| 摘要 |
A position detection method using one or more one-dimensional image sensors for detecting a light source (22) in free space is adapted for use as a portable free-space data input device (20) for controlling of a cursor (42) on the display (44) of a computer A user of the portable free-space data input device (20) should move the portable free-space data input device (20) in free space to control the movement of the cursor on the display. This portable free-space data input device (20) can also be used as a free-space handwriting device. It is possible to adapt this pointing device in a design of a user-friendly remote control for a multimedia home entertainment system.
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