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1.发明授权公开(公告)号：US08966521B2
公开(公告)日：2015-02-24
申请号：US13827943
申请日：2013-03-14
CPC分类号： H04N21/6587 , G06Q30/00 , G06Q30/0241 , H04N21/4122 , H04N21/41407 , H04N21/42204 , H04N21/435 , H04N21/4367 , H04N21/812
摘要： Methods and apparatus to present supplemental media on a second screen are disclosed. An example method includes obtaining, at a digital media device, media identifying data from audio data of a portion of first media being presented via the digital media device; determining that the portion of the first media is an advertisement based on the media identifying data; detecting, at the digital media device, a command to cause the digital media device to skip the portion of the first media; and providing an indication to a second device in response to detecting the command, the indication to cause the second device to present second media.
摘要翻译： 公开了在第二屏幕上呈现补充介质的方法和装置。 示例性方法包括在数字媒体设备处获取从经由数字媒体设备呈现的第一媒体的一部分的音频数据识别数据的媒体; 基于所述媒体识别数据确定所述第一媒体的所述部分是广告; 在所述数字媒体设备处检测使所述数字媒体设备跳过所述第一媒体的所述部分的命令; 以及响应于检测到所述命令向第二设备提供指示，以使得所述第二设备呈现第二媒体的指示。
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公开(公告)号：US08457972B2
公开(公告)日：2013-06-04
申请号：US13619023
申请日：2012-09-14
摘要： Methods and apparatus for characterizing media are described. A disclosed example apparatus includes a transformer, a decision metric processor, a signature determiner, and a processor to implement the transformer, the decision metric processor, and/or the signature determiner. The example transformer is to convert at least a portion of a block of audio into a frequency domain representation including a plurality of frequency components. The example decision metric processor is to: define a band of the frequency components; determine a difference in energy between a first convolution of a first complex vector with a first group of frequency bins in the band and a second convolution of a second complex vector with a second group of frequency bins in the band; and determine a decision metric for the band based on the difference. The example signature determiner is to determine a signature based on a value of the decision metric.
摘要翻译： 描述用于表征介质的方法和装置。 所公开的示例性设备包括变压器，决策度量处理器，签名确定器和用于实现变压器的处理器，决策度量处理器和/或签名确定器。 示例性变压器是将音频块的至少一部分转换为包括多个频率分量的频域表示。 示例决策度量处理器是：定义频率分量的频带; 确定第一复矢量与频带中的第一组频率仓的第一卷积之间的能量差和第二复矢量与频带中的第二组频率仓的第二卷积; 并且基于该差异来确定所述频带的决策度量。 示例性签名确定器是基于决策度量的值来确定签名。
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3.发明授权Methods and apparatus to perform audio watermarking and watermark detection and extraction 有权执行音频水印和水印检测和提取的方法和装置公开(公告)号：US08359205B2
公开(公告)日：2013-01-22
申请号：US12551220
申请日：2009-08-31
IPC分类号： G10L19/00
CPC分类号： G06F17/30743 , G11B20/10 , H04H20/31 , H04H60/37 , H04H60/58 , H04H2201/50
摘要： Methods and apparatus to audio watermarking and watermark detection and extracted are described herein. An example method includes receiving a media content signal, sampling the media content signal to generate samples, storing the samples in a buffer, determining a first sequence of samples in the buffer, determining a second sequence of samples in the buffer, wherein the second sequence of samples is of substantially equal length as the first sequence of samples, calculating an average of the first sequence of samples and the second sequence of samples to generate an average sequence of samples, extracting an identifier from the average sequence of samples, and storing the identifier in a tangible memory.
摘要翻译： 本文描述了音频水印和水印检测和提取的方法和装置。 示例性方法包括：接收媒体内容信号，对媒体内容信号进行采样以产生样本，将样本存储在缓冲器中，确定缓冲器中的第一采样序列，确定缓冲器中的第二采样序列，其中第二序列 的样本具有与第一样本序列基本相同的长度，计算第一样本序列的平均值和第二样本序列以生成平均样本序列，从平均样本序列中提取标识符，并存储 标识符在有形存储器中。
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公开(公告)号：US20120071995A1
公开(公告)日：2012-03-22
申请号：US13250663
申请日：2011-09-30
IPC分类号： G06F17/00
摘要： Methods and apparatus for characterizing media are described. An example apparatus includes a transformer to convert at least a portion of a block of audio into a frequency domain representation including a plurality of frequency components; a decision metric processor to: define a band of frequency components having real and imaginary spectral components, define a plurality of frequency bins within the band, determine respective difference functions for each of the frequency bins using a product of the real and imaginary spectral components of a corresponding group of the frequency bins, the corresponding group for a first one of the frequency bins including at least the first one of the frequency bins and a second one of the frequency bins selected based on the first frequency bin, and determine a decision metric by summing the difference functions; and a signature determiner to determine a signature based on the decision metric.
