Patent ID: 7394030

Claim:
A keypad for a mobile computing device, the keypad comprising: a plurality of key structures, the plurality of key structures including at least a set of key structures that are distributed in a direction of at least a first axis; wherein each key structure in the plurality of key structures includes an exterior surface for receiving user-contact, the exterior surface of each key structure having a center reference and a peak, so that an offset distance between the center reference and the peak is greater than zero for at least some of the plurality of key structures; and wherein the offset distance for at least two or more key structures in the set is different based on a position of that key structure relative to a first reference line of a second axis that is orthogonal to the first axis; wherein a magnitude of the offset distance for the set of key structures that are distributed in the direction along the first axis range from (i) a minimum for one or more key structures in the set that are closest to a first reference line, to (ii) a maximum for one or more key structures in the set that are furthest to the first reference line; and wherein for each adjacent pair in the set, a peak-to-peak distance between the peak of each key structures of that pair is greater than a reference point distance between the center point of each key structure in that pair.