Apparatus for controlling the position of a screen pointer...

Details Apparatus for controlling the position of a screen pointer... Apparatus for controlling the position of a screen pointer...

2004-09-01

2008-09-09

Mengistu, Amare (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

C382S261000, C382S272000, C345S156000, C345S163000, C250S221000

Reexamination Certificate

active

07423633

ABSTRACT:
An apparatus for controlling the position of a screen pointer includes an at least partially coherent light source for illuminating an imaging surface, thereby generating reflected images. The apparatus includes a navigation sensor for generating digital images based on the reflected images, performing a movement computation based on the digital images, generating movement data based on the movement computation that is indicative of relative motion between the imaging surface and the apparatus, wherein the movement computation includes attenuating fixed pattern noise in the digital images.

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