Digital broadcasting system and method of processing data in digital broadcasting system

• US 8,165,244 B2
• Filed: 07/07/2011
• Issued: 04/24/2012
• Est. Priority Date: 08/24/2007
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Chul Soo, Choi, In Hwan, Kwak, Kook Yeon, Kim, Jin Woo, Song, Jae Hyung, Kim, Jin Pil, Song, Won Gyu, Lee, Hyoung Gon, Kim, Byoung Gill, Suh, Jong Yeul
• Primary Examiner(s): Tran, Khai
• Application Number:
  US13/178,453
• Publication Number:
  US 20110261902A1
• Time in Patent Office: 292 Days
• Field of Search: 375/295, 375/130, 375/146, 375/298, 375/302, 370/312, 370/329, 370/322, 370/342, 455/450, 455/509, 714/758
• US Class Current: 375/295
• CPC Class Codes: H04H 20/30 by a single channel
• CPC Class Codes: H04H 20/57 for mobile receivers
• CPC Class Codes: H04H 60/73 using meta-information

Abstract

The present invention provides a data processing method. The data processing method includes receiving a broadcast signal in which main service data and mobile service data are multiplexed, acquiring transmission-parameter-channel signaling information including transmission parameter information of the mobile service data, and fast-information-channel signaling information, acquiring binding information describing a relationship between at least one ensemble transferring the mobile service data and a first virtual channel contained in any of the at least one ensemble by decoding fast-information-channel signaling information, acquiring ensemble identification information transferring the first virtual channel using the binding information, and receiving at least one mobile service data group transferring an ensemble according to the ensemble identification information, parsing service table information contained in the ensemble and decoding content data contained in the first virtual channel using the parsed service table information, and displaying the decoded content data.

Claims

1. A method of processing a digital broadcast signal in a transmitter, the method comprising:

building Reed-Solomon (RS) frames through which mobile service data are RS and cyclic redundancy check (CRC) encoded;

encoding signaling information including a transmission parameter channel (TPC) including transmission parameters, and a fast information channel (FIC) including cross layer information for mobile service acquisition; and

transmitting the broadcast signal including ensembles,

wherein the ensembles include data groups including the mobile service data in the built RS frames and the encoded signaling information,

wherein the encoded signaling information is inserted into a reserved area in each data group,

wherein the FIC further includes a first ensemble identifier identifying a specific ensemble, wherein the specific ensemble includes a service map table (SMT), the SMT comprising a header and a payload, the header including a second ensemble identifier corresponding to the first ensemble identifier, the payload including service acquisition information of the specific ensemble, the SMT further comprising Internet Protocol (IP) access information of a mobile service for acquiring an IP datagram of the mobile service from the specific ensemble.

2. The method of claim 1, wherein each of the data groups includes a plurality of known data sequences, wherein the encoded signaling information is inserted between a first known data sequence and a second known data sequence of the plurality of known data sequences.

3. The method of claim 1, wherein the SMT is carried via a pre-defined IP address and a pre-defined User Datagram Protocol (UDP) port in each of the ensembles.

4. The method of claim 1, wherein the SMT further comprises source IP address information containing a source IP address of all IP datagrams carrying IP stream components of the mobile service and component number information specifying a number of the IP stream components of the mobile service.

5. An apparatus for processing a digital broadcast signal in a transmitter, the apparatus comprising:

a frame encoder configured to build Reed-Solomon (RS) frames through which mobile service data are RS and cyclic redundancy check (CRC) encoded;

a signaling encoder configured to encode signaling information including a transmission parameter channel (TPC) including transmission parameters and a fast information channel (FIC) including cross layer information for mobile service acquisition; and

a transmission unit configured to transmit the broadcast signal including ensembles,

wherein the ensembles include data groups including the mobile service data in the built RS frames and the encoded signaling information, wherein the encoded signaling information is inserted into a reserved area in each data group,

wherein the FIC includes a first ensemble identifier identifying a specific ensemble, wherein the specific ensemble includes a service map table (SMT), the SMT comprising a header and a payload, the header including a second ensemble identifier corresponding to the first ensemble identifier, the payload including service acquisition information of the specific ensemble, the SMT further comprising Internet Protocol (IP) access information of a mobile service for acquiring an IP datagram of the mobile service from the specific ensemble.

6. The apparatus of claim 5, wherein each of the data groups includes a plurality of known data sequences, wherein the encoded signaling information is inserted between a first known data sequence and a second known data sequence of the plurality of known data sequences.

7. The apparatus of claim 5, wherein the SMT is carried via a pre-defined IP address and a pre-defined User Datagram Protocol (UDP) port in each of the ensembles.

8. The apparatus of claim 5, wherein the SMT further comprises source IP address information containing a source IP address of all IP datagrams carrying IP stream components of the mobile service and component number information specifying a number of the IP stream components of the mobile service.