Digital broadcasting receiver and method for controlling the same

Patent metadata

Field	Value
Publication number	US-9402091-B2
Application number	US-201414529037-A
Country	US
Kind code	B2
Filing date	Oct 30, 2014
Priority date	Sep 21, 2007
Publication date	Jul 26, 2016
Grant date	Jul 26, 2016

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.

First claim

What is claimed is:

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.

Assignees

• Lg Electronics Inc

Inventors

• Park Sang Kil
• Choi In Hwan
• Song Jae Hyung
• Lee Chul Soo

Classifications

• H04N21/26603

  for automatically generating descriptors from content, e.g. when it is not made available by its provider, using content analysis techniques · CPC title

• H04L9/30

  Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy · CPC title

• H04N21/23611

  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 title

• H04N21/2347

  involving video stream encryption · CPC title

• H04N21/23614 Primary

  Multiplexing of additional data and video streams (arrangements for simultaneous broadcast of plural pieces of information H04H20/28) · CPC title