Method and apparatus for fingerprint motion tracking using an in-line array for use in navigation applications
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United States of America Patent
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Apr 24, 2012
Grant Date -
Mar 13, 2008
app pub date -
Sep 11, 2006
filing date -
Sep 11, 2006
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Abstract
The invention provides an independent relative motion sensor for use in navigation operations using a fingerprint that do not require the power demanded by conventional devices. The independent relative motion sensor includes a linear array of sensing elements that captures a narrow string of data that is indicative of fingerprint features along a relatively narrow sample. This string of data is used to determine the velocity of travel for use in navigation operations. Using multiple sensors, motion and direction data can be computed and used to provide two-dimensional direction for navigating an object, such as a cursor on a monitor. The invention can be incorporated in an electronic device to provide improved navigation operations that demand less power.
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