Patent ID: 7054435
Filing Date: 2006-05-30
Classification: H04M

Abstract:
1. A method for determining a number defining a time to detect a received tone in response to input information defining the received tone, comprising the steps of: (a) determining for each of all possible tones all sequences of each of all possible tones; (b) calculating the number from the sequences of all of the possible tones by determining all pairs of tone for all possible tones, calculating a value for the number of times for each pair of possible tones, and setting the number of times equal to the largest value of all calculated values; (c) comparing all sequences of all possible tones with a portion of the input information; (d) determining a subset of sequences that match the input information where all other sequences of all possible tones did not match the input information; (e) comparing sequences of the subset with another portion of the input information; (f) determining a new subset of sequences that match the input information where all other sequences of the subset did not match the input information; and (g) repeating steps (e) and (f) by substituting the new subset for the subset of step (e) until steps (e) and (f) have been repeated the number of times.