Method and apparatus for broadcasting media objects with guaranteed quality of service
AssigneeNortel Networks Limited
InventorFulu Li
Life of this patent
Estimating the term…
Loading patent…
AssigneeNortel Networks Limited
InventorFulu Li
Estimating the term…
A method and apparatus for broadcasting media objects for such bandwidth-intensive applications as Media on Demand (MoD) or Video on Demand (VoD) employ a novel StairCase Broadcast (SCB) scheme. A media server in accordance with one example of the invention includes a fragmenter that fragments media objects into multiple segments, with each segment provided to a corresponding streamer. Each streamer periodically and continuously streams data associated with its corresponding media segment on a connection between the server and a media client. A download controller in the media client selectively causes the proper streams to be received for downloading from the server in accordance with the fragmentation of the selected media object and the number of streams that the client can simultaneously receive for downloading. A selector is operable to cause data from each successive segment to be downloaded from the corresponding stream immediately regardless of the position in the period associated with the successive segment. By its design, the method and apparatus of the present invention allow for lossless broadcast of media contents with de-coupled per-media-object server and client bandwidth design considerations.
An apparatus for providing a media object over a connection comprising:
A method of fragmenting a media object into a fragmentation comprising a plurality Km of segments, the segments having a sequence from a first segment to a last segment, the media object having a plurality Nm of frames of media data, the method comprising the steps of:
An apparatus for fragmenting a media object comprising a plurality Km of segments, the segments having a sequence from a first segment to a last segment, the media object having a plurality Nm of frames of media data, the apparatus including:
Dependencies are inferred from the claim text.