Phase locked synchronizer for printer timing control

Details Phase locked synchronizer for printer timing control Phase locked synchronizer for printer timing control

1984-08-29

1986-03-04

Goldberg, E. A.

Recorders

Record receiver deforming

346138, 346140R, G01D 1518, G01D 1524

Patent

active

045742910

ABSTRACT:
An apparatus for generating a trigger signal having pulses synchronized with selectable angular displacement of a rotating object. The apparatus comprises a position encoder to monitor the rotation of the rotating object and to produce M output signal pulses during each revolution of the object, a frequency multiplier coupled to generate an output signal having a frequency N times the frequency of the position encoder output signal, and a frequency divider coupled to generate a pulsed trigger signal of frequency 1/Mth of the frequency of the frequency multiplier output signal, N being a selected integer and M normally being fixed by the physical contruction. The trigger signal comprises N pulses per revolution of the object and the angular displacement of the rotating object associated with each pulse of the trigger signal is selected by appropriate adjustment of N.

REFERENCES:
patent: 4065773 (1977-12-01), Berry
patent: 4097873 (1978-06-01), Martin
patent: 4480215 (1984-10-01), Bax
patent: 4498034 (1985-02-01), Shirakawa

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