Recorders – Performance of multiple functions of steam and gas engines – Pressure responsive element
Patent
1988-06-24
1989-08-22
Hartary, Joseph W.
Recorders
Performance of multiple functions of steam and gas engines
Pressure responsive element
346140R, 358298, 358 75, G01D 1516
Patent
active
048600261
ABSTRACT:
A method for halftone image recording, wherein dots are formed using two or more concentrations of ink, to express different image densities. Each picture element may comprise a plurality of cells, different predetermined members and patterns of which are actually printed in, to express different gradations. Different such patterns may be used for each ink concentration. Several such patterns, using only thin ink, may, for example, be used to express lower densities, several others, using only thick ink, for high densities, and still others, using dots of thin ink and dots of thick ink, for intermediate densities. For color image recording, different concentrations and different members of concentrations can be used for different colors.
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Stucki, P., "Electronic Halftoning for Color Reproduction", IBM Technical Disclosure Bulletin, vol. 20, No. 6, Nov. 1977, pp. 2423-2425.
Fukumoto Masami
Matsumoto Kentaro
Sugiura Susumu
Takaoka Makoto
Uda Toyokazu
Canon Kabushiki Kaisha
Hartary Joseph W.
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