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

• US 8,051,451 B2
• Filed: 08/25/2008
• Issued: 11/01/2011
• 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: Choi, In Hwan, Lee, Chul Soo, Song, Jae Hyung, Lee, Sang Hyup, Song, Young Hun
• Primary Examiner(s): Hirl; Joseph P
• Assistant Examiner(s): HSIUNGFEI, PENG
• Application Number:
  US12/197,964
• Publication Number:
  US 20090055866A1
• Time in Patent Office: 1,163 Days
• Field of Search: None
• US Class Current: 725/62
• CPC Class Codes: H04H 20/28 Arrangements for simultaneous broadcast of plural pieces of information
• CPC Class Codes: H04H 20/33 by plural channels
• CPC Class Codes: H04H 20/93 which locates resources of other pieces of information, e.g. URL [Uniform Resource Locator]
• CPC Class Codes: H04H 60/73 using meta-information
• CPC Class Codes: H04L 1/0047 Decoding adapted to other signal detection operation in conjunction with sequence estimation or equalization H04L25/03286
• CPC Class Codes: H04L 1/0072 Error control for data other than payload data, e.g. control data
• CPC Class Codes: H04L 1/0083 Formatting with frames or packets; Protocol or part of protocol for error control
• CPC Class Codes: H04L 12/18 for broadcast or conference , e.g. multicast
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint
• CPC Class Codes: H04N 21/2343 involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements video transcoding H04N19/40; media packet handling at the source H04L65/762
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/23614 Multiplexing of additional data and video streams arrangements for simultaneous broadcast of plural pieces of information H04H20/28
• CPC Class Codes: H04N 21/2362 Generation or processing of Service Information [SI]
• CPC Class Codes: H04N 21/26241 involving the time of distribution, e.g. the best time of the day for inserting an advertisement or airing a children program
• 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 21/4622 Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet web site content organization and management for information retrieval from the Internet G06F16/958; transmission by internet of broadcast information H04H60/82; stock exchange data over packet-switching network H04L12/1804; push services including data channel over packet-switching network H04L12/1859
• CPC Class Codes: H04N 21/6131 involving transmission via a mobile phone network wireless downlink channel access H04W74/006
• CPC Class Codes: H04N 21/64322 : IP
• CPC Class Codes: H04N 21/8586 : by using a URL processing chained hypermedia data for information retrieval G06F16/94; information retrieval from the Internet by using URLs G06F16/955; URL in broadcast information H04H20/93; Web-based protocols H04L67/02
• 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 Internet access information corresponding to the mobile service data by using the acquired program table, and a controller for controlling such that the Internet access information 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 access information of the mobile service data, regularly spaced 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, wherein the information for rapid mobile service acquisition includes transport stream identification information identifying the broadcast signal, and wherein the TPC data includes FIC version information for indicating an update of the FIC data and RS frame mode information for indicating a single frame mode or a dual frame mode;

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 mobile service data and the signaling information table are packaged into at least one RS frame, wherein the at least one RS frame is mapped into a plurality of groups, wherein the FIC data comprises a plurality of FIC segments, each of the FIC segments comprising a 2-byte segment header including type information and a 35-byte segment payload including a portion of the FIC data.

2. The method of claim 1, wherein each of the groups comprises a region A, a region B, a region C, and a region D, and wherein, if the RS frame mode information indicates the single frame mode, the at least one RS frame is received through the region A, the region B, the region C, and the region D of each group.

3. The method of claim 2, wherein, if the RS frame mode information indicates the dual frame mode, the at least one RS frame is received through the region A and the region B of each group or through the region C and the region D of each group.

4. The method of claim 1, wherein the type information indicates a type of data carried in the FIC segment.

5. The method of claim 1, wherein the segment header further includes error indication information indicating whether the FIC segment contains an error.

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

7. 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.

8. A broadcast receiver comprising:

a tuner for receiving a broadcast signal, the broadcast signal comprising mobile service data, a signaling information table including access information of the mobile service data, regularly spaced 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, wherein the information for rapid mobile service acquisition includes transport stream identification information identifying the broadcast signal, and wherein the TPC data includes FIC version information for indicating an update of the FIC data and RS frame mode information for indicating a single frame mode or a dual frame mode;

a demodulator for demodulating the received broadcast signal;

a first handler for obtaining the signaling information table from the demodulated broadcast signal; and

a second handler for obtaining an IP datagram of the mobile service data using the signaling information table,

wherein the mobile service data and the signaling information table are packaged into at least one RS frame, wherein the at least one RS frame is mapped into a plurality of groups, wherein the FIC data comprises a plurality of FIC segments, each of the FIC segments comprising a 2-byte segment header including type information and a 35-byte segment payload including a portion of the FIC data.

