sampling device (40) generates samples (62) in response to the receipt of a signal (20) resulting from a transmission of a series of symbols through a channel, the method including the steps of estimating (46) a channel impulse response of the channel from the samples, calculating a characteristic of the channel impulse response estimate, and determining (52) the sampling frequency in accordance with the characteristic.

摘要翻译： 一种控制采样设备（40）的采样频率的方法，其中采样设备（40）响应于通过信道传输一系列符号而产生的信号（20）而产生采样（62） 该方法包括以下步骤：从样本估计（46）信道的信道脉冲响应，计算信道脉冲响应估计的特性，以及根据特性确定（52）采样频率。

公开(公告)号：US08115874B2

公开(公告)日：2012-02-14

申请号：US11575487

申请日：2005-09-16

申请人： Shaori Guo ,  Selliah Rathnam ,  Gwo Giun Lee

发明人： Shaori Guo ,  Selliah Rathnam ,  Gwo Giun Lee

IPC分类号： H04N9/64

CPC分类号： H04N19/426 ,  H04N7/014 ,  H04N19/433

摘要： Memory storage requirements for digital signal processing operations, for example, motion-compensated video scan rate conversion, that produce intermediate output data, which is then used as an input to the operation, are reduced by reordering operations and organizing memory allocations in a special manner to allow intermediate output at a particular execution time, to substantially share the same memory space as the intermediate output of a previous execution time. Such a reduction in the amount of memory required for processing operations advantageously reduces cost and power consumption.

摘要翻译： 通过重排序操作和以特殊方式组织存储器分配，减少用于数字信号处理操作的存储器存储要求，例如，产生中间输出数据的运动补偿视频扫描速率转换，其被用作操作的输入 以允许在特定执行时间的中间输出基本上共享与先前执行时间的中间输出相同的存储空间。 这种减少处理操作所需的存储量有利地降低了成本和功耗。

公开(公告)号：US08102915B2

公开(公告)日：2012-01-24

申请号：US10577105

申请日：2004-10-19

申请人： Reinier Bernardus Maria Klein Gunnewiek ,  Frederik Jan De Bruijn

发明人： Reinier Bernardus Maria Klein Gunnewiek ,  Frederik Jan De Bruijn

IPC分类号： H04N7/12 ,  H04N7/137 ,  H04N7/36

CPC分类号： H04N19/553 ,  G06T7/207

摘要： A conversion unit for converting a first motion vector field (MVF1) into a second motion vector field (MVF2). The first motion vector field being computed, on basis of a first image and a second image of a sequence of images, for a temporal position between the first and second images. A first establishing means establishes a first group of un-referenced pixels in the first image. A second establishing means establishes a second group of un-referenced pixels in the second image. A computing means computes a match error of a candidate motion vector oriented from the first group of un-referenced pixels to the second group of un-referenced pixels. A comparing means for comparing the match error with a predetermined match threshold and assigning the candidate motion vector to one of the motion vectors of the second motion vector field if the match error is below the predetermined match threshold.

摘要翻译： 用于将第一运动矢量场（MVF1）转换为第二运动矢量场（MVF2）的转换单元。 基于图像序列的第一图像和第二图像计算第一和第二图像之间的时间位置的第一运动矢量场。 第一建立装置在第一图像中建立第一组未参考像素。 第二建立装置在第二图像中建立第二组未参考像素。 计算装置计算从第一组未参考像素到第二组未参考像素的候选运动矢量的匹配误差。 比较装置，用于将匹配误差与预定匹配阈值进行比较，并且如果匹配误差低于预定匹配阈值，则将候选运动矢量分配给第二运动矢量场的运动矢量之一。

公开(公告)号：US08098769B2

公开(公告)日：2012-01-17

申请号：US11237611

申请日：2005-09-28

申请人： Ingo Steinbach

发明人： Ingo Steinbach

IPC分类号： H04L27/00 ,  H03D3/18

CPC分类号： H04L27/0014 ,  H03L7/0805 ,  H04L2027/0032 ,  H04L2027/0046 ,  H04L2027/0057

摘要： The invention relates to recovering a carrier for a synchronous demodulator, that receives an input signal. A carrier is reconstructed for the provided input signal, and the input signal (in) and carrier (tr) are mixed to generate a mixed signal to be outputted (i, q), wherein a residual phase error of the mixed signal is corrected by a phase shift to provide a phase corrected output signal.

