A DIGITAL BROADCASTING TRANSMISSION SYSTEM, AND A SIGNAL PROCESSING METHOD THEREOF

• US 20090052546A1
• Filed: 10/30/2008
• Published: 02/26/2009
• Est. Priority Date: 10/11/2005
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kwon, Yong-sik, Park, Eui-jun, Yu, Jung-pil
• Granted Patent: US 8,699,584 B2
• Time in Patent Office: Days
• US Class Current: 375/240.250
• CPC Class Codes: H04N 21/23412 for generating or manipulating the scene composition of objects, e.g. MPEG-4 objects
• 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 21/2383 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 21/4382 Demodulation or channel decoding, e.g. QPSK demodulation analog front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002

Abstract

A digital broadcasting transmission system, and a signal processing method thereof, includes a parity area generating unit preparing a first area for parity insertion with respect to a dual transport stream (TS) which includes a normal stream and a turbo stream as multiplexed, a first interleaver interleaving the dual TS which is transmitted from the parity area generating unit, a turbo processing unit detecting the turbo stream from the interleaved dual TS, exclusively encoding the detected turbo stream for turbo-processing, and stuffing the encoded turbo stream into the dual TS, a deinterleaver deinterleaving the dual TS which is processed by the turbo processing unit, and a transmitting unit transmitting the dual TS which is processed at the deinterleaver.

Claims

1. A digital broadcast receiver, comprising:

a turbo decoder for detecting a supplementary data stream, and performing turbo decoding on the detected supplementary data stream, when a transmission stream including the supplementary data stream and a normal data stream is received,

wherein the transmission stream is processed, at a transmission terminal, using error correction, encoding, and interleaving on the supplementary data stream and the processed supplementary data stream is subsequently multiplexed with the normal data stream.

2. The digital broadcast receiver of claim 1, the transmission stream comprises the supplementary data stream in a single packet.

3. The digital broadcast receiver of claim 1, wherein the transmission stream comprises only the supplementary data stream in a data area of the transmission stream.

4. The digital broadcast receiver of claim 1, wherein:

the transmission stream comprises a packet having the supplementary data stream and a packet having the normal data stream, and

the packets are arranged in predetermined numbers of packets in an alternating order.

5. The digital broadcast receiver of claim 1, wherein:

the transmission stream comprises a packet having the supplementary data stream in a data area of the transmission stream and a packet having the normal data stream, and

the packets are arranged in predetermined numbers of packets in an alternating order.

6. A method for receiving a digital broadcast signal of a digital broadcast receiver, the method comprising:

detecting a supplementary data stream, and performing turbo decoding on the detected supplementary data stream, when a transmission stream including the supplementary data stream and a normal data stream is received,

wherein the transmission stream is processed, at a transmission terminal, using error correction, encoding, and interleaving on the supplementary data stream and the processed supplementary data stream is subsequently multiplexed with the normal data stream.

7. The method of claim 6, the transmission stream comprises the supplementary data stream in a single packet.

8. The method of claim 6, wherein the transmission stream comprises only the supplementary data stream in a data area of the transmission stream.

9. The method of claim 6, wherein the transmission stream comprises a packet having the supplementary data stream and a packet having the normal data stream, and the packets are arranged in predetermined numbers of packets in an alternating order.

10. The method of claim 6, wherein:

the transmission stream comprises a packet having only the supplementary data stream in a data area of the transmission stream and a packet having the normal data stream, and

the packets are arranged in predetermined numbers of packets in an alternating order.