# US 2018/0020249 A1 · Digital broadcasting receiver and method for controlling the same

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- Number: US 2018/0020249 A1
- Document ID: US20180020249A1
- Status: Published application
- Kind: A1
- Application number: 15/666,524
- Filed: 2017-08-01
- Published: 2018-01-18
- Earliest claimed: 2007-09-21
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Sang Kil PARK; In Hwan CHOI; Jae Hyung SONG; Chul Soo LEE
- Web page: https://patentgrep.com/patent/US20180020249A1

## CPC

- H04N 21/23614: {Multiplexing of additional data and video streams (arrangements for simultaneous broadcast of plural pieces of information H04H20/28)}
- H04H 20/30: by a single channel
- H04H 20/55: for traffic information
- H04H 20/57: for mobile receivers
- H04N 21/2347: involving video stream encryption
- H04N 21/235: Processing of additional data, e.g. scrambling of additional data or processing content descriptors
- H04N 21/23605: {Creation or processing of packetized elementary streams [PES]}
- 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)}
- H04N 21/2362: Generation or processing of Service Information [SI]
- 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)
- H04N 21/26603: {for automatically generating descriptors from content, e.g. when it is not made available by its provider, using content analysis techniques}
- H04N 21/6131: {involving transmission via a mobile phone network (wireless downlink channel access H04W74/006)}
- H04N 21/8126: {involving additional data, e.g. news, sports, stocks, weather forecasts}
- H04L 9/30: Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04H: BROADCAST COMMUNICATION (multiplex communication H04J; pictorial communication aspects of broadcast systems H04N)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## 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

### Claim 1

A method of processing data in a broadcast receiver, the method comprising:
receiving a broadcast signal including a transmission frame, the transmission frame including broadcast service data for a broadcast service, physical layer parameters, and signaling information for signaling the broadcast service;
demodulating the received broadcast signal;
decoding the physical layer parameters in the transmission frame of the demodulated broadcast signal; and
decoding the broadcast service data in the transmission frame of the demodulated broadcast signal,
wherein the signaling information includes information indicating whether the broadcast service is hidden, channel information of the broadcast service, and identification information identifying the broadcast service,
wherein the decoded broadcast service data are included in one or more first data packets,
wherein the one or more first data packets are included in a data packet payload of a second data packet,
wherein a data packet header of the second data packet includes information indicating a number of first data packets included in the data packet payload, and
wherein the signaling information is included in a payload of IP (Internet Protocol) packets with a known address and a known port number.

### Claim 2 (depends on 1)

The method of claim 1, wherein the signaling information further includes an address and port number related to the broadcast service.

### Claim 3 (depends on 1)

The method of claim 1, wherein the signaling information further includes type information identifying a type of the broadcast service.

### Claim 4 (depends on 1)

The method of claim 1, further comprising:
decrypting the broadcast service data, wherein the signaling information further includes encryption information of the broadcast service data.

### Claim 5 (depends on 1)

The method of claim 1, wherein the physical layer parameters include information related to the transmission frame.

### Claim 6

A broadcast receiver for processing data, the broadcast receiver comprising:
a tuner to receive a broadcast signal including a transmission frame, the transmission frame including broadcast service data for a broadcast service, physical layer parameters, and signaling information for signaling the broadcast service;
a demodulator to demodulate the received broadcast signal;
a first decoder to decode the physical layer parameters in the transmission frame of the demodulated broadcast signal; and
a second decoder to decode the broadcast service data in the transmission frame of the demodulated broadcast signal,
wherein the signaling information includes information indicating whether the broadcast service is hidden, channel information of the broadcast service, and identification information identifying the broadcast service,
wherein the decoded broadcast service data are included in one or more first data packets,
wherein the one or more first data packets are included in a data packet payload of a second data packet,
wherein a data packet header of the second data packet includes information indicating a number of first data packets included in the data packet payload, and
wherein the signaling information is included in a payload of IP (Internet Protocol) packets with a known address and a known port number.

### Claim 7 (depends on 6)

The broadcast receiver of claim 6, wherein the signaling information further includes an address and port number related to the broadcast service.

### Claim 8 (depends on 6)

The broadcast receiver of claim 6, wherein the signaling information further includes type information identifying a type of the broadcast service.

### Claim 9 (depends on 6)

The broadcast receiver of claim 6, further comprising:
a handler to decrypt the broadcast service data, wherein the signaling information further includes encryption information of the broadcast service data.

### Claim 10 (depends on 6)

The broadcast receiver of claim 6, wherein the physical layer parameters include information related to the transmission frame.
