Patent ID: 9055316
Filing Date: 2015-06-09
Classification: H04N

Abstract:
1. A method of forming an output signal comprising: receiving a plurality of signals having a first format; encoding the plurality of signals into a plurality of transport streams; after encoding, routing the plurality of transport streams comprising a first transport stream through a local area network to a primary multiplexer in a primary path to form a plurality of primary transport streams having a primary first transport stream and a secondary multiplexer in a secondary path to form a plurality of secondary transport streams having a secondary first transport stream; communicating a digital video effect to an input of the primary multiplexer and the secondary multiplexer from an ad insertion server; thereafter, combining the digital video effect into the primary first transport stream of the primary path in the primary multiplexer and the secondary first transport stream of the secondary path in the secondary multiplexer to change a visual display of the primary first transport stream and the secondary first transport stream without removing the primary first transport stream and the secondary first transport stream; multiplexing the plurality of primary transport streams including the primary first transport stream to form a primary combined signal with the digital video effect in the primary multiplexer; multiplexing the plurality of secondary transport streams including the secondary first transport stream to form a secondary combined signal with the digital video effect in the secondary multiplexer; switching between the primary combined signal and the secondary combined signal to form a selected combined signal; modulating the selected combined signal to form a modulated signal; and forming the output signal from the modulated signal.