Patent ID: 8264382

Claim:
A keyboard with a plurality of sensitive key elements ( 10 , 12 , 14 ) arranged on said keyboard according to a predetermined scheme, wherein: each of the key elements ( 10 , 12 , 14 ) provides an analog electric signal (U 1 , U 2 , U 3 ), the analog electric signal (U 1 , U 2 , U 3 ) depends on the position of a fingertip, a contact surface of the key element ( 12 ) is subdivided into zones (A, B, C, D), the zones (A, B, C, D) are defined in such a way, that the zones (A, B, C, D) have different distances from the adjacent key elements ( 10 , 14 ), and each zone (A, B, C, D) corresponds with a range of relationships between the signal (U 2 ) of the key element ( 12 ) and the signal (U 1 , U 3 ) of at least one adjacent key element ( 10 , 14 ).