| 摘要 |
The invention relates to a compact electric device for coding and selecting characters, symbols and/or multiple choices, consisting of a matrix carrying a plurality of contact or proximity sensors (1,2,3,4,5,5,7,8) , an activation member (10) of said sensors and a single selection key (22) . This key is operated by the user for bringing in turn said activation member at least partially in coincidence with at least a first and a second of said 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 associat ed to each matrix field. Said sensors are distributed on the matrix according t o modular zones, comprising a central zone (0) and radial sector zones (A, B, C,D) . |
