Remote Application Control Technology and Implementation of HTML5-based Smart TV Platform

As Korea's standards organization, TTA published the common platform standard for smart TV based on HTML5 web runtime environments. Among the various technical features, this paper introduces a remote application control technology in which a companion device, such as smart phone or tablet, can control the smart TV's applications such as application query, launch, and terminate. It is based on multiscreen technology and the JSON-RPC profile. This paper explains the multiscreen core concept for device discovery and the session connection between the companion device and smart TV, and the definition of the request and response attributes of JSON-RPC to support remote application control. We also compare with the technology with the DIAL protocol developed by Netflix as a reference to emphasize the remote application control features. Additionally, this paper introduces a VOD service example utilizing the remote application control to evaluate the technology's feasibility with a smart TV emulator implementation.