Multiplex communications – Communication techniques for information carried in plural... – Transmission bandwidth conservation
Reexamination Certificate
2006-07-11
2006-07-11
Kizou, Hassan (Department: 2662)
Multiplex communications
Communication techniques for information carried in plural...
Transmission bandwidth conservation
C370S437000, C725S036000, C348S384100
Reexamination Certificate
active
07075945
ABSTRACT:
In a data communication system such as a high capacity DBS system, dynamic mapping of broadcast resources is provided to exploit occasional redundancy in the program content of two or more input data streams, freeing at least one broadcast resource to carry alternate bitstreams, such as additional programs or existing programs at higher quality. Transmission maps defining the correspondence between input data streams and broadcast resources, and reception maps defining the correspondence between broadcast resources and output data streams, are updated as needed to dynamically modify broadcast resource mapping to increase effective utilization of available bandwidth. Beneficial n:n−y:m mapping in a high capacity consumer DBS entertainment system is provided. Apparatus and methods for efficiently generating, maintaining and updating allocation maps with reduced overhead requirements, are disclosed.
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Arsenault Robert G.
James Thomas H.
Leminh Tam T.
Elallam Ahmed
Grunebach Georgann S.
Kizou Hassan
The DirecTV Group, Inc.
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