| 摘要 |
An input device for a computer 5 has two parts. A hand operated part 1 can be moved to move a cursor on the computer screen 6. A foot operated part 2 provides clicking, selecting or scrolling functions. The hand operated part is symmetrical to allow it to be held in either hand of a user. It may be possible to add additional clickable keys or a scroll wheel to the foot operated part. The foot operated part may use a passive RF antenna, which is closed by the user pressing a switch. The hand operated part may have an RF receiver to receive signals from the foot operated part. Alternatively, a docking station 3 may receive RF signals from the hand operated part and the foot operated part.
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