INTERACTIVE INPUT SYSTEM AND METHOD
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United States of America Patent
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Issued Date -
Sep 12, 2013
app pub date -
Mar 6, 2012
filing date -
Mar 6, 2012
priority date (Note) -
Abandoned
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Abstract
An interactive input system comprising: a pair of transparent panels separated in a parallel-spaced relationship defining a passage therebetween; a radiation structure directing radiation towards the pair of transparent panels, a first portion of the radiation redirected towards the passage in response to at least one pointer brought into proximity with a surface of one of the transparent panels, and a second portion of the first portion of radiation reflected by the other of the transparent panels back towards the passage; at least two imaging devices positioned adjacent to the pair of transparent panels, each of the at least two imaging devices having a field of view looking into the passage and capturing image frames thereof, the at least two imaging devices capturing the image frames from different vantages; and processing structure for processing the image frames to determine a location of the at least one pointer.
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