Electricity: motive power systems – Plural diverse motor controls – Running-speed control
Reexamination Certificate
2008-05-27
2008-05-27
Leykin, Rita (Department: 2837)
Electricity: motive power systems
Plural diverse motor controls
Running-speed control
C318S254100, C318S560000, C318S255000, C318S300000, C318S445000, C388S800000, C388S803000, C388S823000, C388S825000, C388S834000
Reexamination Certificate
active
10752601
ABSTRACT:
Information indicative of the placement of spindle motor components may be obtained and used to provide a correction to one or more BEMF-derived attributes used to control the spindle speed. In some implementations, first and second signals indicative of BEMF of different stator windings may be used to determine a speed-related characteristic. The speed related characteristic may be used to determine an error amount, which may be used to determine a correction factor to control the speed of the spindle motor.
REFERENCES:
patent: 5631999 (1997-05-01), Dinsmore
patent: 5687036 (1997-11-01), Kassab
patent: 5808440 (1998-09-01), Bennett et al.
patent: 5818179 (1998-10-01), Kokami et al.
patent: 5869946 (1999-02-01), Carobolante
patent: 5982130 (1999-11-01), Male
patent: 6078158 (2000-06-01), Heeren et al.
patent: 6084364 (2000-07-01), Menegoli
patent: 6163118 (2000-12-01), Chen et al.
patent: 6163120 (2000-12-01), Menegoli
patent: 6476996 (2002-11-01), Ryan
patent: 6493169 (2002-12-01), Ferris et al.
patent: 6498446 (2002-12-01), Menegoli et al.
patent: 6563666 (2003-05-01), LaPanse
patent: 6577088 (2003-06-01), Heydt et al.
patent: 6754151 (2004-06-01), Watt
patent: 2002/0136127 (2002-09-01), Watt
Office action dated May 3, 2006 from related case U.S. Appl. No. 10/830,861.
Office action dated Jan. 24, 2007 from related case U.S. Appl. No. 10/830,861.
Richgels Jerry
Sutardja Pantas
Leykin Rita
Marvell International Ltd.
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