Patents by Inventor Douglas R. Taylor

Douglas R. Taylor 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).

  • Publication number: 20220349009
    Abstract: Provided herein is technology for screening for esophageal disorders, including but not limited to, Barrett's esophagus (BE). In particular, provided herein are methods, compositions, and related uses for detecting the presence or absence of esophageal disorders from a biological sample.
    Type: Application
    Filed: April 22, 2022
    Publication date: November 3, 2022
    Inventors: William R. Taylor, Tracy C. Yab, Douglas W. Mahoney, John B. Kisiel, David A. Ahlquist, Hatim T. Allawi, Graham P. Lidgard, Maria Giakoumopoulos
  • Publication number: 20220247888
    Abstract: A system and method enable determining a total colorant limit for printing images. The system includes memory which stores instructions for: determining a grain value for each of a set of printed patches printed on a first print media, the grain value being based upon a visual contrast sensitivity function computed for the respective patch, the set of printed patches including patches printed on the print media at different total colorant values; determining a total colorant limit for the first print media, as a function of the total colorant values and corresponding grain values for the printed patches in the set, wherein the total colorant limit is a total colorant value which corresponds to a grain value which does not exceed a threshold grain value for the first print media. A processor executes the instructions.
    Type: Application
    Filed: February 3, 2021
    Publication date: August 4, 2022
    Applicant: Xerox Corporation
    Inventors: Stuart A. Schweid, John T. Newell, Chu-Heng Liu, Roger L. Triplett, Mojgan Rabbani, Martin S. Maltz, David A. VanKouwenberg, Seemit Praharaj, Douglas R. Taylor, Martin L. Frachioni, Paul J. McConville
  • Publication number: 20220243278
    Abstract: Provided herein is technology for screening multiple types of cancer from a biological sample, and particularly, but not exclusively, to methods, compositions, and related uses for simultaneously detecting the presence of multiple types of cancer (e.g., liver cancer, esophageal cancer, lung cancer, ovarian cancer, pancreatic cancer, gastric cancer, bladder cancer, breast cancer, cervical cancer, colorectal cancer, prostate cancer, renal cancer, and uterine cancer) from a biological sample (e.g., stool sample, tissue sample, organ secretion sample, CSF sample, saliva sample, blood sample, plasma sample or urine sample).
    Type: Application
    Filed: January 28, 2022
    Publication date: August 4, 2022
    Inventors: William R. Taylor, Hatim T. Allawi, Viatcheslav E. Katerov, John B. Kisiel, Douglas W. Mahoney, David A. Ahlquist
  • Patent number: 11384401
    Abstract: Provided herein is technology for gastrointestinal neoplasia screening and particularly, but not exclusively, to methods, compositions, and related uses for detecting the presence of gastrointestinal neoplasm, and classifying the site location of such a gastrointestinal neoplasm (e.g., a colorectal region, a pancreaticobiliary region, a gastroesophageal region).
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: July 12, 2022
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: David A. Ahlquist, William R. Taylor, John B. Kisiel, Douglas W. Mahoney, Tracy C. Yab
  • Patent number: 11348214
    Abstract: A system and method are provided for registering source and target images. The method includes receiving a first source image and a first scanned image. The first scanned image is one that has been generated by scanning a printed page that has been generated by printing the first source image or a transformed first source image derived from the first source image. Locations of corners of a target image in the first scanned image are identified. With a first computed transform, the corners of the target image in the first scanned image are aligned to corners of the first source image to generate an aligned target image. Local features in the source image and aligned target image are detected. A second transform is computed to align the target image with the first source image, based on the detected local features.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: May 31, 2022
    Assignee: XEROX CORPORATION
    Inventors: Douglas R. Taylor, Stuart A. Schweid
  • Publication number: 20220044373
    Abstract: A system and method are provided for registering source and target images. The method includes receiving a first source image and a first scanned image. The first scanned image is one that has been generated by scanning a printed page that has been generated by printing the first source image or a transformed first source image derived from the first source image. Locations of corners of a target image in the first scanned image are identified. With a first computed transform, the corners of the target image in the first scanned image are aligned to corners of the first source image to generate an aligned target image. Local features in the source image and aligned target image are detected. A second transform is computed to align the target image with the first source image, based on the detected local features.
    Type: Application
    Filed: August 7, 2020
    Publication date: February 10, 2022
    Applicant: Xerox Corporation
    Inventors: Douglas R. Taylor, Stuart A. Schweid
  • Patent number: 10210608
    Abstract: An image system for detecting defects in an image may include a processing device to detect defects in a target image by analyzing the activity level in a reference and the target image. The system may identify a quiet area/pixel in the reference image based on the activity level, check the activity level of the corresponding pixel in the target image, and classify the pixel in the target image as defective if the activity level of the pixel in the target image exceeds a noise threshold. The system may additionally swap the reference and target image, repeat the detection steps and combine the detection results with those before the swap. The system may also include an image sensor to scan a printed document of the reference image into a scanned electronic document (the target image).
