Patent ID: 6266813
Filing Date: 2001-07-24
Classification: H04H,H04N

Abstract:
A method for transmitting programs from a primary transmission system to a secondary transmission system, comprising:providing a first schedule for transmitting from said primary transmission system to said secondary transmission system first data corresponding to a first program;transmitting said first data from said primary transmission system to said secondary transmission system in accordance with said first schedule;providing a second schedule for transmitting from said secondary transmission system to subscribers of said secondary transmission system second data corresponding to a second program, said second schedule being based upon said first schedule;during said transmitting of said first data in accordance with said first schedule, modifying said first schedule to provide a modified first schedule;generating at said primary transmission system change data indicating said modified schedule;multiplexing at said primary transmission system said change data with said first data to provide a multiplexed data stream;transmitting said multiplexed data stream from said primary transmission system to said secondary transmission system;demultiplexing at said secondary transmission system said multiplexed data stream to provide said change data;modifying at said secondary transmission system said second schedule based upon said change data to provide a modified second schedule; andtransmitting said second data from said secondary transmission system to said subscribers based upon said modified second schedule.