Patent ID: 8656262
Filing Date: 2014-02-18
Classification: H04L,H04N

Abstract:
1. An apparatus for transmitting a broadcast signal, the apparatus comprising: an encoder configured to encode mobile data for FEC (Forward Error Correction) to build RS (Reed-Solomon) frames, wherein the RS frames include a primary RS frame or primary and secondary RS frames according to RS frame mode information; a signaling encoder configured to encode Transmission Parameter Channel (TPC) data including the RS frame mode information; a divider configured to divide at least one of the RS frames into a plurality of portions; a block processor configured to convert one of the plurality of portions to a plurality of SCCC (Serial Concatenated Convolutional Coding) blocks; a converter configured to convert the plurality of SCCC blocks to data blocks; a group formatter configured to form data groups, wherein at least one of the data groups includes the data blocks, wherein a specific one of the data blocks includes the TPC data, wherein a third one of the data blocks includes a first known data sequence, wherein a fourth one of the data blocks includes second and third known data sequences, wherein a fifth one of the data blocks includes a fourth known data sequence, wherein a sixth one of the data blocks includes a fifth known data sequence, wherein a seventh one of the data blocks includes a sixth known data sequence; a packet formatter configured to form data packets including data in the data groups; a multiplexer configured to multiplex main data packets including main data and the data packets; a trellis encoder configured to perform trellis encoding on data in the multiplexed data packets; and a transmission unit configured to transmit the broadcast signal including the trellis-encoded, wherein the TPC data further includes an identification field to indicate a parade that is a collection of the data groups having same FEC codes.