公开(公告)号：US20080275710A1

公开(公告)日：2008-11-06

申请号：US11570788

申请日：2005-06-29

申请人： Aweke Negash Lemma ,  Leon Maria Van De Kerkhof ,  Javier Francisco Aprea

发明人： Aweke Negash Lemma ,  Leon Maria Van De Kerkhof ,  Javier Francisco Aprea

IPC分类号： G10L21/00

CPC分类号： G10L19/018

摘要： The present invention relates to a method, device (12) and computer program product for enabling detection of additional data embedded in a media signal that may have been subjected to scaling. The invention also relates to an additional data detecting device (10) comprising such a device for enabling detection. An envelope discriminating unit (ED) provides a first extracted narrow band envelope signal sample (we[n]) from an input media signal sample (yb[n]), and a variable scale down sampling unit (VSDS) down samples the narrow band envelope signal sample using a down sampling rate that is dependent on a scaling factor variable value (η) for providing at least one sample of a first additional data estimate (wn[k]) in order to allow the detection of additional data in said signal sample.

摘要翻译： 本发明涉及一种方法，装置（12）和计算机程序产品，用于使得能够检测嵌入在可能已经进行缩放的媒体信号中的附加数据。 本发明还涉及一种附加数据检测装置（10），其包括用于使能检测的这种装置。 包络鉴别单元（ED）从输入媒体信号样本（y b b [n]）提供第一提取的窄带包络信号样本（w∈En [n]）） ，并且可变缩小缩小采样单元（VSDS）使用取决于缩放因子可变值（eta）的下采样率向下采样窄带包络信号采样，以提供第一附加数据估计（w 以便允许检测所述信号样本中的附加数据。

公开(公告)号：US20080235267A1

公开(公告)日：2008-09-25

申请号：US12067991

申请日：2006-09-01

申请人： Javier Francisco Aprea ,  Aweke Negash Lemma

发明人： Javier Francisco Aprea ,  Aweke Negash Lemma

IPC分类号： G06F17/30

CPC分类号： G11B27/28 ,  G06F16/634 ,  G06F16/639 ,  G06F16/68 ,  G06F16/683

摘要： A playlist of content items, e.g. songs, is automatically generated in which content items having features similar to features of a seed content item are selected. At least one feature of the seed content item is compared with at least one feature of each candidate content item to identify specific ones of the candidate content items that are similar to the seed content item. The identified candidate content items are then added to the playlist. Multiple features represent (e.g. are extracted from) different parts of a plurality of candidate content items and/or multiple features of the seed content item represent (e.g. are extracted from) different parts of the seed content item. The multiple features of the seed content item and/or of the candidate content items are compared with at least one feature of the seed content item or of the candidate content items.

摘要翻译： 内容项目的播放列表，例如 自动产生具有与种子内容项目的特征相似的特征的内容项目被选择的歌曲。 将种子内容项目的至少一个特征与每个候选内容项目的至少一个特征进行比较，以识别类似于种子内容项目的候选内容项目中的特定的一个。 然后将所识别的候选内容项目添加到播放列表。 多个特征表示（例如从多个候选内容项目的）不同部分和/或种子内容项目的多个特征（例如，从种子内容项目的不同部分中提取）。 将种子内容项目和/或候选内容项目的多个特征与种子内容项目或候选内容项目的至少一个特征进行比较。

公开(公告)号：US07546467B2

公开(公告)日：2009-06-09

申请号：US10509548

申请日：2003-02-26

申请人： Aweke Negash Lemma ,  Javier Francisco Aprea

发明人： Aweke Negash Lemma ,  Javier Francisco Aprea

IPC分类号： H04L9/00

CPC分类号： G11B20/00891 ,  G10L19/018 ,  G10L19/02 ,  G11B20/00086

摘要： A method of generating a watermark signal, embedding the watermark signal within a multimedia signal, and subsequently detecting the watermark signal is described. The watermark signal is the sum of two sequences of values, the second sequence of values being a circularly shifted version of the first sequence.

