Electronic screening

Details Electronic screening Electronic screening

1989-06-06

1991-08-13

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358456, 358429, H04N 140

Patent

active

050400800

ABSTRACT:
A method of forming a plurality of printing screens, each having a selected frequency and angle, from a single masterdot of mxm elements where each element specifies a weight accorded a printing signal.

REFERENCES:
patent: 3911480 (1975-10-01), Brucker
patent: 4149183 (1979-04-01), Pellar et al.
patent: 4246614 (1981-01-01), Knox
patent: 4547814 (1985-10-01), Hirosawa
patent: 4780768 (1988-10-01), Tomohisa et al.

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