Patents by Inventor Francis T. Cheng

Francis T. Cheng 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).

  • Patent number: 11339425
    Abstract: A biological analysis system is provided. The system comprises an interchangeable assembly configured to accommodate any one of a plurality of sample holders, each respective sample holder configured to receive a plurality of samples. The system also includes a control system configured to cycle the plurality of samples through a series of temperatures. The system further includes an optical system configured to detect fluorescent signals emitted from the plurality of samples. The optical system, in particular, can comprise a single field lens, an excitation source, an optical sensor, and a plurality of filter components. The excitation source can be one or more light emitting diodes. The field lends can be a bi-convex lens.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: May 24, 2022
    Assignee: LIFE TECHNOLOGIES CORPORATION
    Inventors: Jacob K. Freudenthal, Geoffrey Dahlhoff, Kevin Maher, Ming Song Chen, Gary Lim, Ronald Danehy, David Fortescue, Ming Shen, Woon Liang Soh, Francis T. Cheng, Ruoyun Wu, Thiam Chye Lee, Gary A. Chappell, Chee Kiong Lim, Jeff Dere, Ted Straub, Jorge Fonseca, Kuan Moon Boo, Soo Yong Lau
  • Patent number: 11257570
    Abstract: Systems and methods are provided for processing a melting or dissociation curve of a DNA or other sample, for example, during PCR processing. In some embodiments, detection of the melting point and melting curve behavior can be enhanced by taking a derivative of the curve, and detecting peaks in the differential dissociation curve. In some embodiments, the derivative operation can comprise the use of edge-processing, or other detection algorithms. In some embodiments, the dissociation analysis can comprise removing low-frequency (or pedestal) components of the differential dissociation curve. In some embodiments, the differential dissociation curve can exhibit a smoothed or more regular appearance than the raw detected data.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: February 22, 2022
    Assignee: Applied Biosystems, LLC
    Inventor: Francis T. Cheng
  • Publication number: 20190300936
    Abstract: A biological analysis system is provided. The system comprises an interchangeable assembly configured to accommodate any one of a plurality of sample holders, each respective sample holder configured to receive a plurality of samples. The system also includes a control system configured to cycle the plurality of samples through a series of temperatures. The system further includes an optical system configured to detect fluorescent signals emitted from the plurality of samples. The optical system, in particular, can comprise a single field lens, an excitation source, an optical sensor, and a plurality of filter components. The excitation source can be one or more light emitting diodes. The field lends can be a bi-convex lens.
    Type: Application
    Filed: April 12, 2019
    Publication date: October 3, 2019
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Jacob K. FREUDENTHAL, Geoffrey DAHLHOFF, Kevin MAHER, Ming Song CHEN, Gary LIM, Ronald DANEHY, David FORTESCUE, Ming SHEN, Woon Liang Soh, Francis T. CHENG, Ruoyun WU, Thiam Chye LEE, Gary A. CHAPPELL, Chee Kiong LIM, Jeff DERE, Ted E. STRAUB, Jorge FONSECA, Kuan Moon BOO, Soo Yong LAU
  • Patent number: 10318705
    Abstract: The present application provides for various embodiments of methods for the analysis of high resolution melt (HRM) curve data; where statistical assay variations in melt curve data may result from system noise in an analysis system. Such system noise may arise from various sources, such as the thermal non-uniformity of a thermocycler block in a thermal cycler apparatus, a detection system, etc. Additionally, various methods for the analysis of HRM curve data may provide an identification of a sample without the need for a user inputted information.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: June 11, 2019
    Assignee: Life Technologies Corporation
    Inventors: Francis T. Cheng, Chengyong Yang, Casey McFarland, Ying Wang
  • Patent number: 10176277
    Abstract: Methods are provided that operate on raw dissociation data and dissociation curves to generate calibrations of the detected data and to further improve analysis of the data. The data can be taken from each support region of a multi-region platform, for example, from each well of a multi-well plate. Each support region can be loaded with portions of the same sample. In some embodiments, a dissociation curve correction can be calibrated for the sample, prior to a run of an experiment using such sample. In some embodiments, a method is provided for generating a melting transition region of dissociation curves that show the melting characteristics of the sample. In some embodiments, dye temperature dependence correction can be performed on the dissociation curve data to further improve analysis. In some embodiments, a feature vector can be derived from the melt data, and the feature vector can be used to further improve genotyping analysis of the dissociation curves.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: January 8, 2019
    Assignee: LIFE TECHNOLOGIES CORPORATION
    Inventors: Francis T. Cheng, Casey R. McFarland
  • Publication number: 20180315187
    Abstract: A method for improving image quality is provided. The method includes receiving image data of a substrate, wherein the image data is generated by imaging the substrate, and an image is generated from the image data. The method further includes generating a background representation from a background noise portion of the image, wherein the background portion includes signal information undesired for further processing and generating a background subtracted image by subtracting the background representation from the image. In this way, a separate background image is not needed to subtract the background from the image including the regions-of-interest to improve image quality.
