A ferroelectric polarization pattern with differing feedback signals. An
apparatus including a ferroelectric layer and a polarization pattern
configured in the ferroelectric layer to represent position data. The
polarization pattern has a first switchable polarization state domain and
a second switchable polarization state domain that are both switchable by
an applied signal. The first switchable polarization state domain has a
first feedback signal in response to the applied signal that is different
than a second feedback signal of the second switchable polarization state
domain at the applied signal.