[pMJWFoAWD]

May be a long shot, but hopefully someone can help me out.

I'm given 4 rows of bits and am told that its using 2D even parity. Here is how they are arranged:

Code:

Code

1001010 | 1 0100111 | 1 1101000 | 0 ------------- 1101101 | 1

As I understand, where the row and column without an even amount of ones cross, that is a bit that is in error. Knowing that I can determine that the following bits are in error:

Code:

Code

(Row, Column)  (2,1) (2,2) (2,4) (2,8) (3,1) (3,2) (3,4) (3,8)

What it asks now is if the errors can be corrected. I cant find any good information on 2D Parity, but my intuition tells me that if an even number of errors occur on the row/column it cannot be corrected. So, in this case the answer is no.

Does anyone know more about this? I think I'm right, but would like some confirmation. Cheers. [thumbup]