Electricity: motive power systems – Positional servo systems – Adaptive or optimizing systems including 'bang-bang' servos
Patent
1983-02-02
1984-07-10
Dobeck, B.
Electricity: motive power systems
Positional servo systems
Adaptive or optimizing systems including 'bang-bang' servos
318618, 364148, G05B 1300
Patent
active
044595255
ABSTRACT:
A speed control system for a selection servomotor of an impact printer or the like employs a speed table which represents a series of speed data which are respectively matched with various differences between real and mark positions of a motor shaft. The speed table is stored to be selectively read out when addressed. A difference between real and mark positions of the motor shaft is added to a head address of the speed table, and the sum is used as an initial address for reading data out of the speed table. Thereafter, the speed data are sequentially read out up to the head address in accordance with the rotation of the motor shaft, so that the motor is driven in response to such various data. A plurality of such speed tables are prepared to vary the speed profile in matching relation with a specific initial value of the difference between the real and mark positions of the motor shaft. One of the speed tables is selected in accordance with an initial value of the difference between the real and mark positions.
REFERENCES:
patent: 4031443 (1977-06-01), Droux et al.
patent: 4200827 (1980-04-01), Oswald
patent: 4288731 (1981-09-01), Lee
patent: 4311945 (1982-01-01), Aoyama
patent: 4340848 (1982-07-01), Hanagata et al.
patent: 4404505 (1983-09-01), Swanson et al.
patent: 4423365 (1983-12-01), Turner
Alexander David G.
Dobeck B.
Ricoh & Company, Ltd.
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