| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a joystick controller to be used for the manual operation of a motorized wheelchair with a minimum number of parts. <P>SOLUTION: A manually-operated control for generating a vector signal comprises a handle 13 with an elongate axis pivotally mounted to the housing for universal rotation about a pivot point on the axis of the handle 13. An imaged surface moves in two directions with the rotation of the handle 13 about two perpendicular axes intersecting at the pivot point. A camera 23 and LED 26 are focused on the imaged surface. A microprocessor 25-based controller inputs and processes images sequentially input from the camera 23 for detecting and quantifying the movement of the imaged surface in two dimension and generates a vector signal indicative thereof. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
