ACCESS TO ASSOCIATED CONTENT

摘要

A network (10) of media processing devices includes a serving device (30) which receives primary media content and at least one rendering device (50, 70). The serving device (30) provides a service to other devices in the network by storing information about which primary content streams have secondary content associated with them and responds to requests from other devices in the network for the stored information. Devices (e.g. Control Point CP 20) can request the information as part of a process of establishing a connection between the serving device (30) and a rendering device (50) in the network for the delivery of the primary content. Alternatively, devices can register an interest in being notified when secondary content becomes available. A user can select whether they wish to accept the secondary content and can determine which device (50, 70) renders the secondary content.