DIGITAL BROADCASTING SYSTEM AND METHOD OF PROCESSING DATA IN THE DIGITAL BROADCASTING SYSTEM

• US 20090052583A1
• Filed: 08/25/2008
• Published: 02/26/2009
• Est. Priority Date: 08/24/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Choi, In Hwan, Lee, Chul Soo, Song, Jae Hyung, Kim, Jeong Woo, Shin, Pil Sup
• Granted Patent: US 8,175,065 B2
• Time in Patent Office: Days
• US Class Current: 375/321
• 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

Abstract

A digital broadcast system and data processing method therein are disclosed. A receiving system of the digital broadcast system includes a baseband processor, a table handler, a DSM-CC handler, and a display module. The baseband processor receives a broadcast signal including mobile service data and main service data. The mobile service data configures an RS frame, and the RS frame includes the mobile service data, DSM-CC (digital storage media-command and control) data and a table describing at least one channel configuration information on the mobile service data and signaling information of the DSM-CC data. The table handler extracts the at least one channel configuration information on the mobile service data and the signaling information of the DSM-CC data by parsing the table from the RS frame. The DSM-CC handler parses the DSM-CC data from the RS frame based on the extracted signaling information of the DSM-CC data. The DSM-CC handler stores the parsed DSM-CC data. The DSM-CC handler extracts a download estimated time from the DSM-CC data, and outputs the extracted download estimated time. The display module displays the download estimated time of the DSM-CC data outputted from the DSM-CC handler on a prescribed portion of a screen.

Claims

1. A receiving system comprising:

a baseband processor receiving a broadcast signal including mobile service data and main service data, the mobile service data configuring an RS frame, the RS frame including the mobile service data, DSM-CC (digital storage media-command and control) data and a table describing at least one channel configuration information on the mobile service data and signaling information of the DSM-CC data;

a table handler extracting the at least one channel configuration information on the mobile service data and the signaling information of the DSM-CC data by parsing the table from the RS frame;

a DSM-CC handler parsing the DSM-CC data from the RS frame based on the extracted signaling information of the DSM-CC data, the DSM-CC handler storing the parsed DSM-CC data, the DSM-CC handler extracting a download estimated time from the DSM-CC data, the DSM-CC handler outputting the extracted download estimated time; and

a display module displaying the download estimated time of the DSM-CC data outputted from the DSM-CC handler on a prescribed portion of a screen.

2. The receiving system of claim 1, wherein at least one data group configuring the RS frame includes a plurality of known data sequences, wherein a signaling information area is included between a first known data sequence and a second known data sequence among a plurality of the known data sequences, and wherein the signaling information area includes transmission parameter channel (TPC) signaling and fast information channel (FIC) signaling.

3. The receiving system of claim 2, wherein the baseband processor further includes a known data detecting unit detecting the known data sequence included in the data group and wherein the detected known data sequence is used for demodulation of the mobile service data and channel equalization.

4. The receiving system of claim 1, wherein the signaling information of the DSM-CC data is received by being included as a descriptor in a service map table (SMT).

5. The receiving system of claim 4, wherein the signaling information includes at least one selected from the group consisting of stream type information, data broadcast identification information, carousel identification information, application identification information, transaction identification information, DSI (DownloadServerInitiate) time-out information and DII (DownloadInfoIndication) time-out information.

6. The receiving system of claim 1, wherein the DSM-CC handler parses a DSI (DownloadServerInitiate) message delivering information on a DSM-CC group from the DSM-CC data, extracts a download estimated time of a corresponding DSM-CC group from the parsed DSI message, and then outputs the extracted download estimated time.

7. The receiving system of claim 1, wherein the DSM-CC handler parses a DII (DownloadServerIndication) message delivering information on a DSM-CC module from the DSM-CC data, extracts a download estimated time of a corresponding DSM-CC module from the parsed DII message, and then outputs the extracted download estimated time.

8. The receiving system of claim 7, wherein the DSM-CC handler extracts error detection information from the DII message and then performs error correction on the corresponding SM-CC module.

9. A method of processing data in a receiving system, comprising the steps of:

receiving a broadcast signal including mobile service data and main service data, the mobile service data configuring an RS frame, the RS frame including the mobile service data, DSM-CC (digital storage media-command and control) data and a table describing at least one channel configuration information on the mobile service data and signaling information of the DSM-CC data;

extracting the at least one channel configuration information on the mobile service data and the signaling information of the DSM-CC data by parsing the table from the RS frame;

parsing the DSM-CC data from the RS frame based on the extracted signaling information of the DSM-CC data, storing the parsed DSM-CC data, extracting a download estimated time from the DSM-CC data, outputting the extracted download estimated time; and

displaying the download estimated time of the DSM-CC data on a prescribed portion of a screen.

10. The method of claim 9, wherein at least one data group configuring the RS frame includes a plurality of known data sequences, wherein a signaling information area is included between a first known data sequence and a second known data sequence among a plurality of the known data sequences, and wherein the signaling information area includes transmission parameter channel (TPC) signaling and fast information channel (FIC) signaling.

11. The method of claim 9, wherein the signaling information of the DSM-CC data is received by being included as a descriptor in a service map table (SMT).

12. The method of claim 11, wherein the signaling information includes at least one selected from the group consisting of stream type information, data broadcast identification information, carousel identification information, application identification information, transaction identification information, DSI (DownloadServerInitiate) time-out information and DII (DownloadInfoIndication) time-out information.

13. The method of claim 9, the download estimated time extracting step comprising the steps of:

parsing a DSI (DownloadServerInitiate) message delivering information on a DSM-CC group from the DSM-CC data; and

extracting the download estimated time of a corresponding DSM-CC group from the parsed DSI message.

14. The method of claim 9, the download estimated time extracting step comprising the steps of:

parsing a DII (DownloadServerIndication) message delivering information on a DSM-CC module from the DSM-CC data; and

extracting the download estimated time of a corresponding DSM-CC module from the parsed DII message.