Electricity: measuring and testing – Magnetic – Displacement
Reexamination Certificate
2005-11-29
2005-11-29
LeDynh, Bot (Department: 2862)
Electricity: measuring and testing
Magnetic
Displacement
C324S207200
Reexamination Certificate
active
06969988
ABSTRACT:
An angle detection apparatus for detecting an angle of a rotatable magnetic field source comprises first and second magnetic sensor units for detecting first and second magnetic components of the magnetic field of the magnetic field source, driving means for driving the first and second magnetic sensor unit and control means. The control means control an output signal of the first magnetic sensor unit so as to have a fixed value and the driving means drive the second magnetic sensor unit according to the same drive conditions as those applied to the first magnetic sensor unit at the time when the first magnetic sensor unit is controlled by said control means so that an output signal of the second magnetic sensor unit is proportional to the tangent of said angle.
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Kakuta Katsumi
Schott Christian
Asahi Kasei EMD Corporation
LeDynh Bot
McCormick Paulding & Huber LLP
Sentron AG
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