摘要翻译： 描述了一种产生水印信号，在水印信号内嵌入水印信号，随后检测水印信号的方法。 水印信号是两个值序列的和，第二个序列是第一个序列的循环版本。

公开(公告)号：US07546466B2

公开(公告)日：2009-06-09

申请号：US10509413

申请日：2003-02-26

申请人： Aweke Negash Lemma ,  Javier Francisco Aprea ,  Leon Maria Van De Kerkhof

发明人： Aweke Negash Lemma ,  Javier Francisco Aprea ,  Leon Maria Van De Kerkhof

IPC分类号： H04N7/169 ,  H04N7/171 ,  H04L9/00 ,  H04K1/00 ,  G06K9/00

CPC分类号： G11B20/00891 ,  G10L19/018 ,  G10L19/02 ,  G11B20/00086

摘要： Method and apparatus are described for compensating for time offset in a received signal, so as to correctly align the frame sequence of a received signal to a sequence of transmitted symbols. Each symbol extends over Ts signal samples. The received signal is first divided into a sequence of frames of length Ts, and then each framedivided into a multiplicity of Nb sub-frames. Subsequently, Nb sequences of values are formed, where every successive value in each sequence is derived from the corresponding sub-frame within each successive frame. Each of the Nb sequences is an estimate for the correctly aligned sequence of transmitted symbols.

摘要翻译： 描述了用于补偿接收信号中的时间偏移的方法和装置，以便将接收到的信号的帧序列正确地对准发射符号序列。 每个符号都延伸到Ts信号样本上。 接收到的信号首先被划分成长度为Ts的帧序列，然后被分成多个Nb子帧。 随后，形成Nb序列，其中每个序列中的每个连续值从每个连续帧内的相应子帧导出。 每个Nb序列是发送符号的正确对齐序列的估计。

公开(公告)号：US20090327734A1

公开(公告)日：2009-12-31

申请号：US12518140

申请日：2007-12-07

申请人： Javier Francisco Aprea ,  Aweke Negash Lemma

发明人： Javier Francisco Aprea ,  Aweke Negash Lemma

IPC分类号： H04L9/32

CPC分类号： G10L19/018

摘要： The invention deals with matching of a watermark to a host sampling rate of a multimedia signal. A watermark sampled at a first sampling rate is matched to multimedia host signal sampled at a second sampling rate, in a process where the watermark sampled at the first sampling rate is received, a scaling factor between the first sampling rate and the second sampling rate is determined, and re-scale widths of the watermark symbols are set. A modified watermark is generated wherein the watermark symbols of the modified watermark being of re-scale widths, so as to substantially match the modified watermark sequences to the second sampling rate.

摘要翻译： 本发明涉及一种水印与多媒体信号的主机采样率的匹配。 在以第一采样率采样的水印被接收的过程中，以第一采样率采样的水印与以第二采样率采样的多媒体主机信号相匹配，第一采样率和第二采样率之间的缩放因子为 确定和重新缩放水印符号的宽度。 生成经修改的水印，其中修改水印的水印符号具有重新缩放宽度，以便将修改的水印序列基本上与第二采样率相匹配。

公开(公告)号：US07840412B2

公开(公告)日：2010-11-23

申请号：US10501426

申请日：2002-12-12

申请人： Javier Francisco Aprea ,  Thomas Boltze ,  Paulus Henricus Antonius Dillen ,  Leon Maria Van De Kerkhof

发明人： Javier Francisco Aprea ,  Thomas Boltze ,  Paulus Henricus Antonius Dillen ,  Leon Maria Van De Kerkhof

IPC分类号： G10L21/04

CPC分类号： G10L19/022 ,  H04N21/4307 ,  H04N21/44016

摘要： An audio encoding scheme or a stream that encodes audio and video data is disclosed. The scheme has particular application in mezzanine-level coding in digital television broadcasting. The scheme has a mean effective audio frame length F that equals the video frame length 1/fV over an integral number M video frames, by provision of audio frames variable in length F in a defined sequence where length=F(j) at encoding. The length of the audio frames may be varied by altering the length of overlap between adjacent frames in accordance with an algorithm that repeats after a sequence of M frames. An encoder and a decoder for such a scheme are also disclosed.

摘要翻译： 公开了音频编码方案或编码音频和视频数据的流。 该方案在数字电视广播的夹层级编码中具有特殊的应用。 通过在编码时以规定的长度= F（j）的顺序提供长度为F的音频帧，该方案具有等于整数M个视频帧的视频帧长度1 / fV的平均有效音频帧长度F. 可以根据在M帧序列之后重复的算法来改变相邻帧之间的重叠长度来改变音频帧的长度。 还公开了一种用于这种方案的编码器和解码器。