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11. 发明授权

US07447629B2 Audio coding 有权
标题翻译：音频编码
公开(公告)号：US07447629B2
公开(公告)日：2008-11-04
申请号：US10520307
申请日：2003-06-19
申请人： Dirk Jeroen Breebaart
发明人： Dirk Jeroen Breebaart
IPC分类号： G10L21/00
CPC分类号： G10L19/008 , H04S3/00 , H04S2420/03
摘要： A method of encoding a multi-channel audio signal including at least a first signal component (LF), a second signal component (LR) and a third signal component (RF). The method comprises the steps of encoding the first and second signal components by a first parametric encoder (202) resulting in a first encoded signal (L) and a first set of encoding parameters (P2); encoding the first encoded signal and a further signal (R) by a second parametric encoder (201), resulting in a second encoded signal (T) and a second set of encoding parameters (P1), where the further signal is derived from at least the third signal component; and representing the multi-channel audio signal at least by a resulting encoded signal (T) derived from at least the second encoded signal, by the first set of encoding parameters and by the second set of encoding parameters.
摘要翻译：一种编码包括至少第一信号分量（LF），第二信号分量（LR）和第三信号分量（RF））的多声道音频信号的方法。该方法包括以下步骤：通过第一参数编码器（202）对第一和第二信号分量进行编码，产生第一编码信号（L）和第一组编码参数（P 2）; 通过第二参数编码器（201）对第一编码信号和另外的信号（R）进行编码，得到第二编码信号（T）和第二组编码参数（P 1），其中进一步的信号从至少第三信号分量; 并且至少由至少由第二编码信号导出的编码信号（T），第一组编码参数和第二组编码参数表示多声道音频信号。

12. 发明申请

US20080201153A1 Generation of Multi-Channel Audio Signals 有权
标题翻译：多声道音频信号的产生
公开(公告)号：US20080201153A1
公开(公告)日：2008-08-21
申请号：US11995700
申请日：2006-07-12
申请人： Dirk Jeroen Breebaart , Lars Falck Villemoes , Heiko Purnhagen , Christof Faller
发明人： Dirk Jeroen Breebaart , Lars Falck Villemoes , Heiko Purnhagen , Christof Faller
IPC分类号： G10L19/00
CPC分类号： H04S3/008 , G10L19/008
摘要： A decoder (115) generates a multi channel audio signal, such as a surround sound signal, from a received first signal. The multi-channel signal comprises a second set of audio channels and the first signal comprises a first set of audio channels. The decoder (115) comprises a receiver (401) which receives the first signal. The receiver (401) is coupled to an estimate processor (405) which generates estimated parametric data for the second set of audio channels in response to characteristics of the first set of audio channels. The estimated parametric data relates characteristics of the second set of audio channels to characteristics of the first set of audio channels. The decoder (115) furthermore comprises a spatial audio decoder (403) which decodes the first signal in response to the estimated parametric data to generate the multi-channel signal comprising the second set of channels. The invention allows use of spatial audio decoding with signals that are not encoded by a spatial audio encoder.
摘要翻译：解码器（115）从接收的第一信号生成诸如环绕声信号的多声道音频信号。多声道信号包括第二组音频通道，第一信号包括第一组音频通道。解码器（115）包括接收第一信号的接收机（401）。接收器（401）耦合到估计处理器（405），该估计处理器响应于第一组音频通道的特性而产生第二组音频通道的估计参数数据。估计的参数数据将第二组音频通道的特性与第一组音频通道的特性相关联。解码器（115）还包括空间音频解码器（403），其响应于所估计的参数数据对第一信号进行解码，以产生包括第二组信道的多信道信号。本发明允许对空间音频编码器未编码的信号使用空间音频解码。

