METHODS TO TRANSPORT FORWARD ERROR CORRECTION CODES IN A SYMBOL ENCODED TRANSMISSION STREAM

• US 20150349920A1
• Filed: 05/27/2015
• Published: 12/03/2015
• Est. Priority Date: 05/28/2014
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Stolitzka, Dale F., Kamali, Jalil
• Granted Patent: US 10,447,429 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 3/0619 in relation to data integrity, e.g. data losses, bit errors
• CPC Class Codes: H03M 13/03 Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
• CPC Class Codes: H03M 13/1515 Reed-Solomon codes
• CPC Class Codes: H03M 13/19 Single error correction without using particular properties of the cyclic codes, e.g. Hamming codes, extended or generalised Hamming codes
• CPC Class Codes: H03M 13/2906 using block codes H03M13/2957 takes precedence
• CPC Class Codes: H03M 13/2942 wherein a block of parity bits is computed only from combined information bits or only from parity bits, e.g. a second block of parity bits is computed from a first block of parity bits obtained by systematic encoding of a block of information bits, or a block of parity bits is obtained by an XOR combination of sub-blocks of information bits
• CPC Class Codes: H03M 13/31 combining coding for error detection or correction and efficient use of the spectrum without error detection or correction H03M5/14 , H03M5/145
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/0043 Realisations of complexity reduction techniques, e.g. use of look-up tables
• CPC Class Codes: H04L 1/0052 Realisations of complexity reduction techniques, e.g. pipelining or use of look-up tables
• CPC Class Codes: H04L 1/0057 Block codes H04L1/0061, H04L1/0064 take precedence
• CPC Class Codes: H04L 1/0061 Error detection codes
• CPC Class Codes: H04L 1/0065 Serial concatenated codes
• CPC Class Codes: H04L 1/0072 Error control for data other than payload data, e.g. control data
• CPC Class Codes: H04L 25/49 using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems spectral shaping H04L25/03828

Abstract

A method to transport forward error correction (FEC) codes in a symbol encoded transmission stream includes encoding a data stream from a data source into data symbols using computing circuits, generating first FEC codes from the data symbols using the computing circuits, encoding the first FEC codes into first FEC symbols using the computing circuits, merging the data symbols and the first FEC symbols into the transmission stream using the computing circuits, and transmitting the merged transmission stream to a sink device using the computing circuits. The encoding of the data stream into the data symbols and the encoding of the first FEC codes into the first FEC symbols may include the same encoding technique.

Claims

1. A method to transport forward error correction (FEC) codes in a transmission stream, the method comprising:

encoding a data stream from a data source into data symbols using computing circuits;

generating first FEC codes from the data symbols using the computing circuits;

encoding the first FEC codes into first FEC symbols using the computing circuits;

merging the data symbols and the first FEC symbols into the transmission stream using the computing circuits; and

transmitting the merged transmission stream to a sink device using the computing circuits.

2. The method of claim 1, wherein the encoding of the data stream into the data symbols and the encoding of the first FEC codes into the first FEC symbols comprise the same encoding technique.

3. The method of claim 1, further comprising:

generating second FEC codes from the first FEC codes using the computing circuits; and

encoding the second FEC codes into second FEC symbols using the computing circuits,

wherein the merging of the data symbols and the first FEC symbols comprises merging the second FEC symbols into the transmission stream using the computing circuits.

4. The method of claim 1, wherein the merging of the data symbols and the first FEC symbols comprises merging a control symbol between the data symbols and the first FEC symbols into the transmission stream using the computing circuits.

5. The method of claim 1, wherein the merging of the data symbols and the first FEC symbols comprises merging the first FEC symbols after the data symbols into the transmission stream using the computing circuits.

6. The method of claim 5, wherein the transmitting of the merged transmission stream comprises:

serializing the merged transmission stream using the computing circuits; and

transmitting the serialized transmission stream over a serial data link to the sink device using the computing circuits.

