Dual mode printer servo with improved velocity signal generator

Details Dual mode printer servo with improved velocity signal generator Dual mode printer servo with improved velocity signal generator

1983-09-27

1985-06-11

Dobeck, B.

Electricity: motive power systems

Positional servo systems

Digital or numerical systems

318592, 318618, G05B 1930

Patent

active

045231370

ABSTRACT:
In a dual mode servo for a rotary printer control system for controlling the velocity and position of a rotary print wheel and a print wheel carriage, the analog counterpart of a digital desired velocity multibit character is generated by a bidirectional digital to analog converter so that the analog desired velocity signal has a maximum value range lying both above and below a zero reference level, thereby eliminating the need for additional analog level converting circuitry.

REFERENCES:
patent: 3721882 (1973-03-01), Helms
patent: 4245298 (1981-01-01), Slater
patent: 4446408 (1984-05-01), Ebermann et al.
patent: 4469993 (1984-09-01), Swanson et al.
patent: 4473786 (1984-09-01), Miyashita et al.
patent: 4484118 (1984-11-01), Manabe et al.

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