    Type: Application
    Filed: January 9, 2018
    Publication date: November 1, 2018
    Inventors: Francis T. Cheng, Thomas Wessel
  • Publication number: 20180314788
    Abstract: Systems and methods are provided for processing a melting or dissociation curve of a DNA or other sample, for example, during PCR processing. In some embodiments, detection of the melting point and melting curve behavior can be enhanced by taking a derivative of the curve, and detecting peaks in the differential dissociation curve. In some embodiments, the derivative operation can comprise the use of edge-processing, or other detection algorithms. In some embodiments, the dissociation analysis can comprise removing low-frequency (or pedestal) components of the differential dissociation curve. In some embodiments, the differential dissociation curve can exhibit a smoothed or more regular appearance than the raw detected data.
    Type: Application
    Filed: April 27, 2018
    Publication date: November 1, 2018
    Applicant: Applied Biosystems, LLC
    Inventor: Francis T. Cheng
  • Patent number: 9977860
    Abstract: Systems and methods are provided for processing a melting or dissociation curve of a DNA or other sample, for example, during PCR processing. In some embodiments, detection of the melting point and melting curve behavior can be enhanced by taking a derivative of the curve, and detecting peaks in the differential dissociation curve. In some embodiments, the derivative operation can comprise the use of edge-processing, or other detection algorithms. In some embodiments, the dissociation analysis can comprise removing low-frequency (or pedestal) components of the differential dissociation curve. In some embodiments, the differential dissociation curve can exhibit a smoothed or more regular appearance than the raw detected data.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: May 22, 2018
    Assignee: Applied Biosystems, LLC
    Inventor: Francis T. Cheng
  • Patent number: 9865049
    Abstract: A method for improving image quality is provided. The method includes receiving image data of a substrate, wherein the image data is generated by imaging the substrate, and an image is generated from the image data. The method further includes generating a background representation from a background noise portion of the image, wherein the background portion includes signal information undesired for further processing and generating a background subtracted image by subtracting the background representation from the image. In this way, a separate background image is not needed to subtract the background from the image including the regions-of-interest to improve image quality.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: January 9, 2018
    Assignee: LIFE TECHNOLOGIES CORPORATION
    Inventors: Francis T. Cheng, Thomas Wessel
  • Patent number: 9772339
    Abstract: A computer-implemented method for identifying a first object-of-interest is provided. The first object-of-interest includes two identifiers and a sample portion. The method includes imaging the first object-of-interest including the two identifiers. The imaging generates a first set of image data. The method further includes determining a position of the first object-of-interest in the field-of-view of an optical sensor and determining the two identifiers from the first set of image data. The method includes identifying the first object-of-interest based on the two identifiers.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: September 26, 2017
    Assignee: Life Technologies Corporation
    Inventors: David Fortescue, Ming Shen, Woon Liang Soh, Francis T. Cheng
  • Publication number: 20160342734
    Abstract: The present application provides for various embodiments of methods for the analysis of high resolution melt (HRM) curve data; where statistical assay variations in melt curve data may result from system noise in an analysis system. Such system noise may arise from various sources, such as the thermal non-uniformity of a thermocycler block in a thermal cycler apparatus, a detection system, etc. Additionally, various methods for the analysis of HRM curve data may provide an identification of a sample without the need for a user inputted information.
    Type: Application
    Filed: May 19, 2016
    Publication date: November 24, 2016
    Inventors: Francis T. Cheng, Chengyong Yang, Casey McFarland, Ying Wang
  • Patent number: 9495741
    Abstract: A method for calibrating a biological instrument is provided. The method comprises the steps of acquiring an image of at least one biological sample array, determining a first region of interest within the image, wherein the first region of interest comprises a first plurality of locations on the at least one biological array; and identifying within the first region of interest, a plurality of image elements associated with each of the first plurality of locations on the at least one biological array.
    Type: Grant
    Filed: September 30, 2012
    Date of Patent: November 15, 2016
    Assignee: LIFE TECHNOLOGIES CORPORATION
    Inventors: Jacob K. Freudenthal, Jeffrey A. Marks, Francis T. Cheng, Thomas Wessel
  • Publication number: 20140343862
    Abstract: Systems and methods are provided for processing a melting or dissociation curve of a DNA or other sample, for example, during PCR processing. In some embodiments, detection of the melting point and melting curve behavior can be enhanced by taking a derivative of the curve, and detecting peaks in the differential dissociation curve. In some embodiments, the derivative operation can comprise the use of edge-processing, or other detection algorithms. In some embodiments, the dissociation analysis can comprise removing low-frequency (or pedestal) components of the differential dissociation curve. In some embodiments, the differential dissociation curve can exhibit a smoothed or more regular appearance than the raw detected data.
    Type: Application
    Filed: April 22, 2014
    Publication date: November 20, 2014
    Applicant: APPLIED BIOSYSTEMS, LLC
    Inventor: Francis T. Cheng
  • Publication number: 20140294268
    Abstract: A method for calibrating a biological instrument is provided. The method comprises the steps of acquiring an image of at least one biological sample array, determining a first region of interest within the image, wherein the first region of interest comprises a first plurality of locations on the at least one biological array; and identifying within the first region of interest, a plurality of image elements associated with each of the first plurality of locations on the at least one biological array.
