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AssigneeGeneral Instrument Corporation
InventorsPetr Peterka, Alexander Medvinsky
Estimating the term…
Method and apparatus providing program information to client devices for at least one multicast stream of digital content is described. In one embodiment, session description messages for the at least one multicast stream of digital content are generated. Each of the session description messages includes at least one content access parameter. The at least one content access parameter may include digital rights management (DRM) data, channel key identification data associated with the at least one channel of the at least one multicast stream of digital content, and/or data indicative of whether each session description message is associated with a channel, a program, or a program segment. Each of the session description messages is signed using a cryptographic key. The session description messages are then multicasted to the client devices using a predefined multicast address.
A method of providing program information to client devices for at least one multicast stream of digital content, comprising:
Apparatus for providing program information to client devices for at least one multicast stream of digital content, comprising:
A computer readable medium having stored thereon instructions that, when executed by a processor, cause the processor to perform a method of providing program information to client devices for at least one multicast stream of digital content, comprising:
Dependencies are inferred from the claim text.