Patent ID: 7369813

Claim:
A method for determining which setting of a plurality of device input compensation settings provides a minimum of unwanted signal at an output of the device, comprising: a) applying a signal to an input of the device; b) setting the device to a first one of the plurality of device input compensation settings; c) measuring unwanted signal level at the first compensation setting; d) determining a first distance from the first compensation setting to a calibration setting resulting in minimum unwanted signal level based on the first measured level and a predetermined characteristic of the unwanted signal; e) setting the device to a second one of the plurality compensation settings; f) measuring unwanted signal level at the second compensation setting; g) determining a second distance from the second compensation setting to the calibration setting based on the second measured level and the predetermined characteristic; and h) determining the calibration setting based on the first and second settings and the first and second distances.