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    • 1. 发明授权
    • Modulation of a video signal with an impairment signal to increase the video signal masked threshold
    • 利用损伤信号调制视频信号,增加视频信号屏蔽阈值
    • US07302162B2
    • 2007-11-27
    • US10219891
    • 2002-08-14
    • Richard J. Beaton
    • Richard J. Beaton
    • H04N5/91H04N5/00H04N7/01H04N7/167G09C5/00
    • H04N5/913H04N2005/91357H04N2005/91392
    • An impairment signal is introduced into an original visual signal, either electronically or optically, that is not noticeable in a display of the original visual signal but is noticeable in a copy made of the display by a camcorder or other camera, thereby discouraging the unauthorized recording of such displays. One application is to protect commercial movies against being copied in a theatre by a camcorder and distributed. In one form, the added impairment signal includes alternate transparent and dark regions moving across the screen or other display device. The degree of opacity of the dark regions and their speed of movement across the display are selected to make them unnoticeable in the theatre but highly noticeable in a camcorder copy of the movie that is made at a lower frame rate than that at which the movie is displayed.
    • 将损伤信号以电子或光学方式引入到原始视觉信号的显示中不明显的原始视觉信号,但是在由摄像机或其他相机显示的副本中是显而易见的,从而阻止未经授权的记录 的这样的显示器。 一种应用是保护商业电影不被摄像机复制到剧院并分发。 在一种形式中,附加的损伤信号包括在屏幕或其他显示装置上移动的交替的透明和暗区域。 选择黑暗区域的不透明度及其在显示器上的移动速度使其在剧院中不明显,但是在以比电影的帧速率低的帧速率制成的电影的摄像机副本中非常显着 显示。
    • 4. 发明申请
    • AUDIO DEPTH DYNAMIC RANGE ENHANCEMENT
    • 音频深度动态范围增强
    • US20140270184A1
    • 2014-09-18
    • US13834743
    • 2013-03-15
    • Richard J. BeatonEdward Stein
    • Richard J. BeatonEdward Stein
    • H04S7/00
    • H04S7/307G10H2210/281H04R3/12H04R5/04H04S3/00H04S3/004H04S7/00H04S7/305H04S2420/01
    • An audio depth dynamic range enhancement system and method for enhancing the dynamic range of depth in audio sound systems as perceived by a human listener. Embodiments of the system and method process an input audio signal by applying a gain function to at least one of a plurality of sub-signals of the audio signal having different values of a spatial depth parameter. The sub-signals are combined to produce a reconstructed audio signal carrying modified audio information. The reconstructed audio signal is output from the system and method for reproduction by the audio sound system. The gain function alters the gain of the at least one of the plurality of sub-signals such that the reconstructed audio signal, when reproduced by the audio sound system, results in modified depth dynamic range of the audio sound system with respect to the spatial depth parameter.
    • 一种音频深度动态范围增强系统和方法,用于增强由人类听觉所感知的音频声音系统中的深度的动态范围。 该系统和方法的实施例通过对具有不同的空间深度参数值的音频信号的多个子信号中的至少一个应用增益函数来处理输入音频信号。 子信号被组合以产生承载修改的音频信息的重构音频信号。 重构的音频信号从系统输出,并且由音频声音系统再现的方法。 增益函数改变多个子信号中的至少一个子信号的增益,使得重建音频信号在由音频声音系统再现时导致音频声音系统相对于空间深度的修改的深度动态范围 参数。
    • 5. 发明授权
    • Scalable compressed audio bit stream and codec using a hierarchical filterbank and multichannel joint coding
    • 可分级压缩音频比特流和编解码器使用分层滤波器组和多通道联合编码
    • US07548853B2
    • 2009-06-16
    • US11452001
    • 2006-06-12
    • Dmitry V. ShmunkRichard J. Beaton
    • Dmitry V. ShmunkRichard J. Beaton
    • G10L19/00
    • G10L19/0204G10L19/0212G10L19/022G10L19/035G10L19/24G10L25/18
    • A method for compressing audio input signals to form a master bit stream that can be scaled to form a scaled bit stream having an arbitrarily prescribed data rate. A hierarchical filterbank decomposes the input signal into a multi-resolution time/frequency representation from which the encoder can efficiently extract both tonal and residual components. The components are ranked and then quantized with reference to the same masking function or different psychoacoustic criteria. The selected tonal components are suitably encoded using differential coding extended to multichannel audio. The time-sample and scale factor components that make up the residual components are encoded using joint channel coding (JCC) extended to multichannel audio. A decoder uses an inverse hierarchical filterbank to reconstruct the audio signals from the tonal and residual components in the scaled bit stream.
    • 一种用于压缩音频输入信号以形成可被缩放以形成具有任意规定数据速率的缩放比特流的主比特流的方法。 分级滤波器组将输入信号分解为多分辨率时间/频率表示,编码器可以从该分辨率时间/频率表示中有效地提取色调和残差分量。 参考相同的掩蔽函数或不同的心理声学标准对这些分量进行排序和量化。 使用扩展到多声道音频的差分编码适当地编码所选择的音调分量。 使用扩展到多声道音频的联合信道编码(JCC)对组成残差分量的时间采样和比例因子分量进行编码。 解码器使用逆分层滤波器组来重构来自缩放比特流中的音调和残差分量的音频信号。
    • 6. 发明授权
    • Modular scalable compressed audio data stream
    • 模块化可缩放压缩音频数据流
    • US07333929B1
    • 2008-02-19
    • US11296072
    • 2005-12-06
    • Dmitri V. ChmounkRichard J. BeatonDarrell P. KlotzbachPaul R. Goldberg
    • Dmitri V. ChmounkRichard J. BeatonDarrell P. KlotzbachPaul R. Goldberg
    • G10L11/00
    • G10L19/24
    • Methods and apparatus are provided for the creation and utilization of unique compressed data stream compositions, structures and formats which allow for the alteration of the data stream's data rate without first decoding the data stream back to its uncompressed form and then re-encoding the resulting uncompressed data at a different data rate. Such methods and apparatus perform this data rate alteration, known as scaling, such that optimal quality is maintained at each scaled data rate, while performing said scaling with low computational complexity. In addition, the present invention provides for data rate alteration in small increments. A unique application for the disclosed bit rate scaling method and apparatus is also described.
    • 提供了用于创建和利用独特的压缩数据流组合,结构和格式的方法和装置,其允许改变数据流的数据速率,而无需首先将数据流解码为其未压缩形式,然后重新编码所得到的未压缩 不同数据速率的数据。 这样的方法和装置执行称为缩放的数据速率改变,使得以每个缩放的数据速率保持最佳质量,同时以低计算复杂度执行所述缩放。 此外,本发明以小增量提供数据速率改变。 还描述了所公开的比特率缩放方法和装置的独特应用。