Optical navigation device and method thereof
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United States of America Patent
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Dec 16, 2008
Grant Date -
Aug 21, 2008
app pub date -
Feb 20, 2007
filing date -
May 19, 2006
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Abstract
An optical navigation device and a method thereof, wherein the optical navigation device comprises a pair of linear sensor arrays which are arranged non-parallel to each other for detecting light signal. Furthermore, an algorithm including correlation and vector analysis is processed by a computation unit to determine velocity and displacement according to present and previous light signal data sequences. Hence, the linear sensor arrays adapted to be the approach of navigation device can achieve the goal of reducing the computing data, increasing operation speed effectively and reducing hardware cost because of its fewer optically sensitive elements.
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