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    Methods and apparatus to verify presentation of media content
    1.
    发明授权
    Methods and apparatus to verify presentation of media content 有权
    验证媒体内容呈现的方法和装置

    公开(公告)号：US09124769B2

    公开(公告)日：2015-09-01

    申请号：US12505966

    申请日：2009-07-20

    申请人： Venugopal Srinivasan ,  Arun Ramaswamy

    发明人： Venugopal Srinivasan ,  Arun Ramaswamy

    IPC分类号： H04N7/173 ,  H04N7/16 ,  H04H60/31 ,  H04N21/436

    CPC分类号： H04N21/44204 ,  G06F21/6245 ,  H04H60/31 ,  H04N7/163 ,  H04N21/42203 ,  H04N21/43615 ,  H04N21/4394 ,  H04N21/4396 ,  H04N21/44213 ,  H04N21/4667

    摘要： Example methods and apparatus to verify presentation of media content are disclosed. A disclosed example apparatus for use with a set-top box (STB) and a media presentation device includes an audio input interface to receive a first audio signal associated with a program selected by a user via the STB, a microphone to receive a free-field radiating second audio signal output by at least one of the media presentation device or an audio system associated with the media presentation device, a comparator to compare the second audio signal to the first audio signal to form an output, and an output interface to provide a value indicative of whether the program selected by the user via the STB is presented at the media presentation device.

    摘要翻译： 公开了用于验证媒体内容呈现的示例性方法和装置。 用于机顶盒（STB）和媒体呈现装置的公开的示例性装置包括：音频输入接口，用于接收与由用户经由STB选择的节目相关联的第一音频信号;麦克风， 由媒体呈现设备或与媒体呈现设备相关联的音频系统中的至少一个输出的第二音频信号，比较器，用于将第二音频信号与第一音频信号进行比较以形成输出;以及输出接口， 指示由用户经由STB选择的节目是否在媒体呈现设备处被呈现的值。

    METHODS AND APPARATUS FOR GENERATING SIGNATURES
    2.
    发明申请
    METHODS AND APPARATUS FOR GENERATING SIGNATURES 有权
    用于生成信号的方法和装置

    公开(公告)号：US20140137146A1

    公开(公告)日：2014-05-15

    申请号：US14074499

    申请日：2013-11-07

    申请人： Alexander Pavlovich Topchy ,  Arun Ramaswamy ,  Venugopal Srinivasan

    发明人： Alexander Pavlovich Topchy ,  Arun Ramaswamy ,  Venugopal Srinivasan

    IPC分类号： H04N21/8358 ,  H04N21/442

    CPC分类号： H04N21/8358 ,  G06F17/30743 ,  G10L25/48 ,  G11B27/28 ,  H04H60/37 ,  H04H60/58 ,  H04H60/66 ,  H04H2201/90 ,  H04N21/442

    摘要： Signaturing methods and apparatus as described. An example method includes applying a first function to a portion of digital data to produce a first windowed block, applying a second function different from the first function to the same portion of the digital data to produce a second windowed block, determining a first characteristic of a band of frequencies in the first windowed block, determining a second characteristic of the band of frequencies in the second windowed block, comparing the first characteristic to the second characteristic, and assigning a signature bit representative of the portion of the digital data based on the comparison of the first characteristic and the second characteristic.

    摘要翻译： 所述的标记方法和装置。 一个示例性方法包括将第一函数应用于数字数据的一部分以产生第一窗口化块，将与第一函数不同的第二函数应用于数字数据的相同部分以产生第二窗口块，确定第一特征 在第一窗口化块中的频带，确定第二窗口化块中的频带的第二特性，将第一特征与第二特性进行比较，以及基于该第一特征向量分配表示数字数据部分的签名位 第一特征与第二特征的比较。

    Data insertion apparatus and methods for use with compressed audio/video data
    4.
    发明授权
    Data insertion apparatus and methods for use with compressed audio/video data 有权
    用于压缩音频/视频数据的数据插入装置和方法

    公开(公告)号：US08600216B2

    公开(公告)日：2013-12-03

    申请号：US12942800

    申请日：2010-11-09

    申请人： Arun Ramaswamy ,  Venugopal Srinivasan

    发明人： Arun Ramaswamy ,  Venugopal Srinivasan

    IPC分类号： H04N9/82

    CPC分类号： H04N21/44 ,  H04N19/48 ,  H04N21/235 ,  H04N21/23614 ,  H04N21/2362 ,  H04N21/2365 ,  H04N21/23892 ,  H04N21/25891 ,  H04N21/41407 ,  H04N21/4345 ,  H04N21/4347 ,  H04N21/4348 ,  H04N21/435 ,  H04N21/4408 ,  H04N21/44204 ,  H04N21/8126 ,  H04N21/8352 ,  H04N21/8358 ,  H04N21/854 ,  H04N21/8586

    摘要： Methods, apparatus, and articles of manufacture for performing data insertion in compressed audio/video data streams are disclosed. An example method disclosed herein to insert audience measurement data in a compressed media data stream comprises rearranging data in frames of the compressed media data stream to form contiguous sequences of skip bytes at respective locations in the frames of the compressed media data stream, the audience measurement data to be inserted in the compressed media data stream at the locations of the contiguous sequences of skip bytes, the contiguous sequences of skip bytes having respective lengths, and inserting different types of audience measurement data at the locations of the contiguous sequences of skip bytes in two different frames of the compressed media data stream based on the respective lengths of the contiguous sequences of skip bytes in the two different frames of the compressed media data stream.

