Patent ID: 8315333
Filing Date: 2012-11-20
Classification: H04L

Abstract:
1. A method of processing a digital broadcast signal, the method comprising; generating one Reed-Solomon (RS) frame or two RS frames for a data group, the RS frame being a 2-dimensional data frame which includes mobile service data; forming the data group including the mobile service data, the data group being divided to 5 data regions, wherein the 5 data regions include a first data region which is located at central of the data group, a second data region which is concentric about the first data region, a third data region which is concentric about the first and second data region, a fourth data region which is concentric about the first, second and third data region and a fifth data region which includes scalable amount of the mobile service data according to a transmission mode, wherein each of the first, second, third and fourth data regions includes a plurality of data blocks each of which includes 16 data segments and the fifth data region includes 5 extended data blocks each of which includes a plurality of data segments, wherein data in one of the 5 extended data blocks are merged into the data blocks of the first data region when the one RS frame is generated for the data group; and transmitting the digital broadcast signal including the data group.