    Type: Application
    Filed: September 30, 2012
    Publication date: October 2, 2014
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Jacob K. Freudenthal, Jeffrey A. Marks, Francis T. Cheng, Thomas Wessel
  • Publication number: 20140247967
    Abstract: A computer-implemented method for identifying a first object-of-interest is provided. The first object-of-interest includes two identifiers and a sample portion. The method includes imaging the first object-of-interest including the two identifiers. The imaging generates a first set of image data. The method further includes determining a position of the first object-of-interest in the field-of-view of an optical sensor and determining the two identifiers from the first set of image data. The method includes identifying the first object-of-interest based on the two identifiers.
    Type: Application
    Filed: September 28, 2012
    Publication date: September 4, 2014
    Inventors: David Fortescue, Ming Shen, Woon Liang Soh, Francis T. Cheng
  • Publication number: 20140233816
    Abstract: A method for improving image quality is provided. The method includes receiving image data of a substrate, wherein the image data is generated by imaging the substrate, and an image is generated from the image data. The method further includes generating a background representation from a background noise portion of the image, wherein the background portion includes signal information undesired for further processing and generating a background subtracted image by subtracting the background rep resentation from the image. In this way, a separate background image is not needed to subtract the background from the image including the regions-of-interest to improve image quality.
    Type: Application
    Filed: September 28, 2012
    Publication date: August 21, 2014
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Francis T. Cheng, Thomas Wessel
  • Publication number: 20140213487
    Abstract: A biological analysis system is provided. The system comprises an interchangeable assembly configured to accommodate any one of a plurality of sample holders, each respective sample holder configured to receive a plurality of samples. The system also includes a control system configured to cycle the plurality of samples through a series of temperatures. The system further includes an optical system configured to detect fluorescent signals emitted from the plurality of samples. The optical system, in particular, can comprise a single field lens, an excitation source, an optical sensor, and a plurality of filter components. The excitation source can be one or more light emitting diodes. The field lens can be a bi-convex lens.
    Type: Application
    Filed: September 28, 2012
    Publication date: July 31, 2014
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Jacob K. Freudenthal, Geoffrey Dahlhoff, Kevin Maher, Ming Song Chen, Gary Lim, Ronald Danehy, David Fortescue, Ming Shen, Woon Liang Soh, Francis T. Cheng, Ruoyun Wu, Thiam Chye Lee, Gary A. Chappell, Chee Kiong Lim, Jeff Dere, Theodore E. Straub, Jorge Fonseca, Kuan Moon Boo, Soo Yong Lau
  • Publication number: 20140067345
    Abstract: Methods are provided that operate on raw dissociation data and dissociation curves to generate calibrations of the detected data and to further improve analysis of the data. The data can be taken from each support region of a multi-region platform, for example, from each well of a multi-well plate. Each support region can be loaded with portions of the same sample. In some embodiments, a dissociation curve correction can be calibrated for the sample, prior to a run of an experiment using such sample. In some embodiments, a method is provided for generating a melting transition region of dissociation curves that show the melting characteristics of the sample. In some embodiments, dye temperature dependence correction can be performed on the dissociation curve data to further improve analysis. In some embodiments, a feature vector can be derived from the melt data, and the feature vector can be used to further improve genotyping analysis of the dissociation curves.
    Type: Application
    Filed: August 27, 2013
    Publication date: March 6, 2014
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Francis T. Cheng, Casey R. McFarland
  • Patent number: 8538733
    Abstract: Methods are provided that operate on raw dissociation data and dissociation curves to generate calibrations of the detected data and to further improve analysis of the data. The data can be taken from each support region of a multi-region platform, for example, from each well of a multi-well plate. Each support region can be loaded with portions of the same sample. In some embodiments, a dissociation curve correction can be calibrated for the sample, prior to a run of an experiment using such sample. In some embodiments, a method is provided for generating a melting transition region of dissociation curves that show the melting characteristics of the sample. In some embodiments, dye temperature dependence correction can be performed on the dissociation curve data to further improve analysis. In some embodiments, a feature vector can be derived from the melt data, and the feature vector can be used to further improve genotyping analysis of the dissociation curves.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: September 17, 2013
    Assignee: Life Technologies Corporation
    Inventors: Francis T. Cheng, Casey R. McFarland
  • Publication number: 20110105345
    Abstract: The present application provides for various embodiments of methods for the analysis of high resolution melt (HRM) curve data; where statistical assay variations in melt curve data may result from system noise in an analysis system. Such system noise may arise from various sources, such as the thermal non-uniformity of a thermocycler block in a thermal cycler apparatus, a detection system, etc. Additionally, various methods for the analysis of HRM curve data may provide an identification of a sample without the need for a user inputted information.
    Type: Application
    Filed: August 2, 2010
    Publication date: May 5, 2011
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Francis T. Cheng, Chengyong Yang, Casey R. McFarland, Ying Wang