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1. 发明申请

WO0056066A8 SYSTEMS AND METHODS FOR ELECTRONIC PROGRAM GUIDE DATA SERVICES 审中-公开
标题翻译：电子计划指南数据服务的系统和方法
公开(公告)号：WO0056066A8
公开(公告)日：2001-05-25
申请号：PCT/US0006983
申请日：2000-03-17
申请人： WEBTV NETWORKS INC
发明人： PIETRASZAK MICHAEL E , FRIES ROBERT M , GIBSON ROBERT S T , WRAY JONATHAN A
IPC分类号： H04N5/445
CPC分类号： H04N21/4355 , H04N5/44543 , H04N21/26283 , H04N21/4335 , H04N21/443 , H04N21/4431 , H04N21/4532 , H04N21/4622 , H04N21/4782 , H04N21/84 , Y10S707/99953
摘要： EPG services (40) are provided, which enable a device (20) such as a computer, a set top box or the like to collect EPG data from multiple EPG data providers or sources (70). The EPG data is collected at the device (20) by EPG loaders (60). Each EPG loader (61, 62, 63) collects EPG data from a particular source (74, 75, 76). The EPG loaders (60) deliver the EPG data to a writer module (43), which performs scaling and formatting functions to the EPG data. The writer module also stores the scaled and formatted EPG data in a database or other storage (42). The writer module (43) may also be implemented by chaining EPG loaders (60) in a priority scheme. However, EPG loader interaction reduces independence and forces more rigid interface and implementation constraints upon the design of EPG loaders (60). Once stored, applications (22) gain access to the EPG data through a control module (41). The control module (41) provides the accessed EPG data to the applications (22). EPG services (40) function to isolate the operation of the applications (22) from the EPG data sources. Because the EPG data is stored by the writer module (43) and accessed by the control module (41), the applications (22) and EPG data sources (70) can change independently of one another without having an effect on the ability of EPG services (40) to collect and provide access to EPG data.
摘要翻译：提供EPG服务（40），其使诸如计算机，机顶盒等的设备（20）从多个EPG数据提供者或源（70）收集EPG数据。通过EPG装载机（60）在装置（20）处收集EPG数据。每个EPG加载器（61,62,63）从特定源（74,75,76）收集EPG数据。 EPG装载机（60）将EPG数据传送到写入器模块（43），该模块对EPG数据执行缩放和格式化功能。写入器模块还将缩放和格式化的EPG数据存储在数据库或其他存储器中（42）。编写器模块（43）也可以通过以优先方案链接EPG加载器（60）来实现。然而，EPG加载器相互作用减少了独立性，并且在EPG装载机（60）的设计上迫使更加刚性的界面和实施方面的约束。一旦存储，应用（22）通过控制模块（41）获得对EPG数据的访问。控制模块（41）将访问的EPG数据提供给应用（22）。 EPG服务（40）用于隔离应用程序（22）与EPG数据源的操作。由于EPG数据由写入器模块（43）存储并被控制模块（41）访问，应用（22）和EPG数据源（70）可以彼此独立地改变，而不影响EPG的能力服务（40）收集和提供对EPG数据的访问。

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