Patents by Inventor Xiongwu Xia

Xiongwu Xia 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: 7822705
    Abstract: A local search engine geographically indexes information for searching by identifying a geocoded web page of a web site and identifying at least one geocodable web page of the web site. The system identifies a geocode contained within content of the geocoded web page of the web site. The geocode indicates a physical location of an entity associated with the web site. The system indexes content of the geocoded web page and content of the geocodable web page. The indexing including associating the geocode contained within content of the geocoded web page to the indexed content of the geocoded web page and the geocodable web page to allow geographical searching of the content of the web pages.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: October 26, 2010
    Inventor: Xiongwu Xia
  • Publication number: 20100021909
    Abstract: Disclosed is a method of iteratively optimizing two (or more) interrelated sets of probes for the multi-step analysis of sets of designated sequences, each such sequence requiring, for conversion, at least one conversion probe (“primer”), and each converted sequence requiring, for detection, at least one capture probe. The iterative method disclosed herein for the concurrent optimization of primer and probe selection invokes fast logical string matching functions to perform a complete cross-correlation of probe sequences and target sequences. The score function assigns to each probe-target alignment a “degree of matching” score on the basis of position-weighted Hamming distance functions introduced herein. Pairs of probes in the final selection may differ in several positions, while other pairs of probes may differ in only a single position. Not all such positions are of equal importance, and a score function is introduced, reflecting the position of the mismatch within the probe sequence.
    Type: Application
    Filed: July 14, 2009
    Publication date: January 28, 2010
    Inventors: Michael Seul, Tatiana Vener, XiongWu Xia
  • Patent number: 7574305
    Abstract: Disclosed is a method of iteratively optimizing two (or more) interrelated sets of probes for the multi-step analysis of sets of designated sequences, each such sequence requiring, for conversion, at least one conversion probe (“primer”), and each converted sequence requiring, for detection, at least one capture probe. The iterative method disclosed herein for the concurrent optimization of primer and probe selection invokes fast logical string matching functions to perform a complete cross-correlation of probe sequences and target sequences. The score function assigns to each probe-target alignment a “degree of matching” score on the basis of position-weighted Hamming distance functions introduced herein. Pairs of probes in the final selection may differ in several positions, while other pairs of probes may differ in only a single position. Not all such positions are of equal importance, and a score function is introduced, reflecting the position of the mismatch within the probe sequence.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: August 11, 2009
    Assignee: Bioarray Solutions Ltd.
    Inventors: Michael Seul, Tatiana Vener, Xiongwu Xia
  • Patent number: 7526114
    Abstract: Systems and methods are provided the autocentering, autofocusing, acquiring, decoding, aligning, analyzing and exchanging among various parties, images, where the images are of arrays of signals associated with ligand-receptor interactions, and more particularly, ligand-receptor interactions where a multitude of receptors are associated with microparticles or microbeads. The beads are encoded to indicate the identity of the receptor attached, and therefore, an assay image and a decoding image are aligned to effect the decoding. The images or data extracted from such images can be exchanged between de-centralized assay locations and a centralized location where the data are analyzed to indicate assay results. Access to data can be restricted to authorized parties in possession of certain coding information, so as to preserve confidentiality.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: April 28, 2009
    Assignee: BioArray Solutions Ltd.
    Inventors: Xiongwu Xia, Michael Seul, Chiu Chau, Scott Determan
  • Publication number: 20080253633
    Abstract: Disclosed are methods of processing images, and in particular aligning and orienting grids from a fluorescent array of signal sources, by linking nearest neighbor sources to form a hexagon, and then using the hexagon lines for alignment and orientation of the grid. Also disclosed are methods and algorithms for aligning image with grid and correcting for signal beads which are smaller than a grid field and the shift in a grid field. These methods can be used where the signal sources are fluorescent images from a microarray. Also disclosed are methods of automated watershed clustering following transformation.
    Type: Application
    Filed: March 15, 2008
    Publication date: October 16, 2008
    Inventors: Xiongwu Xia, Yiping Guan
  • Publication number: 20070288437
    Abstract: A local search engine geographically indexes information for searching by identifying a geocoded web page of a web site and identifying at least one geocodable web page of the web site. The system identifies a geocode contained within content of the geocoded web page of the web site. The geocode indicates a physical location of an entity associated with the web site. The system indexes content of the geocoded web page and content of the geocodable web page. The indexing including associating the geocode contained within content of the geocoded web page to the indexed content of the geocoded web page and the geocodable web page to allow geographical searching of the content of the web pages.
    Type: Application
    Filed: June 11, 2007
    Publication date: December 13, 2007
    Inventor: Xiongwu Xia
  • Patent number: 7231405
    Abstract: A local search engine geographically indexes information for searching by identifying a geocoded web page of a web site and identifying at least one geocodable web page of the web site. The system identifies a geocode contained within content of the geocoded web page of the web site. The geocode indicates a physical location of an entity associated with the web site. The system indexes content of the geocoded web page and content of the geocodable web page. The indexing including associating the geocode contained within content of the geocoded web page to the indexed content of the geocoded web page and the geocodable web page to allow geographical searching of the content of the web pages.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: June 12, 2007
    Assignee: Doug Norman, Interchange Corp.