13. 发明申请

US20080170711A1 Parametric representation of spatial audio 有权
标题翻译：空间音频的参数表示
公开(公告)号：US20080170711A1
公开(公告)日：2008-07-17
申请号：US10511807
申请日：2003-04-22
申请人： Dirk Jeroen Breebaart , Steven Leonardus Josephus Dimphina Elisabeth Van De Par
发明人： Dirk Jeroen Breebaart , Steven Leonardus Josephus Dimphina Elisabeth Van De Par
IPC分类号： H04B3/00
CPC分类号： H04R5/00 , G10L19/008 , H04S3/008 , H04S2420/03
摘要： In summary, this application describes a psycho-acoustically motivated, parametric description of the spatial attributes of multichannel audio signals. This parametric description allows strong bitrate reductions in audio coders, since only one monaural signal has to be transmitted, combined with (quantized) parameters which describe the spatial properties of the signal. The decoder can form the original amount of audio channels by applying the spatial parameters. For near-CD-quality stereo audio, a bitrate associated with these spatial parameters of 10 kbit/s or less seems sufficient to reproduce the correct spatial impression at the receiving end.
摘要翻译：总之，本应用程序描述了多声道音频信号的空间属性的心理声学动机的参数描述。该参数描述允许音频编码器中的强比特率降低，因为只需要传输一个单声道信号，并与描述信号的空间属性的（量化）参数组合。解码器可以通过应用空间参数形成原始数量的音频通道。对于近CD质量的立体声音频，与这些10 kbit / s或更小的空间参数相关联的比特率似乎足以在接收端再现正确的空间印象。

14. 发明申请

US20070081597A1 Temporal and spatial shaping of multi-channel audio signals 有权
标题翻译：多通道音频信号的时空整形
公开(公告)号：US20070081597A1
公开(公告)日：2007-04-12
申请号：US11363985
申请日：2006-02-27
申请人： Sascha Disch , Juergen Herre , Matthias Neusinger , Dirk Jeroen Breebaart , Gerard Hotho
发明人： Sascha Disch , Juergen Herre , Matthias Neusinger , Dirk Jeroen Breebaart , Gerard Hotho
IPC分类号： H04B14/04
CPC分类号： G10L19/008 , H04S3/008
摘要： A selected channel of a multi-channel signal which is represented by frames composed from sampling values having a high time resolution can be encoded with higher quality when a wave form parameter representation representing a wave form of an intermediate resolution representation of the selected channel is derived, the wave form parameter representation including a sequence of intermediate wave form parameters having a time resolution lower than the high time resolution of the sampling values and higher than a time resolution defined by a frame repetition rate. The wave form parameter representation with the intermediate resolution can be used to shape a reconstructed channel to retrieve a channel having a signal envelope close to that one of the selected original channel. The time scale on which the shaping is performed is shorter than the time scale of a framewise processing, thus enhancing the quality of the reconstructed channel. On the other hand, the shaping time scale is larger than the time scale of the sampling values, significantly reducing the amount of data needed by the wave form parameter representation.
摘要翻译：当表示所选频道的中间分辨率表示的波形的波形参数表示被导出时，由具有高时间分辨率的采样值组成的帧表示的多信道信号的选择信道可以被更高质量地编码波形参数表示，包括具有低于采样值的高时间分辨率的时间分辨率并且高于由帧重复率定义的时间分辨率的中间波形参数序列。具有中间分辨率的波形参数表示可用于对重建的信道进行整形以检索具有接近所选择的原始信道中的那一个的信号包络的信道。进行整形的时间标度比框架处理的时间标度短，从而提高重构信道的质量。另一方面，成形时间尺度大于采样值的时间尺度，显着减少波形参数表示所需的数据量。

15. 发明授权

US07181019B2 Audio coding 有权
标题翻译：音频编码
公开(公告)号：US07181019B2
公开(公告)日：2007-02-20
申请号：US10545096
申请日：2004-02-09
申请人： Dirk Jeroen Breebaart , Arnoldus Werner Johannes Oomen
发明人： Dirk Jeroen Breebaart , Arnoldus Werner Johannes Oomen
IPC分类号： H04R5/00
CPC分类号： G10L19/008 , H04S1/007 , H04S2420/03
摘要： Parametric stereo coders use perceptually relevant parameters of the input signal to describe spatial properties. One of these parameters is the phase difference between the input signals (ITD or IPD). This time difference only determines the relative time difference between the input signals, without any information about how these time differences should be divided over the output signals in the decoder. An additional parameter is included in the encoded signal that describes how the ITD or IPD should be distributed between the output channels. To this goal the delay between a computed monaural signal and one of the input signals is used.
摘要翻译：参数立体声编码器使用输入信号的感知相关参数来描述空间属性。这些参数之一是输入信号（ITD或IPD）之间的相位差。该时间差仅决定输入信号之间的相对时间差，没有关于如何在解码器中的输出信号上如何划分这些时间差的任何信息。编码信号中包含一个额外的参数，描述ITD或IPD应如何分布在输出通道之间。为此目的，使用计算的单声道信号和输入信号之一之间的延迟。

