Patent ID: 7741570
Filing Date: 2010-06-22
Classification: G06F,H01H,H04M

Abstract:
1. A keypad comprising: a plurality of key structures comprising two or more adjacent pairs of key structures that extend from an underlying surface, wherein the two or more adjacent pairs of key structures are distributed primarily in a first direction; 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; and wherein for each of the two or more adjacent pairs of key structures, (i) a peak-to-peak distance between the peak of each key structure in the pair is greater than a distance between the center reference of each key structures in the pair, (ii) a height that the peak of each key structure in the pair is extended from the underlying surface is approximately equal; and (iii) a height that the center reference of each key structure in the pair is extended from the underlying surface is approximately equal.