Patent ID: 8854428

Claim:
A method for receiving a three dimensional (3D) broadcast signal, the method comprising: receiving signaling information of at least one stream for a 3 Dimension TeleVision (3DTV) service and a two dimensional (2D) video stream; demultiplexing at least one stream for the 3DTV service and the 2D video stream based on the signaling information; decoding at least one demultiplexed stream for the 3DTV service and the demultiplexed 2D video stream; and outputting a 3D video signal by formatting at least one decoded stream for the 3DTV service and the decoded 2D video stream, wherein the signaling information is defined in a descriptor of a Virtual Channel Table (VCT) or a Program map Table (PMT), wherein the VCT includes a service_type field identifying whether a virtual channel described by the VCT carries the 3DTV service, wherein the signaling information includes: a number_element field specifying a number of elements associated with the 3DTV service, a data_type field identifying whether each of the elements carries occlusion information, or transparency information corresponding to the 2D video stream, a codec_type field identifying a coding type applied for the occlusion information, or the transparency information, a third field that identifies whether resolution of at least one stream for the 3DTV service is identical to that of the 2D video stream, and a horizontal_size field indicating a horizontal size of a element included in the 3DTV service and a vertical_size field indicating a vertical size of the element when the third field indicates that the resolution of the at least one stream for the 3DTV service is different from that of the 2D video stream.