Pointing device and scanner, robot, mobile communication...

Details Pointing device and scanner, robot, mobile communication... Pointing device and scanner, robot, mobile communication...

2007-07-03

2007-07-03

Awad, Amr A. (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

Reexamination Certificate

active

10653277

ABSTRACT:
A pointing device is disclosed which does not require a tablet, such as a digitizer, and is mechanically simplified, and a scanner, a robot, a mobile communication device and an electronic dictionary using the pointing device. The pointing device includes a light source, a ball and an optical image sensor. The light source irradiates light. The ball rotates by the movement of the entire pointing device. The optical image sensor detects the movement of the pointing device using an image. The pointing device irradiate light onto the ball through the light source, acquires an image on a surface of the ball through the optical image sensor, and outputs data on movement direction and distance by comparing and analyzing previous and current images.

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