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    • 2. 发明授权
    • System and method for synchronizing streaming content with enhancing content using pre-announced triggers
    • 使用预先宣布的触发器同步流内容与增强内容的系统和方法
    • US07577979B2
    • 2009-08-18
    • US11090258
    • 2005-03-25
    • David A. FeinleibIsaac A. Sheldon
    • David A. FeinleibIsaac A. Sheldon
    • H04N7/025H04N7/173G06F15/16
    • H04N21/454H04N7/088H04N7/163H04N21/4307H04N21/4316H04N21/4886H04N21/812
    • A client-server architecture synchronizes streaming content with enhancing content via pre-announced triggers. The architecture includes server-based components to generate announcements containing information specifying how and when to receive upcoming triggers that will be transmitted at a later time. The server transmits the announcements to a general broadcast or multicast IP address. Client-based components monitor the IP address to receive and filter the announcements. Selected announcements are stored in a guide database in correlation with the streaming content programs to indicate that the programs are interactive. When a user tunes to an interactive program, the client opens a container HTML page that contains controls to receive the streaming content program and to extract the announcements from the guide database. The latter control monitors the IP address at the times specified in the selected announcements to receive the triggers corresponding to the interactive program. The server delivers the triggers at times synchronized to the streaming content. When triggers arrive, the client control processes the triggers to coordinate presentation of the enhancing content with the streaming content program. The triggers may further be used to carry items that fill a ticker being displayed with the program.
    • 客户机 - 服务器架构通过预先宣布的触发器来同步流内容和增强内容。 该架构包括基于服务器的组件,用于生成通知,其中包含指定如何以及何时接收将在稍后发送的即将到来的触发器的信息。 服务器将通知发送到一般广播或组播IP地址。 基于客户端的组件监视IP地址以接收和过滤通知。 选择的公告存储在引导数据库中,与流式传输内容程序相关联,以指示程序是交互式的。 当用户调用交互式程序时,客户端将打开一个容器HTML页面,其中包含控件以接收流式传输内容程序,并从指南数据库中提取公告。 后者控制器在所选通知中指定的时间监视IP地址,以接收与交互式程序相对应的触发器。 服务器将时间同步到流媒体内容的触发器。 当触发器到达时,客户端控制处理触发器以协调通过流内容程序呈现增强内容。 触发器可以进一步用于携带填充与程序一起显示的报价单的物品。