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

• US 8,413,194 B2
• Filed: 08/25/2008
• Issued: 04/02/2013
• 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: Song, Young Hun, Choi, In Hwan, Lee, Chul Soo, Song, Jae Hyung, Lee, Sang Hyup
• Primary Examiner(s): Goodarzi, Nasser
• Assistant Examiner(s): Peng, Fred
• Application Number:
  US12/198,024
• Publication Number:
  US 20090064269A1
• Time in Patent Office: 1,681 Days
• Field of Search: None
• US Class Current: 725/62
• CPC Class Codes: H04H 60/14 Arrangements for conditional access to broadcast information or to broadcast-related services
• CPC Class Codes: H04H 60/73 using meta-information
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/414 Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• 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 21/6131 involving transmission via a mobile phone network wireless downlink channel access H04W74/006
• CPC Class Codes: H04N 5/50 Tuning indicators; Automatic tuning control

Abstract

A digital broadcast receiver and a control method thereof are disclosed. The digital broadcast receiver includes a reception unit for receiving a broadcast signal which mobile service data and main service data are multiplexed, an extractor for extracting transmission parameter channel signaling information and fast information channel signaling information from a data group in the received mobile service data, an acquirer for acquiring a program table describing virtual channel information and a service of an ensemble by using the extracted fast information channel signaling information, the ensemble being a virtual channel group of the received mobile service data, a detector for detecting a descriptor defining a destination telephone number of a message service by using the acquired program table, and a controller for controlling such that the destination telephone number of the message service of the detected descriptor and the mobile service data are displayed.

Claims

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

receiving a broadcast signal, the broadcast signal comprising mobile service data, a signaling information table including Internet protocol (IP) access information of the mobile service data, known data sequences, fast information channel (FIC) data, and transmission parameter channel (TPC) data, wherein the FIC data includes information for rapid mobile service acquisition, and wherein the TPC data includes FIC version information for indicating an update of the FIC data;

demodulating the received broadcast signal;

obtaining the signaling information table from the demodulated broadcast signal; and

obtaining an IP datagram of the mobile service data using the signaling information table,

wherein the FIC data further includes version information of a channel delivering the signaling information table, wherein the mobile service data is packaged into at least one of a plurality of RS frames belonging to an ensemble, the ensemble including the signaling information table.

2. The method of claim 1, wherein the signaling information table is encapsulated with a user datagram protocol and IP (UDP/IP) header including a target IP address and a target UDP port number.

3. The method of claim 1, wherein at least two of the known data sequences are spaced 16 segments apart and at least two of the known data sequences have different lengths.

4. The method of claim 1, wherein the FIC data and the TPC data are positioned between a first known data sequence and a second known data sequence of the known data sequences.

5. The method of claim 1, wherein the FIC data comprises a plurality of FIC segments, each FIC segment comprising a 2-byte segment header including type information which indicates a type of data carried in the FIC segment and a 35-byte segment payload including a portion of the FIC data.

6. The method of claim 5, wherein the segment header further includes error indication information indicating whether the FIC segment contains an error.

24. The method of claim 1, wherein the FIC data and the signaling information table further include an ensemble identifier for identifying the ensemble, respectively.

7. A broadcast receiver comprising:

a tuner for receiving a broadcast signal, the broadcast signal comprising mobile service data, a signaling information table including Internet protocol (IP) access information of the mobile service data, known data sequences, fast information channel (FIC) data, and transmission parameter channel (TPC) data, wherein the FIC data includes information for rapid mobile service acquisition, and wherein the TPC data includes FIC version information for indicating an update of the FIC data;

a demodulator for demodulating the received broadcast signal; and

a handler for obtaining the signaling information table from the demodulated broadcast signal and obtaining an IP datagram of the mobile service data using the signaling information table,

wherein the FIC data further includes version information of a channel delivering the signaling information table, wherein the mobile service data is packaged into at least one of a plurality of RS frames belonging to an ensemble, the ensemble including the signaling information table.

8. The broadcast receiver of claim 7, wherein the signaling information table is encapsulated with a user datagram protocol and IP (UDP/IP) header including a target IP address and a target UDP port number.

9. The broadcast receiver of claim 7, wherein at least two of the known data sequences are spaced 16 segments apart and at least two of the known data sequences have different lengths.

