US Patent 7327352 Linearized conductive surface

Electrode pattern disposed on a conductive surface is disclosed. The electrode pattern includes a plurality of conductive segments. The conductive segments are located along the edges of two or more concentric parallel polygons. Each edge of each polygon has one or more middle segments disposed between two end segments. For each edge of each polygon the middle segments are equal in length, and the segments are equally spaced. A touch sensor is disclosed that includes such an electrode pattern.