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    • 27. 发明授权
    • Digital broadcast receiving device
    • 数字广播接收装置
    • US07146633B2
    • 2006-12-05
    • US09758829
    • 2001-01-11
    • Koichiro YamaguchiNaoya TakaoTakashi Kakiuchi
    • Koichiro YamaguchiNaoya TakaoTakashi Kakiuchi
    • H04N7/173
    • H04N21/4627H04N7/165H04N7/17318H04N21/2543H04N21/47211H04N21/8355H04N21/8545
    • A receiving unit 101 repeatedly receives a transport stream, and a specifying unit 102 specifies a purchase state. A restoring unit 103 generates a first audio-digital (AV) signal and interactive data, and an AV reproducing unit 105 generates a second AV signal. A combining unit 106 generates a data-AV combined signal by combining the generated second AV signal and a data signal generated from the interactive data. A data presentation restricting unit 115 outputs the interactive data and a purchase state signal. A control unit 107 receives an operation signal from an inputting unit 110 and outputs it to a data operation restricting unit 116. A data analyzing unit 104 analyzes a presentation element contained in the interactive data and generates video data, which is the data signal. A data judging unit 117 judges whether a currently-presented presentation element is included in the same group as a presentation element that is a link destination of the presented presentation element. When the purchase state is a viewing permitted state, the data operation restricting unit 116 outputs the operation signal. When the purchase state is a preview state or viewing prohibited state and when the above two presentation elements are included in the same group, the operation restricting unit 116 also outputs the operation signal.
    • 接收单元101重复地接收传输流,并且指定单元102指定购买状态。 恢复单元103生成第一音频数字(AV)信号和交互数据,并且AV再现单元105产生第二AV信号。 组合单元106通过组合所生成的第二AV信号和从交互数据生成的数据信号来生成数据AV组合信号。 数据呈现限制单元115输出交互数据和购买状态信号。 控制单元107从输入单元110接收操作信号并将其输出到数据操作限制单元116.数据分析单元104分析包含在交互式数据中的呈现元素,并生成作为数据信号的视频数据。 数据判断单元117判断当前呈现的呈现元素是否包括在与作为呈现的呈现元素的链接目的地的呈现元素相同的组中。 当购买状态是可视许可状态时,数据操作限制单元116输出操作信号。 当购买状态是预览状态或观看禁止状态时,并且当上述两个呈现元素被包括在同一组中时,操作限制单元116还输出操作信号。