Geometrical instruments – Indicator of direction of force traversing natural media – Magnetic field responsive
Reexamination Certificate
2007-10-11
2008-05-27
Guadalupe-McCall, Yaritza (Department: 2859)
Geometrical instruments
Indicator of direction of force traversing natural media
Magnetic field responsive
C033S35500D, C033S365000
Reexamination Certificate
active
07377046
ABSTRACT:
A mobile device or the like having a 3-axis electronic compass is rotated, and the outputs from magnetic sensors disposed in the three axis directions are input to a first arithmetic processing unit (11) so as to obtain the magnetic data X, Y, and Z. By inputting the magnetic data X, Y, and Z to a second arithmetic processing unit (12), gains Gx and Gz can be obtained. A control unit (16) generates access codes x0and z0corresponding to the gains Gx and Gz. The correspondence between the access codes x0and z0and inclination angle (pitch angle) α or between the gains Gx and Gz and inclination angle (pitch angle) α is tabulated and stored in a memory unit (17). The control unit (16) accesses the memory unit (17) so as to obtain an inclination angle (pitch angle) α0corresponding to the access codes x0and z0.
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International Search Report dated Jul. 3, 2006 from corresponding International Application No. PCT/JP2006/307642.
Alps Electric Co. ,Ltd.
Beyer Law Group LLP
Guadalupe-McCall Yaritza
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