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: February 19, 2019
    Assignee: Xerox Corporation
    Inventors: Stuart Schweid, Douglas R. Taylor
  • Patent number: 10198809
    Abstract: A system for detecting defects in a print system may include a print engine to print an electronic document (a reference image) and yield a printed document. The system may also include an image sensor to scan the printed document into a scanned electronic document (a target image). The system may include a processing device to detect defects in the printed document by analyzing the activity level in the reference and target image. The system may identify a quiet area/pixel in the reference image based on the activity level, check the activity level of the corresponding pixel in the target image, and classify the pixel in the target image as defective if the activity level of the pixel in the target image exceeds a noise threshold. The system may additionally swap the reference and target image, repeat the detection steps and combine the detection results with those before the swap.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: February 5, 2019
    Assignee: Xerox Corporation
    Inventors: Stuart Schweid, Douglas R. Taylor
  • Publication number: 20180225816
    Abstract: An image system for detecting defects in an image may include a processing device to detect defects in a target image by analyzing the activity level in a reference and the target image. The system may identify a quiet area/pixel in the reference image based on the activity level, check the activity level of the corresponding pixel in the target image, and classify the pixel in the target image as defective if the activity level of the pixel in the target image exceeds a noise threshold. The system may additionally swap the reference and target image, repeat the detection steps and combine the detection results with those before the swap. The system may also include an image sensor to scan a printed document of the reference image into a scanned electronic document (the target image).
    Type: Application
    Filed: April 14, 2017
    Publication date: August 9, 2018
    Inventors: Stuart Schweid, Douglas R. Taylor
  • Publication number: 20180225815
    Abstract: A system for detecting defects in a print system may include a print engine to print an electronic document (a reference image) and yield a printed document. The system may also include an image sensor to scan the printed document into a scanned electronic document (a target image). The system may include a processing device to detect defects in the printed document by analyzing the activity level in the reference and target image. The system may identify a quiet area/pixel in the reference image based on the activity level, check the activity level of the corresponding pixel in the target image, and classify the pixel in the target image as defective if the activity level of the pixel in the target image exceeds a noise threshold. The system may additionally swap the reference and target image, repeat the detection steps and combine the detection results with those before the swap.
    Type: Application
    Filed: April 14, 2017
    Publication date: August 9, 2018
    Inventors: Stuart Schweid, Douglas R. Taylor
  • Patent number: 9906654
    Abstract: Methods and systems print an original image to form a printed sheet, scan the printed sheet, and overlay the original image on an area of the scanned image where original image is located, to produce an overlay image. A border is added to the original image in the overlay image to modify the original image into an enlarged original image. Markings from an area of the overlay image where the enlarged original image is positioned are removed to produce a white space image. Defects in the white space image are detected and highlighted by adding highlight markings to the white space image where the defects are located, to produce a defect image. The defect image is displayed.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: February 27, 2018
    Assignee: Xerox Corporation
    Inventors: Douglas R. Taylor, Eliud Robles Flores
  • Patent number: 9086648
    Abstract: Devices and methods detect an amount of toner on a photoreceptor caused by a printing process, and calculate a reload signal using a processor. The reload signal shows the amount of toner being reloaded on a donor roll from a toner container to replace the toner being removed from the donor roll during the printing process (as detected by an optical sensor). Such devices and methods generate a toner concentration (TC) sensor response representing a concentration of toner particles within the toner/developer mixture using a TC sensor, calculate a calibration sensor relationship between the TC sensor response and the reload signal, using the processor, based on changes in the TC sensor response and the reload signal that occur while changing the toner concentration during the printing process, and calibrate the TC sensor based on differences between the calibration sensor relationship and a previously established model relationship using the processor.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: July 21, 2015
    Assignee: Xerox Corporation
    Inventors: Brian R. Conrow, Douglas R. Taylor
  • Publication number: 20140333691
    Abstract: A method of printer operation enables visual detection of defective inkjets. The method includes operating inkjets in a predetermined number of printheads that eject a same color of ink to form a test pattern having three portions. One portion is printed by the even-numbered inkjets in each printhead, one portion is printed by the odd-numbered inkjets in each printhead, and a third portion is printed by all of the inkjets in each printhead. The portions are printed immediately adjacent to one another in a process direction with the third portion between the other two portions.