摘要翻译： 描述用于表征介质的方法和装置。 示例性装置包括：变换器，用于将音频块的至少一部分转换成包括多个频率分量的频域表示; 决策度量处理器，用于：定义具有实数和虚数谱分量的频率分量的频带，在所述频带内定义多个频率仓，使用所述频域的实数和虚谱分量的乘积确定每个所述频率仓的相应差函数， 相应的频率仓组，用于包括频率仓中的至少第一频率仓的第一个频率仓的相应组，以及基于第一频率仓选择的频率仓中的第二个，并且确定一个决定度量 通过总结差异函数; 以及签名确定器，用于基于所述决策度量来确定签名。
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公开(公告)号：US20080215315A1
公开(公告)日：2008-09-04
申请号：US12034489
申请日：2008-02-20
IPC分类号： G10L21/00
摘要： Methods and apparatus for characterizing media are described. In one example, a method of characterizing media includes capturing a block of audio; converting at least a portion of the block of audio into a frequency domain representation including a plurality of complex-valued frequency components; defining a band of complex-valued frequency components for consideration; determining a decision metric using the band of complex-valued frequency components; and determining a signature bit based on a value of the decision metric. Other examples are shown and described.
摘要翻译： 描述用于表征介质的方法和装置。 在一个示例中，表征媒体的方法包括捕获音频块; 将所述音频块的至少一部分转换成包括多个复值频率分量的频域表示; 定义复频率频率分量的频带以供考虑; 使用复值频率分量的频带来确定决策度量; 以及基于所述决策度量的值来确定签名比特。 示出和描述其他示例。
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6.发明授权公开(公告)号：US09368123B2
公开(公告)日：2016-06-14
申请号：US13653001
申请日：2012-10-16
IPC分类号： G10L19/018
CPC分类号： G10L19/018
摘要： Methods and apparatus to perform audio watermark detection and extraction are disclosed. An example method includes sampling a media signal to generate samples, wherein the media signal includes an embedded message, determining a first symbol value for a first block of the samples, determining a second symbol value for a second block of the samples, and determining, using a processor, a resulting symbol value, representative of a part of the embedded message, based on the first symbol value and the second symbol value for the first block of samples and the second block of samples, wherein the first block and the second block partially overlap.
摘要翻译： 公开了执行音频水印检测和提取的方法和装置。 示例性方法包括对媒体信号进行采样以生成样本，其中媒体信号包括嵌入消息，确定样本的第一块的第一符号值，确定样本的第二块的第二符号值， 基于所述第一采样块和所述第二采样块的所述第一符号值和所述第二符号值，使用处理器生成代表所述嵌入式消息的一部分的结果符号值，其中所述第一块和所述第二块 部分重叠。
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7.发明申请公开(公告)号：US20140105448A1
公开(公告)日：2014-04-17
申请号：US13653001
申请日：2012-10-16
IPC分类号： G06K9/00
CPC分类号： G10L19/018
摘要： Methods and apparatus to perform audio watermark detection and extraction are disclosed. An example method includes sampling a media signal to generate samples, wherein the media signal includes an embedded message, determining a first symbol value for a first block of the samples, determining a second symbol value for a second block of the samples, and determining, using a processor, a resulting symbol value, representative of a part of the embedded message, based on the first symbol value and the second symbol value for the first block of samples and the second block of samples, wherein the first block and the second block partially overlap.
