Method and apparatus for print image enhancement

Details Method and apparatus for print image enhancement Method and apparatus for print image enhancement

1989-10-25

1990-06-12

Griffin, Donald A.

Recorders

Electric recording

Electrochemical

346160, G01H 1514

Patent

active

049336894

ABSTRACT:
A method for enhancing a displayed image of a display apparatus which produces a digitized image in a dot matrix format comprising: generating a first digital data signal comprising unitary signal pulses representative of continuous line portions of a character to be displayed; and generating a second digital data signal having sets of pulses corresponding to each unitary signal pulse in the first data signal, each set of pulses in the second data signal comprising a leading pulse and a trailing pulse, the leading pulse in each set of pulses being of equal duration and equal interval spacing from the immediately following pulse, the trailing pulse in each set of pulses being of equal duration and of equal interval spacing from the immediately preceding pulse.

REFERENCES:
patent: 4460909 (1984-07-01), Bassetti et al.
patent: 4544264 (1985-10-01), Bassetti et al.
patent: 4544922 (1985-10-01), Watanabe et al.
patent: 4553173 (1985-11-01), Kawamura
patent: 4625222 (1986-11-01), Bassetti et al.
patent: 4715006 (1987-12-01), Nagata
patent: 4786923 (1988-11-01), Shimizu
patent: 4847641 (1989-07-01), Tung

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