Synchronized context sharing over multiple devices: Personalized rendering of multimodal contents

In this paper, we introduce a method for synchronization of multiple devices based on context sharing and system design for multimodal contents service. A main advantage we can expect from our system environment is eliciting abundant function features of each device and exploiting them for rendering multimodal information in more efficient ways. To make it feasible, context s haring takes a significant role in integrating whole environment. Based on shared context, system gets a guideline for assigning a role for each device in current configuration and makes them have synchronized behaviors. In a multimodal contents service, the contents are processed and converted into service data sets which are separated into each modal information. Each modal information is mapped to function features of devices. We design user profile, for generating proper user context in a service, and device profile, for acquiring synchronized behavior over different capability of devices. The service system monitors changes of user's context and evaluates state of synchronization between devices in runtime. And it adaptively controls the service data flow to have stable and continuous performance.