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US08289846B2 Statistical sub-multiplexer for centrally formatted broadcast programming 失效
用于集中格式化广播节目的统计子多路复用器

Statistical sub-multiplexer for centrally formatted broadcast programming
Abstract:
Methods and systems generate a multiplex signal including two or more different sub-multiplexes for transmission via a broadcast network. A first sub-multiplex may include several services for broadcast in multiple locations, while multiple second sub-multiplexes may include services for broadcast within particular locations. A statistical multiplexer generates the first sub-multiplex within a first bandwidth allocation. If the first sub-multiplex services cannot fit within the allocated bandwidth, the bandwidth allocation may be adjusted. The statistical multiplexer may generate a second sub-multiplex within a second bandwidth allocation. If the second sub-multiplex services do not fit within the allocated bandwidth, the bandwidth allocation may be adjusted to increase the bandwidth allocated to the second sub-multiplex and decrease the bandwidth allocated to the first sub-multiplex so that the total bandwidth capacity of a broadcast network is not exceeded. This process may be repeated for each of the second sub multiplexes.
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