Patents by Inventor Thomas A. Lianza
Thomas A. Lianza 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: 20220059049Abstract: Described herein is a color calibration system and method including a display device including a non-volatile memory, a display screen, and a target sensor. The system and method further can include a computing system in communication with the display device and including a processor, a persistent memory, a temporary memory, and a reference sensor. A calibration matrix can be derived using the reference and target data captured by the target and reference sensors. The calibration matrix can be used to calibrate the target sensor using the calibration matrix.Type: ApplicationFiled: September 6, 2021Publication date: February 24, 2022Applicant: Portrait Displays, Inc.Inventors: Darrell Bird, James Lund, Derek Smith, Mark Schindler, Melissa Thompson, Mackenzie Collins, Josh Palmer, Mark Ryals, Victoria Olivares, Jason Ramirez, Larry Allen Heberlein, Tyler Pruitt, Catherine Meininger, Thomas A Lianza
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Patent number: 9163990Abstract: In a calibrating method for a filter color measuring device that includes at least three color channels, a calibration matrix for transforming output signals of the color channels into tristimulus color values is formed. The calibration is performed spectrally, wherein the spectral sensitivities of the color channels of the color measuring device and the spectral emission properties of typical light sources are measured and stored, and the calibration matrix is calculated from the spectral sensitivities and the spectral emission properties of the light sources and the spectral evaluation functions of the standard observer, e.g., according to CIE 1931.Type: GrantFiled: April 1, 2011Date of Patent: October 20, 2015Assignee: X-Rite Switzerland GmbHInventors: Thomas A. Lianza, Andrew Masia, Wang Long Zhou, Richard Federico, Beat Frick
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Patent number: 8982412Abstract: Systems and methods are provided for facilitating reproduction of arbitrary colors in a workflow by identifying color reproduction processes in the workflow and characterizing the color reproduction processes by determining a statistical variance (e.g., as characterized by a probability density function). Systems and methods are provided for simulating possible output colors for a color reproduction process that involve identifying a desired color for reproduction and determining possible output colors for the color reproduction process based on a predetermined statistical variance.Type: GrantFiled: February 11, 2013Date of Patent: March 17, 2015Assignee: X-Rite, Inc.Inventors: Matthew McDowell, Mark Gundlach, Carmine Matarazzo, Xianfeng Zhao, Thomas A. Lianza, Gerald Conde
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Publication number: 20130215439Abstract: Systems and methods are provided for facilitating reproduction of arbitrary colors in a workflow by identifying color reproduction processes in the workflow and characterizing the color reproduction processes by determining a statistical variance (e.g., as characterized by a probability density function). Systems and methods are provided for simulating possible output colors for a color reproduction process that involve identifying a desired color for reproduction and determining possible output colors for the color reproduction process based on a predetermined statistical variance.Type: ApplicationFiled: February 11, 2013Publication date: August 22, 2013Applicant: X-Rite, Inc.Inventors: Matthew McDowell, Mark Gundlach, Carmine Matarazzo, Xianfeng Zhao, Thomas A. Lianza, Gerald Conde
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Publication number: 20120253727Abstract: In a calibrating method for a filter color measuring device that includes at least three color channels, a calibration matrix for transforming output signals of the color channels into tristimulus color values is formed. The calibration is performed spectrally, wherein the spectral sensitivities of the color channels of the color measuring device and the spectral emission properties of typical light sources are measured and stored, and the calibration matrix is calculated from the spectral sensitivities and the spectral emission properties of the light sources and the spectral evaluation functions of the standard observer, e.g., according to CIE 1931.Type: ApplicationFiled: April 1, 2011Publication date: October 4, 2012Applicant: X-Rite Europe GmbHInventors: Thomas A. Lianza, Andrew Masia, Wang Long Zhou, Richard Federico, Beat Frick
