| 摘要 |
<p>A keyboard (10) having a conventional set of alphanumeric keys (26, 27, 28, 30, 31) and special function keys (12, 14, 16, 18, 20, 22, 24, 32, 34, 36) which are actuable by an operator using a finger and a stylus (40). The stylus-actuable keys (26, 27, 28, 30, 31, 32, 34, 36) have keypad areas which are less than a prescribed range of areas. Other keys (12, 14, 16, 18, 20, 22, 24) which have keypads greater in area than a value in the prescribed range are designed for keystroke operation by the operator's finger. Alternatively, the stylus-actuable keys (26, 27, 28, 30, 31, 32, 34, 36) have center line spacings which are less than a value from a predetermined range of linea dimensions, while the finger-actuable keys (12, 14, 16, 18, 20, 22, 24) have center line spacings which are greater in value than a value in the predetermined range. Being suitable for use with a graphical tablet (86), another embodiment of the invention is made with keys mounted to a surface which is angled between 30 degrees and 90 degrees from the horizontal plane of a desktop.</p> |
