Digital television transmitting system and receiving system and method of processing broadcasting data

• US 9,392,281 B2
• Filed: 11/06/2013
• Issued: 07/12/2016
• Est. Priority Date: 10/12/2006
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Jin Woo, Choi, In Hwan, Kwak, Kook Yeon, Kim, Jong Moon, Song, Won Gyu, Lee, Hyoung Gon, Kim, Byoung Gill
• Primary Examiner(s): Tran, William
• Application Number:
  US14/073,605
• Publication Number:
  US 20140064385A1
• Time in Patent Office: 979 Days
• Field of Search: 386/328, 375/240.27
• US Class Current: 1/1
• CPC Class Codes: H03M 13/11 using multiple parity bits
• CPC Class Codes: H03M 13/613 Use of the dual code
• CPC Class Codes: H04L 1/0061 Error detection codes
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 12/18 for broadcast or conference , e.g. multicast
• CPC Class Codes: H04N 19/61 in combination with predictive coding
• CPC Class Codes: H04N 19/66 involving data partitioning, i.e. separation of data into packets or partitions according to importance
• CPC Class Codes: H04N 19/70 characterised by syntax aspects related to video coding, e.g. related to compression standards

Abstract

A digital television (DTV) transmitting system includes a first frame decoder, a second frame decoder, and a frame multiplexer. The first frame decoder forms first enhanced data frames, encodes each data frame for error correction, forms a first super frame by combining the encoded first frames, and interleaves the first super frame. The second frame decoder forms second enhanced data frames, encodes each data frame for error correction, forms a second super frame by combining the encoded second frames, and interleaves the second super frame. The frame multiplexer multiplexes the interleaved first and second enhanced data frames.

Claims

1. A method of processing data in a transmitting system, the method comprising:

randomizing enhanced data;

first encoding the randomized enhanced data to add first parity data for error correction, thereby forming a frame;

dividing data of the frame into a plurality of groups, wherein the plurality of groups have a same size;

first interleaving data of each group;

second interleaving the first-interleaved data; and

transmitting a broadcast signal including the second-interleaved enhanced data and transmission parameters,

wherein second encoding on the randomized enhanced data is selectively performed to add second parity data for error detection, and

wherein the transmission parameters include information to indicate whether the second encoding is performed on the enhanced data.

2. The method of claim 1, further comprising:

randomizing the transmission parameters; and

encoding the randomized transmission parameters.

3. The method of claim 1, wherein the transmission parameters further include information to identify a size of the first parity data.

4. The method of claim 1, wherein at least one of the plurality of groups includes the first parity data.

5. A transmitting system comprising:

a randomizer to randomize enhanced data;

an encoder to first encode the randomized enhanced data to add first parity data for error correction, thereby forming a frame;

a formatter to divide data of the frame into a plurality of groups, wherein the plurality of groups have a same size;

a data interleaver to first interleave data of each group;

an interleaving means to second interleave the first-interleaved data; and

a transmitting unit to transmit a broadcast signal including the second-interleaved enhanced data and transmission parameters,

wherein the encoder is further to selectively perform second encoding on the randomized enhanced data to add second parity data for error detection, and

wherein the transmission parameters include information to indicate whether the second encoding is performed on the enhanced data.

6. The transmitting system of claim 5, further comprising:

a third randomizer to randomize the transmission parameters; and

a third encoder to encode the randomized transmission parameters.

7. The transmitting system of claim 5, wherein the transmission parameters further include information to identify a size of the first parity data.

8. The transmitting system of claim 5, wherein at least one of the plurality of groups includes the first parity data.