Headend processing for a digital transmission system

Details Headend processing for a digital transmission system Headend processing for a digital transmission system

H - Electricity

04

L

H04L 12/18 (2006.01) H04N 7/10 (2006.01) H04N 7/58 (2006.01) H04H 1/00 (2006.01) H04H 1/04 (2006.01)

Patent

CA 2123778

2123778 9310606 PCTABS00022 A headend method and apparatus for a digital transmission system is provided which includes inputs for receiving first and second program information from first and second program sources and inputs for receiving first and second control information from first and second control sources. The first and second program information is applied to a switching circuit and a switch control controls the switching circuit to output channels of program information comprising combinations of the first and second program information for output to a subscriber. Processing circuitry allows for selectively providing the first and second control information to the channels output from the switching circuit.

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