Adaptable spatial notch filter

Details Adaptable spatial notch filter Adaptable spatial notch filter

2005-11-08

2005-11-08

Leykin, Rita (Department: 2837)

Electricity: motive power systems

Automatic and/or with time-delay means

Sound, supersonic vibration or mechanical vibration

C318S461000, C318S463000, C318S128000, C318S480000

Reexamination Certificate

active

06963184

ABSTRACT:
A spatial notch filter is described that adapts in accordance with changes to an angular velocity of a rotating component within a manufacturing system. In a manufacturing system, noise may appear in feedback signals due to spatially distributed physical features in the system, such as imperfections in the components or sensors. This noise may be concentrated in a frequency band that changes as the angular velocity of rotating system components changes. The invention provides techniques for filtering this noise with one or more notch filters, and for adapting the center frequency of the notch filter as a function of angular velocity. The center frequency of the notch filter tracks the noise when the noise frequency changes.

REFERENCES:
patent: 4088934 (1978-05-01), D'Atre et al.
patent: 4454428 (1984-06-01), Kimmel et al.
patent: 4924166 (1990-05-01), Roussel
patent: 4980625 (1990-12-01), Shimada
patent: 5331299 (1994-07-01), Smith
patent: 5404418 (1995-04-01), Nagano
patent: 5559689 (1996-09-01), Kirchberg et al.
patent: 5666158 (1997-09-01), Sekine et al.
patent: 5833173 (1998-11-01), Tran et al.
patent: 5889398 (1999-03-01), Reck et al.
patent: 5929700 (1999-07-01), Fuller et al.
patent: 5960091 (1999-09-01), White et al.
patent: 6144181 (2000-11-01), Rehm et al.
patent: 6211640 (2001-04-01), Fujisaki et al.
patent: 6212540 (2001-04-01), Murakami et al.
patent: 6219196 (2001-04-01), Semba et al.
patent: 6274995 (2001-08-01), Kerner
patent: 6426545 (2002-07-01), Eichelberger et al.
patent: 6566837 (2003-05-01), Zhang et al.
patent: 1 191 310 (2002-03-01), None
patent: 2 266 976 (1993-11-01), None
patent: 58 060315 (1983-04-01), None
patent: 01 170396 (1989-07-01), None
patent: 2002 188936 (2002-07-01), None
patent: 1084934 (1984-04-01), None

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