Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Reexamination Certificate
2006-10-17
2006-10-17
Donovan, Lincoln (Department: 2837)
Electricity: motive power systems
Positional servo systems
Program- or pattern-controlled systems
C318S445000, C318S453000, C318S454000, C700S121000, C700S115000
Reexamination Certificate
active
07122988
ABSTRACT:
This rotation driving apparatus includes a torque generating circuit72for generating a torque of a servo motor30with voltage supply from a power source71and a motor control circuit73for controlling rotation of the motor. In the torque generating circuit72, a condenser76is arranged to detect a level of the supplied voltage and a period of voltage drop. A voltage-drop information detected by the condenser76can be transmitted to a host controller70. The host controller70previously memorizes a power-recovery information having a voltage drop and a time under an instantaneous blackout capable of recovering within a predetermined period and a rotation control pattern information of the motor corresponding to the power-recovery information and further compares the voltage-drop information, the power-recovery information and the rotation control pattern information of the motor with each other. Based on a control signal, the controller70controls the rotation of the servo motor30. Then, by controlling the rotation in correspondence with the voltage drop during the driving of the motor, it is carried out to suppress increasing of a driving period, improving the throughput and restricting vibration due to a rotational standstill of the motor by the voltage drop.
REFERENCES:
patent: 3463984 (1969-08-01), Ross et al.
patent: 3852731 (1974-12-01), Hollands
patent: 4027246 (1977-05-01), Caccoma et al.
patent: 4031463 (1977-06-01), Norberg
patent: 4461003 (1984-07-01), Tamaki
patent: 4481449 (1984-11-01), Rodal
patent: 4604530 (1986-08-01), Shibuya
patent: 4650976 (1987-03-01), Hiraishi
patent: 4678063 (1987-07-01), Kitaoka et al.
patent: 4751521 (1988-06-01), Ogihara et al.
patent: 4767970 (1988-08-01), Rodal
patent: 4831469 (1989-05-01), Hanson et al.
patent: 4851985 (1989-07-01), Burror et al.
patent: 4862142 (1989-08-01), Knight
patent: 5085294 (1992-02-01), Iwata
patent: 5422808 (1995-06-01), Catanese et al.
patent: 5426355 (1995-06-01), Zweighaft
patent: 5519295 (1996-05-01), Jatnieks
patent: 5600217 (1997-02-01), Bartlett
patent: 5673194 (1997-09-01), Cipelletti et al.
patent: 5841964 (1998-11-01), Yamaguchi
patent: 5862054 (1999-01-01), Li
patent: 5929578 (1999-07-01), Atarashi
patent: 6026495 (2000-02-01), Lacombe et al.
patent: 6243838 (2001-06-01), Liu et al.
patent: 6304005 (2001-10-01), Aoki et al.
patent: 6393334 (2002-05-01), Lewis et al.
patent: 6404348 (2002-06-01), Wilfong
patent: 6434957 (2002-08-01), Nishizuka et al.
patent: 6533074 (2003-03-01), Tominaga et al.
patent: 6545443 (2003-04-01), Kushida
patent: 6809494 (2004-10-01), Hattori et al.
patent: 6862688 (2005-03-01), Ochiai
patent: 6909372 (2005-06-01), Iwanaga et al.
patent: 6909927 (2005-06-01), Nguyen
patent: 6922028 (2005-07-01), Akizuki
patent: 6958589 (2005-10-01), Kawaji et al.
patent: 6961201 (2005-11-01), Odai et al.
patent: 6972541 (2005-12-01), Matsushiro et al.
patent: 04-161096 (1992-06-01), None
patent: 06-084739 (1994-03-01), None
patent: 9-500519 (1997-01-01), None
patent: 2723764 (1997-11-01), None
patent: 10-150014 (1998-06-01), None
patent: 11-308894 (1999-11-01), None
Machine translation, Japanese Patent application JP 11-308894, Published May 11, 1999, Yaskawa Electric Corp.
Machine translation, Japanese Patent JP 273764, Published Mar. 25, 1994, Hitachi, Ltd.
Computer-generated translation of JP 10-150014.
Computer-generated translation of JP 2723764.
Patent Abstract of JP10-150014.
Donovan Lincoln
Horn Robert W.
Smith , Gambrell & Russell, LLP
LandOfFree
Rotation drive device and rotation drive method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotation drive device and rotation drive method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotation drive device and rotation drive method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3686398