Patents by Inventor Joseph W. Stellbrink
Joseph W. Stellbrink has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220036147Abstract: In some examples, classification based printing material set selection may include analyzing a preliminary rendering. Classification based printing material set selection may further include generating raster data based at least in part on a further rendering of the print data, and generating further print data including the raster data.Type: ApplicationFiled: October 14, 2021Publication date: February 3, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Joseph W. STELLBRINK, April E. SULLIVAN
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Patent number: 11176431Abstract: In some examples, classification based printing material set selection may include analyzing a preliminary rendering of print data. Classification based printing material set selection may further include generating raster data based at least in part on a further rendering of the print data, and generating further print data including the raster data.Type: GrantFiled: September 21, 2016Date of Patent: November 16, 2021Assignee: Hewlett-Packard Development Company, L.P.Inventors: Joseph W. Stellbrink, April E. Sullivan
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Publication number: 20210279535Abstract: In some examples, classification based printing material set selection may include analyzing a preliminary rendering. Classification based printing material set selection may further include generating raster data based at least in part on a further rendering of the print data, and generating further print data including the raster data.Type: ApplicationFiled: September 21, 2016Publication date: September 9, 2021Applicant: Hewlett-Packard Development Company, L.P.Inventors: Joseph W. Stellbrink, April E. Sullivan
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Publication number: 20210279534Abstract: In some examples, print mode quality selection may include determining, based on a preliminary rendering of print data, resulting pixel tones. Print mode quality selection may further include generating raster data based at least in part on a further rendering of the print data, and generating further print data including the raster data and a specified print mode.Type: ApplicationFiled: September 21, 2016Publication date: September 9, 2021Applicant: Hewlett-Packard Development Company, L.P.Inventors: Joseph W. Stellbrink, April E. Sullivan
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Patent number: 8696082Abstract: Expansion effects of moisture on media resulting from ejection of fluid by the fluid-ejection device onto the media within a print zone in accordance with a portion of a print job are inferred. In response to inferring the expansion effects of moisture on the media, an action is performed to counteract the expansion effects of moisture on the media.Type: GrantFiled: April 15, 2009Date of Patent: April 15, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventors: Whitney Elaine Loper, Timothy Jay Bouma, Ryan Newman, Joseph W. Stellbrink
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Patent number: 8670155Abstract: In an implementation, conversion of K-only data from a source CMYK color space to a destination CMYK color space is managed. The destination CMYK color space is transformed to a virtual RGB color space, in which a neutral axis of the virtual RGB color space is set to be mapped to destination K-only output colors in a color separation table for mapping of source K-only grays to destination K-only grays. The source CMYK color space is converted to a device independent color space and the conversion is adjusted such that the source K-only grays are forced to have the same chrominance as the neutral axis of the virtual RGB color space in the color separation table. The LUT is generated to include a K-only mapping by combining the virtual RGB color space with the adjusted conversion of the source K-only grays.Type: GrantFiled: July 19, 2012Date of Patent: March 11, 2014Assignee: Hewlett-Packard Developmment Company, L.P.Inventors: Huanzhao Zeng, Joseph W. Stellbrink
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Publication number: 20140022570Abstract: In an implementation, conversion of K-only data from a source CMYK color space to a destination CMYK color space is managed. The destination CMYK color space is transformed to a virtual RGB color space, in which a neutral axis of the virtual RGB color space is set to be mapped to destination K-only output colors in a color separation table for mapping of source K-only grays to destination K-only grays. The source CMYK color space is converted to a device independent color space and the conversion is adjusted such that the source K-only grays are forced to have the same chrominance as the neutral axis of the virtual RGB color space in the color separation table. The LUT is generated to include a K-only mapping by combining the virtual RGB color space with the adjusted conversion of the source K-only grays.Type: ApplicationFiled: July 19, 2012Publication date: January 23, 2014Inventors: Huanzhao Zeng, Joseph W. Stellbrink
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Publication number: 20120026233Abstract: Expansion effects of moisture on media resulting from ejection of fluid by the fluid-ejection device onto the media within a print zone in accordance with a portion of a print job are inferred. In response to inferring the expansion effects of moisture on the media, an action is performed to counteract the expansion effects of moisture on the media.Type: ApplicationFiled: April 15, 2009Publication date: February 2, 2012Inventors: Whitney Elaine Loper, Timothy Jay Bouma, Ryan Newman, Joseph W. Stellbrink
