Scanner system

Electricity: motive power systems – Positional servo systems – 'reset' systems

Reexamination Certificate

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Details

C318S609000, C318S560000, C318S621000, C700S014000, C700S041000, C700S045000, C700S058000, C700S059000, C700S042000, C700S043000

Reexamination Certificate

active

07432681

ABSTRACT:
A scanner system includes a servo control unit. A rotation angle of a rotating shaft supporting a mirror is detected, and an error of the detected value with respect to a commanded value is integrated by an integral compensator so that the detected value is able to track the commanded value. A tracking error proportional compensator is disposed in parallel with the integral compensator so as to add a correction value proportional to the error to the integrated value of the error. A plurality of gains are prepared for each of the integral compensator, the tracking error proportional compensator, a detected value proportional compensator and a detected value differential compensator of the servo control unit. Each gain is changed in accordance with a travel angle of the commanded value. Thus, the mirror can be positioned quickly so that the machining speed can be improved.

REFERENCES:
patent: 4432083 (1984-02-01), Hsieh et al.
patent: 4435798 (1984-03-01), Taub
patent: 4669074 (1987-05-01), Hsieh et al.
patent: 4674076 (1987-06-01), Hsieh et al.
patent: 5059021 (1991-10-01), Spence et al.
patent: 6198246 (2001-03-01), Yutkowitz
patent: 6218803 (2001-04-01), Montagu et al.
patent: 6703603 (2004-03-01), Tohyama et al.
patent: 6768100 (2004-07-01), Brown
patent: 7035694 (2006-04-01), Ramamoorthy et al.
patent: 2003/0102427 (2003-06-01), Tohyama et al.
patent: 2004/0135534 (2004-07-01), Cullen
patent: 2000-28955 (2000-01-01), None
patent: 2002-196274 (2002-07-01), None

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