Pen input device for high resolution displays

Computer graphics processing and selective visual display system – Display peripheral interface input device – Stylus

Patent

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Details

345145, 345156, 345180, G09G 500

Patent

active

059331356

ABSTRACT:
A pen input system and method is disclosed for identifying a cursor location on a high resolution display. A pen includes a pointer for pointing to a desired point on a display screen for positioning of the cursor. A low resolution locator generally localizes the point to which the pen is pointing at a first location in a host processor, through a cursor control, and positions the cursor at the first location. The pen includes an imager for viewing an image of a portion of the screen including the cursor and the desired point to which the pen is pointing. The host processor can determine a variance between the desired point, which is the center point of the image viewed by the imager in the pen and the actual cursor location. This variance is determined by the processor which then repositions the cursor at the desired point.

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