    Type: Application
    Filed: May 9, 2013
    Publication date: November 13, 2014
    Applicant: Xerox Corporation
    Inventors: Douglas R. Taylor, Robert E. Rosdahl, JR., Brian R. Conrow
  • Patent number: 8864283
    Abstract: A method of printer operation enables visual detection of defective inkjets. The method includes operating inkjets in a predetermined number of printheads that eject a same color of ink to form a test pattern having three portions. One portion is printed by the even-numbered inkjets in each printhead, one portion is printed by the odd-numbered inkjets in each printhead, and a third portion is printed by all of the inkjets in each printhead. The portions are printed immediately adjacent to one another in a process direction with the third portion between the other two portions.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: October 21, 2014
    Assignee: Xerox Corporation
    Inventors: Douglas R. Taylor, Robert E. Rosdahl, Jr., Brian R. Conrow
  • Patent number: 8400683
    Abstract: Streak compensation in a digital printer is provided utilizing a spatially varying Printer Model and Run Time updates to generate Spatially Varying Tone Reproduction Curves (STRCs) which are used as actuators to compensate for streaks during run time. A full width array sensor is used to measure streak profiles and the STRCs are used as actuators to compensate for streaks. Streak profile measurements taken at a limited number of area coverage levels combined with a Printer Streaks Basis Function Model are used to estimate and project the streak behavior at all area coverage levels and at all inboard-to-outboard spatial locations. The projection is then used in a pixel-wise error feedback control scheme to drive each profile to a desired shape, thereby compensating for streaks.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: March 19, 2013
    Assignee: Xerox Corporation
    Inventors: Peter Paul, Claude S. Fillion, Stuart A. Schweid, Douglas R. Taylor, Brian R. Conrow
  • Patent number: 8126359
    Abstract: A method for monitoring an image printing system that prints color images on an image bearing surface movable in a process direction is provided. The method includes placing marking material to form a row comprising a plurality of registration marks on the image bearing surface, wherein each row of registration marks extends along a cross-process direction transverse to the process direction; detecting a position of each registration mark using a linear array sensor extending in the cross-process direction, wherein the position of each registration mark is detected in both the process and cross-process direction; determining a process direction misregistration between the registration marks of each row in the process direction and cross-process direction misregistration between registration marks from each of the rows.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: February 28, 2012
    Assignee: Xerox Corporation
    Inventors: James P. Calamita, Michael John Martin, Douglas R. Taylor, Shawn P. Updegraff, Brian R. Conrow, David C. Craig
  • Publication number: 20100220363
    Abstract: Streak compensation in a digital printer is provided utilizing a spatially varying Printer Model and Run Time updates to generate Spatially Varying Tone Reproduction Curves (STRCs) which are used as actuators to compensate for streaks during run time. A full width array sensor is used to measure streak profiles and the STRCs are used as actuators to compensate for streaks. Streak profile measurements taken at a limited number of area coverage levels combined with a Printer Streaks Basis Function Model are used to estimate and project the streak behavior at all area coverage levels and at all inboard-to-outboard spatial locations. The projection is then used in a pixel-wise error feedback control scheme to drive each profile to a desired shape, thereby compensating for streaks.
    Type: Application
    Filed: May 17, 2010
    Publication date: September 2, 2010
    Applicant: Xerox Corporation
    Inventors: Peter Paul, Claude S. Fillion, Stuart A. Schweid, Douglas R. Taylor, Brian R. Conrow
  • Publication number: 20100014896
    Abstract: A method for monitoring an image printing system that prints color images on an image bearing surface movable in a process direction is provided. The method includes placing marking material to form a row comprising a plurality of registration marks on the image bearing surface, wherein each row of registration marks extends along a cross-process direction transverse to the process direction; detecting a position of each registration mark using a linear array sensor extending in the cross-process direction, wherein the position of each registration mark is detected in both the process and cross-process direction; determining a process direction misregistration between the registration marks of each row in the process direction and cross-process direction misregistration between registration marks from each of the rows.
    Type: Application
    Filed: July 15, 2008
    Publication date: January 21, 2010
    Applicant: XEROX CORPORATION
    Inventors: James P. CALAMITA, Michael John MARTIN, Douglas R. TAYLOR, Shawn P. UPDEGRAFF, Brian R. CONROW, David C. CRAIG
  • Patent number: 7397349
    Abstract: A vehicle lighting control system for a school bus allows automatic activation of hazard mode operation of the vehicle's signaling lights in response to activation of other warning lights. Deactivation follows upon the vehicle exceeding a predetermined maximum speed.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: July 8, 2008
    Assignee: International Truck Intellectual Property Company, LLC
    Inventors: Jeremy A. Lahr, Allyson K. Kreft, Douglas R. Taylor
  • Patent number: 7378946
    Abstract: A system and method for alerting responsible personnel to perform a post-trip inspection check for passengers remaining on a bus at the end of a trip by issuing audible and/or visual alerts when the bus is parked and the motor shut off at the end of the trip. The ignition switch (47) must be placed in ACCESSORY position and a park brake applied for the system to be rendered capable of being disarmed by operation of a disarming device (45S) at the rear of the bus. Operation of the disarming device is indicated by a correct sequence of operating conditions of the device, namely first non-actuated, then actuated, and then non-actuated. The system includes a SNOOZE state that allows the ignition switch to be temporarily turned off during a trip and the alert to be stopped by pressing a snooze switch.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: May 27, 2008
    Assignee: International Truck Intellectual Property Company, LLC
    Inventors: Jeremy A. Lahr, Allyson K. Kreft, Marilyn R. Miars, Douglas R. Taylor, Clark L. Backlund