Multichannel broadcasting system

A multichannel broadcasting system for outputting a plurality of broadcast contents to a plurality of output channels, comprising:

• a storage unit for supplying said broadcast contents;
• a plurality of output buffer apparatuses wherein a number of said plurality of output buffer apparatuses is greater than a number of output buffer apparatuses required for assignment to said plurality of output channels;
• and
• a control unit for causing broadcast contents to be copied from said storage unit to said output buffer apparatuses and transmitted from said output buffer apparatuses to respective output channels corresponding with said output buffer apparatuses on the basis of a predetermined transmission order, wherein:
• said control unit assigns some of said output buffer apparatuses to correspond to a respective plurality of said output channels as main output buffer apparatuses and remaining output buffer apparatuses respectively to all of said plurality of output channels as backup output buffer apparatuses;
• broadcast contents to be transmitted to any of said plurality of output channels are stored in said a main output buffer apparatus corresponding to said output channel;
• a priority order of the broadcast contents is determined based on the predetermined transmission order;
• and
• broadcast contents to be transmitted to all of said plurality of output channels are stored in each of said backup output apparatuses based on the priority order of the broadcast contents;
• and
• in the event of a failure occurring in any of said main output buffer apparatuses, said control unit assigns one of said backup output buffer apparatuses as a main output buffer apparatus for output channels associated with said main output buffer apparatus in which said failure occurred, wherein
• said control unit has an apparatus assignment table for associating some of said output buffer apparatuses with a respective plurality of said output channels as a main output buffer apparatus and remaining output buffer apparatuses with a respective plurality of said output channels as a backup output buffer apparatus;
• and
• signals of broadcast contents are copied from said storage unit to respective ones of said output buffer apparatuses in accordance with said apparatus assignment table.