7. The method of claim 6, wherein the merging of the data symbols and the first FEC symbols further comprises merging a control symbol after the first FEC symbols into the transmission stream using the computing circuits.

8. The method of claim 1, wherein the sink device comprises a display device.

9. A method to transport forward error correction (FEC) codes in a transmission stream, the method comprising:

receiving the transmission stream from a source device using computing circuits;

separating the received transmission stream into data symbols and first FEC symbols using the computing circuits;

decoding the first FEC symbols into first FEC codes using the computing circuits;

correcting errors in the data symbols with the first FEC codes using the computing circuits; and

decoding the corrected data symbols into a data stream using the computing circuits.

10. The method of claim 9, wherein the decoding of the first FEC symbols into the first FEC codes and the decoding of the corrected data symbols into the data stream comprise the same decoding technique.

11. The method of claim 9, wherein

the separating of the received, transmission stream comprises separating the received transmission stream into second FEC symbols using the computing circuits,

the method further comprises:

decoding the second FEC symbols into second FEC codes using the computing circuits; and

correcting errors in the first FEC codes with the second FEC codes using the computing circuits, and

the correcting of the errors in the data symbols comprises correcting the errors in the data symbols with the corrected first FEC codes using the computing circuits.

12. The method of claim 9, wherein the separating of the received transmission stream comprises separating a control symbol between the data symbols and the first FEC symbols from the transmission stream using the computing circuits.

13. The method of claim 9, wherein the separating of the received transmission stream comprises separating the data symbols from the received transmission stream before separating the first FEC symbols using the computing circuits.

14. The method of claim 13, wherein the receiving of the transmission stream comprises:

receiving the transmission stream from the source device over a serial data link using the computing circuits; and

de-serializing the received transmission stream using the computing circuits.

15. The method of claim 14, wherein the separating of the received transmission stream further comprises separating a control symbol after the first FEC symbols from the received transmission stream using the computing circuits.

16. A method to transport forward error correction (FEC) codes in a transmission stream, the method comprising:

encoding a data stream at a source device from a data source into data symbols using first computing circuits;

generating first FEC codes at the source device from the data symbols using the first computing circuits;

encoding the first FEC codes at the source device into first FEC symbols using the first computing circuits;

merging the data symbols and the first FEC symbols at the source device into the transmission stream using the first computing circuits;

transmitting the merged transmission stream from the source device to a sink device using the first computing circuits;

receiving the transmitted transmission stream at the sink device from the source device using second computing circuits;

separating the received transmission stream at the sink device into received said data symbols and received said first FEC symbols using the second computing circuits;

decoding the received first FEC symbols at the sink device into decoded said first FEC codes using the second computing circuits;

correcting errors in the received data symbols at the sink device with the decoded first FEC codes using the second computing circuits; and

decoding the corrected data symbols at the sink device into a data stream using the second computing circuits.

17. The method of claim 16, wherein

the encoding of the data stream into the data symbols and the encoding of the first FEC codes into the first FEC symbols comprise the same encoding technique, and

the decoding of the received first FEC symbols into the decoded first FEC codes and the decoding of the corrected data symbols into the data stream comprise the same decoding technique.

18. The method of claim 16, further comprising:

generating second FEC codes at the source device from the first FEC codes using the first computing circuits; and

encoding the second FEC codes at the source device into second FEC symbols using the computing circuits,

wherein

the merging of the data symbols and the first FEC symbols comprises merging the second FEC symbols at the source device into the transmission stream using the first computing circuits,

the separating of the received transmission stream comprises separating the received transmission stream at the sink device into received said second FEC symbols using the second computing circuits,

the method further comprises;

decoding the received second FEC symbols at the sink device into decoded said second FEC codes using the second computing circuits; and

correcting errors in the decoded first FEC codes at the sink device with the decoded second FEC codes using the second computing circuits, and

the correcting of the errors in the received data symbols comprises correcting the errors in the received data symbols at the sink device with the corrected first FEC codes using the second computing circuits.