16. 发明申请

US20140126725A1 TEMPORAL AND SPATIAL SHAPING OF MULTI-CHANNEL AUDIO SIGNAL 有权
标题翻译：多通道音频信号的时间和空间形状
公开(公告)号：US20140126725A1
公开(公告)日：2014-05-08
申请号：US14151152
申请日：2014-01-09
申请人： Sascha DISCH , Juergen HERRE , Matthias NEUSINGER , Dirk Jeroen BREEBAART , Gerard HOTHO
发明人： Sascha DISCH , Juergen HERRE , Matthias NEUSINGER , Dirk Jeroen BREEBAART , Gerard HOTHO
IPC分类号： G10L19/008
CPC分类号： G10L19/008 , H04S3/008
摘要： A selected channel of a multi-channel signal which is represented by frames composed from sampling values having a high time resolution can be encoded with higher quality when a wave form parameter representation representing a wave form of an intermediate resolution representation of the selected channel is derived, the wave form parameter representation including a sequence of intermediate wave form parameters having a time resolution lower than the high time resolution of the sampling values and higher than a time resolution defined by a frame repetition rate. The wave form parameter representation with the intermediate resolution can be used to shape a reconstructed channel to retrieve a channel having a signal envelope close to that one of the selected original channel. The time scale on which the shaping is performed is shorter than the time scale of a framewise processing, thus enhancing the quality of the reconstructed channel. On the other hand, the shaping time scale is larger than the time scale of the sampling values, significantly reducing the amount of data needed by the wave form parameter representation.
摘要翻译：当表示所选频道的中间分辨率表示的波形的波形参数表示被导出时，由具有高时间分辨率的采样值组成的帧表示的多信道信号的选择信道可以被更高质量地编码波形参数表示，包括具有低于采样值的高时间分辨率的时间分辨率并且高于由帧重复率定义的时间分辨率的中间波形参数序列。具有中间分辨率的波形参数表示可用于对重建的信道进行整形以检索具有接近所选择的原始信道中的那一个的信号包络的信道。进行整形的时间标度比框架处理的时间标度短，从而提高重构信道的质量。另一方面，成形时间尺度大于采样值的时间尺度，显着减少波形参数表示所需的数据量。

