Handheld portable user device and method for the...

Data processing: presentation processing of document – operator i – Operator interface – Presentation to audience interface

Reexamination Certificate

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Details

C715S732000, C715S856000, C715S864000, C345S157000, C345S158000

Reexamination Certificate

active

07134078

ABSTRACT:
A presentation system and a user device for use as a presentation aid is disclosed. The system comprises presentation means (5) for presenting images that associate with a presentation. Pointer means (4) are used for provision of a pointer on an image (11) presented by means of the presentation means. Detector means (8) are for detecting the pointer on the image and for determining the location of the pointer relative to the image. Control means (6) are adapted to provide at least one control function for the presentation based on information from the detector means.

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Kirstein. Carsten. et al.; “Interaction with a projection screen using a camera-tracked laser pointer”; Informatik VII (Computer Graphics): University of Dortmund. D-44221 Dortmund. Germany: http://1s7-www.informatik.uni-dortmund.de: 2 pages.

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