19. The method of claim 16, wherein

the merging of the data symbols and the first FEC symbols comprises merging a control symbol at the source device between the data symbols and the first FEC symbols into the transmission stream using the first computing circuits, and

the separating of the received transmission stream comprises separating received said control symbol at the sink device between the received data symbols and the received first FEC symbols from the transmission stream using the second computing circuits.

20. The method of claim 16, wherein

the merging of the data symbols and the first FEC symbols comprises merging the first FEC symbols at the source device after the data symbols into the transmission stream using the first computing circuits, and

the separating of the received transmission stream comprises separating the received data symbols at the sink device from the received transmission stream before separating the received first FEC symbols using the second computing circuits.

21. The method of claim 20, wherein the transmitting of the merged transmission stream comprises:

serializing the merged transmission stream at the source device using the first computing circuits;

transmitting the serialized transmission stream over a serial data link from the source device to the sink device using the first computing circuits;

receiving the transmitted transmission stream at the sink device from the source device over the serial data link using the second computing circuits; and

de-serializing the received transmission stream at the sink device using the second computing circuits.

22. The method of claim 21, wherein

the merging of the data symbols and the first FEC symbols further comprises merging a control symbol at the source device after the first FEC symbols into the transmission stream using the first computing circuits, and

the separating of the received transmission stream further comprises separating received said control symbol at the sink device after the first FEC symbols from the received transmission stream using the second computing circuits.

23. The method of claim 16, wherein the sink device comprises a display device.

24. A method to transport forward error correction (FEC) codes in a transmission stream, the method comprising:

encoding a data stream at a source device from a data source into data symbols using first computing circuits;

generating FEC codes at the source device from the data symbols using the first computing circuits;

buffering the FEC codes at the source device using the first computing circuits until the first computing circuits decide that a first criteria has been met;

merging the data symbols and the buffered FEC codes at the source device into the transmission stream using the first computing circuits;

transmitting the merged transmission stream from the source device to a sink device using the first computing circuits;

receiving the transmitted transmission stream at the sink device from the source device using second computing circuits;

separating the received transmission stream at the sink device into received said data symbols and received said buffered FEC codes using the second computing circuits;

correcting errors in the received data symbols at the sink device with the received buffered FEC codes using the second computing circuits; and

decoding the corrected data symbols at the sink device into a data stream using the second computing circuits.

25. The method of claim 24, wherein the merging of the data symbols and the buffered FEC codes comprises:

framing the buffered FEC codes with control symbols; and

merging the data symbols and the framed FEC codes at the source device into the transmission stream using the first computing circuits.

26. The method of claim 24, wherein

the merging of the data symbols and the buffered FEC codes comprises merging a control symbol at the source device between the data symbols and the buffered FEC codes in the transmission stream using the first computing circuits, and

the separating of the received transmission stream comprises separating received said control symbol at the sink device between the received data symbols and the received buffered FEC codes from the transmission stream using the second computing circuits.

27. The method of claim 24, wherein

the merging of the data symbols and the buffered FEC codes comprises merging the buffered FEC codes at the source device after the data symbols into the transmission stream using the first computing circuits, and

the separating of the received transmission stream comprises separating the received data symbols at the sink device from the received transmission stream before separating the received buffered FEC codes using the second computing circuits.

28. The method of claim 27, wherein the transmitting of the merged transmission stream comprises:

serializing the merged transmission stream at the source device using the first computing circuits;

transmitting the serialized transmission stream over a serial data link from the source device to the sink device using the first computing circuits;

receiving the transmitted transmission stream at the sink device from the source device over the serial data link using the second computing circuits; and

de-serializing the received transmission stream at the sink device using the second computing circuits.

29. The method of claim 28, wherein

the merging of the data symbols and the buffered FEC codes further comprises merging a control symbol at the source device after the buffered FEC codes into the transmission stream using the first computing circuits, and

the separating of the received transmission stream further comprises separating received said control symbol at the sink device after the buffered FEC codes from the received transmission stream using the second computing circuits.

30. The method of claim 24, wherein the sink device comprises a display device.