Method and apparatus for propagating error status over an...

Details Method and apparatus for propagating error status over an... Method and apparatus for propagating error status over an...

Filed on

2006-03-28

Date issued

2006-03-28

Examiner

Dildine, R. Stephen (Department: 2133)

Patent Class

Error detection/correction and fault detection/recovery

SubClass

Pulse or data error handling

SubSubClass

Data formatting to improve error detection correction...

Other Related Categories

C714S052000, C714S703000, C714S704000, C714S708000, C714S753000, C714S765000, C714S785000

Type

Reexamination Certificate

Status

active

Patent number

07020810

Description

ABSTRACT:
System and methods for propagating error status over an error checking and correcting (ECC) protected channel. A first device receives data and an error status associated with the data. The first device generates check bits for the data based on a first ECC code and combines the check bits with the data to form one or more code words. The first device sends the code words across the channel where the first device inserts a triple error into a nibble of at least one codeword sent if the error status indicated an uncorrectable error. A second device connected to the channel receives the code words sent across the channel. The second device detects triple errors within a nibble of any code word and any other single error in the code word using a second ECC code, where the second ECC code is the first ECC code with columns for check bits inserted.

REFERENCES:
patent: 5917838 (1999-06-01), Wardrop
patent: 6622268 (2003-09-01), Holman
“Mechanism for Non-disruptive Dynamic Testing of a Communications Network”, IBM Technical Disclosure Bulletin, vol. 34, No. 7A, pp. 239-240, Dec. 1, 1991.
“Separate Microcode-Controlled Write Lines for Data and ECC Check Bits”, IBM Technical Disclosure Bulletin, vol. 28, No. 11, pp. 4902-4903, Apr. 1, 1986.
Redinbo, G.R.; Decoding real-number convolutional codes: change detection, Kalman estimation; □□IEEE Transactions on Information Theory; vol. 43, Issue 6, Nov. 1997 Page(s):1864-1876.

Affiliated with

Also associated with

Rating

Method and apparatus for propagating error status over an... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for propagating error status over an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for propagating error status over an... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3565850