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1. 发明授权

US06763522B1 System and method for a digital television electronic program guide 失效
标题翻译：数字电视电子节目指南的系统和方法
公开(公告)号：US06763522B1
公开(公告)日：2004-07-13
申请号：US09107938
申请日：1998-06-30
申请人： Shigeharu Kondo , David S. Wang , Jesse Ellenbogen , Priscilla Man-San Chung
发明人： Shigeharu Kondo , David S. Wang , Jesse Ellenbogen , Priscilla Man-San Chung
IPC分类号： H04N5445
CPC分类号： H04N21/4345 , H04N5/4401 , H04N5/44543 , H04N5/44591 , H04N5/50 , H04N9/641 , H04N9/75 , H04N21/4263 , H04N21/4312 , H04N21/435 , H04N21/482 , H04N21/8133
摘要： A system and method for providing an electronic program guide for broadcasted digital television wherein the electronic program guide displays only currently broadcasting minor channels, and timely event and contextual information. The system of the present invention includes program code in a memory for causing a tuner/de-multiplexor subsystem to tune to a preselected major channel broadcast frequency and to provide thereby at least one transport stream comprising a plurality of associated digital data elementary streams. The elementary streams include minor channel audio and video, as well as program and system information tables (PSIT), all of which are associated by packet identifiers to provide a table hierarchy. The system of the present invention compares presently broadcasting minor channel and PSIT information with corresponding information in memory. If the presently broadcasting information is more contemporaneous than the stored information, the stored information is updated, or replaced, with the presently broadcasting information to enable display of only actively broadcasting minor channels and up-to-the-minute event and contextual information.
摘要翻译：一种用于提供用于广播的数字电视的电子节目指南的系统和方法，其中电子节目指南仅显示当前正在播放的次要频道，以及及时的事件和上下文信息。本发明的系统包括存储器中的程序代码，用于使调谐器/去多路复用器子系统调谐到预先选择的主频道广播频率，并由此提供包括多个相关联的数字数据基本流的至少一个传输流。基本流包括次要频道音频和视频，以及程序和系统信息表（PSIT），所有这些都由分组标识符相关联，以提供表格层次结构。本发明的系统将目前的广播次要信道和PSIT信息与存储器中的相应信息进行比较。如果当前的广播信息比存储的信息更为同时期，则存储的信息被更新或替换为当前的广播信息，以便仅显示主动地广播次要频道和最新的事件和上下文信息。

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