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    • 3. 发明授权
    • System and method for dynamic electronic program guide data downloads
    • 动态电子节目指南数据下载的系统和方法
    • US08910211B1
    • 2014-12-09
    • US13566438
    • 2012-08-03
    • Armando P. Stettner
    • Armando P. Stettner
    • H04N5/445
    • H04N5/44543H04N21/4334H04N21/4583H04N21/47214H04N21/4722H04N21/4821H04N2005/44556
    • Set top boxes (STBs) query a source of electronic program guide (EPG) data to request only the EPG data that it needs. Thus, instead of downloading the entire set of EPG data, the STBs query the source for only a limited amount of EPG data, such as data for the next 2-3 hours of programming. STBs can dynamically request additional EPG data if it needs to do so while a user is perusing the EPG, such as when the user requests additional EPG data that may not have been previously downloaded. Updates and corrections to pieces of EPG data can be efficiently made and sent to the STB, when that EPG data is needed, rather than being sent only during regularly scheduled times along with the entire set of EPG data.
    • 机顶盒(STB)查询电子节目指南(EPG)数据源,仅请求所需的EPG数据。 因此,STB不是下载整套EPG数据,而是仅在有限量的EPG数据(例如下一个2-3小时编程的数据)中查询源。 如果用户在使用EPG时需要这样做,则STB可以动态地请求附加的EPG数据,例如当用户请求可能未被先前下载的附加EPG数据时。 当需要EPG数据时,可以有效地对EPG数据进行更新和更正,并将其发送到STB,而不是仅在定期安排的时间内与整套EPG数据一起发送。