Electricity: measuring and testing – Magnetic – Displacement
Reexamination Certificate
2006-08-02
2010-06-01
Aurora, Reena (Department: 2858)
Electricity: measuring and testing
Magnetic
Displacement
C324S225000, C324S173000
Reexamination Certificate
active
07728584
ABSTRACT:
A rotation sensor includes a magnetic sensor array including magnetic sensor elements in line, a rotatable magnet confronting the magnetic sensor array, a signal readout circuit to read out a signal from the magnetic sensor array, a repeating section to cause the signal readout circuit to repeat reading out the signal from the magnetic sensor array several number of times, and to calculate a summation or an average of several readout signals, and an angle calculating circuit to detect an angle of rotation of the magnet from the summation or the average of the signals calculated by the repeating section.
REFERENCES:
patent: 5-128342 (1993-05-01), None
patent: 2003-148999 (2003-05-01), None
patent: 2004-37133 (2004-02-01), None
patent: 2004-239699 (2004-08-01), None
patent: 2005-43070 (2005-02-01), None
patent: 2005-140737 (2005-06-01), None
International Search Report (PCT/ISA/210) mailed Sep. 19, 2006 in connection with the International Application PCT/JP2006/315315.
International Preliminary Report on Patentability issued in corresponding International Patent Application No. PCT/JP2006/315315, mailed on Feb. 28, 2008.
Aurora Reena
NTN Corporation
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