Error correction on M-bit encoded links

Details Error correction on M-bit encoded links Error correction on M-bit encoded links

2007-10-16

2007-10-16

Lamarre, Guy (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S781000, C714S753000, C714S807000

Reexamination Certificate

active

10629690

ABSTRACT:
Error correction on high speed interconnection links—backplane or extended wires (cable, optical fiber)—is exhaustively considered by many telecommunication vendors, especially those who offer “scalable router” products. Since the 64b/66b encoding scheme is a strong candidate of high speed interconnection protocol, error correction on 64b/66b encoded links is of interest. Although the IEEE 802.3 10G Ethernet standard does not specifically refer to packet loss, it can be shown that even only a single-bit error correction can significantly enhance the quality of the link. The present invention presents a simple and fast error-correction scheme that can be used in conjunction with the 64b/66b encoding in products where intra-board (chip-to-chip) or inter-shelf interconnections of high speed elements are required. It utilizes the CRC16 to optimize on error detection, correction, or both: it detects and corrects all single-bit errors and detects all multiple-bit errors.

REFERENCES:
patent: 5491700 (1996-02-01), Wright et al.
patent: 5881074 (1999-03-01), Rao
patent: 6088827 (2000-07-01), Rao
patent: 7020833 (2006-03-01), Watanabe et al.
patent: 7089485 (2006-08-01), Azadet et al.
J.Carlson et al: “RFC 2823: PPP over Simple Data Link (SDL) Using SONET/SDH with ATM-like Framing,” Network Working Group Request for Comments, 2823, May 2000 (pp. 1-28).
Sowmya S. Luckoor: “Introduction to 10 Gigabit 64b/66b (Clause 49),” Internet Article, Oct. 22, 2001: URL:http://www.iol.unh.edu/knowledgeBase/training/files/10gec/10GbE—C149.pdf>.
IEEE Computer Society: “802.3AE: IEEE Standard for Information Technology—Telecommunications and Information exchange between systems—Local and metropolitan area networks—Specific requirements: Part 3: Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications.” IEEE STANDARDS, Aug. 30, 2002, New York, NY.
Steve Linton: “Error-correcting Codes,” Internet Article, Nov. 28, 1995: URL:http://www.dcs.sta- and.ac.uk/{sal/schoo1/cs3010/Lectures/forhtml
ode3.html#SECTION00030000000000000000>.

Affiliated with

Also associated with

Rating

Error correction on M-bit encoded links does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Error correction on M-bit encoded links, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Error correction on M-bit encoded links will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3835836