| 摘要 |
<p>A computer control unit having a keyboard (56) and a control device housing (112,1002) mounted in the keyboard, below the keys. Pattern means (96,226,98,184,1004,1038, 1050,1062,1064,1202) are slidably mounted in the control device housing for movement in at least two orthogonal directions parallel to the key plane. These pattern means define light control patterns. A finger-grippable control element (60,1024,1204) coupled to the pattern means extends from the housing to selectively move the pattern means to selected positions. Light responsive means (212, 214,246,248,630,1208) respond to the patterns (184,1226, 1038,1062,1064,1218,1230) to generate signals indicative of the selected positions. <IMAGE></p> |
