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公开(公告)号:US20060198557A1
公开(公告)日:2006-09-07
申请号:US10551973
申请日:2004-03-31
IPC分类号: G06K9/40
CPC分类号: G11B20/00891 , G10L19/018 , G11B20/00086
摘要: The present invention relates to methods, devices, a signal and recorded medium relating to a fragile watermark (WM) in a media signal. According to the invention a fragile watermark is provided in or in coding related to a buried data channel (40, 42, 44, 46) provided in the audio samples of the media signal, In this way the fragile watermark can be made to be very complex and still remain imperceptible to a user.
摘要翻译: 本发明涉及媒体信号中与脆弱水印(WM)有关的方法,装置,信号和记录介质。 根据本发明,在与媒体信号的音频样本中提供的掩埋数据信道(40,42,44,46)相关的编码中或与其相关的编码中提供了脆弱的水印。以这种方式,可以使脆弱的水印变得非常 复杂且仍然对用户不了解。
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公开(公告)号:US20060147047A1
公开(公告)日:2006-07-06
申请号:US10536243
申请日:2003-10-31
CPC分类号: G10L19/008 , G10L19/035
摘要: In the method of coding the audio signal, the values of first parameters (P1,1), which represent aspects of the audio signal at a first instant (ti), are calculated to obtain first calculated values (A1,i). The values of second parameters P2,i), which represent the aspects of the audio signal at a second, later, instant (t2), are calculated to obtain the second calculated values (A2,i). The number of the first parameters (P1,i) and the number of the second parameters (P2,i) differ. A subset (SUS2,i) of the second parameters (P2,i) is associated with a particular portion (SFRAi) of a frequency range (FR) of the audio signal This frequency range (FR) of the audio signal is preferably selected to cover all the frequencies present in the audio signal. The values (A2,i) of the subset (SUS2,i) of the second parameters (P2,i) are coded based on a difference of this subset (SUS2,i) and a subset (SUS1,i) of the first calculated value(s) (A1,i) associated with substantially this same particular portion (SFRAi) of the frequency range (FR). Thus the differentially coded values (7) of the second parameters (P2,i) are obtained by coding the difference of the values of second parameters (P2,i and first parameters (P1,i) which are associated with substantially the same frequency subrange (SFRAi). This allows to differential code the parameters (P1,I P2,i) even if the number of the parameters changes in time.
摘要翻译: 在对音频信号进行编码的方法中,计算表示第一时刻(ti)的音频信号的各方面的第一参数(P 1,1)的值,以获得第一计算值(A 1,i)。 计算表示第二,稍后时刻(t 2)的音频信号的方面的第二参数P 2,i)的值,以获得第二计算值(A 2,i)。 第一参数(P 1,i)和第二参数(P 2,i)的数量不同。 第二参数(P 2,i)的子集(SUS2,i)与音频信号的频率范围(FR)的特定部分(SFRAi)相关联。音频信号的频率范围(FR)优选为 被选择以覆盖音频信号中存在的所有频率。 基于该子集(SUS2,i)和子集(SUS 1,i)的差异对第二参数(P 2,i)的子集(SUS2,i)的值(A 2,i)进行编码 )与基本上与频率范围(FR)的相同特定部分(SFRAi)相关联的第一计算值(A 1,i)。 因此,通过对与第二参数(P 2,i)相关联的第二参数(P 2,i和第一参数(P 1,i))的值的差进行编码来获得第二参数(P 2,i)的差分编码值(7) 相同频率子范围(SFRAi),即使参数数量随时间变化,也可以对参数进行差分编码(P 1,IP 2,i)。
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公开(公告)号:US20060095147A1
公开(公告)日:2006-05-04
申请号:US10548848
申请日:2004-03-12
CPC分类号: G06F3/04847
摘要: The invention relates to a method of enabling a user to adjust at least a first and a second control parameter for controlling an electronic system. The method comprises the step of displaying a coordinate system on a display screen, a first coordinate of said coordinate system representing a range of values of the first control parameter, and a second coordinate of said coordinate system representing a range of values of the second control parameter, the step of visually indicating a position in said coordinate system corresponding to a currently selected combination of values of the first and the second control parameter, and the step of enabling the user to select a new combination of values of the first and the second control parameter by indicating a position within said coordinate system.
摘要翻译: 本发明涉及一种使用户能够调整用于控制电子系统的至少第一和第二控制参数的方法。 该方法包括以下步骤:在显示屏幕上显示坐标系,所述坐标系的第一坐标表示第一控制参数的值的范围,所述坐标系的第二坐标表示第二控制的值的范围 参数,可视地指示所述坐标系中对应于当前选择的第一和第二控制参数的组合的位置的步骤,以及使得用户能够选择第一和第二控制参数的值的新组合的步骤 通过指示所述坐标系中的位置来控制参数。
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公开(公告)号:US20070112559A1
公开(公告)日:2007-05-17
申请号:US10552772
申请日:2004-04-14
IPC分类号: G10L19/02
CPC分类号: H04S3/008 , H04S2420/03
摘要: Synthesizing an output audio signal is provided on the basis of an input audio signal, the input audio signal comprising a plurality of input sub-band signals, wherein at least one input sub-band signal is transformed (T) from the sub-band domain to the frequency domain to obtain at least one respective transformed signal, wherein the at least one input sub-band signal is delayed and transformed (D, T) to obtain at least one respective transformed delayed signal, wherein at least two processed signals are derived from the at least one transformed signal and the at least one transformed delayed signal, wherein the processed signals are inverse transformed (T−1) from the frequency domain to the sub-band domain to obtain respective processed sub-band signals, and wherein the output audio signal is synthesized from the processed sub-band signals.
摘要翻译: 基于输入音频信号提供输出音频信号的合成,所述输入音频信号包括多个输入子带信号,其中至少一个输入子带信号从子带域变换(T) 到所述频域以获得至少一个相应的变换信号,其中所述至少一个输入子带信号被延迟和变换(D,T)以获得至少一个相应的变换延迟信号,其中导出至少两个处理的信号 从所述至少一个变换信号和所述至少一个经变换的延迟信号,其中所述经处理的信号从所述频域到所述子带域被逆变换(T SUP),以获得相应的处理子 带信号,并且其中从所处理的子带信号合成输出音频信号。
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5.
公开(公告)号:US20050259819A1
公开(公告)日:2005-11-24
申请号:US10518264
申请日:2003-04-12
CPC分类号: H04N1/32101 , G10L25/48 , H04N19/467 , H04N19/60 , H04N19/63 , H04N2201/3236
摘要: Method and apparatus for generating a hash signal representative of a multimedia signal are described. The method includes receiving a bit-stream comprising a compressed multimedia signal, selectively reading from the bit-stream predetermined parameters, and deriving a hash function from the parameters.
摘要翻译: 描述了用于生成表示多媒体信号的散列信号的方法和装置。 该方法包括接收包括压缩多媒体信号的比特流,从比特流预定参数中有选择地读取,以及从参数中导出哈希函数。
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