Apparatus for redundant multiplexing and remultiplexing of program streams and best effort data

摘要: A redundant remultiplexer (500) is described which capable of remultiplexing fixed length transport stream packets. Illustratively, at least some the packets contain program data, i.e., data with a sensitive delivery schedule, such as variably compressed audio-video data. An example MPEG-2 encoded video. The has chassis architecture input modules (521) that receive externally originating packets, output selected and switch (531, 532). perform packet function, they received by to respective on basis, e.g., based address information in each switched packet. can also supplied Each, module backup (522) assumes role for it event failure. In case modules, actually running, even while standby mode, but otherwise disables its output. reason must be processed preliminary step outputting them (e.g., ensure strict schedule maintained). This manner operation enables quicker recovery fewer lost especially where retransmission bearing packets) an ultimate receiver not possible.