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Patent number: 7639901Abstract: Display systems that utilize digital micro-mirror device (DMD) technology are finding wide application in the areas of projection systems for color display. The common name for such systems is digital light processing projection systems or DLP projection systems. The systems and methods described herein utilize the non-imaging light to monitor and calibrate the projected image since the high levels of illumination and extreme temperatures of the imaging light require careful attention to the manner of light collection. Light collection is accomplished in a waste gate area by a light collector, e.g., an optical fiber mat, and the collected light is communicated to an associated sensor. The technique is non-invasive and may be applied to existing designs with minimal modification.Type: GrantFiled: May 24, 2006Date of Patent: December 29, 2009Assignee: X-Rite Europe GmbHInventor: Thomas A. Lianza
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Publication number: 20090066631Abstract: A controller device provides for local and global control of illumination color and intensity of a backlight. The controller architecture allows for optimization of an illumination surface and simultaneous sensing, analysis and control of each supported region of the surface to enable uniform light and color luminance output from the surface. The controller utilizes a temporal feedback mechanism which allows the use of monochrome sensors to control the color luminance output of the illumination system. The controller can be used during production of displays to set initial optimal conditions and also to continuously monitor and adjust backlighting during use of the display by the consumer. By using high frequency monitoring and control signals, as well as color blending, testing and correction can be conducted during use and beyond the threshold of perception of the human observer.Type: ApplicationFiled: September 12, 2007Publication date: March 12, 2009Applicant: X-RITE, INC.Inventor: Thomas A. Lianza
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Patent number: 7499163Abstract: A method and system for effecting an appearance model correction for a display unit, e.g., a CRT, using a polynomial-based algorithm is described. The correction may be effected in real time and is based on gamma values associated with the display. Strong correlations with the CIECAM02 specification are achieved according to the present disclosure. The correction functionality may be implemented using a colorimeter that includes a plurality of sensors/filter systems with non overlappng spectral responses, adequate for providing data capable of translation into standard coordinates system such as, CIE XYZ, CIE L*a*b*, or CIE Luv, as well as non-standard operable coordinate systems. The field of view of the colorimeter is chosen to closely track the response of the human eye using an optical path configured to select and limit the field of view in a manner that is insensitive to placement of the colorimeter on the source image.Type: GrantFiled: February 13, 2006Date of Patent: March 3, 2009Assignee: X-Rite Europe GmbHInventors: Thomas A. Lianza, Richard A. Federico, Carl D. Lutz
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Patent number: 7372571Abstract: A colorimeter method and apparatus is described. The colorimeter includes a plurality of sensors/filter systems with non overlapping spectral responses, adequate for providing data capable of translation into standard coordinates system such as, CIE XYZ, CIE L*a*b*, or CIE Luv, as well as non-standard operable coordinate systems. The field of view of the colorimeter is chosen to closely track the response of the human eye using an optical path configured to select and limit the field of view in a manner that is insensitive to placement of the colorimeter on the source image. The optical path from the source image to the sensor is configured to select preferred light rays while rejecting undesirable light rays to maximize the signal/noise ratio. A rearward facing sensor channel is included to simultaneously measure ambient light impinging on the source image and feedback means to provide status and/or change of information.Type: GrantFiled: September 30, 2005Date of Patent: May 13, 2008Assignee: GretegMacbeth, LLCInventors: Thomas A. Lianza, Richard A. Federico, Carl D. Lutz
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Publication number: 20060268387Abstract: Display systems that utilize digital micro-mirror device (DMD) technology are finding wide application in the areas of projection systems for color display. The common name for such systems is digital light processing projection systems or DLP projection systems. The systems and methods described herein utilize the non-imaging light to monitor and calibrate the projected image since the high levels of illumination and extreme temperatures of the imaging light require careful attention to the manner of light collection. Light collection is accomplished in a waste gate area by a light collector, e.g., an optical fiber mat, and the collected light is communicated to an associated sensor. The technique is non-invasive and may be applied to existing designs with minimal modification.Type: ApplicationFiled: May 24, 2006Publication date: November 30, 2006Inventor: Thomas Lianza
