Patents by Inventor Philip B Cowan
Philip B Cowan 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: 20160343113Abstract: A system for enhancing an image includes a cadence detection process that detects a cadence of a series of frames and a scene cut detection process that detects a scene cut of the series of frames. The system also includes a noise monitoring process that detects noise in the series of frames based upon the cadence detection process. The process further includes a temporal filter temporally filtering the series of frames wherein the temporal filtering is modified based upon the scene cut detection process and the noise monitoring process. The system also includes a spatial noise reduction process reducing spatial noise in the series of frames wherein the reducing spatial noise is modified based upon the modified temporally filtered frames and the noise monitoring process.Type: ApplicationFiled: May 18, 2015Publication date: November 24, 2016Inventors: Anustup Kumar CHOUDHURY, Christopher A. SEGALL, Xu CHEN, Philip B. COWAN, Petrus J.L. VAN BEEK
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Patent number: 9285923Abstract: A display includes a display area that emits light and a border region surrounding at least a portion of the light emitting region. A light guide plate is overlaying the display area. A lighting module is operatively interconnected with the light guide plate to provide light to the light guide plate and positioned within the border region, and a one camera module is operatively interconnected with the light guide plate to sense light from the light guide plate and positioned within the border region. The display determines a position of a touch on the light guide plate by determining a location of frustrated total internal reflection within the light guide plate as a result of the touch on the light guide plate.Type: GrantFiled: December 19, 2012Date of Patent: March 15, 2016Assignee: Sharp Laboratories of America, Inc.Inventors: Miao Liao, Ahmet Mufit Ferman, Xiaofan Feng, Philip B. Cowan
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Publication number: 20140168162Abstract: A display includes a display area that emits light and a border region surrounding at least a portion of the light emitting region. A light guide plate is overlaying the display area. A lighting module is operatively interconnected with the light guide plate to provide light to the light guide plate and positioned within the border region, and a one camera module is operatively interconnected with the light guide plate to sense light from the light guide plate and positioned within the border region. The display determines a position of a touch on the light guide plate by determining a location of frustrated total internal reflection within the light guide plate as a result of the touch on the light guide plate.Type: ApplicationFiled: December 19, 2012Publication date: June 19, 2014Applicant: SHARP LABORATORIES OF AMERICA, INC.Inventors: Miao LIAO, Ahmet Mufit FERMAN, Xiaofan FENG, Philip B. COWAN
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Patent number: 7571974Abstract: A multiple die printer may be calibrated by a method which includes receiving, for each die, optical density related measurements from a set of calibration targets printed on print media, each calibration target printed by nozzles of a single one of said multiple dies, the targets of each set of varying nominal optical densities, and creating linearization tables for each of said multiple dies.Type: GrantFiled: July 28, 2005Date of Patent: August 11, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: Philip B. Cowan, Yifeng Wu, David W. Kinkley
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Patent number: 7184175Abstract: A method of detecting color miscalibration in a color output device. Accordingly, the method includes providing a calibration mask having a target color and a plurality of windows, and outputting a test array that includes a plurality of test samples arranged for viewing through the windows of the calibration mask, wherein each test sample has an associated test color. The windows may be at least partially aligned with at least one of the test samples, and the target color of the calibration mask may be compared to the test colors of the framed test samples.Type: GrantFiled: August 29, 2002Date of Patent: February 27, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventors: Yifeng Wu, Philip B Cowan, David Kinkley
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Patent number: 7133159Abstract: A method of an embodiment of he invention is disclosed in which image data is bi-directionally color calibrated using one or more online color calibration tables. The image data, as has been bi-directionally color calibrated is output.Type: GrantFiled: April 5, 2003Date of Patent: November 7, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Dongli Yang, Yifeng Wu, Philip B. Cowan
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Patent number: 7023584Abstract: A method, includes depositing a first quantity of a first colorant corresponding to a first color value and a second quantity of a second colorant corresponding to a second color value on a region of media, determining a value related to a hue of the region, determining a difference between the value and a predetermined value. In addition, the method includes changing an association between the first color value and a first colorant quantity value, corresponding to the first quantity of the first colorant, according to the difference. An apparatus includes a spectral measurement device configured to generate output corresponding to a spectral content of light reflected from a region on media formed by depositing a first quantity of a first colorant and a second quantity of a second colorant onto the media. In addition, the apparatus includes a memory to store a plurality of color values and a corresponding plurality of first colorant quantity values.Type: GrantFiled: October 2, 2001Date of Patent: April 4, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Philip B Cowan, Kevin R Hudson