9. The broadcast receiver of claim 8, wherein each of the groups comprises a region A, a region B, a region C, and a region D, and wherein, if the RS frame mode information indicates the single frame mode, the at least one RS frame is received through the region A, the region B, the region C, and the region D of each group.

10. The broadcast receiver of claim 9, wherein, if the RS frame mode information indicates the dual frame mode, the at least one RS frame is received through the region A and the region B of each group or through the region C and the region D of each group.

11. The broadcast receiver of claim 8, wherein the type information indicates a type of data carried in the FIC segment.

12. The broadcast receiver of claim 8, wherein the segment header further includes error indication information indicating whether the FIC segment contains an error.

13. The broadcast receiver of claim 8, wherein at least two of the known data sequences are spaced 16 segments apart and have different lengths.

14. The broadcast receiver of claim 8, 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.

15. 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 and a signaling information table including access information of the mobile service data, thereby packaging the mobile service data and the signaling information table into at least one RS frame;

mapping the at least one RS frame into a plurality of groups, wherein each of the groups includes a portion of data included in a corresponding RS frame, regularly spaced 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, wherein the information for rapid mobile service acquisition includes transport stream identification information identifying a broadcast signal, and wherein the TPC data includes FIC version information for indicating an update of the FIC data and RS frame mode information for indicating a single frame mode or a dual frame mode; and

transmitting the broadcast signal including the plurality of groups,

wherein the FIC data comprises a plurality of FIC segments, each of the FIC segments comprising a 2-byte segment header including type information and a 35-byte segment payload including a portion of the FIC data.

16. The method of claim 15, wherein each of the groups comprises a region A, a region B, a region C, and a region D, and wherein, if the RS frame mode information indicates the single frame mode, the at least one RS frame is carried through the region A, the region B, the region C, and the region D of each group.

17. The method of claim 16, wherein, if the RS frame mode information indicates the dual frame mode, the at least one RS frame is carried through the region A and the region B of each group or through the region C and the region D of each group.

18. The method of claim 15, wherein the type information indicates a type of data carried in the FIC segment.

19. The method of claim 15, wherein the segment header further includes error indication information indicating whether the FIC segment contains an error.

20. The method of claim 15, wherein at least two of the known data sequences are spaced 16 segments apart and have different lengths.

21. The method of claim 15, 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.

22. A broadcast transmitter comprising:

an RS encoder for performing Reed Solomon (RS) encoding and Cyclic Redundancy Check (CRC) encoding on mobile service data and a signaling information table including access information of the mobile service data, thereby packaging the mobile service data and the signaling information table into at least one RS frame;

a group formatting means for mapping the at least one RS frame into a plurality of groups, wherein each of the groups includes a portion of data included in a corresponding RS frame, regularly spaced 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, wherein the information for rapid mobile service acquisition includes transport stream identification information identifying a broadcast signal, and wherein the TPC data includes FIC version information for indicating an update of the FIC data and RS frame mode information for indicating a single frame mode or a dual frame mode; and

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

wherein the FIC data comprises a plurality of FIC segments, each of the FIC segments comprising a 2-byte segment header including type information and a 35-byte segment payload including a portion of the FIC data.

23. The broadcast transmitter of claim 22, wherein each of the groups comprises a region A, a region B, a region C, and a region D, and wherein, if the RS frame mode information indicates the single frame mode, the at least one RS frame is carried through the region A, the region B, the region C, and the region D of each group.

24. The broadcast transmitter of claim 23, wherein, if the RS frame mode information indicates the dual frame mode, the at least one RS frame is carried through the region A and the region B of each group or through the region C and the region D of each group.

25. The broadcast transmitter of claim 22, wherein the type information indicates a type of data carried in the FIC segment.

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

27. The broadcast transmitter of claim 22, wherein at least two of the known data sequences are spaced 16 segments apart and have different lengths.

28. The broadcast transmitter of claim 22, 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.