Extended position error signal linearization and normalization
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United States of America Patent
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Feb 13, 2001
Grant Date -
N/A
app pub date -
Jul 14, 1998
filing date -
Oct 10, 1997
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method of producing a position error signal includes storing a normal position error value generated from a normal servo field and a quadrature position error value generated from a quadrature servo field, where the normal servo field is ninety degrees out of phase from the quadrature servo field. A position error numerator is created by arithmetically combining the normal position error value and the quadrature position error value. A position error denominator is created based on the normal position error value and the quadrature position error value. The position error signal is produced by dividing the position error numerator by the position error denominator.
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