3DTV system for HFC network

In this paper, we propose 3DTV systems and introduce demonstrations for providing 3DTV service over HFC network. We introduce two types of 3DTV system using single broadcasting channel or multiple communication channels to broadcast or transmit 3DTV contents over HFC network, respectively. The 3DTV system using single broadcasting channel has an advantage being compatible with the current digital cable broadcasting system except 3DTV camera, video multiplexer and demultiplexer added to capture and process the stereoscopic 3DTV video contents. By using downstream channel bonding scheme, another 3DTV system also has an advantage enabling to transmit massive broadcasting contents for 3DTV and UHDTV services. Those massive broadcasting contents usually requires much larger bandwidth than that of single broadcasting channel. In order to verify the proposed 3DTV systems, we have conducted demonstrations and provided the real 3DTV services over HFC network during the KCTA 2009 Digital Cable Show held in June, 2009. The 3DTV systems are expected to be used and referred for developing 3DTV standards and conducting the real 3DTV broadcasting trial services in Korea.