17. 发明授权

US08655026B2 Robust biometric feature extraction with and without reference point 有权
标题翻译：具有和不具有参考点的鲁棒生物特征提取
公开(公告)号：US08655026B2
公开(公告)日：2014-02-18
申请号：US13378208
申请日：2010-06-17
申请人： Antonius Hermanus Maria Akkermans , Sabri Boughorbel , Dirk Jeroen Breebaart , Alphons Antonius Maria Lambertus Bruekers , Berk Gokberk , Koen Theo Johan De Groot , Emile Josephus Carlos Kelkboom , Thomas Andreas Maria Kevenaar , Aweke Negash Lemma
发明人： Antonius Hermanus Maria Akkermans , Sabri Boughorbel , Dirk Jeroen Breebaart , Alphons Antonius Maria Lambertus Bruekers , Berk Gokberk , Koen Theo Johan De Groot , Emile Josephus Carlos Kelkboom , Thomas Andreas Maria Kevenaar , Aweke Negash Lemma
IPC分类号： G06K9/00
CPC分类号： G06K9/0008 , G06K9/00067 , G06K9/036 , G06K9/629 , G06K9/6292
摘要： A basic idea of the present invention is to selectively employ one of at least two different feature extraction processes when generating a biometric template of an individual. An individual offers a physiological property, such as a fingerprint, an iris, an ear, a face, etc., from which biometric data can be derived, to a sensor of an enrollment authority. In the following, the property to be discussed will be fingerprints, even though any suitable biometric property may be used. From the fingerprint, a positional reference point of the biometric data is derived. The derivation of the positional reference point may be accomplished using any appropriate method out of a number of known methods. Such a reference point could be the location of a core, a delta, a weighted average of minutiae coordinates, or alike. Typically, the reference point includes a core of a fingerprint expressed as a three-dimensional coordinate denoted by means of xr, yr, and angle αr. A contribution indicator is calculated for the derived positional reference point, and it is determined whether the derived positional reference point can be considered reliable. Depending on the reliability of the derived reference point, one of the two different feature extraction processes is selected; either the first feature set is extracted using a method which is invariant of the derived reference point, or a method is used taking into account the derived reference point. The better the estimation of the reference point is, the more reliable the reference point-dependent extraction method is. Finally, the biometric template is generated using the extracted first feature set.
摘要翻译：本发明的基本思想是当生成个体的生物特征模板时，选择性地采用至少两种不同的特征提取过程中的一种。个体向生物特征提供生物特征，例如指纹，虹膜，耳朵，面部等，从中可以将生物特征数据导出到注册机构的传感器。在下文中，要讨论的属性将是指纹，即使可以使用任何合适的生物特征属性。从指纹，导出生物特征数据的位置参考点。可以使用多种已知方法中的任何适当的方法来实现位置参考点的推导。这样的参考点可以是核心的位置，三角形，细节坐标的加权平均值，或类似的。通常，参考点包括表示为由xr，yr和角度α表示的三维坐标的指纹核心。针对导出的位置参考点计算贡献指标，并且确定导出的位置参考点是否可以被认为是可靠的。根据导出的参考点的可靠性，选择两个不同特征提取过程之一; 使用导出的参考点不变的方法来提取第一特征集，或者使用考虑到导出的参考点的方法。参考点的估计越好，参考点依赖性提取方法越可靠。最后，使用提取的第一特征集生成生物特征模板。

18. 发明授权

US08423356B2 Method of deriving a set of features for an audio input signal 有权
标题翻译：导出音频输入信号的一组特征的方法
公开(公告)号：US08423356B2
公开(公告)日：2013-04-16
申请号：US12090362
申请日：2006-10-16
申请人： Dirk Jeroen Breebaart , Martin Franciscus McKinney
发明人： Dirk Jeroen Breebaart , Martin Franciscus McKinney
IPC分类号： G10L19/00 , G10L11/04 , G10L11/00
CPC分类号： G10H1/0008 , G10H2210/031 , G10H2210/041 , G10H2240/081
摘要： The invention describes a method of deriving a set of features (S) of an audio input signal (M), which method comprises identifying a number of first-order features (f1, f2, . . . , ff) of the audio input signal (M), generating a number of correlation values (ρ1, ρ2, . . . , ρI) from at least part of the first-order features (f1, f2, . . . , ff), and compiling the set of features (S) for the audio input signal (M) using the correlation values (ρ1, ρ2, . . . , ρI). The invention further describes a method of classifying an audio input signal (M) into a group, and a method of comparing audio input signals (M, M′) to determine a degree of similarity between the audio input signals (M, M′). The invention also describes a system (1) for deriving a set of features (S) of an audio input signal (M), a classifying system (4) for classifying an audio input signal (M) into a group, and a comparison system (5) for comparing audio input signals (M, M′) to determine a degree of similarity between the audio input signals (M, M′).
摘要翻译：本发明描述了一种导出音频输入信号（M）的一组特征（S）的方法，该方法包括识别音频输入信号的一阶特征（f1，f2，...，ff）的数量（M），从第一阶特征（f1，f2，...，ff）的至少一部分生成多个相关值（＆rgr; 1，＆rgr; 2，...，＆rgr; I），以及使用相关值（＆rgr; 1，＆rgr; 2，...，＆rgr; I）编译用于音频输入信号（M）的一组特征（S）。本发明还描述了一种将音频输入信号（M）分类成一组的方法，以及一种比较音频输入信号（M，M'）以确定音频输入信号（M，M'）之间的相似程度的方法，。本发明还描述了一种用于导出音频输入信号（M）的一组特征（S）的系统（1），用于将音频输入信号（M）分类成一组的分类系统（4）和比较系统（5），用于比较音频输入信号（M，M'）以确定音频输入信号（M，M'）之间的相似度。

