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本篇文章主要介绍了在数字电视图文信息服务系统中,各类模块之间的信息交互的外部接口设计方案。它为数字电视增值业务-图文信息服务系统的起步与拓展打下了良好的设计基础。
This article mainly introduces the external interface design scheme of information exchange between various modules in digital TV graphic information service system. It has laid a good design basis for the digital TV value-added service - graphic information service system starting and expanding.