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Publication number: 20120001842Abstract: A display includes a first sub-pixel and a second sub-pixel. The first sub-pixel includes a first electrokinetic display element and a first color filter over the first electrokinetic display element. The first electrokinetic display element includes a fluid with first colorants and second colorants. The second sub-pixel is laterally directly adjacent to the first sub-pixel. The second sub-pixel includes a second electrokinetic display element and a second color filter over the second electrokinetic display element. The second electrokinetic display element includes the fluid with the first colorants and the second colorants.Type: ApplicationFiled: June 30, 2010Publication date: January 5, 2012Inventor: Joseph W. Stellbrink
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Patent number: 8036456Abstract: An image rendering method for masking a visual defect is disclosed. In an embodiment, the method includes determining a location of the visual defect, identifying a plurality of sub-pixels neighboring the visual defect and utilizing contrast sensitivity functions and visual masking characteristics of a human visual system to optimize adjustments to the plurality of neighboring sub-pixels to mask the visual defect.Type: GrantFiled: July 18, 2007Date of Patent: October 11, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventor: Joseph W. Stellbrink
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Publication number: 20100090936Abstract: Devices, systems, mediums, and methods for providing a layered color display are disclosed. One method of displaying images includes configuring a reflective color display in a layered manner to display a first portion of an image in a lower layer and to display a second portion of an image in a number of upper layers by decoupling imaging functions of a number of upper layers of a reflective color display device from imaging functions of a lower layer of a reflective color device, driving the lower layer with an active matrix back plane thin film transistor (TFT), and addressing the number of upper layers passively.Type: ApplicationFiled: October 14, 2008Publication date: April 15, 2010Inventors: Charles G. Dupuy, William A. Fischer, Joseph W. Stellbrink, Peter J. Fricke
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Publication number: 20080063256Abstract: An image rendering method for masking a visual defect is disclosed. In an embodiment, the method includes determining a location of the visual defect, identifying a plurality of sub-pixels neighboring the visual defect and utilizing contrast sensitivity functions and visual masking characteristics of a human visual system to optimize adjustments to the plurality of neighboring sub-pixels to mask the visual defect.Type: ApplicationFiled: July 18, 2007Publication date: March 13, 2008Inventor: Joseph W. Stellbrink
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Patent number: 7325912Abstract: In one embodiment, a reservoir for holding a fluid includes a housing defining an enclosed chamber, the housing having a first opening therein at one part of the chamber and a second opening therein at a second part of the chamber above the first part of the chamber, a breachable seal sealing the second opening, and a circuitous tunnel exposing the chamber to the atmosphere through the second opening if the seal is breached.Type: GrantFiled: October 6, 2004Date of Patent: February 5, 2008Assignee: Hewlett-Packard Development Company, L.P.Inventors: William E. Lewey, Eric L. Ahlvin, Joseph W. Stellbrink, Daniel Fradl
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Publication number: 20080018577Abstract: A display element corresponds to a pixel of a display. The display element includes a top electrode connected to a first addressable line of the display, and a bottom electrode connected to a second addressable line of the display. The display element includes a display mechanism situated between the top electrode and the bottom electrode and having a number of individually turned-on steps. Each individually turned-on step has a turn-on voltage threshold at which the step is turned on upon a voltage applied between the top and the bottom electrodes equal to or greater than the turn-on voltage threshold. Each individually turned-on step has a turn-off voltage threshold at which the step is turned off upon a voltage applied between the top and the bottom electrodes equal to or less than the turn-off voltage threshold.Type: ApplicationFiled: July 23, 2006Publication date: January 24, 2008Inventors: Peter James Fricke, Alan R. Arthur, Joseph W. Stellbrink
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Publication number: 20080018576Abstract: A display element corresponds to a pixel of a display. The display element includes a first electrode connected to a first addressable line of the display, and a number of second electrodes, each of which is connected to a corresponding second addressable line of the display. The display element includes a display mechanism situated between the first and the second electrodes, and which has a number of individually turned-on steps organized into a number of groups corresponding to the number of second electrodes. For each group of the individually turned-on steps, each step of the group has a turn-on voltage threshold at which the step is turned on upon a voltage applied between the first electrode and the second electrode to which the group corresponds that is equal to or greater than the turn-on voltage threshold.Type: ApplicationFiled: July 23, 2006Publication date: January 24, 2008Inventors: Peter James Fricke, Alan R. Arthur, Joseph W. Stellbrink, Tim R. Koch
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Publication number: 20080018673Abstract: A display element corresponds to a display of a pixel. The display element includes a number of sub-pixel regions. Each sub-pixel region has two states, including an on state and an off state. Each sub-pixel region has an area. The display has a defined area that is turned on to provide maximum lightness and that encompasses at least one of the areas of the sub-pixel regions. The ratio of the area of each sub-pixel region to the defined area of the display element is selected to provide for the display element having a number of substantially equally spaced human visual system (HVS) perceived lightness levels.Type: ApplicationFiled: July 24, 2006Publication date: January 24, 2008Inventors: Peter James Fricke, Eric L. Ahivin, Joseph W. Stellbrink