An apparatus for input and fingerprint recognition comprises a touch
surface, and a data processor coupled to the touch surface. The touch
surface comprises a first region and a second region. The second region
is distinct from and coplanar with the first region and occupies a minor
portion of a total surface area of the touch surface. The data processor
is configured to selectively operate the touch surface in a touch input
mode or a fingerprint detection mode. In the touch input mode, the data
processor is configured to operate the second region at a first
resolution comparable to that of the first region to detect a touch input
anywhere on the touch surface. In the fingerprint detection mode, the
data processor is configured to operate the second region at a higher
resolution than the first resolution to detect a fingerprint on the
second region.