19. 发明申请

US20120308093A1 Method and System for Generating a Representation of a Finger Print Minutiae Information 有权
标题翻译：用于生成手指打印细节信息表示的方法和系统
公开(公告)号：US20120308093A1
公开(公告)日：2012-12-06
申请号：US13517464
申请日：2010-12-23
申请人： Aweke Negash Lemma , Thomas Andreas Maria Kevenaar , Dirk Jeroen Breebaart , Antonius Hermanus Maria Akkermans
发明人： Aweke Negash Lemma , Thomas Andreas Maria Kevenaar , Dirk Jeroen Breebaart , Antonius Hermanus Maria Akkermans
IPC分类号： G06K9/46
CPC分类号： G06K9/00
摘要： The invention relates to a method for generating a representation of a finger print minutiae information. The invention also relates to a method for generating a representation of a finger print for biometric template protection purposes Biometric template protection techniques provide technological means to protect the privacy of biometric reference information stored in biometric. systems These methods stand in sharp contrast to approaches where biometric information is protected only by legislation and procedures around storage facilities. These systems are not reliable as they are susceptible to human and procedural errors. Template protection guarantees the protection of biometric information without the assumption that individuals are trusted or procedures are properly implemented.
摘要翻译：本发明涉及一种用于生成指纹细节信息的表示的方法。本发明还涉及用于生成用于生物特征模板保护目的的指纹的表示的方法。生物统计模板保护技术提供技术手段来保护存储在生物特征中的生物特征参考信息的隐私。系统这些方法与生物特征信息仅通过存储设施周围的立法和程序进行保护的方法形成鲜明对比。这些系统不可靠，因为它们易受人和程序错误的影响。模板保护保证了生物特征信息的保护，而不考虑个人信任或程序得到正确实施的假设。

20. 发明授权

US08265284B2 Method and apparatus for generating a binaural audio signal 有权
标题翻译：用于产生双耳音频信号的方法和装置
公开(公告)号：US08265284B2
公开(公告)日：2012-09-11
申请号：US12681124
申请日：2008-09-30
申请人： Lars Falck Villemoes , Dirk Jeroen Breebaart
发明人： Lars Falck Villemoes , Dirk Jeroen Breebaart
IPC分类号： H04R5/00
CPC分类号： H04S3/02 , G10L19/008 , H04S2400/01 , H04S2420/01 , H04S2420/03
摘要： An apparatus for generating a binaural audio signal includes a de-multiplexer and decoder which receives audio data comprising an audio M-channel audio signal which is a downmix of an N-channel audio signal and spatial parameter data for upmixing the M-channel audio signal to the N-channel audio signal. A conversion processor converts spatial parameters of the spatial parameter data into first binaural parameters in response to at least one binaural perceptual transfer function. A matrix processor converts the M-channel audio signal into a first stereo signal in response to the first binaural parameters. A stereo filter generates the binaural audio signal by filtering the first stereo signal. The filter coefficients for the stereo filter are determined in response to the at least one binaural perceptual transfer function by a coefficient processor. The combination of parameter conversion/processing and filtering allows a high quality binaural signal to be generated with low complexity.
摘要翻译：一种用于产生双耳音频信号的装置包括解复用器和解码器，其接收音频数据，音频数据包括作为N声道音频信号的下混的音频M声道音频信号和用于上混M声道音频信号的空间参数数据到N声道音频信号。转换处理器响应于至少一个双耳感知传递函数将空间参数数据的空间参数转换成第一双耳参数。矩阵处理器响应于第一双耳参数将M声道音频信号转换成第一立体声信号。立体声滤波器通过对第一立体声信号进行滤波来产生双耳音频信号。响应于系数处理器的至少一个双耳感知传递函数来确定用于立体声滤波器的滤波器系数。参数转换/处理和滤波的组合允许以低复杂度产生高质量的双耳信号。

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