Electricity: motive power systems – Positional servo systems – With particular 'error-detecting' means
Reexamination Certificate
2007-07-17
2007-07-17
Fletcher, Marlon (Department: 2837)
Electricity: motive power systems
Positional servo systems
With particular 'error-detecting' means
C318S635000, C318S687000
Reexamination Certificate
active
10378430
ABSTRACT:
A method of controlling the speed and position of a motor includes receiving a pulse train indicative of the speed of the motor, and a periodic signal at a frequency greater than the pulse train. The number of cycles of the periodic signal per cycle of the pulse train is counted, and compared to a predetermined number. The speed of the motor is adjusted to match the count to the predetermined number, thus effecting speed control. A command position signal defining a plurality of sampling points is generated. The number of cycles of the periodic signal between a sampling point of the command position signal and an operative edge of the pulse train is counted and compared to a predetermined number. The speed of the motor is further adjusted to match the count to the predetermined number, thus effecting position control.
REFERENCES:
patent: 4153863 (1979-05-01), Schachte et al.
patent: 4415844 (1983-11-01), Mendenhall et al.
patent: 4522517 (1985-06-01), Wade et al.
patent: 4623827 (1986-11-01), Ito
patent: 4638225 (1987-01-01), Morinaga et al.
patent: 4689540 (1987-08-01), Tani et al.
patent: 4885575 (1989-12-01), Williams
patent: 5089761 (1992-02-01), Nakazawa
patent: 5444345 (1995-08-01), Jinnai
patent: 5532583 (1996-07-01), Davis et al.
patent: 5625264 (1997-04-01), Yoon
patent: 5737483 (1998-04-01), Inaji et al.
patent: 6043622 (2000-03-01), Shiomi et al.
patent: 6438321 (2002-08-01), Lin
patent: 6505127 (2003-01-01), Togami
patent: 6591200 (2003-07-01), Cohen et al.
patent: 6736475 (2004-05-01), Youngberg et al.
patent: 2002/0050939 (2002-05-01), Yu
patent: 2002/0172510 (2002-11-01), Kobayashi et al.
patent: 2004/0252142 (2004-12-01), Struk et al.
Chapman Danny Keith
Turney Steven Michael
Coats & Bennett PLLC
Fletcher Marlon
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