Patent ID: 7529363

Claim:
A method for performing tone detection, comprising: receiving an input signal; selecting a first tone format, wherein a first tone corresponds to a first symbol; providing a first table of values corresponding to the first tone format, wherein at least one entry in the first table of values relates the first tone to the first symbol; using a predetermined algorithm and the first table of values to determined if the input signal comprises the first symbol; selecting a second tone format, wherein a second tone corresponds to the first symbol; providing a second table of values corresponding to the second tone format, wherein at least one entry in the second table of values relates the second tone to the first symbol; and using the same predetermined algorithm and the second table of values to determined if the input signal comprises the first symbol, wherein the first tone format and the second tone format are different, and wherein the first table of values and the second table of values have at least one value that is different.