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).
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Patent number: 11339425Abstract: 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: GrantFiled: April 12, 2019Date of Patent: May 24, 2022Assignee: LIFE TECHNOLOGIES CORPORATIONInventors: 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
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Patent number: 11257570Abstract: 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: GrantFiled: April 27, 2018Date of Patent: February 22, 2022Assignee: Applied Biosystems, LLCInventor: Francis T. Cheng
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Publication number: 20190300936Abstract: 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: ApplicationFiled: April 12, 2019Publication date: October 3, 2019Applicant: LIFE TECHNOLOGIES CORPORATIONInventors: 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
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Patent number: 10318705Abstract: 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: GrantFiled: May 19, 2016Date of Patent: June 11, 2019Assignee: Life Technologies CorporationInventors: Francis T. Cheng, Chengyong Yang, Casey McFarland, Ying Wang
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Patent number: 10176277Abstract: 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: GrantFiled: August 27, 2013Date of Patent: January 8, 2019Assignee: LIFE TECHNOLOGIES CORPORATIONInventors: Francis T. Cheng, Casey R. McFarland
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Publication number: 20180315187Abstract: 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: ApplicationFiled: January 9, 2018Publication date: November 1, 2018Inventors: Francis T. Cheng, Thomas Wessel
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Publication number: 20180314788Abstract: 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: ApplicationFiled: April 27, 2018Publication date: November 1, 2018Applicant: Applied Biosystems, LLCInventor: Francis T. Cheng
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Patent number: 9977860Abstract: 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: GrantFiled: April 22, 2014Date of Patent: May 22, 2018Assignee: Applied Biosystems, LLCInventor: Francis T. Cheng
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Patent number: 9865049Abstract: 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: GrantFiled: September 28, 2012Date of Patent: January 9, 2018Assignee: LIFE TECHNOLOGIES CORPORATIONInventors: Francis T. Cheng, Thomas Wessel
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Patent number: 9772339Abstract: 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: GrantFiled: September 28, 2012Date of Patent: September 26, 2017Assignee: Life Technologies CorporationInventors: David Fortescue, Ming Shen, Woon Liang Soh, Francis T. Cheng
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Publication number: 20160342734Abstract: 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: ApplicationFiled: May 19, 2016Publication date: November 24, 2016Inventors: Francis T. Cheng, Chengyong Yang, Casey McFarland, Ying Wang
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Patent number: 9495741Abstract: 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: GrantFiled: September 30, 2012Date of Patent: November 15, 2016Assignee: LIFE TECHNOLOGIES CORPORATIONInventors: Jacob K. Freudenthal, Jeffrey A. Marks, Francis T. Cheng, Thomas Wessel
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Publication number: 20140343862Abstract: 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: ApplicationFiled: April 22, 2014Publication date: November 20, 2014Applicant: APPLIED BIOSYSTEMS, LLCInventor: Francis T. Cheng
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Publication number: 20140294268Abstract: 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: ApplicationFiled: September 30, 2012Publication date: October 2, 2014Applicant: LIFE TECHNOLOGIES CORPORATIONInventors: Jacob K. Freudenthal, Jeffrey A. Marks, Francis T. Cheng, Thomas Wessel
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Publication number: 20140247967Abstract: 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: ApplicationFiled: September 28, 2012Publication date: September 4, 2014Inventors: David Fortescue, Ming Shen, Woon Liang Soh, Francis T. Cheng
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Publication number: 20140233816Abstract: 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: ApplicationFiled: September 28, 2012Publication date: August 21, 2014Applicant: LIFE TECHNOLOGIES CORPORATIONInventors: Francis T. Cheng, Thomas Wessel
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Publication number: 20140213487Abstract: 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: ApplicationFiled: September 28, 2012Publication date: July 31, 2014Applicant: LIFE TECHNOLOGIES CORPORATIONInventors: 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
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Publication number: 20140067345Abstract: 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: ApplicationFiled: August 27, 2013Publication date: March 6, 2014Applicant: LIFE TECHNOLOGIES CORPORATIONInventors: Francis T. Cheng, Casey R. McFarland
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Patent number: 8538733Abstract: 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: GrantFiled: January 23, 2009Date of Patent: September 17, 2013Assignee: Life Technologies CorporationInventors: Francis T. Cheng, Casey R. McFarland
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Publication number: 20110105345Abstract: 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: ApplicationFiled: August 2, 2010Publication date: May 5, 2011Applicant: LIFE TECHNOLOGIES CORPORATIONInventors: Francis T. Cheng, Chengyong Yang, Casey R. McFarland, Ying Wang