Abstract: A compact electric device for coding and selecting characters, symbols and/or multiple choices, includes a matrix carrying a plurality of contact or proximity sensors (1,2,3,4,5,5,7,8), an activation member (10) of sensors and a single selection key (22). This key is operated by the user for bringing in turn the activation member at least partially in coincidence with at least a first and a second of the sensors, for transmitting a selectively different coded signal for each respective different sensor. The matrix comprises a first group of sensors (1,2,3), having function of selection of respective matrix fields, and a second group of sensors (4,5,6,7,8), having function of selection of characters associated to each matrix field. The sensors are distributed on the matrix according to modular zones, having a central zone (0) and radial sector zones (A, B, C, D).

Abstract: A compact electric device for coding and selecting characters, symbols and/or multiple choices, includes a matrix carrying a plurality of contact or proximity sensors (1,2,3,4,5,5,7,8), an activation member (10) of sensors and a single selection key (22). This key is operated by the user for bringing in turn the activation member at least partially in coincidence with at least a first and a second of the sensors, for transmitting a selectively different coded signal for each respective different sensor. The matrix comprises a first group of sensors (1,2,3), having function of selection of respective matrix fields, and a second group of sensors (4,5,6,7,8), having function of selection of characters associated to each matrix field. The sensors are distributed on the matrix according to modular zones, having a central zone (0) and radial sector zones (A, B, C,D).