Abstract: A method and system by which a client device can gather ESG data from disparate sources and present them to a user in a unified manner via a single user interface provides improved usability of the ESG. A method for providing an electronic service guide comprises acquiring a plurality of electronic service guides, translating each of the plurality of electronic service guides that was not acquired in a specified representation to the specified representation, combining the plurality of electronic service guides in the specified representation to form a unified electronic service guide, and providing the unified electronic service guide for display.

Abstract: A system, apparatus, and method for transmitting data in a broadcast mode to multiple devices operating in a network. The invention enables the efficient utilization of bandwidth while providing a desired level of quality of service for the applications executing on the devices that utilize the broadcasted data. The invention utilizes a set of bandwidth constraints in combination with a set of heuristics and rules for the allocation and re-allocation of bandwidth among multiple applications in a manner that minimizes the impact on the quality of service metrics of importance to the affected applications when contention exists for the network resources. The present invention implements processes to cause the quality of service provided to each application to degrade smoothly, with certain priorities and guarantees being maintained.

Abstract: A method and system provides the capability for multicast data traffic to flow with a unicast mechanism; that is, for some network entity to send a copy of the MC data session to a specific network address associated with the client. A method of transmitting data traffic comprises transmitting data using a multicast session to a plurality of destinations, determining that the multicast session to at least one of the destinations of the plurality of destinations should be switched to a unicast session to the at least one destination, and switching the multicast session to the at least one destination to a unicast session to the at least one destination.

Abstract: A method is provided for restricting or enhancing broadcast content access on a per-subscriber basis across a population of subscribers, all of whom have a valid content access key to such content, without necessitating changes to the current standard schemes and protocols for distributing content access keys and broadcasting the traffic keys associated with the broadcast data itself, and without trusting the application that processes the data. A method of handling a multimedia broadcast in a device comprises receiving broadcast content in a media stream encrypted using a traffic key, receiving the traffic key encrypted using a session key, and receiving broadcast attributes encrypted using the traffic key and the session key, wherein use of the media stream by the device is controlled using the broadcast attributes and using an access policy in the device.