Digital broadcasting receiver and method for controlling the same

• US 9,402,091 B2
• Filed: 10/30/2014
• Issued: 07/26/2016
• Est. Priority Date: 09/21/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Park, Sang Kil, Choi, In Hwan, Song, Jae Hyung, Lee, Chul Soo
• Primary Examiner(s): FLYNN, RANDY A
• Application Number:
  US14/529,037
• Publication Number:
  US 20150058879A1
• Time in Patent Office: 635 Days
• US Class Current: 1/1
• 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: H04L 9/30 Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
• CPC Class Codes: H04N 21/2347 involving video stream encryption
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/23605 Creation or processing of packetized elementary streams [PES]
• CPC Class Codes: H04N 21/23611 Insertion of stuffing data into a multiplex stream, e.g. to obtain a constant bitrate synchronisation arrangements in time-division multiplex systems using bit stuffing for systems with different or fluctuating information rates H04J3/073
• 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 21/2383 Channel coding or modulation of digital bit-stream, e.g. QPSK modulation arrangements for detecting or preventing errors in the information received by adapting the channel coding H04L1/0009; analogue front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/26603 for automatically generating descriptors from content, e.g. when it is not made available by its provider, using content analysis techniques
• CPC Class Codes: H04N 21/6131 involving transmission via a mobile phone network wireless downlink channel access H04W74/006
• CPC Class Codes: H04N 21/8126 involving additional data, e.g. news, sports, stocks, weather forecasts

Abstract

A method of processing broadcast data includes: performing RS encoding and CRC encoding on mobile service data to generate an RS frame belonging to an ensemble including a signaling information table including access information of the mobile service data and identification information for identifying a stream where keys to decrypt the mobile service data are obtained; mapping a portion of data in the RS frame to a group including known data sequences, FIC data, and TPC data, wherein the FIC data includes information for rapid mobile service acquisition, and the TPC data includes FIC version information for indicating an update of the FIC data; and transmitting a broadcast signal including the group. The group further includes data blocks. First, fourth, fifth and sixth known data sequences are inserted into third, fifth, sixth and seventh data blocks, respectively. Second and third known data sequences are inserted into a fourth data block.

Claims

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

encoding broadcast service data for a broadcast service included in data units;

inserting known data into the encoded broadcast service data, wherein the known data is to be used for channel estimation in a broadcast receiver; and

transmitting a broadcast signal including the encoded broadcast service data into which the known data were inserted,

wherein each of the data units includes a header and a payload,

wherein the header includes stuffing indication information indicating whether stuffing data are included in the corresponding data unit,

wherein the payload includes the broadcast service data,

wherein the broadcast signal further includes signaling information carried in a payload of IP (Internet Protocol) packets with a well-known address and a well-known port number, and

wherein the signaling information includes information for indicating whether the broadcast service is hidden and an address and a port number for the broadcast service data.

2. The method of claim 1, wherein the signaling information further includes identification information for identifying the broadcast service.

3. The method of claim 1, wherein each of the data units further includes length indication information for indicating a length of the stuffing data when the stuffing indication information indicates that the stuffing data are included in the corresponding data unit.

4. The method of claim 2, wherein the broadcast service data are encrypted.

5. The method of claim 4, wherein the signaling information further includes encryption information related to the broadcast service data.

6. A broadcast transmitter for processing data, the broadcast transmitter comprising:

an encoder to encode broadcast service data for a broadcast service included in data units;

an inserter to insert known data into the encoded broadcast service data, the known data to be used for channel estimation in a broadcast receiver; and

a transmitter to transmit a broadcast signal including the encoded broadcast service data into which the known data were inserted,

wherein each of the data units includes a header and a payload,

wherein the header includes stuffing indication information indicating whether stuffing data are included in the corresponding data unit,

wherein the payload includes the broadcast service data,

wherein the broadcast signal further includes signaling information carried in a payload of IP (Internet Protocol) packets with a well-known address and a well-known port number, and

wherein the signaling information includes information for indicating whether the broadcast service is hidden and an address and a port number for the broadcast service data.

7. The broadcast transmitter of claim 6, wherein the signaling information further includes identification information for identifying the broadcast service.

8. The broadcast transmitter of claim 6, wherein each of the data units further includes length indication information for indicating a length of the stuffing data when the stuffing indication information indicates that the stuffing data are included in the corresponding data unit.

9. The broadcast transmitter of claim 7, wherein the broadcast service data is encrypted.

10. The broadcast transmitter of claim 9, wherein the signaling information further includes encryption information related to the broadcast service data.