Method and apparatus for calibrating an optical computer input system
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United States of America Patent
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Jan 19, 1993
Issued Date -
N/A
app pub date -
Nov 9, 1990
filing date -
Nov 7, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus facilitates the alignment and light sensitivity adjustment of an optical computer input system, which includes a user generated light directed onto a screen bearing a computer generated image, to convey information to the computer interactively by the user, even in a darkened room. The system discriminates between the user generated image, and the computer generated image. Devices facilitate the proper alignment of the system with the screen, as well as proper light sensitivity adjustments.
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