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    • 1. 发明申请
    • Apparatus and method for encoding an audio signal and apparatus and method for decoding an encoded audio signal
    • 用于对音频信号进行编码的装置和方法以及用于对经编码的音频信号进行解码的装置和方
    • US20060167683A1
    • 2006-07-27
    • US11317521
    • 2005-12-22
    • Holger HoerichMichael SchugMatthias Neusinger
    • Holger HoerichMichael SchugMatthias Neusinger
    • G10L19/00
    • G10L19/022G10L19/0212G10L19/24
    • When encoding an audio signal, the audio signal is first encoded with the first encoder to obtain a first encoder output signal. This first encoder output signal is written into a bit stream. It is further decoded by a decoder to provide a decoded audio signal. The decoded audio signal is compared with the original audio signal to obtain a residual signal. The residual signal is then encoded via a second encoder to provide a second encoder output signal which is also written into a bit stream. The first encoder has a first time or frequency resolution. The second encoder has a second time or frequency resolution. The first resolution differs from the second resolution, so that in a respective decoder, an audio signal with both a high time resolution as well as a high frequency resolution can be retrieved.
    • 当对音频信号进行编码时,首先用第一编码器对音频信号进行编码以获得第一编码器输出信号。 该第一编码器输出信号被写入位流。 由解码器进一步解码以提供解码的音频信号。 将解码的音频信号与原始音频信号进行比较以获得残留信号。 然后通过第二编码器对残差信号进行编码,以提供也被写入比特流的第二编码器输出信号。 第一个编码器具有第一次或频率分辨率。 第二编码器具有第二时间或频率分辨率。 第一分辨率与第二分辨率不同,因此在相应的解码器中,可以检索具有高时间分辨率以及高频分辨率的音频信号。
    • 2. 发明授权
    • Apparatus and method for encoding an audio signal and apparatus and method for decoding an encoded audio signal
    • 用于对音频信号进行编码的装置和方法以及用于对经编码的音频信号进行解码的装置和方
    • US07275031B2
    • 2007-09-25
    • US11317521
    • 2005-12-22
    • Holger HoerichMichael SchugMatthias Neusinger
    • Holger HoerichMichael SchugMatthias Neusinger
    • G10L19/00
    • G10L19/022G10L19/0212G10L19/24
    • When encoding an audio signal, the audio signal is first encoded with the first encoder to obtain a first encoder output signal. This first encoder output signal is written into a bit stream. It is further decoded by a decoder to provide a decoded audio signal. The decoded audio signal is compared with the original audio signal to obtain a residual signal. The residual signal is then encoded via a second encoder to provide a second encoder output signal which is also written into a bit stream. The first encoder has a first time or frequency resolution. The second encoder has a second time or frequency resolution. The first resolution differs from the second resolution, so that in a respective decoder, an audio signal with both a high time resolution as well as a high frequency resolution can be retrieved.
    • 当对音频信号进行编码时,首先用第一编码器对音频信号进行编码以获得第一编码器输出信号。 该第一编码器输出信号被写入位流。 由解码器进一步解码以提供解码的音频信号。 将解码的音频信号与原始音频信号进行比较以获得残留信号。 然后通过第二编码器对残差信号进行编码,以提供也被写入比特流的第二编码器输出信号。 第一个编码器具有第一次或频率分辨率。 第二编码器具有第二时间或频率分辨率。 第一分辨率与第二分辨率不同,因此在相应的解码器中,可以检索具有高时间分辨率以及高频分辨率的音频信号。
    • 9. 发明授权
    • Apparatus and method for determining a quantizer step size
    • 用于确定量化器步长的装置和方法
    • US08756056B2
    • 2014-06-17
    • US12496880
    • 2009-07-02
    • Bernhard GrillMichael SchugBodo TeichmannNikolaus Rettelbach
    • Bernhard GrillMichael SchugBodo TeichmannNikolaus Rettelbach
    • G10L19/032G10L19/002
    • G10L19/032G10L2019/0005
    • For determining a quantizer step size for quantizing a signal including audio or video information, a first quantizer step size as well as an interference threshold are provided. Then, the actual interference introduced by the first quantizer step size is determined and compared with the interference threshold. Despite the fact that the comparison reveals that the actually introduced interference exceeds the threshold, a second, coarser quantizer step size is nevertheless used, which will then be used for quantization if it turns out that the interference introduced by the coarser, second quantizer step size falls below the threshold or falls below the interference introduced by the first quantizer step size. Thus, the quantization interference is reduced while the quantization is coarsened and, thus, the compression gain is increased.
    • 为了确定用于量化包括音频或视频信息的信号的量化器步长,提供第一量化器步长以及干扰阈值。 然后,确定由第一量化器步长引入的实际干扰并将其与干扰阈值进行比较。 尽管比较显示实际引入的干扰超过阈值,但是仍然使用第二较粗略的量化器步长,然后将其用于量化,如果证明由较粗的第二量化器步长引入的干扰 低于阈值或低于由第一量化器步长引入的干扰。 因此,量化干扰减小,而量化粗大,因此压缩增益增加。
    • 10. 发明申请
    • SYSTEM FOR COMBINING LOUDNESS MEASUREMENTS IN A SINGLE PLAYBACK MODE
    • 用于在单个回放模式中组合舒适度测量的系统
    • US20120328115A1
    • 2012-12-27
    • US13581453
    • 2011-03-07
    • Martin WoltersMichael SchugHarald MundtJeffrey Riedmiller
    • Martin WoltersMichael SchugHarald MundtJeffrey Riedmiller
    • H03G7/00
    • H03G9/00H03G9/005H03G9/14
    • The present document relates to processing of multimedia data, notably the encoding, the transmission, the decoding and the rendering of multimedia data, e.g. audio files or bitstreams. In particular, the present document relates to the implementation of loudness control in multimedia players. A method for providing loudness related data to a media player is described. The method comprises the steps of providing a first loudness related value associated with an audio signal; wherein the first loudness related value has been determined according to a first procedure; of converting the first loudness related value into a second loudness related value using a reversible relation; wherein the second loudness related value is associated with a second procedure for determining loudness related values; of storing the second loudness related value in metadata associated with the audio signal; and of providing the metadata to the media player.
    • 本文件涉及多媒体数据的处理,特别是多媒体数据的编码,传输,解码和呈现,例如, 音频文件或比特流。 特别地,本文件涉及多媒体播放器中的响度控制的实现。 描述了向媒体播放器提供响度相关数据的方法。 该方法包括以下步骤:提供与音频信号相关联的第一响度相关值; 其中所述第一响度相关值已经根据第一过程确定; 使用可逆关系将第一响度相关值转换为第二响度相关值; 其中所述第二响度相关值与用于确定响度相关值的第二过程相关联; 将第二响度相关值存储在与音频信号相关联的元数据中; 并向媒体播放器提供元数据。