| 摘要 |
<p>The keyboard comprises a plurality of keys and/or manual controls connected to one or more boards which can generate coded electrical signals indicative of the commands put into effect by the operation of the keys and/or the manual controls. The keys and/or controls are divided into at least two sets (18, 20) disposed on at least two faces (14, 16) of a body (10) which can rotate in a tubular casing (6, 8) having a display window (26). The faces (14, 16) can be positioned in the display window (26) in turn as a result of the rotation of the rotary body (10). <IMAGE></p> |
