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

• US 8,776,143 B2
• Filed: 08/22/2008
• Issued: 07/08/2014
• 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: Yoo, Hui Sang, Choi, In Hwan, Lee, Chul Soo, Song, Jae Hyung, Shin, Pil Sup
• Primary Examiner(s): Goodarzi, Nasser
• Assistant Examiner(s): Peng, Fred
• Application Number:
  US12/197,170
• Publication Number:
  US 20090055885A1
• Time in Patent Office: 2,146 Days
• Field of Search: None
• US Class Current: 725/62
• CPC Class Codes: H03M 13/251 with block coding
• CPC Class Codes: H03M 13/2936 comprising an outer Reed-Solomon code and an inner convolutional code
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/0045 Arrangements at the receiver end
• CPC Class Codes: H04L 1/0057 Block codes H04L1/0061, H04L1/0064 take precedence
• CPC Class Codes: H04L 1/006 Trellis-coded modulation
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 2025/03382 Single of vestigal sideband
• CPC Class Codes: H04L 27/04 Modulator circuits; Transmitter circuits
• CPC Class Codes: H04L 65/611 for multicast or broadcast systems for broadcast or conference H04L12/18; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time H04H60/00; selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS], H04W4/06
• 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 21/41407 embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop constructional details of equipment or arrangements specially adapted for portable computer application G06F1/1626; arrangements specially adapted for mobile receivers in broadcast systems H04H20/57
• 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 21/47 End-user applications
• CPC Class Codes: H04N 21/6131 involving transmission via a mobile phone network wireless downlink channel access H04W74/006
• CPC Class Codes: H04N 5/38 Transmitter circuitry for the transmission of television signals according to analogue transmission standards H04N5/14 takes precedence
• CPC Class Codes: H04N 5/40 : Modulation circuits
• CPC Class Codes: H04N 5/50 : Tuning indicators; Automatic tuning control
• CPC Class Codes: H04N 7/52 : Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal assembling of a multiplex stream by combining a video stream with other content or additional data, remultiplexing of multiplex streams, insertion of stuffing bits into the multiplex stream, assembling of a packetised elementary stream at server side H04N21/236; disassembling of a multiplex stream, remultiplexing of multiplex streams, extraction or processing of Service Information, disassembling of packetised elementary stream at client side H04N21/434

Abstract

The present invention provides a data processing method, the data processing method including receiving a broadcasting signal where mobile service data are multiplexed with main service data, extracting transmission-parameter-channel signaling information and fast-information-channel signaling information from a data group within the received mobile service data, parsing first program table information describing virtual channel information of an ensemble and a service provided by the ensemble using the fast-information-channel signaling information, the ensemble corresponding to a virtual channel group of the received mobile service data, obtaining information representing that second program table information, which includes a descriptor describing event information of the mobile service data, is received, from the first program table information, parsing the second program table information, and storing the event information and displaying service guide information including the event information.

Claims

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

receiving a broadcast signal comprising mobile service data, known data sequences, fast information channel (FIC) data, transmission parameter channel (TPC) data, and a signaling information table that includes access information of the mobile service data,

wherein the mobile service data and the signaling information table are packaged into at least one of a plurality of Reed Solomon (RS) frames belonging to an ensemble, and

wherein the FIC data comprises binding information between mobile services and the ensemble;

demodulating the received broadcast signal;

obtaining the FIC data for selection of the ensemble from the demodulated broadcast signal;

building the at least one of the plurality of RS frames which belong to the ensemble using the demodulated broadcast signal;

obtaining the signaling information table from the at least one of the plurality of RS frames; and

processing the mobile service data based on the access information,

wherein the ensemble includes a service map table providing service acquisition information for mobile services included in the ensemble,

wherein the service map table includes an audio component descriptor describing an audio stream component of a mobile service,

wherein the audio component descriptor includes;

sampling rate information identifying an output sampling rate of the audio stream component; and

audio channel number information identifying a number of audio channels,

wherein the TPC data comprises FIC version information for indicating an update of the FIC data,

wherein the FIC data is divided into a number of delivery units,

wherein one of the number of delivery units is packed into an FIC segment for transmission, the FIC segment including an FIC segment header and an FIC segment payload,

wherein the FIC segment header includes;

segment number information indicating a numbering of the FIC segment among FIC segments of the FIC data;

last segment number information indicating a numbering of a last FIC segment of the FIC data; and

type information indicating a type of data carried in the FIC segment,

wherein a size of the at least one of the plurality of RS frames is L (rows)×

N (column size of a payload of the RS frame) bytes, each row having an M-byte header leaving the rest of the row available for data,

wherein the data in the rows are packed into the rows end-to-end, with possible wrapping around at the end of each row to the next row, and

wherein L, M, and N are integers.

2. The method of claim 1, wherein the signaling information table further comprises start time information, duration information and title information of the mobile service data.

3. The method of claim 1, wherein at least two of the known data sequences are spaced 16 segments apart and 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 segment header further includes error indication information indicating whether the FIC segment contains an error.

