Cesar R Nino from 304 Braemar St, Middletown, DE 19709, age 60, Phone: (302)3788990

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Work:

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Position:

E at D

Location:

United States

Industry:

Construction

Work:

D
E

Ink Jet Printing Apparatus Having A Programmed Controller That Minimizes Banding Artifacts
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US Patent:

7503641, Mar 17, 2009
Filed:

Jun 21, 2007
Appl. No.:

11/820888
Inventors:

Cesar Leonardo Nino - Newark DE, US
Assignee:

E.I. du Pont de Nemours and Company - Wilmington DE
International Classification:

B41J 2/15
B41J 2/145
US Classification:

347 41, 347 15
Abstract:

A multipass printing apparatus is characterized by a computer-implemented controller that controls printing operation so that, on any given pass, the number of selected print locations onto which printing ink is deposited by each of N nozzles varies from nozzle to nozzle. The variation is governed in accordance with a weighted smoothing spline function, particularly a polynomial B-spline function of the order “j”, where j is a value equal to one less than the number of passes.

Computer Readable Medium With A Program For Minimizing Banding Artifacts In An Ink Jet Printing Apparatus
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US Patent:

7513597, Apr 7, 2009
Filed:

Jun 21, 2007
Appl. No.:

11/820837
Inventors:

Cesar Leonardo Nino - Newark DE, US
Assignee:

E. I du Pont de Nemours and Company - Wilmington DE
International Classification:

B41J 2/15
B41J 2/145
US Classification:

347 41, 347 15
Abstract:

A computer readable medium contains a program for causing a printer to execute a multipass printing method characterized in that, on any given pass, the number of selected print locations onto which printing ink is deposited by each of N nozzles varies from nozzle to nozzle. The variation is governed in accordance with a weighted smoothing spline function, particularly a polynomial B-spline function of the order “j”, where j is a value equal to one less than the number of passes.

Method For Minimizing Banding Artifacts In An Ink Jet Printing Apparatus
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US Patent:

7914097, Mar 29, 2011
Filed:

Jun 21, 2007
Appl. No.:

11/820889
Inventors:

Cesar Leonardo Nino - Newark DE, US
Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE
International Classification:

B41J 2/205
US Classification:

347 15, 347 19
Abstract:

A multipass printing method is characterized in that, on any given pass, the number of selected print locations onto which printing ink is deposited by each of N nozzles varies from nozzle to nozzle. The variation is governed in accordance with a weighted smoothing spline function, particularly a polynomial B-spline function of the order “j”, where j is a value equal to one less than the number of passes.

Method For Modeling Color Halftones
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US Patent:

20040090640, May 13, 2004
Filed:

Nov 7, 2002
Appl. No.:

10/289397
Inventors:

Cesar Nino - Newark DE, US
Gonzalo Arce - Newark DE, US
International Classification:

H04N001/52
H04N001/56
US Classification:

358/001900, 358/504000, 358/534000
Abstract:

A method for modeling color halftones that reduces both the number of parameters and the number of measurements needed to characterize an inkjet color printer. The method is based on the eigenanalysis of sample reflectance data and a probabilistic analysis that considers light scattering on the paper substrate as a breakage process governed by a log-normal distribution. The method estimates the reflectance of a print color by characterizing colors as a multiplicative composition of primary color reflectances rather than as an additive mixture of primary and secondary color reflectances as suggested by the theory of Neugebaeur.