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

• US 10,057,009 B2
• Filed: 01/04/2017
• Issued: 08/21/2018
• Est. Priority Date: 05/23/2006
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Hyoung Gon, Choi, In Hwan, Kim, Byoung Gill, Song, Won Gyu, Kim, Jong Moon, Kim, Jin Woo
• Primary Examiner(s): Kabir, Jahangir
• Application Number:
  US15/398,361
• Publication Number:
  US 20170187490A1
• Time in Patent Office: 594 Days
• Field of Search: 375240
• CPC Class Codes: H03M 13/09 Error detection only, e.g. using cyclic redundancy check [CRC] codes or single parity bit
• CPC Class Codes: H03M 13/15 Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes H03M13/17 takes precedence
• CPC Class Codes: H03M 13/1515 Reed-Solomon codes
• CPC Class Codes: H03M 13/23 using convolutional codes, e.g. unit memory codes
• CPC Class Codes: H03M 13/2732 Convolutional interleaver; Interleavers using shift-registers or delay lines like, e.g. Ramsey type interleaver
• CPC Class Codes: H03M 13/2909 Product codes
• CPC Class Codes: H03M 13/2915 with an error detection code in one dimension
• CPC Class Codes: H03M 13/2918 with error correction codes in three or more dimensions, e.g. 3-dimensional product code where the bits are arranged in a cube
• CPC Class Codes: H03M 13/2927 Decoding strategies
• CPC Class Codes: H03M 13/293 with erasure setting
• CPC Class Codes: H03M 13/2933 using a block and a convolutional code H03M13/2957 takes precedence
• CPC Class Codes: H03M 13/356 Unequal error protection [UEP]
• CPC Class Codes: H03M 13/3723 using means or methods for the initialisation of the decoder
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/2383 Channel coding or modulation of digital bit-stream, e.g. QPSK modulation arrangements for detecting or preventing errors in the information received by adapting the channel coding H04L1/0009; analogue front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/4382 Demodulation or channel decoding, e.g. QPSK demodulation analog front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002

Abstract

A method of processing broadcast data in a broadcast transmitting system, the method includes randomizing, by a hardware processor, the broadcast data; first encoding, by the hardware processor, the randomized broadcast data to add first parity data for first forward error correction; second encoding, by the hardware processor, the first-encoded broadcast data to add second parity data for second forward error correction; permuting the second-encoded broadcast data; block interleaving, by the hardware processor, the permuted broadcast data; third encoding signaling information for signaling the broadcast data to add parity data; fourth encoding the third-encoded signaling information at a code rate; block interleaving the fourth-encoded signaling information; modulating the block-interleaved broadcast data and the block-interleaved signaling information; and transmitting a broadcast signal including the modulated broadcast data and the modulated signaling information.

Claims

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

randomizing, by a hardware processor, first broadcast data and second broadcast data;

first encoding, by the hardware processor, the randomized first broadcast data to add first parity data and the randomized second broadcast data to add second parity data;

second encoding, by the hardware processor, the first-encoded first broadcast data at a first code rate and the first-encoded second broadcast data at a second code rate;

block interleaving, by the hardware processor, the second-encoded first broadcast data and the second-encoded second broadcast data;

third encoding signaling information for signaling the first and second broadcast data to add third parity data, wherein the signaling information includes information required by a broadcast receiving system to process the first and second broadcast data;

fourth encoding the third-encoded signaling information at a third code rate;

block interleaving the fourth-encoded signaling information;

modulating the block-interleaved first and second broadcast data and the block-interleaved signaling information; and

transmitting a broadcast signal including the modulated broadcast data and the modulated signaling information,

wherein the broadcast signal further includes third broadcast data multiplexed with the first and second broadcast data.

2. The method of claim 1, wherein the broadcast signal further includes data for performing channel estimation in the broadcast receiving system.

3. The method of claim 1, further comprising:

randomizing the signaling information.

4. A broadcast transmitting system for processing data, the broadcast transmitting system comprising:

a hardware processor configured to;

randomize first broadcast data and second broadcast data,

first encode the randomized first broadcast data to add first parity data and the randomized second broadcast data to add second parity data,

second encode the first-encoded first broadcast data at a first code rate and the first-encoded second broadcast data at a second code rate,

block interleave the second-encoded first broadcast data and the second-encoded second broadcast data,

third encode signaling information for signaling the first and second broadcast data to add third parity data, wherein the signaling information includes information required by a broadcast receiving system to process the first and second broadcast data,

fourth encode the third-encoded signaling information at a code rate, and

block interleave the fourth-encoded signaling information; and

a transmitter including a modulator which modulates the block-interleaved first and second broadcast data and the block-interleaved signaling information, wherein the transmitter is configured to transmit a broadcast signal including the modulated broadcast data and the modulated signaling information and

wherein the broadcast signal further includes third broadcast data multiplexed with the first and second broadcast data.

5. The broadcast transmitting system of claim 4, wherein the broadcast signal further includes data for performing channel estimation in the broadcast receiving system.

6. The broadcast transmitting system of claim 4, wherein the hardware processor further randomizes the signaling information.