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    • 9. 发明授权
    • Systems and methods for providing multiple video streams per audio stream
    • 用于每个音频流提供多个视频流的系统和方法
    • US08166503B1
    • 2012-04-24
    • US12212203
    • 2008-09-17
    • Jeremy C. RosenbergStuart H. Farber
    • Jeremy C. RosenbergStuart H. Farber
    • H04N5/445H04N7/173
    • H04N21/8106H04N21/234327H04N21/2362
    • A system and method for providing multiple video presentations per audio program. In one aspect, the method comprises (a) assigning a first packet identifier (PID) to a first elementary stream, wherein the first elementary stream comprises video packets corresponding to a high-definition video presentation; (b) assigning a second PID to a second elementary stream, wherein the second elementary stream comprises video packets corresponding to a standard-definition video presentation and the second PID is different than the first PID; (c) assigning a third PID to a third elementary stream, wherein the third elementary stream comprises audio packets corresponding to a selected audio recording, wherein the third PID is different than the second PID; and (d) (1) creating a program map table that includes the first PID, the second PID and the third PID or (2) creating (i) a first program map table that includes the first PID and the third PID and (ii) a second program map table that includes the second PID and the third PID. In this way, the method provides a high-definition and a standard-definition video presentation per a single audio program.
    • 一种用于每个音频节目提供多个视频呈现的系统和方法。 一方面,该方法包括:(a)将第一分组标识符(PID)分配给第一基本流,其中第一基本流包括对应于高清晰度视频呈现的视频分组; (b)向第二基本流分配第二PID,其中所述第二基本流包括对应于标准清晰度视频呈现的视频分组,并且所述第二PID不同于所述第一PID; (c)向第三基本流分配第三PID,其中所述第三基本流包括对应于所选择的音频记录的音频分组,其中所述第三PID不同于所述第二PID; 和(d)(1)创建包括第一PID,第二PID和第三PID的程序映射表,或(2)创建(i)包括第一PID和第三PID的第一程序映射表, )包括第二PID和第三PID的第二程序映射表。 以这种方式,该方法提供了每个单个音频节目的高清晰度和标准清晰度视频呈现。