Patent ID: 8295377
Filing Date: 2012-10-23
Classification: H04H,H04L

Abstract:
1. An apparatus for transmitting a broadcast signal, the apparatus comprising: an encoder configured to encode mobile data for Forward Error Correction (FEC); a signaling encoder configured to encode signaling information; a group formatter configured to form data groups including the encoded mobile data, the encoded signaling information and known data sequences, wherein at least one of the data groups further includes data blocks, wherein a first known data sequence of the known data sequences is located in a third data block of the data blocks, wherein a second known data sequence and a third known data sequence of the known data sequences are located in a fourth data block of the data blocks, wherein a fourth known data sequence of the known data sequences is located in a fifth data block of the data blocks, wherein a fifth known data sequence of the known data sequences is located in a sixth data block of the data blocks, wherein a sixth known data sequence of the known data sequences is located in a seventh data block of the data blocks, and wherein the first known data sequence, the third known data sequence, the fourth known data sequence, the fifth known data sequence and the sixth known data sequence are located in data blocks with a same pattern and are spaced specific segments apart; and a transmission unit configured to transmit the broadcast signal including a parade that includes a collection of data groups having same FEC parameters, wherein the signaling information includes first information identifying the parade and second information indicating a first assigned data group number for the parade to which a first assigned data group belongs.