摘要翻译： 公开了执行音频水印检测和提取的方法和装置。 示例性方法包括对媒体信号进行采样以生成样本，其中媒体信号包括嵌入消息，确定样本的第一块的第一符号值，确定样本的第二块的第二符号值， 基于所述第一采样块和所述第二采样块的所述第一符号值和所述第二符号值，使用处理器生成代表所述嵌入式消息的一部分的结果符号值，其中所述第一块和所述第二块 部分重叠。
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8.发明授权Methods and apparatus for performing variable black length watermarking of media 有权用于执行媒体可变块长度水印的方法和装置公开(公告)号：US08457951B2
公开(公告)日：2013-06-04
申请号：US12361991
申请日：2009-01-29
CPC分类号： G10L19/018
摘要： Methods, apparatus, and articles of manufacture are disclosed in which auxiliary information is added to or removed from an audio signal. In one example, the information may be added to the audio signal using at least two frequencies that are dictated by two different frequency transformation block sizes, such that the two frequencies are not fully visible when an incorrect block size is used to perform a frequency transformation. Additionally, in another example, a decoder may compensate for time and frequency affects caused by removing old samples and adding new samples, which, in one example, alleviates the need to perform repeated frequency transformation using different frequency transformation block sizes. Other examples are described.
摘要翻译： 公开了将辅助信息添加到音频信号或从音频信号中移除的方法，装置和制品。 在一个示例中，可以使用由两个不同的频率变换块大小指定的至少两个频率将信息添加到音频信号，使得当使用不正确的块大小来执行频率变换时，两个频率不完全可见 。 此外，在另一个示例中，解码器可以补偿由去除旧样本和添加新样本引起的时间和频率影响，在一个示例中，这样减少了使用不同频率变换块大小进行重复频率变换的需要。 描述其他示例。
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公开(公告)号：US20130013324A1
公开(公告)日：2013-01-10
申请号：US13619023
申请日：2012-09-14
IPC分类号： G10L19/00
摘要： Methods and apparatus for characterizing media are described. A disclosed example apparatus includes a transformer, a decision metric processor, a signature determiner, and a processor to implement the transformer, the decision metric processor, and/or the signature determiner. The example transformer is to convert at least a portion of a block of audio into a frequency domain representation including a plurality of frequency components. The example decision metric processor is to: define a band of the frequency components; determine a difference in energy between a first convolution of a first complex vector with a first group of frequency bins in the band and a second convolution of a second complex vector with a second group of frequency bins in the band; and determine a decision metric for the band based on the difference. The example signature determiner is to determine a signature based on a value of the decision metric.
摘要翻译： 描述用于表征介质的方法和装置。 所公开的示例性设备包括变压器，决策度量处理器，签名确定器和用于实现变压器的处理器，决策度量处理器和/或签名确定器。 示例性变压器是将音频块的至少一部分转换为包括多个频率分量的频域表示。 示例决策度量处理器是：定义频率分量的频带; 确定第一复矢量与频带中的第一组频率仓的第一卷积之间的能量差和第二复矢量与频带中的第二组频率仓的第二卷积; 并且基于该差异来确定所述频带的决策度量。 示例性签名确定器是基于决策度量的值来确定签名。
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10.发明申请METHODS AND APPARATUS TO PERFORM AUDIO WATERMARKING AND WATERMARK DETECTION AND EXTRACTION 有权执行音频水印和水印检测和提取的方法和设备公开(公告)号：US20100106510A1
公开(公告)日：2010-04-29
申请号：US12551220
申请日：2009-08-31
CPC分类号： G06F17/30743 , G11B20/10 , H04H20/31 , H04H60/37 , H04H60/58 , H04H2201/50
摘要： Methods and apparatus to audio watermarking and watermark detection and extracted are described herein. An example method includes receiving a media content signal, sampling the media content signal to generate samples, storing the samples in a buffer, determining a first sequence of samples in the buffer, determining a second sequence of samples in the buffer, wherein the second sequence of samples is of substantially equal length as the first sequence of samples, calculating an average of the first sequence of samples and the second sequence of samples to generate an average sequence of samples, extracting an identifier from the average sequence of samples, and storing the identifier in a tangible memory.
摘要翻译： 本文描述了音频水印和水印检测和提取的方法和装置。 示例性方法包括：接收媒体内容信号，对媒体内容信号进行采样以产生样本，将样本存储在缓冲器中，确定缓冲器中的第一采样序列，确定缓冲器中的第二采样序列，其中第二序列 的样本具有与第一样本序列基本相同的长度，计算第一样本序列的平均值和第二样本序列以生成平均样本序列，从平均样本序列中提取标识符，并存储 标识符在有形存储器中。
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