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热词
    • 3. 发明授权
    • System of transmitting an interactive TV signal
    • 发送交互式电视信号的系统
    • US5448568A
    • 1995-09-05
    • US234139
    • 1994-04-28
    • Alain DelpuchJean-Rene Menand
    • Alain DelpuchJean-Rene Menand
    • H04N21/235H04N21/236H04N21/2368H04N21/434H04N21/435H04N21/81H04J3/24H04B1/66H04N7/52
    • H04N21/4351H04N21/235H04N21/23614H04N21/2368H04N21/4341H04N21/4348H04N21/435H04N21/8166
    • Apparatus and a method for formatting executable codes and data, defining interactive applications, with video and audio program material, for reliable and convenient access includes compressing (18, 21) audio and video programs according to a protocol such as MPEG. The compressed audio and video (A/V) programs are formed (19, 22) into transport packets. Interactive application programs associated with A/V programs are compiled (10) into functional modules, condensed and formed into transport packets. A module may be executable software or data. Further modules designated "Signal modules", are generated to condition respective receivers to suspend or resume execution of an interactive application. Video packets, audio packets and application packets are time division multiplexed (16) for transmission. Signal modules are multiplexed in the packet stream to appropriately reprogram respective receivers on the occurrence of such changes in received signal components.
    • 用于格式化可执行代码和数据的装置和方法,用视频和音频程序材料定义交互式应用程序,用于可靠和方便的访问包括根据诸如MPEG的协议来压缩(18,21)音频和视频节目。 将压缩的音频和视频(A / V)节目形成(19,22)到传输分组中。 与A / V程序相关的交互应用程序被编译(10)到功能模块中,并且被压缩并形成传输分组。 模块可以是可执行软件或数据。 生成指定为“信号模块”的进一步的模块,以使各个接收器能够暂停或恢复交互应用的执行。 视频分组,音频分组和应用分组被时分复用(16)用于传输。 在分组流中复用信号模块,以便在接收信号分量发生这种变化的情况下对各个接收机进行适当重新编程。