    摘要翻译： 公开了在压缩音频/视频数据流中执行数据插入的方法，装置和制品。 本文公开的将受众测量数据插入到压缩媒体数据流中的示例性方法包括在压缩媒体数据流的帧中重新排列数据，以在压缩媒体数据流的帧中的相应位置处形成连续的跳过字节序列，观众测量 要在连续的跳过字节序列的位置处插入压缩媒体数据流中的数据，具有相应长度的连续的跳过字节序列，以及将不同类型的观众测量数据插入到连续的跳过字节序列的位置 基于压缩媒体数据流的两个不同帧中的连续的跳过字节序列的相应长度，压缩媒体数据流的两个不同帧。

    METHODS AND APPARATUS TO PERFORM AUDIO WATERMARKING AND WATERMARK DETECTION AND EXTRACTION
    8.
    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：US20090259325A1

    公开(公告)日：2009-10-15

    申请号：US12249619

    申请日：2008-10-10

    申请人： Alexander Pavlovich Topchy ,  Arun Ramaswamy ,  Venugopal Srinivasan

    发明人： Alexander Pavlovich Topchy ,  Arun Ramaswamy ,  Venugopal Srinivasan

    IPC分类号： G06F17/00

    CPC分类号： G10L19/018 ,  G10L19/022 ,  G10L19/06 ,  G10L25/18 ,  H04H20/31 ,  H04H60/31 ,  H04H2201/50 ,  H04N19/467 ,  H04N21/23892 ,  H04N21/8358

    摘要： Encoding and decoding methods and apparatus as described. In one example, a method of embedding auxiliary information into an audio signal includes sampling the audio signal to create an audio block; receiving a code; determining frequency components that will be used to represent the code, wherein different sets of frequency components represent respectively different information and wherein one frequency component from each set of frequency components is located in a code band and there are multiple code bands and spacing between adjacent code bands is equal to or less than the spacing between adjacent frequency components of each code band; determining amplitudes of the frequency components that will be used to represent the information, wherein the amplitudes of the frequency components are determined by a masking ability of the audio block; synthesizing the frequency components that will be used to represent the information, wherein the frequency components are synthesized with the determined amplitudes; and combining the synthesized code frequency components with the audio block.

    摘要翻译： 编码和解码方法和装置如上所述。 在一个示例中，将辅助信息嵌入到音频信号中的方法包括对音频信号进行采样以创建音频块; 接收代码; 确定将用于表示代码的频率分量，其中不同组的频率分量分别表示不同的信息，并且其中来自每组频率分量的一个频率分量位于码带中，并且存在多个码带和相邻码之间的间隔 频带等于或小于每个码带的相邻频率分量之间的间隔; 确定将用于表示信息的频率分量的幅度，其中频率分量的幅度由音频块的掩蔽能力确定; 合成将用于表示信息的频率分量，其中以确定的振幅合成频率分量; 以及将合成的代码频率分量与音频块组合。

    Detecting a composition of an audience
    10.
    发明申请
    Detecting a composition of an audience 有权
    检测观众的作品

    公开(公告)号：US20060200841A1

    公开(公告)日：2006-09-07

    申请号：US10538692

    申请日：2002-12-11

    申请人： Arun Ramaswamy ,  Daniel Nelson ,  Venugopal Srinivasan

    发明人： Arun Ramaswamy ,  Daniel Nelson ,  Venugopal Srinivasan

    IPC分类号： H04N7/16

    CPC分类号： G06K9/00362 ,  H04H60/33 ,  H04H60/43 ,  H04H60/45 ,  H04N7/17309 ,  H04N21/258 ,  H04N21/42201 ,  H04N21/4223 ,  H04N21/433 ,  H04N21/4335 ,  H04N21/44008 ,  H04N21/44218 ,  H04N21/44222

    摘要： Methods and apparatus for detecting a composition of an audience of an information presenting device are disclosed. One disclosed method captures images (18) of the audience, determines (20) a number of people within the images and prompts (24) the audience to identify its members if a change (22) in the number of people in the audience is visually detected. This disclosed method voids both under-sampling of the audience and excessive prompting of the audience by only requesting entry of identification data when an audience change occurs. Methods and apparatus to determine the number of persons in an image or series of images are also disclosed.

    摘要翻译： 公开了一种用于检测信息呈现装置的观众的组成的方法和装置。 一种公开的方法捕获观众的图像（18），确定（20）图像内的多个人，并提示（24）观众以识别其成员，如果观众中的人数的变化（22）在视觉上 检测到。 这种披露的方法使观众的抽样不足，并且在观众变化发生时仅请求输入识别数据，从而过度提示观众。 还公开了确定图像或一系列图像中的人数的方法和装置。