10. The method claim 9 comprising, selecting candidate probabilities, at least in part, depending on the results of one of: (1) determining the difference between the new probability based value and a candidate probability from the look up table selected by using the new probability based value as an index number to look up the candidate probability; and (2) determining the difference between (a) a change value based on, at least in part, the difference between the new probability and the previous probability, and (b) a candidate probability from the look up table selected by using the change value as an index number to look up the candidate probability.
11. The method of claim 10 comprising adjusting an initial value of a probability candidate from the look up table depending on a comparison between the initial value and the previous probability based value, and setting the value of the probability candidate by using the difference in a calculation.