Digital broadcasting system and data processing method

• US 8,069,462 B2
• Filed: 09/22/2008
• Issued: 11/29/2011
• Est. Priority Date: 09/21/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Suh, Jong Yeul, Choi, In Hwan, Lee, Chul Soo, Kim, Jin Pil, Song, Jae Hyung
• Primary Examiner(s): Kumar; Pankaj
• Assistant Examiner(s): Baig; Sahar A
• Application Number:
  US12/234,855
• Publication Number:
  US 20090083785A1
• Time in Patent Office: 1,163 Days
• Field of Search: 725/28, 725/39, 725/62, 725/148, 725/151, 375/316
• US Class Current: 725/62
• CPC Class Codes: H04H 20/30 by a single channel
• CPC Class Codes: H04H 20/55 for traffic information
• CPC Class Codes: H04H 20/57 for mobile receivers
• CPC Class Codes: H04H 2201/80 characterised in that motion picture association of America [MPAA] ratings are used

Abstract

A digital broadcasting system and method of processing data therein are disclosed. A receiving system of the digital broadcasting system includes a baseband processor unit 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 and at least one signaling information data describing rating information of the mobile service data, a management processor unit obtaining the rating information of the mobile service data by parsing the signaling information data from the RS frame, the management processor unit determining a presence or non-presence of a viewing restriction by comparing the obtained rating information of the mobile service data to viewing restriction rating information set by a user, and a presentation processor unit blocking the mobile service data if the viewing restriction of the mobile service data is determined.

Claims

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

receiving a broadcast signal, the broadcast signal comprising fast information channel (FIC) data, transmission parameter channel (TPC) data, mobile service data, and signaling information data describing rating information of the mobile service 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;

building a Reed-Solomon (RS) frame including the mobile service data of the demodulated broadcast signal, the RS frame belonging to an ensemble, the ensemble including the signaling information data; and

obtaining the signaling information data from the ensemble,

wherein the signaling information data is delivered through a mobile and handheld (M/H) service signaling channel (SSC), and

wherein Internet Protocol (IP) datagrams carried through the M/H SSC have a well-known IP address and a well-known User Datagram Protocol (UDP) port number.

2. The method of claim 1, wherein obtaining the signaling information data comprises:

obtaining the rating information of the mobile service data from the signaling information data;

comparing the obtained rating information of the mobile service data to viewing restriction rating information set by a user; and

determining a presence or non-presence of a viewing restriction of the mobile service data.

3. The method of claim 2, further comprising determining a display of the mobile service data by blocking the mobile service data if the presence of the viewing restriction of the mobile service data is determined.

4. The method of claim 1, wherein the signaling information data includes a rating region table (RRT) describing rating classification information of the mobile service data and a content advisory descriptor (CAD) describing the rating information on the corresponding mobile service data.

5. The method of claim 4, wherein each of the rating region table (RRT) and the content advisory descriptor (CAD) includes rating level tag information for identifying a corresponding rating level uniquely.

6. The method of claim 5, further comprising:

determining a presence or non-presence of a viewing restriction of the mobile service data by referring to the rating level tag information of the corresponding mobile service data obtained from the rating region table (RRT) and the content advisory descriptor (CAD).

7. The method of claim 1, wherein the RS frame is mapped into a plurality of groups, each of the plurality of groups including a portion of data included in the RS frame, the FIC data, the TPC data and a plurality of known data sequences.

8. The method of claim 7, wherein the FIC data and the TPC data are inserted between a first known data sequence and a second known data sequence among the plurality of known data sequences.

9. A broadcast receiver comprising:

a tuner for receiving a broadcast signal, the broadcast signal comprising fast information channel (FIC) data, transmission parameter channel (TPC) data, mobile service data, and signaling information data describing rating information of the mobile service 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;

a Reed-Solomon (RS) frame decoder for building an RS frame including the mobile service data of the demodulated broadcast signal, the RS frame belonging to an ensemble, the ensemble including the signaling information data; and

a handler for obtaining the signaling information data from the ensemble,

wherein the signaling information data is delivered through a mobile and handheld (M/H) service signaling channel (SSC), and

wherein Internet Protocol (IP) datagrams carried through the M/H SSC have a well-known IP address and a well-known User Data Protocol (UDP) port number.

10. The broadcast receiver of claim 9, wherein the handler obtains the rating information of the mobile service data from the signaling information data, compares the obtained rating information of the mobile service data to viewing restriction rating information set by a user, and determines a presence or non-presence of a viewing restriction of the mobile service data.

11. The broadcast receiver of claim 10, wherein the handler determines a display of the mobile service data and blocks the mobile service data if the presence of the viewing restriction of the mobile service data is determined.

12. The broadcast receiver of claim 9, wherein the signaling information data includes a rating region table (RRT) describing rating classification information of the mobile service data and a content advisory descriptor (CAD) describing the rating information on the corresponding mobile service data.

13. The broadcast receiver of claim 12, wherein each of the rating region table (RRT) and the content advisory descriptor (CAD) includes rating level tag information for identifying a corresponding rating level uniquely.

14. The broadcast receiver of claim 13, wherein the receiver determines a presence or non-presence of a viewing restriction of the mobile service data by referring to the rating level tag information of the corresponding mobile service data obtained from the rating region table (RRT) and the content advisory descriptor (CAD).

15. The broadcast receiver of claim 9, wherein the the RS frame is mapped into a plurality of groups, each of the plurality of groups including a portion of data included in the RS frame, the FIC data, the TPC data and a plurality of known data sequences.

16. The broadcast receiver of claim 15, wherein the FIC data and the TPC data are inserted between a first known data sequence and a second known data sequence among the plurality of known data sequences.