System for adjusting a combination of control parameters
    2.
    发明申请
    System for adjusting a combination of control parameters 有权
    用于调整控制参数组合的系统

    公开(公告)号:US20060095147A1

    公开(公告)日:2006-05-04

    申请号:US10548848

    申请日:2004-03-12

    IPC分类号: G05B13/02 G05B19/18

    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。

    Fragile audio watermark related to a buried data channel
    3.
    发明申请
    Fragile audio watermark related to a buried data channel 审中-公开
    与隐藏数据通道相关的脆弱音频水印

    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

    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。

    Coding an audio signal
    4.
    发明申请
    Coding an audio signal 失效
    编码音频信号

    公开(公告)号:US20060147047A1

    公开(公告)日:2006-07-06

    申请号:US10536243

    申请日:2003-10-31

    IPC分类号: H04R5/00 H03G5/00

    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)。

    Multi-channel hierarchical audio coding with compact side information
    7.
    发明授权
    Multi-channel hierarchical audio coding with compact side information 有权
    具有紧凑侧面信息的多通道分层音频编码

    公开(公告)号:US07961890B2

    公开(公告)日:2011-06-14

    申请号:US11314711

    申请日:2005-12-21

    IPC分类号: H04R5/00

    摘要: A parametric representation of a multi-channel audio signal describes the spatial properties of the audio signal well with compact side information when a coherence information, describing the coherence between a first and a second channel, is derived within a hierarchical encoding process only for channel pairs including a first channel having only information of a left side with respect to a listening position and including a second channel having only information from a right side with respect to a listening position. As within the hierarchical process the multiple audio channels of the audio signal are downmixed iteratively into monophonic channels, one can pick the relevant parameters from an encoding step involving only channel pairs carrying the information needed to describe the spatial properties of the multi-channel audio signal.

    摘要翻译: 多通道音频信号的参数化表示利用紧凑的侧信息来描述音频信号的空间属性,当描述第一和第二信道之间的相干性的相干信息仅在信道对的分级编码处理中导出时 包括仅具有相对于收听位置的左侧的信息的第一频道,并且包括仅具有相对于收听位置的右侧的信息的第二频道。 如在分层处理中,音频信号的多个音频通道被迭代地下混合成单声道,可以从仅涉及携带描述多声道音频信号的空间属性所需的信息的信道对的编码步骤中选择相关参数 。

    Method and device for transcoding
    10.
    发明申请
    Method and device for transcoding 审中-公开
    用于转码的方法和设备

    公开(公告)号:US20070250308A1

    公开(公告)日:2007-10-25

    申请号:US11573919

    申请日:2005-08-08

    IPC分类号: G10L19/14

    CPC分类号: G10L19/173

    摘要: A method and device for transcoding a first audio or video signal represented in one compression format to a second audio or video signal represented in another compression format. The transcoding is performed by direct mapping symbols from the first signal format to symbols of the second signal format. The transcoding can be performed between different formats or between the same format but with different bitrates. Such formats may be MP3 or aac.

    摘要翻译: 一种用于将以一种压缩格式表示的第一音频或视频信号进行代码转换为以另一压缩格式表示的第二音频或视频信号的方法和装置。 通过将符号从第一信号格式直接映射到第二信号格式的符号来执行代码转换。 代码转换可以在不同格式之间进行,也可以在相同的格式之间进行,但是具有不同的比特率。 这样的格式可以是MP3或者aac。