Patent ID: 7062397
Filing Date: 2006-06-13
Classification: G03F

Abstract:
1. A method for calibrating a device for which it is not possible to provide another device, having a higher degree of precision, to be used as a standard against which the device to be calibrated can be compared to perform the calibration, said method comprising the steps of: inputting a representative input to the device to be calibrated; converting the input to machine instructions used by the device to reproduce the input as an output; outputting the reproduction of the input as a current output; adjusting one or more operational parameters of the device with at least one adjustment to reduce recursive errors in the machine instructions; inputting the output from said outputting the reproduction as a current input to the device to be calibrated; repeating said converting and outputting steps based upon the current input; comparing the machine instructions from a current converting step to machine instructions produced by a previous converting step; and determining that the calibration of the device has been successfully completed when errors between the machine instructions from a current converting step and the machine instructions produced by a previous converting step are within predetermined error tolerances, or adjusting one or more operational parameters of the device, and then repeating said inputting the current output, repeating said converting and outputting, and comparing steps when said errors are not within said predetermined error tolerances.