Patent ID: 9113194
Filing Date: 2015-08-18
Classification: H04N

Abstract:
1. A method for performing statistical time division multiplexing (StatMux) in a StatMux system, the method comprising: receiving a plurality of video programs, each on a respective video program channels; transcoding each of the plurality of video programs in a respective transcoder to produce a plurality of transcoded video programs; outputting each of the plurality of transcoded video program from the respective transcoders at a respective bit rates; providing a data channel in the StatMux system that carries a stream of data bits; prior to multiplexing the plurality of transcoded video programs output from the transcoders with the data bit stream from the data channel, determining a target average output bit rate for the output video programs combined for a corresponding discrete period of time based on a bit rate to be allocated for transmission of said data bits in said discrete period of time, controllably varying an output bit rate combined for the transcoded video programs output from the transcoders by: receiving the transcoded video programs adjusted by the set of quantization parameters and a data bit stream from the data channel for multiplexing the adjusted transcoded video program bits and the data bits to produce an output bit stream of combined video bits and data bits for transmission on a transmission channel, wherein the one or more transcoded video programs and the data bits share an available bandwidth of the transmission channel.