Patent ID: 6263465
Filing Date: 2001-07-17
Classification: H04L

Abstract:
An error detection and correction method for correcting errors in data transmitted across a propagation medium, the method comprising the steps of:coding a set of data to be transmitted to form a first URZ encoded data set;providing a second URZ encoded data set for the set of data to be transmitted, wherein the second URZ encoded data set is delayed relative to the first URZ encoded data set by a given time period;transmitting the first and second URZ encoded data sets across the propagation medium to a receiving location;at the receiving location, providing a synchronization of the second URZ encoded data set with the first URZ encoded data set;subtracting the synchronized second URZ encoded data set from the first URZ encoded data set to yield a subtraction result for each bit position;correcting errors as required for the first and second URZ encoded data sets based on a non-zero subtraction result at a given bit position; andsumming the corrected first and second URZ encoded data sets to yield a UNRZ coding for the set of data.