Description  Claims  Drawing  Cited references 

JP2005333291A   [0002] 
JP2003234683A   [0002] 
US20120321012A1   [0006] 
EP1303060A1   [0007] 

Digital Radio Mondiale (DRM): Multi-Transmitter Networks and Diversity Reception   [0008] 
DRM Introduction and Implementation Guide   [0009]