6. A broadcast receiver comprising:

a tuner for receiving a broadcast signal comprising mobile service data, known data sequences, fast information channel (FIC) data, transmission parameter channel (TPC) data, and a signaling information table that includes access information of the mobile service data,

wherein the mobile service data and the signaling information table are packaged into at least one of a plurality of Reed Solomon (RS) frames belonging to an ensemble, and

wherein the FIC data comprises binding information between mobile services and the ensemble;

a demodulator for demodulating the received broadcast signal;

a first handler for obtaining the FIC data for selection of the ensemble from the demodulated broadcast signal;

a second handler for building the at least one of the plurality of RS frames which belong to the ensemble using the demodulated broadcast signal;

a third handler for obtaining the signaling information table from the at least one of the plurality of RS frames; and

a processor for processing the mobile service data based on the access information,

wherein the ensemble includes a service map table providing service acquisition information for mobile services included in the ensemble,

wherein the service map table includes an audio component descriptor describing an audio stream component of a mobile service,

wherein the audio component descriptor includes;

sampling rate information identifying an output sampling rate of the audio stream component; and

audio channel number information identifying a number of audio channels,

wherein the TPC data comprises FIC version information for indicating an update of the FIC data,

wherein the FIC data is divided into a number of delivery units,

wherein one of the number of delivery units is packed into an FIC segment for transmission, the FIC segment including an FIC segment header and an FIC segment payload,

wherein the FIC segment header includes;

segment number information indicating a numbering of the FIC segment among FIC segments of the FIC data;

last segment number information indicating a numbering of a last FIC segment of the FIC data; and

type information indicating a type of data carried in the FIC segment,

wherein a size of the at least one of the plurality of RS frames is L (rows)×

N (column size of a payload of the RS frame) bytes, each row having an M-byte header leaving the rest of the row available for data,

wherein the data in the rows are packed into the rows end-to-end, with possible wrapping around at the end of each row to the next row, and

wherein L, M, and N are integers.

7. The broadcast receiver of claim 6, wherein the signaling information table further includes start time information, duration information and title information of the mobile service data.

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

9. The broadcast receiver of claim 6, 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.

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

11. 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 that comprises access information of the mobile service data, in order to package the mobile service data and the signaling information table into at least one of a plurality RS frames belonging to an ensemble;

mapping the at least one of the plurality of RS frames into a plurality of groups, wherein each of the plurality of groups comprises a portion of data included in a corresponding one of the plurality of RS frames, known data sequences, a fast information channel (FIC) segment, and transmission parameter channel (TPC) data,

wherein the FIC data comprises binding information between mobile services and the ensemble; and

transmitting a broadcast signal comprising the plurality of groups,

wherein the ensemble includes a service map table providing service acquisition information for mobile services included in the ensemble,

wherein the service map table includes an audio component descriptor describing an audio stream component of a mobile service,

wherein the audio component descriptor includes;

sampling rate information identifying an output sampling rate of the audio stream component; and

audio channel number information identifying a number of audio channels,

wherein the TPC data comprises FIC version information for indicating an update of the FIC data,

wherein the FIC data is divided into a number of delivery units,

wherein one of the number of delivery units is packed into an FIC segment for transmission, the FIC segment including an FIC segment header and an FIC segment payload,

wherein the FIC segment header includes;

segment number information indicating a numbering of the FIC segment among FIC segments of the FIC data;

last segment number information indicating a numbering of a last FIC segment of the FIC data; and

type information indicating a type of data carried in the FIC segment,

wherein a size of the at least one of the plurality of RS frames is L (rows)×

N (column size of a payload of the RS frame) bytes, each row having an M-byte header leaving the rest of the row available for data,

wherein the data in the rows are packed into the rows end-to-end, with possible wrapping around at the end of each row to the next row, and

wherein L, M, and N are integers.

12. The method of claim 11, wherein the signaling information table further comprises start time information, duration information and title information of the mobile service data.

13. The method of claim 11, wherein at least two of the known data sequences are spaced 16 segments apart and have different lengths.

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

16. 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 that comprises access information of the mobile service data, in order to package the mobile service data and the signaling information table into at least one of a plurality of RS frames belonging to an ensemble;

a group formatting means for mapping the at least one of the plurality of RS frames into a plurality of groups, wherein each of the plurality of groups comprises a portion of data included in a corresponding one of the plurality of RS frames, known data sequences, a fast information channel (FIC) segment, and transmission parameter channel (TPC) data,

wherein the FIC data comprises binding information between mobile services and the ensemble; and

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

wherein the ensemble includes a service map table providing service acquisition information for mobile services included in the ensemble,

wherein the service map table includes an audio component descriptor describing an audio stream component of a mobile service,

wherein the audio component descriptor includes;

sampling rate information identifying an output sampling rate of the audio stream component; and

audio channel number information identifying a number of audio channels,

wherein the TPC data comprises FIC version information for indicating an update of the FIC data,

wherein the FIC data is divided into a number of delivery units,

wherein one of the number of delivery units is packed into an FIC segment for transmission, the FIC segment including an FIC segment header and an FIC segment payload,

wherein the FIC segment header includes;

segment number information indicating a numbering of the FIC segment among FIC segments of the FIC;

last segment number information indicating a numbering of a last FIC segment of the FIC data; and

type information indicating a type of data carried in the FIC segment,

wherein a size of the at least one of the plurality of RS frames is L (rows)×

N (column size of a payload of the RS frame) bytes, each row having an M-byte header leaving the rest of the row available for data,

wherein the data in the rows are packed into the rows end-to-end, with possible wrapping around at the end of each row to the next row, and

wherein L, M, and N are integers.

17. The broadcast transmitter of claim 16, wherein the signaling information table further comprises start time information, duration information and title information of the mobile service data.

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

19. The broadcast transmitter of claim 16, 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.

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