Digital broadcasting system and data processing method

• US 8,885,762 B2
• Filed: 08/23/2013
• Issued: 11/11/2014
• Est. Priority Date: 09/21/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Choi, In Hwan, Suh, Jong Yeul, Lee, Chul Soo, Song, Jae Hyung, Kim, Jin Pil
• Primary Examiner(s): Liu, Shuwang
• Assistant Examiner(s): Bolourchi, Nader
• Application Number:
  US13/975,219
• Publication Number:
  US 20140068369A1
• Time in Patent Office: 445 Days
• Field of Search: 375/295, 375/265, 714/784, 714/E11.03
• US Class Current: 375/295
• CPC Class Codes: H04H 20/55 for traffic information
• CPC Class Codes: H04H 20/57 for mobile receivers
• CPC Class Codes: H04H 60/07 characterised by processes or methods for the generation
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/0061 Error detection codes
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04L 27/02 Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation H04L27/32 takes precedence
• CPC Class Codes: H04N 7/015 High-definition television systems
• CPC Class Codes: H04N 7/088 the inserted signal being digital
• CPC Class Codes: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]

Abstract

According to one embodiment, a digital broadcasting system includes an RS (Reed-Solomon) encoder configured to encode mobile service data for FEC (Forward Error Correction) to build RS frames including the mobile service data and a signaling information table, a signaling encoder configured to encode signaling information including fast information channel (FIC) data, and transmission parameter channel (TPC) data, a group formatter configured to form data groups, wherein at least one of the data groups includes encoded mobile service data, known data sequences, the FIC data and the TPC data, and a transmission unit configured to transmit the broadcast signal including a parade of the data groups.

Claims

1. A transmitting system for transmitting broadcast signals, the transmitting system comprising:

an encoder that encodes mobile service data for FEC (Forward Error Correction);

a formatter that generates a data unit including the encoded mobile service data; and

a transmission unit that transmits the broadcast signals including the generated data unit, wherein the data unit is multiplexed with main service data in a specific time period,

wherein the data unit further includes a signaling information table to access a mobile service carried in a group of encoded mobile service data with same FEC code, wherein the signaling information table includes identification information for identifying the group of the encoded mobile service data with same FEC code and service id information for identifying each mobile service.

2. The transmitting system of claim 1, wherein the signaling information table is transmitted by at least one section, each of the at least one section comprising a section header and a section body, and

wherein the section header includes a table identifier and the identification information, and the section body includes the service id information.

3. The transmitting system of claim 2, wherein the signaling information table is differentiated by using the table identifier.

4. The transmitting system of claim 1, wherein the signaling information table includes status information indicating a status of each mobile service.

5. A method for transmitting a broadcast signal, the method comprising:

encoding mobile service data for FEC (Forward Error Correction);

generating a data unit including the encoded mobile service data; and

transmitting the broadcast signal including the data unit, wherein the data unit is multiplexed with main service data in a specific time period,

wherein the data unit further includes a signaling information table to access a specific mobile service carried in a group of encoded mobile service data with same FEC code, wherein the signaling information table includes identification information for identifying the group of the encoded mobile service data with same FEC code and service id information for identifying each mobile service.

6. The method of claim 5, wherein the signaling information table is transmitted by at least one section, each of the at least one section comprising a section header and a section body, and

wherein the section header includes a table identifier and the identification information, and the section body includes the service id information.

7. The method of claim 6, wherein the signaling information table is differentiated by using the table identifier.

8. The method of claim 5, wherein the signaling information table includes status information indicating a status of each mobile service.