VSB transmission system for processing supplemental transmission data

• US 8,059,718 B2
• Filed: 09/09/2009
• Issued: 11/15/2011
• Est. Priority Date: 12/28/2000
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Choi, In Hwan, Gu, Young Mo, Kwak, Kook Yeon, Kang, Kyung Won
• Primary Examiner(s): An; Shawn
• Application Number:
  US12/556,233
• Publication Number:
  US 20100037106A1
• Time in Patent Office: 797 Days
• Field of Search: 375/240.12, 375/240.24, 375/240.26, 375/240.23, 375/301, 375/270, 375/240.27, 382/235, 382/246, 455/47, 455/109
• US Class Current: 375/240.12
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/0045 Arrangements at the receiver end
• CPC Class Codes: H04L 1/0057 Block codes H04L1/0061, H04L1/0064 take precedence
• CPC Class Codes: H04L 1/006 Trellis-coded modulation
• CPC Class Codes: H04L 1/0065 Serial concatenated codes
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• 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 21/2365 Multiplexing of several video streams
• 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 21/4347 Demultiplexing of several video streams
• CPC Class Codes: H04N 21/4348 Demultiplexing of additional data and video streams
• 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
• CPC Class Codes: H04N 7/52 Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal assembling of a multiplex stream by combining a video stream with other content or additional data, remultiplexing of multiplex streams, insertion of stuffing bits into the multiplex stream, assembling of a packetised elementary stream at server side H04N21/236; disassembling of a multiplex stream, remultiplexing of multiplex streams, extraction or processing of Service Information, disassembling of packetised elementary stream at client side H04N21/434

Abstract

A VSB communication system or transmitter for processing supplemental data packets with MPEG-II data packets includes a VSB supplemental data processor and a VSB transmission system. The VSB supplemental data processor includes a Reed-Solomon coder for coding the supplemental data to be transmitted, a null sequence inserter for inserting a null sequence to an interleaved supplemental data for generating a predefined sequence, a header inserter for inserting an MPEG header to the supplemental data having the null sequence inserted therein, a multiplexer for multiplexing an MPEG data coded with the supplemental data having the MPEG header added thereto in a preset multiplexing ratio and units. The output of the multiplexer is provided to an 8T-VSB transmission system for modulating a data field from the multiplexer and transmitting the modulated data field to a VSB reception system.

Claims

1. A method of processing data in a transmission system, the method comprising:

performing first encoding on first data in a first encoder, wherein the first data is input to the first encoder through a first path;

interleaving the encoded first data in a first interleaver for first burst error correction;

multiplexing the interleaved first data with second data in a multiplexer, wherein the second data is input to the multiplexer through a second path different from the first path;

performing second encoding on the multiplexed first and second data in a second encoder, wherein the second encoding is different from the first encoding; and

interleaving the second encoded first and second data in a second interleaver for second burst error correction.

2. The method of claim 1, wherein the first encoding or the second encoding is forward error correction (FEC) encoding.

3. The method of claim 2, wherein the FEC encoding is Reed Solomon (RS) encoding.

4. The method of claim 1, wherein the first data comprises at least audio or video data.

5. The method of claim 1, wherein the second data comprises at least audio or video data.

6. A transmission system for processing data, the transmission system comprising:

a first encoder performing first encoding on first data, wherein the first data is input to the first encoder through a first path;

a first interleaver interleaving the encoded first data for first burst error correction

a multiplexer multiplexing the interleaved first data with second data, wherein the second data is input to the multiplexer through a second path different from the first path;

a second encoder performing second encoding on the multiplexed first and second data, wherein the second encoding is different from the first encoding; and

a second interleaver interleaving the second encoded first and second data for second burst error correction.

7. The transmission system of claim 6, wherein the first encoding or the second encoding is forward error correction (FEC) encoding.

8. The transmission system of claim 7, wherein the FEC encoding is Reed Solomon (RS) encoding.

9. The transmission system of claim 6, wherein the first data comprises at least audio or video data.

10. The transmission system of claim 6, wherein the second data comprises at least audio or video data.