| 摘要 |
<p>A free-standing, compact size ergonomic computer keyboard. All the alphabetic, number and symbol keys are placed on the back side of the keyboard that are off sight of the operator. The positions of the keys on the back side are shown by a key indicia area on the front side of the keyboard, so that the operator can locate the keys on the back side. The layout of the keys is suitable for touch typing from the back side but still keeps most of the fingering of the QWERTY layout. 'F1'~'F12' keys, arrow keys, 'Insert', 'Delete', 'Esc' keys and the page control keys are placed on the upper part of the front side of keyboard to be operated by thumbs. 'Space', 'Backspace', 'Return', 'Shift', 'Ctrl', 'Alt', 'Caps Lock', 'Tab', 'Fn', 'Esc' and 'Delete' keys can be allocated onto four predefined key zones on the keyboard surface in different arrays and combinations. A cursor tracking device (mouse) is also integrated with the keyboard. During touch typing, the keyboard is held lightly in hands with or without the lower end of the keyboard stands on operator's lap or abdomen or on a table with the key indicia facing to the operator. The operator is free to sit, couch or even lie down on his back while typing.</p> |
