Apparatus for transmitting broadcast signals, apparatus for receiving broadcast signals, method for transmitting broadcast signals and method for receiving broadcast signals

Patent metadata

Field	Value
Publication number	US-10158449-B2
Application number	US-201815900280-A
Country	US
Kind code	B2
Filing date	Feb 20, 2018
Priority date	Dec 31, 2014
Publication date	Dec 18, 2018
Grant date	Dec 18, 2018

Abstract

A method and apparatus for receiving broadcast signals are discussed. The method includes receiving the broadcast signals; demodulating the received broadcast signals by an Orthogonal Frequency Division Multiplex (OFDM) scheme; obtaining broadcast data from a signal frame in the demodulated broadcast signals, wherein the broadcast data includes video data or audio data, and the broadcast data is carried by only a Data Pipe (DP); decoding the broadcast data; and output-processing the decoded broadcast data to output a data packet, wherein the data packet includes a Transport Stream (TS) packet, wherein a header of the data packet includes first information indicating whether a header deletion is performed in the TS packet, wherein the header of the data packet further includes second information indicating whether a null packet deletion is performed, and wherein when the second information is not a zero value, the null packet is deleted prior to the data packet.

First claim

What is claimed is:

1. A method for receiving broadcast signals, the method comprising:
receiving the broadcast signals;
demodulating the received broadcast signals by an Orthogonal Frequency Division Multiplex (OFDM) scheme;
obtaining broadcast data from a signal frame in the demodulated broadcast signals,
wherein the broadcast data includes video data or audio data, and the broadcast data is earned by only a Data Pipe (DP);
decoding the broadcast data; and
output-processing the decoded broadcast data to output a data packet,
wherein the data packet includes a Transport Stream (FS) packet,
wherein a header of the data packet includes first information indicating whether a header deletion is performed in the TS packet,
wherein the header of the data packet further includes second information indicating whether a null packet deletion is performed, and
wherein when the second information is not a zero value, the null packet is deleted prior to the data packet.

2. The method of claim 1 ,
wherein a header is inserted into the TS packet based on the first information.

3. The method of claim 1 ,
wherein when the second information is a zero value, the data packet includes a TS stream including one or more TS packets in which a null packet is not deleted.

4. The method of claim 1 ,
wherein the null packet is inserted in the TS stream based on the second information.

5. The method of claim 1 ,
wherein the output-processing includes inserting a sync byte into a header of a TS packet.

6. The method of claim 1 ,
wherein a header of a baseband packet in the decoded broadcast data includes an extension field which extends the header of the baseband packet.

7. An apparatus for receiving broadcast signals, the apparatus comprising;
a tuner to receive the broadcast signals;
a demodulator to demodulate the received broadcast signals by an Orthogonal Frequency Division Multiplex (OFDM) scheme;
a processor to output broadcast data from a signal frame in the demodulated broadcast signals,
wherein the broadcast data includes video data or audio data, and the broadcast data is carried by only a Data Pipe (DP);
a decoder to decode the broadcast data; and
an output-processor to process the decoded broadcast data to output a data packet,
wherein the data packet includes a Transport Stream (TS) packet,
wherein a header of the data packet includes first information indicating whether a header deletion is performed in the TS packet,
wherein the header of the data packet further includes second information indicating whether a null packet is deleted, and
wherein when the second information is not a zero value, the null packet is deleted prior to the data packet.

8. The apparatus of claim 7 ,
wherein a header is inserted into the TS packet based on the first information.

9. The apparatus of claim 7 ,
wherein when the second information is a zero value, the data packet includes a TS stream including one or more TS packets in which a null packet is not deleted.

10. The apparatus of claim 7 ,
wherein the null pad is inserted in the TS stream based on the second information.

11. The apparatus of claim. 7 .
wherein the output-processor inserts a sync byte into a header of a TS packet.

12. The apparatus of claim 7 ,
wherein a header of a baseband packet in the decoded broadcast data includes an extension field which extends the header of the baseband packet.

Assignees

• Lg Electronics Inc

Inventors

• Hwang Jaeho
• Ko Woosuk
• Hong Sungryong

Classifications

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04L69/22

  Parsing or analysis of headers · CPC title

• H04H20/423

  Transmitter side · CPC title

• H04H20/00

  Arrangements for broadcast or for distribution combined with broadcast · CPC title

• H04L27/2649

  Demodulators · CPC title