| 摘要 |
<p>A keyboard (10) comprising a plurality of key operated switches, each including a key (16,22) having a manually engagable key surface, means for connecting the key operated switches to key operated utilization apparatus, means for selectably determining the function produced by operation of each of the key operated switches, and display means (14; 18) for displaying on each key (16,22) its current function, as determined by the means for selectably determining, the means for displaying including means for providing a sensible output indication corresponding to the current function of each key at a location alongside each key (16,22).</p> |
