Magnetic sensor with high and low resolution tracks
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United States of America Patent
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Aug 16, 2011
Grant Date -
Jan 8, 2009
app pub date -
Jan 12, 2007
filing date -
Jan 12, 2006
priority date (Note) -
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Abstract
A sensing apparatus that includes first and second magnet assemblies. The first magnet assembly includes first and second magnets that have respective first and second opposite magnetic fields, and respective first and second dimensions. The first dimension is relatively smaller than the second dimension. The second magnet assembly is positioned at a distance from the first magnet assembly. The second magnet assembly includes a third magnet that has a third magnetic field which is opposite to the first magnetic field.
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