摘要翻译： 本发明涉及恢复用于同步解调器的载波，其接收输入信号。 为所提供的输入信号重建载波，混合输入信号（载波）和载波（tr）以产生待输出的混合信号（i，q），其中混合信号的残留相位误差由 提供相位校正输出信号的相移。

公开(公告)号：US08095743B2

公开(公告)日：2012-01-10

申请号：US12749011

申请日：2010-03-29

申请人： Matthias Vierthaler ,  Carsten Noeske

发明人： Matthias Vierthaler ,  Carsten Noeske

IPC分类号： G06F12/00

CPC分类号： G06F13/1663 ,  G06F9/321 ,  G06F9/3824 ,  G06F9/526

摘要： Access to a memory area by a first processor that executes a first processor program and a second processor that executes a second processor program is granted to one of the first processor and the second processor at a time. Access to the memory area by the first processor and the second processor are cyclically uniquely allocated (e.g., t≡[(ad mod m)=o]) between the first and the second processor by the first and second processor programs.

摘要翻译： 一次一个地向第一处理器和第二处理器中的一个授予执行第一处理器程序的第一处理器和执行第二处理器程序的第二处理器对存储器区域的访问。 由第一处理器和第二处理器对第一处理器和第二处理器之间的存储区进行循环唯一地分配（例如，t≡[（ad mod m）= o]）。

公开(公告)号：US08073054B2

公开(公告)日：2011-12-06

申请号：US10501424

申请日：2002-12-12

申请人： Gerben Johan Hekstra ,  Stephan Oliver Mietens ,  Peter Hendrik Nelis De With

发明人： Gerben Johan Hekstra ,  Stephan Oliver Mietens ,  Peter Hendrik Nelis De With

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC分类号： H04N19/51 ,  H04N19/56

摘要： A motion estimation unit (500) for estimating a current motion vector comprises a match error unit (506) for calculating match errors of respective candidate motion vectors and a selector (508) for selecting the current motion vector from the candidate motion vectors by means of comparing the match errors of the respective candidate motion vectors. Some of the candidate motion vectors are extracted from a set of previously estimated motion vectors. Other candidate motion vectors are calculated based on multiple motion vectors which are selected from the set of previously estimated motion vectors.

摘要翻译： 用于估计当前运动矢量的运动估计单元（500）包括用于计算各个候选运动矢量的匹配误差的匹配误差单元（506）和用于从候选运动矢量中选择当前运动矢量的选择器（508） 比较各个候选运动矢量的匹配误差。 从一组先前估计的运动矢量中提取一些候选运动矢量。 基于从先前估计的运动矢量的集合中选择的多个运动矢量来计算其他候选运动矢量。

公开(公告)号：US08065593B2

公开(公告)日：2011-11-22

申请号：US12781749

申请日：2010-05-17

申请人： Chi-Ping Nee ,  Abraham Krieger ,  Shachar Kons ,  Chun-Hsuan Kuo

发明人： Chi-Ping Nee ,  Abraham Krieger ,  Shachar Kons ,  Chun-Hsuan Kuo

IPC分类号： H03M13/00

CPC分类号： H03M13/2936 ,  H03M13/2732 ,  H03M13/293

摘要： An erasures assisted block code decoder and related method are provided. The erasures assisted block code decoder includes a first block decoder, an erasures processor, and a second block code decoder. The first block decoder, for example, a Reed-Solomon decoder, is configured to decode blocks of data elements, e.g., bytes, that were previously affected by bursty errors. The first block decoder is also configured to identify those of such blocks it is unable to decode. The erasures processor is configured to identify, as erasures, data elements in the un-decodable blocks by utilizing, in the erasures identification process, data elements in the decoded blocks that were corrected by the first block decoder. The second block decoder, e.g., the same or different Reed-Solomon decoder, is configured to decode one or more of the un-decodable blocks by utilizing, in the decoding, the erasures identified by the erasures processor.

