Geometrical instruments – Miscellaneous – Light direction
Reexamination Certificate
2008-02-28
2009-12-29
Fulton, Christopher W (Department: 2841)
Geometrical instruments
Miscellaneous
Light direction
Reexamination Certificate
active
07637020
ABSTRACT:
A sensor determines the absolute angular position of a body that can rotate through rotations. The sensor includes two code wheels which rotate as the body rotates. The code wheels are driven at a different gear ratio such that the code wheels rotate faster than the body and the code wheels rotate at different rates. Two sensor elements respectively determine the rotational angle positions of the code wheels. The difference between the rotational angle positions is a beat angle. The different gear ratio is selected such that beat angle periods are in an angular measuring range of the sensor and the absolute angular positions of the code wheels in the beat angle periods is different. The absolute angular positions of the code wheels in successive beat angle periods is offset by the nth part of the measuring range of a sensor element, where n is number of beat angle periods.
REFERENCES:
patent: 5930905 (1999-08-01), Zabler et al.
patent: 6507188 (2003-01-01), Dilger et al.
patent: 6618688 (2003-09-01), Schodlbauer
patent: 6745116 (2004-06-01), Takuma et al.
patent: 6804888 (2004-10-01), Nishikawa et al.
patent: 6848187 (2005-02-01), Ito et al.
patent: 6861837 (2005-03-01), Shimizu et al.
patent: 6912791 (2005-07-01), Tateishi et al.
patent: 7040025 (2006-05-01), Inoue
patent: 7215114 (2007-05-01), Takuma
patent: 7258027 (2007-08-01), Oike et al.
patent: 7532005 (2009-05-01), Arakawa et al.
patent: 2003/0177649 (2003-09-01), Ito et al.
patent: 2004/0059486 (2004-03-01), Takuma et al.
patent: 2004/0257070 (2004-12-01), Takuma
patent: 2006/0032062 (2006-02-01), Besier et al.
patent: 2006/0042403 (2006-03-01), Oike et al.
patent: 2008/0005913 (2008-01-01), Kachouh
patent: 198 21 467 (1999-11-01), None
patent: 103 43 543 (2004-07-01), None
patent: 10 2004 029 249 (2005-01-01), None
patent: 0 877 916 (1998-11-01), None
patent: 1 321 745 (2003-06-01), None
patent: 1 536 217 (2005-06-01), None
Maier Oliver
Schirp Christian
Brooks & Kushman P.C.
Fulton Christopher W
Leopold Kostal GmbH & Co. KG
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