Position detection of a light source
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
N/A
Issued Date -
Oct 14, 2004
app pub date -
Apr 8, 2003
filing date -
Apr 8, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A position detecting device has a first surface with an electromagnetic wave sensing matrix capable of generating position information regarding projections of multiple electromagnetic waves on the surface. A mask has two spaced apart holes for passing electromagnetic waves generated by an electromagnetic wave source when the mask is between the first surface and the source. A method of generating control signals comprises receiving electromagnetic radiation from the first point source at the mask and projecting the radiation from two apertures in the mask to a detection surface that is sensitive to the electromagnetic radiation The received radiation is converted into two sets of coordinates representative of three dimensional motion of the first point source. A device driver is used to perform the method.
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