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

• US 7,982,808 B2
• Filed: 06/28/2010
• Issued: 07/19/2011
• 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, Hong, Sung Ryong
• Primary Examiner(s): Natnael; Paulos M
• Application Number:
  US12/825,259
• Publication Number:
  US 20100322344A1
• Time in Patent Office: 386 Days
• Field of Search: 348/723, 348/725, 348/722, 348/729, 348/731, 348/732, 348/553, 348/470, 348/552, 725/38, 725/39, 725/25, 725/62, 725/114, 725/138, 725/148, 372/240.27, 372/240.26, 372/204.25
• US Class Current: 348/725
• 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 21/434 Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream demultiplexing of data packets for data networks, e.g. RTP/UDP H04L65/00
• 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

Abstract

A digital broadcast receiving system and a method for controlling the same are disclosed. The method includes the steps of receiving a broadcast signal having mobile service data and main service data multiplexed therein, extracting transmission parameter channel (TPC) signaling information and fast information channel (FIC) signaling information from a data group within the received mobile service data, wherein the FIC signaling information includes a current/next (C/N) indicator, and wherein the TPC signaling information includes FIC version information, and detecting ensemble configuration information of a current MH frame.

Claims

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

receiving a broadcast signal comprising mobile service data, fast information channel (FIC) data, transmission parameter channel (TPC) data, a plurality of known data sequences, and a signaling information table including access information of the mobile service data, the FIC data including a current and next (C/N) indicator field, the TPC data including FIC version information for indicating an update of the FIC data, and a portion of the FIC data and the TPC data being positioned between a first known data sequence and a second known data sequence of the plurality of known data sequences within a group;

decoding the FIC data and the TPC data from the broadcast signal; and

detecting the C/N indicator field indicating whether the decoded FIC data is applicable to a mobile and handheld (M/H) frame in which it appears or a next mobile and handheld (M/H) frame from the decoded FIC data.

2. The method of claim 1, wherein the FIC data is divided into a plurality of FIC segment payloads, wherein a size of each FIC segment payload is 35 bytes, and wherein the group includes an FIC segment, the FIC segment comprising a 2-byte FIC segment header including FIC type information and one of the FIC segment payloads.

3. The method of claim 1, further comprising detecting the plurality of known data sequences from the broadcast signal.

4. The method of claim 3, further comprising channel-equalizing the received mobile service data using at least one of the detected plurality of known data sequences.

5. The method of claim 1, further comprising accessing to the mobile service data based upon the access information of the signaling information table.

6. A broadcast receiver comprising:

a tuner for receiving a broadcast signal comprising mobile service data, fast information channel (FIC) data, transmission parameter channel (TPC) data, a plurality of known data sequences, and a signaling information table including access information of the mobile service data, the FIC data including a current and next (C/N) indicator field, the TPC data including FIC version information for indicating an update of the FIC data, and a portion of the FIC data and the TPC data being positioned between a first known data sequence and a second known data sequence of the plurality of known data sequences within a group;

a decoder for decoding the FIC data and the TPC data from the broadcast signal; and

a first handler for detecting the C/N indicator field indicating whether the decoded FIC data is applicable to a mobile and handheld (M/H) frame in which it appears or a next mobile and handheld (M/H) frame from the decoded FIC data.

7. The broadcast receiver of claim 6, wherein the FIC data is divided into a plurality of FIC segment payloads, wherein a size of each FIC segment payload is 35 bytes, and wherein the group includes an FIC segment, the FIC segment comprising a 2-byte FIC segment header including FIC type information and one of the FIC segment payloads.

8. The broadcast receiver of claim 6, further comprising a known data detector for detecting the plurality of known data sequences from the broadcast signal.

9. The broadcast receiver of claim 8, further comprising a channel equalizer for channel-equalizing the received mobile service data using at least one of the detected plurality of known data sequences.

10. The broadcast receiver of claim 6, further comprising a second handler for accessing to the mobile service data based upon the access information of the signaling information table.

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 including access information of the mobile service data;

inserting the RS-encoded and CRC-encoded mobile service data and signaling information table in at least one group, wherein each group further includes a portion of fast information channel (FIC) data, transmission parameter channel (TPC) data, a plurality of known data sequences, wherein the FIC data includes a current and next (C/N) indicator field indicating whether the FIC data is applicable to a mobile and handheld (M/H) frame in which it appears or a next mobile and handheld (M/H) frame, wherein the TPC data includes FIC version information for indicating an update of the FIC data, and wherein the portion of the FIC data and the TPC data are positioned between a first known data sequence and a second known data sequence of the plurality of known data sequences; and

transmitting a broadcast signal including the at least one group.

12. The method of claim 11, wherein the FIC data is divided into a plurality of FIC segment payloads, wherein a size of each FIC segment payload is 35 bytes, and wherein the group includes an FIC segment, the FIC segment comprising a 2-byte FIC segment header including FIC type information and one of the FIC segment payloads.

13. A broadcast transmitter comprising:

a Reed-Solomon (RS) encoder for performing 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;

a group formatting means for inserting the RS-encoded and CRC-encoded mobile service data and signaling information table in at least one group, wherein each group further includes a portion of fast information channel (FIC) data, transmission parameter channel (TPC) data, a plurality of known data sequences, wherein the FIC data includes a current and next (C/N) indicator field indicating whether the FIC data is applicable to a mobile and handheld (M/H) frame in which it appears or a next mobile and handheld (M/H) frame, wherein the TPC data includes FIC version information for indicating an update of the FIC data, and wherein the portion of the FIC data and the TPC data are positioned between a first known data sequence and a second known data sequence of the plurality of known data sequences; and

a transmitting means for transmitting a broadcast signal including the at least one group.

14. The broadcast transmitter of claim 13, wherein the FIC data is divided into a plurality of FIC segment payloads, wherein a size of each FIC segment payload is 35 bytes, and wherein the group includes an FIC segment, the FIC segment comprising a 2-byte FIC segment header including FIC type information and one of the FIC segment payloads.