| 摘要 |
<p>A system and method is provided for including a multi-channel chat application as enhancement content in a television broadcast system. According to one aspect of the invention, a broadcast station (101) embeds multiple chat channels as enhancement content into a broadcast stream to a plurality of receivers (103). End users (190) associated with the receivers (103) may view the embedded chat channels and interact in chat sessions conducted in accordance with each chat channel by entering chat messages to be transmitted back to the broadcast station (101) via a suitable backchannel. According to another aspect of the invention, a broadcast station (101) embeds multiple chat channels as enhancement content into a broadcast stream to a plurality of receivers (103). End users (190) associated with the receivers may view the embedded multiple chat channels but may not interact in chat session conducted in accordance with each of the multiple chat channels. That is, there is no provision made to allow the end users (190) to participate in the chat sessions. In this regard, the chat application, according to the described embodiment, is used as a subtitle and/or expert comments application.</p> |
