Patent ID: 8884913

Claim:
A multi-touch interface comprising: a two-dimensional array of contact points, wherein the contact points are substantially uniformly distributed within the array such that each contact point is substantially equidistant from neighboring contact points located in vertical and horizontal directions; wherein a first subset of contact points are electrically connected to form at least one first type of sensor, each first type of sensor comprising contact points electrically connected in a first direction; wherein a second subset of contact points are electrically connected to form at least one second type of sensor, each second type of sensor comprising contact points electrically connected in a second direction, wherein the second subset of contact points comprise contact points other than the first subset of contact points, and wherein the second direction is orthogonal to the first direction; and wherein a third subset of contact points is divided into clusters of substantially locally distributed contact points, each of the clusters comprising contact points electrically connected to form a third type of sensor; wherein the third subset of contact points comprises contact points other than the first and second subset of contact points; and wherein each of the clusters is formed to provide an absolute location of one or more touch loads applied to the multi-touch interface.