Method and Apparatus for Fingerprint Image Reconstruction

[0062]The techniques discussed here can generally be used with the sensing circuits previously described U.S. Pat. Nos. 7,099,496 and 7,146,024, and U.S. patent application Ser. Nos. 11 / 107,682, and 11 / 112,228 and incorporated herein by reference. Please see these applications for a more detailed discussion of the electronic elements. The invention is focused on signal analysis techniques, methods, and algorithms, and improved fingerprint sensors and navigational devices that use these previously disclosed finger position sensing devices. Thus the present application will not reiterate the details of these previously discussed electrical circuits unless they are relevant to the invention.

[0063]Referring to FIG. 1A, a side diagrammatic view of a finger position sensor in contact with a finger is illustrated according to the invention. The sensing array (sensing array medium) (100) is illustrated in somewhat of a side diagrammatic cut-away view that illustrates the individual sensing