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    • 2. 发明授权
    • System and method for detecting closed captioning data in an internet protocol television system
    • 用于在互联网协议电视系统中检测隐藏字幕数据的系统和方法
    • US08159608B2
    • 2012-04-17
    • US12624108
    • 2009-11-23
    • Todd W. JonesDouglas MedinaFrank Mitchals
    • Todd W. JonesDouglas MedinaFrank Mitchals
    • H04N7/00H04N11/00H04N5/278
    • H04N5/44513H04N21/435H04N21/44008H04N21/4884
    • A closed caption detection system includes a video line selector that outputs a selected line of a video signal, a luminance detector that outputs a luminance level of the selected line, and an alarm that compares the luminance level with a threshold level and provides an alarm based on the result. A method of detecting closed captioning data includes selecting a television channel, decoding closed captioning in the channel, detecting a luminance level of a closed captioning line of the television signal, comparing the luminance level with a threshold level, waiting for a time if luminance level of the selected line is less than the threshold luminance level, and then re-detecting luminance level and re-comparing the luminance levels, then, if the luminance level is less than the threshold level, indicating the absence of closed captioning data.
    • 闭路字幕检测系统包括输出视频信号的所选行的视频行选择器,输出所选行的亮度级的亮度检测器和将亮度级与阈值级别进行比较的报警, 结果。 检测隐藏字幕数据的方法包括选择电视频道,解码频道中的隐藏字幕,检测电视信号的隐藏字幕行的亮度级别,将亮度级别与阈值级别进行比较,等待一段时间,如果亮度级别 所选择的行小于阈值亮度电平,然后重新检测亮度电平并重新比较亮度电平,则如果亮度电平小于阈值电平,则指示没有隐藏字幕数据。
    • 3. 发明申请
    • System and Method for Detecting Closed Captioning Data in an Internet Protocol Television System
    • 用于检测互联网协议电视系统中隐藏字幕数据的系统和方法
    • US20110122316A1
    • 2011-05-26
    • US12624108
    • 2009-11-23
    • Todd W. JonesDouglas MedinaFrank Mitchals
    • Todd W. JonesDouglas MedinaFrank Mitchals
    • H04N5/445
    • H04N5/44513H04N21/435H04N21/44008H04N21/4884
    • A closed caption detection system includes a video line selector that outputs a selected line of a video signal, a luminance detector that outputs a luminance level of the selected line, and an alarm that compares the luminance level with a threshold level and provides an alarm based on the result. A method of detecting closed captioning data includes selecting a television channel, decoding closed captioning in the channel, detecting a luminance level of a closed captioning line of the television signal, comparing the luminance level with a threshold level, waiting for a time if luminance level of the selected line is less than the threshold luminance level, and then re-detecting luminance level and re-comparing the luminance levels, then, if the luminance level is less than the threshold level, indicating the absence of closed captioning data.
    • 闭路字幕检测系统包括输出视频信号的所选行的视频行选择器,输出所选行的亮度级的亮度检测器和将亮度级与阈值级别进行比较的报警, 结果。 检测隐藏字幕数据的方法包括选择电视频道,解码频道中的隐藏字幕,检测电视信号的隐藏字幕行的亮度级别,将亮度级别与阈值级别进行比较,等待一段时间,如果亮度级别 所选择的行小于阈值亮度电平,然后重新检测亮度电平并重新比较亮度电平,则如果亮度电平小于阈值电平,则指示没有隐藏字幕数据。
    • 8. 发明授权
    • System and method to modify a metadata parameter
    • 修改元数据参数的系统和方法
    • US07755526B2
    • 2010-07-13
    • US12262742
    • 2008-10-31
    • Douglas MedinaLarry KennedyFrank Robert Coppa
    • Douglas MedinaLarry KennedyFrank Robert Coppa
    • H03M1/66
    • H03G7/007G11B27/034H03G3/3005H03G3/3089H04N21/2335H04N21/8106
    • A method includes receiving first encoded digital audio data including a metadata parameter having a first value. The first encoded digital audio data has a first dynamic range. The method includes receiving second encoded digital audio data including the metadata parameter having the first value. The second encoded digital audio data has a second dynamic range. The method also includes outputting first decoded digital audio data including the metadata parameter. The first decoded digital audio data corresponds to the first encoded digital audio data. The method also includes outputting second decoded digital audio data including a modified metadata parameter having a second value. The second decoded digital audio data corresponds to the second encoded digital audio data.
    • 一种方法包括接收包括具有第一值的元数据参数的第一编码数字音频数据。 第一编码数字音频数据具有第一动态范围。 该方法包括接收包括具有第一值的元数据参数的第二编码数字音频数据。 第二编码数字音频数据具有第二动态范围。 该方法还包括输出包括元数据参数的第一解码数字音频数据。 第一解码数字音频数据对应于第一编码数字音频数据。 该方法还包括输出包括具有第二值的经修改的元数据参数的第二解码数字音频数据。 第二解码数字音频数据对应于第二编码数字音频数据。