Position determination utilizing a cordless device

Details Position determination utilizing a cordless device Position determination utilizing a cordless device

2005-04-21

2009-10-27

Dinh, Duc Q (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

C356S615000, C341S020000

Reexamination Certificate

active

07609249

ABSTRACT:
A system for generating position information includes a reflector, an image collection system, and a processor. The image collection system is configured to collect at least two sets of image data, where one set of image data includes a stronger indication of the reflector than the other set of image data. The two sets of image data can be collected in many different ways and may include using a retroreflector as the reflector. The two sets of image data are used to generate position information related to the reflector. In particular, position information related to the reflector is generated by taking the difference between the two set of image data. Because one set of image data includes a stronger indication of the reflector than the other set of image data, the difference between the two sets of image data gives a definitive indication of the reflector's position.

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