Machinery for improving performance irregularities arising...

Details Machinery for improving performance irregularities arising... Machinery for improving performance irregularities arising...

2006-05-16

2006-05-16

Picard, Leo (Department: 2125)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Mechanical control system

C702S056000, C248S638000

Reexamination Certificate

active

07047109

ABSTRACT:
A machinery is disclosed that comprises a movable body that moves linearly with respect to a main body and an active damper for controlling an inherent vibration of the movable body occurred in a direction of movement of the movable body, the active damper comprising a sensor, provided with the movable body, for detecting the inherent vibration currently occurred in the direction of movement of the movable body, among one or a plurality of the inherent vibrations of the movable body; an actuator, provided with the movable body, for generating a vibration in the direction of movement of the movable body; and a controller for allowing the actuator to generate the vibration having a negative phase relationship with respect to the inherent vibration detected by the sensor.

REFERENCES:
patent: 5086564 (1992-02-01), Schalz
patent: 5553514 (1996-09-01), Walkowc
patent: 6140790 (2000-10-01), Heine et al.
patent: 2002/0104950 (2002-08-01), Mayama
English translation of Japanese Patent Abstract Publication No. 2000-216082 published Aug. 4, 2000, 26 pages.
English translation of Japanese Patent Abstract Publication No. 2000-243811 published Sep. 8, 2000, 20 pages.
English translation of Japanese Patent Abstract Publication No. 2001-118773 published Apr. 27, 2001, 40 pages.
English translation of Japanese Patent Abstract Publication No. 2001-230178 published Aug. 24, 2001, 32 pages.
English translation of Japanese Patent Abstract Publication No. 2002-170765 published Jun. 14, 2002, 24 pages.
English translation of Japanese Patent Abstract Publication No. 2002-175963 published Jun. 21, 2002, 25 pages.

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