10. The broadcast receiver of claim 7, wherein the FIC data and the TPC data are positioned between a first known data sequence and a second known data sequence of the known data sequences.

11. The broadcast receiver of claim 7, wherein the FIC data comprises a plurality of FIC segments, each FIC segment comprising a 2-byte segment header including type information which indicates a type of data carried in the FIC segment and a 35-byte segment payload including a portion of the FIC data.

12. The broadcast receiver of claim 11, wherein the segment header further includes error indication information indicating whether the FIC segment contains an error.

25. The broadcast receiver of claim 7, wherein the FIC data and the signaling information table further include an ensemble identifier for identifying the ensemble, respectively.

13. A method of processing broadcast data in a broadcast transmitter, the method comprising:

performing, by a Reed Solomon (RS) encoder, RS encoding and Cyclic Redundancy Check (CRC) encoding on mobile service data to generate at least one of a plurality of RS frames belonging to an ensemble, the ensemble including a signaling information table which comprises Internet protocol (IP) access information of the mobile service data;

mapping the at least one of the plurality of RS frames into a plurality of groups, wherein each group includes a portion of data included in a corresponding RS frame, known data sequences, a portion of fast information channel (FIC) data, and transmission parameter channel (TPC) data, wherein the FIC data includes information for rapid mobile service acquisition of the mobile service data and version information of a channel delivering the signaling information table, and wherein the TPC data includes FIC version information for indicating an update of the FIC data; and

transmitting a broadcast signal including the plurality of groups,

wherein at least two of the known data sequences are spaced 16 segments apart and wherein at least two of the known data sequences have different lengths.

14. The method of claim 13, wherein the signaling information table is encapsulated with a user datagram protocol and IP (UDP/IP) header including a target IP address and a target UDP port number.

15. The method of claim 13, wherein the FIC data and the TPC data are positioned between a first known data sequence and a second known data sequence of the known data sequences.

16. The method of claim 13, wherein the FIC data comprises a plurality of FIC segments, each FIC segment comprising a 2-byte segment header including type information which indicates a type of data carried in the FIC segment and a 35-byte segment payload including a portion of the FIC data.

17. The method of claim 16, wherein the segment header further includes error indication information indicating whether the FIC segment contains an error.

26. The method of claim 13, wherein the FIC data and the signaling information table further include an ensemble identifier for identifying the ensemble, respectively.

18. A broadcast transmitter comprising:

a Reed Solomon (RS) encoder for performing RS encoding and Cyclic Redundancy Check (CRC) encoding on mobile service data to generate at least one of a plurality of RS frames belonging to an ensemble, the ensemble including a signaling information table which comprises Internet protocol (IP) access information of the mobile service data;

a group formatting means for mapping the at least one of the plurality of RS frames into a plurality of groups, wherein each group includes a portion of data included in a corresponding RS frame, known data sequences, a portion of fast information channel (FIC) data, and transmission parameter channel (TPC) data, wherein the FIC data includes information for rapid mobile service acquisition of the mobile service data and version information of a channel delivering the signaling information table, and wherein the TPC data includes FIC version information for indicating an update of the FIC data; and

a transmitting means for transmitting a broadcast signal including the plurality of groups,

wherein at least two of the known data sequences are spaced 16 segments apart and wherein at least two of the known data sequences have different lengths.

19. The broadcast transmitter of claim 18, wherein the signaling information table is encapsulated with a user datagram protocol and IP (UDP/IP) header including a target IP address and a target UDP port number.

20. The broadcast transmitter of claim 18, wherein the FIC data and the TPC data are positioned between a first known data sequence and a second known data sequence of the known data sequences.

21. The broadcast transmitter of claim 18, wherein the FIC data comprises a plurality of FIC segments, each FIC segment comprising a 2-byte segment header including type information which indicates a type of data carried in the FIC segment and a 35-byte segment payload including a portion of the FIC data.

22. The broadcast transmitter of claim 21, wherein the segment header further includes error indication information indicating whether the FIC segment contains an error.

23. The broadcast transmitter of claim 18, wherein the FIC data and the signaling information table further include an ensemble identifier for identifying the ensemble, respectively.