VSB COMMUNICATION SYSTEM

• US 20110007822A1
• Filed: 08/13/2010
• Published: 01/13/2011
• Est. Priority Date: 04/18/2001
• Status: Abandoned Application

• 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
• Application Number:
  US12/856,433
• Publication Number:
  US 20110007822A1
• Time in Patent Office: Days
• US Class Current: 375/240.26
• 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 1/0046 Code rate detection or code type detection H04L1/0038 takes precedence; detection of the data rate H04L25/0262; for packet format H04L1/0091
• 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 19/46 Embedding additional information in the video signal during the compression process H04N19/517, H04N19/68, H04N19/70 take precedence
• CPC Class Codes: H04N 19/66 involving data partitioning, i.e. separation of data into packets or partitions according to importance
• CPC Class Codes: H04N 19/68 involving the insertion of resynchronisation markers into the bitstream
• 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 VSB communication system comprises a VSB transmission system and a VSB reception system. The VSB transmission system multiplexes a coded MPEG data and a coded supplemental data having a null sequence inserted therein, with required multiplexing information included in a field synchronization signal or in a supplemental data according to a number of the supplemental data packets being transmitted. The VSB reception system detects the required multiplexing information from the field synchronization signal or the supplemental data and decodes the multiplexed data by using the null sequence and the detected multiplexing information, as well as demultiplexes the multiplexed data into the MPEG data and the supplemental data.

Claims

1-48. -48. (canceled)

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

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

multiplexing the encoded first data with second data in a multiplexer, the second data being input to the multiplexer through a second path;

performing second encoding on the multiplexed first and second data in a second encoder; and

interleaving the encoded first and second data in an interleaver.

50. The method of claim 49, wherein the first data and the second data include at least audio or video.

51. The method of claim 49, wherein the second path is different from the first path.

52. The method of claim 49, wherein the second encoding comprises first Reed-Solomon (RS) coding the multiplexed first data.

53. The method of claim 49, wherein the second encoding comprises second Reed-Solomon (RS) coding the multiplexed second data.

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

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

a multiplexer multiplexing the encoded first data with second data, the second data being input to the multiplexer through a second path;

a second encoder performing second encoding on the multiplexed first and second data; and

an interleaver interleaving the encoded first and second data.

55. The transmission system of claim 54, wherein the first data and the second data include at least audio or video.

56. The transmission system of claim 54, wherein the second path is different from the first path.

57. The transmission system of claim 54, wherein the second encoding comprises first Reed-Solomon (RS) coding the multiplexed first data.

58. The transmission system of claim 54, wherein the second encoding comprises second Reed-Solomon (RS) coding the multiplexed second data.