Recording apparatus with position dependent pulse modulation

Details Recording apparatus with position dependent pulse modulation Recording apparatus with position dependent pulse modulation

1988-02-03

1989-12-05

Miller, Jr., George H.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

346 60, G01D 942, G01D 1514

Patent

active

048855944

ABSTRACT:
In a recording apparatus, a laser beam with the pulse modulated corresponding to image data scans an objective plane by a deflection device. On that occasion, a plurality of select signals are generated corresponding to the position of the laser beam on the scanning line based on the start signal indicating the start of scanning by the laser beam. The generated reference pulse is frequency-divided to form a plurality of pulse signals having a different width. One of the pulse signals is selected by the select signal and the image data is processed based on the selected pulse signal. The select signal is set to make a wide pulse signal correspond to the central portion of the scanning line and a narrow pulse signal correspond to both end portions of the scanning line.

REFERENCES:
patent: 4037231 (1977-07-01), Broyles et al.
patent: 4717925 (1988-01-01), Shibata et al.
patent: 4768043 (1988-08-01), Saito et al.

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