Patent ID: 8228218

Claim:
A method for recovering an original analog signal from a sampling of the original analog signal, the method comprising: obtaining the samples by applying a first distortion to the original analog signal forming a distorted original analog signal and then sampling the distorted original signal by a first digitizing process forming a representation of digitized samples of the original signal; calculating a signal representing an initial approximation of the original analog signal; reconstructing the original analog signal by: (a) applying a second distortion on the calculated signal forming a distorted calculated signal; wherein said second distortion is substantially equivalent to the first distortion; (b) sampling the distorted calculated signal by a second digitizing process; wherein said second digitizing process is substantially equivalent to the first digitizing process forming a representation of digitized samples of the distorted calculated signal; (c) comparing the representations by forming an error representation of the difference between the representations of the digitized samples of the original signal and the digitized samples of the calculated signal; if the representations are substantially equivalent then the calculated signal is considered to be substantially equivalent to the original signal and the calculated signal is output; otherwise the error representation is used to calculate a refined approximation of the original signal and the reconstructing of the original signal is performed iteratively using the refined calculated signal.