公开(公告)号：EP1032996A4

公开(公告)日：2006-07-05

申请号：EP98957612

申请日：1998-11-06

Applicant: WORLDSPACE CORP

Inventor： CAMPANELLA S JOSEPH ,  EBERLEIN ERNST ,  COURSEILLE OLIVIER ,  MELTZER STEFAN ,  DUNAS ETIENNE

IPC: H04N7/16 ,  H04B7/185 ,  H04H20/74 ,  H04H40/90 ,  H04J3/00 ,  H04N7/20 ,  H04H1/00

CPC classification number: H04H40/90 ,  H04B7/18526 ,  H04H20/74 ,  H04H2201/19

Abstract: A satellite direct radio broadcast system (10) is provided which assembles bits of broadcast programs into prime rate increments, several of which are assembled into a frame. Frames are divided into symbols which are demultiplexed into alternating one of a plurality of prime rate channels. The prime rate channels are demultiplexed onto a corresponding number of broadcast frequencies for transmission to a satellite (25). The satellite payload switches the symbols into time division multiplexed (TDM) data streams. The receivers (29) process the TDM streams using service control headers (SCHs) provided therein by broadcast stations. The SCHs facilitate transmission of different service components within broadcast channel frames, association of a primary broadcast channel with one or more secondary broadcast channels on a frame-to-frame basis, and the transmission of multiframe bit streams, or auxiliary data throughout a broadcast channel that are independent of a service, in contiguous or non-contiguous frames.