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Publication number: 20060195278Abstract: A method and system for effecting an appearance model correction for a display unit, e.g., a CRT, using a polynomial-based algorithm is described. The correction may be effected in real time and is based on gamma values associated with the display. Strong correlations with the CIECAM02 specification are achieved according to the present disclosure. The correction functionality may be implemented using a colorimeter that includes a plurality of sensors/filter systems with non overlappng spectral responses, adequate for providing data capable of translation into standard coordinates system such as, CIE XYZ, CIE L*a*b*, or CIE Luv, as well as non-standard operable coordinate systems. The field of view of the colorimeter is chosen to closely track the response of the human eye using an optical path configured to select and limit the field of view in a manner that is insensitive to placement of the colorimeter on the source image.Type: ApplicationFiled: February 13, 2006Publication date: August 31, 2006Inventors: Thomas Lianza, Richard Federico, Carl Lutz
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Patent number: 7064831Abstract: A colorimeter that uses its flexible power/electronic cable as a mounting mechanism is disclosed. The colorimeter can be placed against a target screen, suspended by the cable, where the cable in turn drapes over the top of the display cabinet. A slidable weight can be coupled to the cable to hold a selected position. Alternatively, a slotted suction cup can be used to hold the selected position. A leaf spring can be installed to provide a slight bias force to the backside of the colorimeter, thereby ensuring the colorimeter lays flush to the target screen in the presence of disruptive conditions and anomalies. The colorimeter can further be configured with a low impact suction cup array mount. The colorimeter assembly can be configured with an FOV that corresponds to that of a human, and with self-aligning optical qualities that provide a colorimeter with high SNR.Type: GrantFiled: October 14, 2003Date of Patent: June 20, 2006Assignee: Gretagmacbeth, LLCInventors: Carl D Lutz, Thomas A Lianza, Nicholas A Milley
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Publication number: 20060082776Abstract: A colorimeter method and apparatus is described. The colorimeter includes a plurality of sensors/filter systems with non overlappng spectral responses, adequate for providing data capable of translation into standard coordinates system such as, CIE XYZ, CIE L* a* b*, or CIE Luv, as well as non-standard operable coordinate systems. The field of view of the colorimeter is chosen to closely track the response of the human eye using an optical path configured to select and limit the field of view in a manner that is insensitive to placement of the colorimeter on the source image. The optical path from the source image to the sensor is configured to select preferred light rays while rejecting undesirable light rays to maximize the signal/noise ratio. A rearward facing sensor channel is included to simultaneously measure ambient light impinging on the source image and feedback means to provide status and/or change of information.Type: ApplicationFiled: September 30, 2005Publication date: April 20, 2006Inventors: Thomas Lianza, Richard Federico, Carl Lutz
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Patent number: 7030987Abstract: A colorimeter device and fabrication techniques are disclosed. The assembly and configuration of the device operates to maximize signal-to-noise ratio, as well as to provide an optimal field of view (e.g., such as an FOV that simulates that of the human eye). Geometric elements and features of the design, in conjunction with the assembly procedure, assure precise alignment of optical elements including sensors, filters, and other elements within the enclosure and optical path.Type: GrantFiled: October 14, 2003Date of Patent: April 18, 2006Assignee: Gretagmacbeth, LLCInventors: Carl David Lutz, Thomas A. Lianza
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Publication number: 20040114144Abstract: A colorimeter device and fabrication techniques are disclosed. The assembly and configuration of the device operates to maximize signal-to-noise ratio, as well as to provide an optimal field of view (e.g., such as an FOV that simulates that of the human eye). Geometric elements and features of the design, in conjunction with the assembly procedure, assure precise alignment of optical elements including sensors, filters, and other elements within the enclosure and optical path.Type: ApplicationFiled: October 14, 2003Publication date: June 17, 2004Inventors: Carl David Lutz, Thomas A. Lianza
