CMOS digital optical navigation chip

This invention relates generally to optical navigation, and more specifically to a CMOS chip on which an image is captured and then processed substantially on-chip in the digital domain. A CMOS digital integrated circuit digitally captures an image, generates a result surface on which a minima resid...

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Bibliographic Details
Main Authors Badyal, Rajeev, Knee, Derek L, Anderson, Mark Alan, Misek, Brian James
Format Patent
LanguageEnglish
Published 07.10.2003
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Summary:This invention relates generally to optical navigation, and more specifically to a CMOS chip on which an image is captured and then processed substantially on-chip in the digital domain. A CMOS digital integrated circuit digitally captures an image, generates a result surface on which a minima resides, and compares the result surfaces. The correlation of the result surfaces represents a best fit image displacement between image frames.