METHODS AND APPARATUS TO MONITOR AUDIO/VISUAL CONTENT FROM VARIOUS SOURCES
    24.
    发明申请
    METHODS AND APPARATUS TO MONITOR AUDIO/VISUAL CONTENT FROM VARIOUS SOURCES 审中-公开
    监测来自不同来源的音频/视觉内容的方法和设备

    公开(公告)号:WO2006020560A2

    公开(公告)日:2006-02-23

    申请号:PCT/US2005/028106

    申请日:2005-08-09

    Inventor: RAMASWAMY, Arun

    Abstract: Methods and apparatus to monitor audio/visual content from various sources are disclosed. An example method to monitor media content provided by a selected one of a plurality of media content sources for presentation by an information presenting device disclosed herein comprises determining first information based on a video signal corresponding to the monitored media content, determining second information based on an audio signal corresponding to the monitored media content, identifying the selected one of the plurality of media content sources based on a first classification decision resulting from one of the first information and the second information and a second classification decision resulting from the other of the first information and the second information, and identifying the monitored media content based on identification information associated with at least one of the video signal or the audio signal.

    Abstract translation: 公开了从各种来源监视音频/视觉内容的方法和装置。 用于监视由多个媒体内容源中的所选择的媒体内容源提供的用于由本文公开的信息呈现设备呈现的媒体内容的示例性方法包括基于与所监视的媒体内容相对应的视频信号来确定第一信息,基于 与所监视的媒体内容相对应的音频信号,基于从第一信息和第二信息之一产生的第一分类决定,识别多个媒体内容源中的所选择的一个,以及由第一信息中的另一个产生的第二分类决定 和第二信息,并且基于与视频信号或音频信号中的至少一个相关联的识别信息来识别所监视的媒体内容。

    METHODS AND APPARATUS TO IDENTIFY A TUNED DIGITAL TELEVISION CHANNEL
    26.
    发明申请
    METHODS AND APPARATUS TO IDENTIFY A TUNED DIGITAL TELEVISION CHANNEL 审中-公开
    识别数字电视频道的方法和设备

    公开(公告)号:WO2005114880A1

    公开(公告)日:2005-12-01

    申请号:PCT/US2004/013472

    申请日:2004-04-30

    CPC classification number: H04N21/44222 H04N7/17309 H04N21/4263 H04N21/4345

    Abstract: Methods and apparatus to identify a tuned digital television channel are described herein (FIG. 1). In an example method, a tuned major channel is identified (510). Program identifiers (PIDs) associated with the tuned major channel are identified (520). Packets of minor channels associated with the tuned major channel from a multiplexed digital stream of major channels are extracted (530). At least one of the major channels includes minor channels. An audio stream from a digital audio output is extracted (540). Accordingly, a digital signature associated with the extracted audio stream is compared to digital signatures associated with the extracted packets of the minor channels associated with the tuned major channel to identify a tuned digital television channel (550).

    Abstract translation: 本文描述了用于识别调谐数字电视频道的方法和装置(图1)。 在示例性方法中,识别调谐主频道(510)。 识别与调谐主频道相关联的节目标识符(PID)(520)。 提取与主要信道的多路复用数字流相关联的与调谐主频道相关联的次要信道的分组(530)。 至少有一个主要频道包括次要频道。 提取来自数字音频输出的音频流(540)。 因此,将与提取的音频流相关联的数字签名与与提取的与调谐主频道相关联的次要频道的分组相关联的数字签名进行比较,以识别经调谐的数字电视频道(550)。

    METHODS AND APPARATUS TO DISTINGUISH A SIGNAL ORIGINATING FROM A LOCAL DEVICE FROM A BROADCAST SIGNAL
    28.
    发明申请
    METHODS AND APPARATUS TO DISTINGUISH A SIGNAL ORIGINATING FROM A LOCAL DEVICE FROM A BROADCAST SIGNAL 审中-公开
    从广播信号中识别来自本地设备的信号的方法和装置

    公开(公告)号:WO2005065159A2

    公开(公告)日:2005-07-21

    申请号:PCT/US2004041670

    申请日:2004-12-10

    Abstract: Methods and apparatus to distinguish a signal originating from a local device from a broadcast signal are disclosed. A disclosed system classifies a video component of an audio-video signal by analyzing a histogram of pixel data, analyzing a quality factor, and/or attempting to detect embedded data in the video component. The disclosed system also classifies an audio component of the audio-video signal by attempting to detect embedded audio data and/or analyzing waveform energy associated with the audio component. A source of the audio-video signal is determined based on the video classification and/or the audio classification.

    Abstract translation: 公开了将源自本地设备的信号与广播信号区分开的方法和装置。 所公开的系统通过分析像素数据的直方图,分析质量因子和/或尝试检测视频分量中的嵌入数据来对视频信号的视频分量进行分类。 所公开的系统还通过尝试检测嵌入音频数据和/或分析与音频分量相关联的波形能量来对音频 - 视频信号的音频分量进行分类。 基于视频分类和/或音频分类来确定音频 - 视频信号的源。

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