Transmitting system and method of transmitting digital broadcast signal in transmitting system

Patent metadata

Field	Value
Publication number	US-9634691-B2
Application number	US-201314104956-A
Country	US
Kind code	B2
Filing date	Dec 12, 2013
Priority date	Dec 10, 2009
Publication date	Apr 25, 2017
Grant date	Apr 25, 2017

Abstract

A transmitting system and a method of transmitting digital broadcast signal are disclosed. The method of transmitting digital broadcasting signal in a transmitter includes multiplexing a specified number of mobile data packets, a first scalable number of mobile data packets, and a second scalable number of main data packets, interleaving mobile data in the mobile data packets and main data in the main data packets, transmitting the interleaved mobile and main data during a slot, wherein the data group includes a plurality of first blocks, each first block including a plurality of data segments, specified block of the plurality of first blocks including the mobile data, known data sequence, trellis initialization data and RS parity bytes inserted in pre-determined position of the data group, wherein the data group includes a plurality of regions, wherein the last region includes the first scalable number of mobile data packets.

First claim

What is claimed is:

1. A method for transmitting broadcast signals, the method comprising:
encoding first service data and second service data, wherein the first service data includes data of a core mode, and the second service data includes data of the core mode and data of an extended mode, and wherein the data of the core and extended modes of the second service data are encoded by different code rates;
interleaving the first service data and the second service data, wherein the interleaved first service data and the interleaved second service data include groups, respectively, and a number of the groups is variable based on an amount of the interleaved first service data or the interleaved second service data;
building at least one signal frame including the interleaved first service data and the interleaved second service data; and
transmitting broadcast signals including the built at least one signal frame.

2. The method of claim 1 , wherein the built at least one signal frames includes signaling information which includes information for fast service acquisition.

3. The method of claim 2 , wherein the built at least one signal frame includes frame number information indicating a number of sub-frames included in the built at least one signal frame, and version information indicating a version of the signaling information.

4. The method of claim 3 , wherein the built at least one signal frame includes known data, and the known data is used for channel equalization.

5. The method of claim 4 , wherein the known data is inserted by a specific pattern.

6. The method of claim 5 , wherein each of the known data is spaced apart regularly.

7. An apparatus for transmitting broadcast signals, the apparatus comprising:
an encoder to encode first service data and second service data, wherein the first service data includes data of a core mode, and the second service data includes data of the core mode and data of an extended mode, and wherein the data of the core and extended modes of the second service data are encoded by different code rates;
an interleaver to interleave the first service data and the second service data, wherein the interleaved first service data and the interleaved second service data include groups, respectively, and a number of groups is variable based on amount of the interleaved first service data or the interleaved second service data;
a builder to build at least one signal frame including the interleaved first service data and the interleaved second service data; and
a transmitter to transmit broadcast signals including built at least one signal frame.

8. The apparatus of claim 7 , wherein the built at least one signal frame includes signaling information which includes information for fast service acquisition.

9. The apparatus of claim 8 , wherein the built at least one signal frame includes frame number information indicating a number of sub-frames included in the built at least one signal frame, and version information indicating a version of the signaling information.

10. The apparatus of claim 7 , wherein the built at least one signal frame includes known data, and the known data is used for channel equalization.

11. The apparatus of claim 10 , wherein the known data is inserted by a specific pattern.

12. The apparatus of claim 11 , wherein each of the known data is spaced apart regularly.

Assignees

• Lg Electronics Inc

Inventors

• Song Won Gyu
• Kim Byoung Gill
• Kim Jin Woo
• Lee Hyoung Gon
• Song Jae Hyung
• Choi In Hwan
• Mun Chul Kyu

Classifications

• H03M13/1515

  Reed-Solomon codes · CPC title

• H03M13/6538

  ATSC VBS systems · CPC title

• H03M13/2915

  with an error detection code in one dimension · CPC title

• H03M13/09

  Error detection only, e.g. using cyclic redundancy check [CRC] codes or single parity bit · CPC title

• H03M13/253

  with concatenated codes · CPC title