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Patent number: 6738856Abstract: A cable, adapter, or converter device is disclosed that enables a peripheral device (e.g., external display) normally connected only through a non-USB port to communicate with a host computer via a USB port in addition to its non-USB port. DDC-formatted signals from the peripheral device are converted to the appropriate format for input through the USB port, and signals transmitted to the peripheral device from the USB port are converted to the format recognizable by the external peripheral, allowing access to peripheral features via the host system.Type: GrantFiled: July 19, 2000Date of Patent: May 18, 2004Assignee: Sequel Imaging, IncInventors: Nicholas A. Milley, Thomas Lianza, Carl David Lutz
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Publication number: 20040080749Abstract: A colorimeter that uses its flexible power/electronic cable as a mounting mechanism is disclosed. The colorimeter can be placed against a target screen, suspended by the cable, where the cable in turn drapes over the top of the display cabinet. A slidable weight can be coupled to the cable to hold a selected position. Alternatively, a slotted suction cup can be used to hold the selected position. A leaf spring can be installed to provide a slight bias force to the backside of the calorimeter, thereby ensuring the colorimeter lays flush to the target screen in the presence of disruptive conditions and anomalies. The calorimeter can further be configured with a low impact suction cup array mount. The colorimeter assembly can be configured with an FOV that corresponds to that of a human, and with self-aligning optical qualities that provide a colorimeter with high SNR.Type: ApplicationFiled: October 14, 2003Publication date: April 29, 2004Inventors: Carl David Lutz, Thomas A. Lianza, Nicholas A. Milley
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Patent number: 5892585Abstract: A colorimeter method and apparatus is described that is used to accurately deduce the color of a source which is varying in intensity with respect to time. The colorimeter consists of a plurality of sensors with varied spectral responsivity, a means of shielding these sensors from the effects of ambient illumination and a computational element to analyze the temporal and intensity variation of the signal under measurement. The output from the sensors is integrated and analyzed based upon the measured light intensity, time variant, and characteristics of the source. Sources such as CRT monitors, Flat Panel displays, and stroboscopic illuminators, are typical representations of time variant sources.Type: GrantFiled: April 4, 1997Date of Patent: April 6, 1999Assignee: Sequel ImagingInventors: Thomas A. Lianza, Richard A. Federico
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Patent number: 5218463Abstract: A simple, low cost x-ray scanner providing enhanced resolution is formed by providing a straight-line optical path from an illuminating source, through the x-ray image to be scanned and thence to an imaging lens which forms an image on a CCD array. The x-ray film is fed by means of gravity to a pair of rollers, immediately above which are formed first and second apertures on either side of the roller. The film is eliminated through the apertures which provide a field stop for the optical system. A shutter immediately adjacent one of the apertures is coupled to a width-adjustment mechanism actuated by a feed guide for the film to thereby adjust the width of the aperture to the width of the film. The output of the CCD is modified to expand the output at low levels and compress it at high levels via a logarithmic mapping to adapt the high resolution CCD output to a lower resolution video display processor.Type: GrantFiled: November 26, 1990Date of Patent: June 8, 1993Assignee: Sequel ImagingInventors: Thomas A. Lianza, Arthur W. Kliman, Carl D. Lutz
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Patent number: 5168320Abstract: A colorimeter for measuring transmitted, reflected, emitted and incident light comprises a pod that is demountably attached to a base and that contains a color-responsive detector and associated processing electronics. The detector mates with one of several detachable heads that are selectable to establish precise measuring conditions for the various measurements to be made. The colorimeter enables common and consistent calibration across all elements of the pre-press industry, from checking color proofs or color transparencies, to calibrating video color monitors.Type: GrantFiled: March 13, 1989Date of Patent: December 1, 1992Inventors: Carl D. Lutz, Thomas A. Lianza