摘要翻译： 提供了一种擦除辅助块代码解码器及相关方法。 擦除辅助块码解码器包括第一块解码器，擦除处理器和第二块码解码器。 第一块解码器，例如Reed-Solomon解码器，被配置为对先前受突发错误影响的诸如字节的数据元素块进行解码。 第一块解码器还被配置为识别其不能解码的这些块的那些。 擦除处理器被配置为通过在擦除识别处理中利用由第一块解码器校正的解码块中的数据元素来识别不可解码块中的数据元素作为擦除。 第二块解码器，例如相同或不同的里德 - 所罗门解码器，被配置为通过在解码中利用由擦除处理器识别的擦除来解码一个或多个不可解码块。

公开(公告)号：US07995648B2

公开(公告)日：2011-08-09

申请号：US11547816

申请日：2005-04-08

申请人： Jingsong Xia ,  Shidong Chen ,  Richard W. Citta ,  Gopalan Krishnamurthy ,  Scott M. Lopresto ,  David A. Willming ,  Xiaojun Yang ,  Jilian Zhu

发明人： Jingsong Xia ,  Shidong Chen ,  Richard W. Citta ,  Gopalan Krishnamurthy ,  Scott M. Lopresto ,  David A. Willming ,  Xiaojun Yang ,  Jilian Zhu

IPC分类号： H04B1/10 ,  H04L1/00

CPC分类号： H04L25/03057 ,  H04L1/006 ,  H04L7/0062 ,  H04L7/042 ,  H04L25/0212

摘要： A digital receiver for processing a signal received from a channel includes a digital demodulator and an equalizer coupled to the digital demodulator. The equalizer includes a feedforward filter and a decision feedback equalizer (DFE), wherein the feedforward filter includes a plurality of feedforward filter taps. Coefficients are associated with the plurality of feedforward filter taps and the values of all of the coefficients associated with the plurality of feedforward filter taps are dynamically determined.

摘要翻译： 用于处理从信道接收的信号的数字接收机包括耦合到数字解调器的数字解调器和均衡器。 均衡器包括前馈滤波器和判决反馈均衡器（DFE），其中前馈滤波器包括多个前馈滤波器抽头。 系数与多个前馈滤波器抽头相关联，并且动态地确定与多个前馈滤波器抽头相关联的所有系数的值。

公开(公告)号：US07974342B2

公开(公告)日：2011-07-05

申请号：US10563849

申请日：2004-07-01

申请人： Gerard De Haan

发明人： Gerard De Haan

IPC分类号： H04N7/32 ,  H04N7/46 ,  H04N7/01

CPC分类号： H04N7/014 ,  H04N7/0132

摘要： A motion-compensated image signal interpolation unit (200) for generating an interpolated image being located at a first predetermined temporal distance (a) from the first image and being located at a second predetermined temporal distance (1−a) from the second image is disclosed. The interpolation unit (200) comprises: motion estimation means (202) for furnishing a first and a second motion vector relating to the first and second image; furnishing means (204, 206) for furnishing a first group of samples on basis of values of pixels of the first image and the first motion vector and for furnishing a second group of samples on basis of values of pixels of the second image and the second motion vector, and filtering means (212) for ordered statistical filtering of the samples of the first and the second group to produce a first value of a first pixel of the interpolated image (102), whereby a first quotient is substantially equal to a second quotient, the first quotient being determined by a first spatial distance (x1) between a first one of the samples of the first group and a second one of the samples of the first group and the first predetermined temporal distance (α), the second quotient being determined by a second spatial distance (x2) between a first one of the samples of the second group and a second one of the samples of the second group and the second predetermined temporal distance (1−α).

摘要翻译： 一种运动补偿图像信号插值单元，用于产生位于距离第一图像的第一预定时间距离（a）并且位于距离第二图像的第二预定时间距离（1-a）处的内插图像; 披露 插值单元（200）包括：用于提供与第一和第二图像相关的第一和第二运动向量的运动估计装置（202） 提供装置（204,206），用于根据第一图像和第一运动矢量的像素的值来提供第一组样本，并且用于根据第二图像和第二图像的像素的值来提供第二组样本 运动矢量和滤波装置（212），用于对第一和第二组的样本进行有序统计滤波，以产生内插图像（102）的第一像素的第一值，由此第一商大体上等于第二组 商，所述第一商由所述第一组的样本的第一个样本和所述第一组的样本的第二个样本和所述第一预定时间距离（α）之间的第一空间距离（x1）确定，所述第二商 由第二组的第一样本和第二组的样本的第二个和第二预定时间距离（1-α）之间的第二空间距离（x2）确定。