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Publication number: 20040196476Abstract: A color printing system and method for reducing bidirectional hue shift in ink-jet printing. A set of data channels for the ink colors of the system is generated, including at least one print-direction-independent data channel, and at least one pair of print-direction-dependent data channels. A print controller receives the set of data channels for printing, and selects the print-direction-independent data channels, and one of each pair of print-direction-dependent data channels, to provide the data for printing in each pposite scanning direction of the print engine.Type: ApplicationFiled: April 5, 2003Publication date: October 7, 2004Inventors: Dongli Yang, Yifeng Wu, Philip B. Cowan
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Publication number: 20040042021Abstract: A method of detecting color miscalibration in a color output device. Accordingly, the method includes providing a calibration mask having a target color and a plurality of windows, and outputting a test array that includes a plurality of test samples arranged for viewing through the windows of the calibration mask, wherein each test sample has an associated test color. The windows may be at least partially aligned with at least one of the test samples, and the target color of the calibration mask may be compared to the test colors of the framed test samples.Type: ApplicationFiled: August 29, 2002Publication date: March 4, 2004Inventors: Yifeng Wu, Philip B. Cowan, David Kinkley
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Patent number: 6693726Abstract: A method of converting a source color map from a source print mode to a destination print mode comprises the steps of performing a constant hue clipping process to preserve ink ratios of destination colors to source colors and performing a channel independent clipping process to preserve ink volume.Type: GrantFiled: August 31, 2001Date of Patent: February 17, 2004Assignee: Hewlett-Packard Development Company, L.P.Inventors: David Walter Childs, Philip B Cowan, Jay S Gondek, Julie Hong Ouyang
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Publication number: 20030063299Abstract: A method, includes depositing a first quantity of a first colorant corresponding to a first color value and a second quantity of a second colorant corresponding to a second color value on a region of media, determining a value related to a hue of the region, determining a difference between the value and a predetermined value. In addition the method includes changing an association between the first color value and a first colorant quantity value, corresponding to the first quantity of the first colorant, according to the difference. An apparatus includes a spectral measurement device configured to generate output corresponding to a spectral content of light reflected from a region on media formed by depositing a first quantity of a first colorant and a second quantity of a second colorant onto the media. In addition, the apparatus includes a memory to store a plurality of color values and a corresponding plurality of first colorant quantity values.Type: ApplicationFiled: October 2, 2001Publication date: April 3, 2003Inventors: Philip B. Cowan, Kevin R. Hudson
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Publication number: 20030043391Abstract: A method of converting a source color map from a source print mode to a destination print mode comprises the steps of performing a constant hue clipping process to preserve ink ratios of destination colors to source colors and performing a channel independent clipping process to preserve ink volume.Type: ApplicationFiled: August 31, 2001Publication date: March 6, 2003Inventors: David Walter Childs, Philip B. Cowan, Jay S. Gondek, Julie Hong Ouyang
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Patent number: 6042211Abstract: A printing technique is disclosed which takes into account the actual ink drop volumes of the print cartridges used in an inkjet printer. In one embodiment, each of the print cartridges is tested by the manufacturer, and its actual ink drop volume is determined. This actual ink drop volume, or the variance from the nominal ink drop volume, is encoded on the print cartridge itself using any number of techniques. The host computer, which converts RGB tone values to CMYK ink tone values to be printed, reads the information regarding the ink drop volume and adjusts the CMYK tone values as necessary to compensate for the variance in the ink drop volumes. Accordingly, the printer and host computer will adjust the number of CMYK ink drops printed for a particular pixel position on the medium based upon the actual ink drop volumes for the color print cartridges used in the printer.Type: GrantFiled: November 25, 1997Date of Patent: March 28, 2000Assignee: Hewlett-Packard CompanyInventors: Kevin R. Hudson, Philip B Cowan, Jay S Gondek
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Patent number: 4842444Abstract: A method for preventing the formation of acidic mine water wherein inert gas in introduced into a mine cavity under positive pressure to displace oxygen contained therein. Upon detection of the displacement of substantially all of the oxygen from within the mine cavity, the mine cavity is permitted to flood and seal with water.Type: GrantFiled: October 9, 1987Date of Patent: June 27, 1989Assignee: Tusco, IncorporatedInventor: Philip B. Cowan