Special thanks goes to hurz.
How I did it ...
1) sketched the signature in inkscape and saved it as .SVG file.
2) Converted the code in the SVG file to a file containing the X-Y coordinates of the signature path using simple java script
3) entered those values to MATLAB and computed the Fourier transform using the fft function
4) entered the values to everycircuit...
That was it but it took me three days to get it to work correctly
And on the fourth step, it was really frustrating to enter the AC values manually to EC, so I wrote a C++ code to generate netlist for EC and since I have a rooted phone I copied the netlist directly to EC's data folder.