    Inventor: Xiongwu Xia
  • Publication number: 20060222226
    Abstract: Systems and methods are provided the autocentering, autofocusing, acquiring, decoding, aligning, analyzing and exchanging among various parties, images, where the images are of arrays of signals associated with ligand-receptor interactions, and more particularly, ligand-receptor interactions where a multitude of receptors are associated with microparticles or microbeads. The beads are encoded to indicate the identity of the receptor attached, and therefore, an assay image and a decoding image are aligned to effect the decoding. The images or data extracted from such images can be exchanged between de-centralized assay locations and a centralized location where the data are analyzed to indicate assay results. Access to data can be restricted to authorized parties in possession of certain coding information, so as to preserve confidentiality.
    Type: Application
    Filed: May 23, 2006
    Publication date: October 5, 2006
    Inventors: Xiongwu Xia, Michael Seul, Chiu Chau, Scott Determan
  • Publication number: 20060222227
    Abstract: Systems and methods are provided the autocentering, autofocusing, acquiring, decoding, aligning, analyzing and exchanging among various parties, images, where the images are of arrays of signals associated with ligand-receptor interactions, and more particularly, ligand-receptor interactions where a multitude of receptors are associated with microparticles or microbeads. The beads are encoded to indicate the identity of the receptor attached, and therefore, an assay image and a decoding image are aligned to effect the decoding. The images or data extracted from such images can be exchanged between de-centralized assay locations and a centralized location where the data are analyzed to indicate assay results. Access to data can be restricted to authorized parties in possession of certain coding information, so as to preserve confidentiality.
    Type: Application
    Filed: May 23, 2006
    Publication date: October 5, 2006
    Inventors: Michael Seul, Xiongwu Xia, Chiu Chau
  • Publication number: 20060127916
    Abstract: Disclosed is a method of iteratively optimizing two (or more) interrelated sets of probes for the multi-step analysis of sets of designated sequences, each such sequence requiring, for conversion, at least one conversion probe (“primer”), and each converted sequence requiring, for detection, at least one capture probe. The iterative method disclosed herein for the concurrent optimization of primer and probe selection invokes fast logical string matching functions to perform a complete cross-correlation of probe sequences and target sequences. The score function assigns to each probe-target alignment a “degree of matching” score on the basis of position-weighted Hamming distance functions introduced herein. Pairs of probes in the final selection may differ in several positions, while other pairs of probes may differ in only a single position. Not all such positions are of equal importance, and a score function is introduced, reflecting the position of the mismatch within the probe sequence.
    Type: Application
    Filed: July 15, 2004
    Publication date: June 15, 2006
    Inventors: Michael Seul, Tatiana Vener, Xiongwu Xia
  • Publication number: 20060025930
    Abstract: Disclosed are methods and algorithms (and their implementation) supporting the automated analysis and interactive review and refinement (“redaction”) of the analysis within an integrated software environment, for automated allele assignments. The implementation, preferably with a software system and a program referred to as the Automated Allele Assignment (“AAA”) program, provides a multiplicity of functionalities including: data management by way of an integrated interface to a portable database to permit visualizing, importing, exporting and creating customizable summary reports; system configuration (“Set-up”) including user authorization, training set analysis and probe masking; Pattern Analysis including string matching and probe flipping; and Interactive Redaction combining real-time database computations and “cut-and-paste” editing, generating “warning” statements and supporting annotation.
    Type: Application
    Filed: August 2, 2004
    Publication date: February 2, 2006
    Inventors: Xiongwu Xia, Michael Seul
  • Publication number: 20050262062
    Abstract: A local search engine geographically indexes information for searching by identifying a geocoded web page of a web site and identifying at least one geocodable web page of the web site. The system identifies a geocode contained within content of the geocoded web page of the web site. The geocode indicates a physical location of an entity associated with the web site. The system indexes content of the geocoded web page and content of the geocodable web page. The indexing including associating the geocode contained within content of the geocoded web page to the indexed content of the geocoded web page and the geocodable web page to allow geographical searching of the content of the web pages.
    Type: Application
    Filed: January 10, 2005
    Publication date: November 24, 2005
    Inventor: Xiongwu Xia
  • Publication number: 20050089916
    Abstract: A method to select a set of probes for multiplexed hybridization analysis of genes with multiple polymorphic regions, which minimizes ambiguities (where the assay results can correspond with more than one allele combination) by one or more of several methods, including: eliminating probes which generate ambiguities; setting a threshold such that only probe-target interactions above the threshold are considered as positive; selectively adding probes until ambiguities are eliminated.
    Type: Application
    Filed: October 26, 2004
    Publication date: April 28, 2005
    Inventors: Xiongwu Xia, Michael Seul
  • Publication number: 20040101191
    Abstract: Systems and methods are provided the autocentering, autofocusing, acquiring, decoding, aligning, analyzing and exchanging among various parties, images, where the images are of arrays of signals associated with ligand-receptor interactions, and more particularly, ligand-receptor interactions where a multitude of receptors are associated with microparticles or microbeads. The beads are encoded to indicate the identity of the receptor attached, and therefore, an assay image and a decoding image are aligned to effect the decoding. The images or data extracted from such images can be exchanged between de-centralized assay locations and a centralized location where the data are analyzed to indicate assay results. Access to data can be restricted to authorized parties in possession of certain coding information, so as to preserve confidentiality.
    Type: Application
    Filed: November 14, 2003
    Publication date: May 27, 2004
    Inventors: Michael Seul, Xiongwu Xia, Chiu Chau
  • Publication number: 20030123714
    Abstract: Slices of image data are collected and frames of image data within the slices are compared and used to determine the overlap between slices so that full images may be reconstructed. Slice and frame image correlation methods are also used to compensate for image stretch. Slice and frame correlation techniques are disclosed that may be used to determine swipe start, swipe stop and swipe too fast conditions as well as anti-spoof techniques.
    Type: Application
    Filed: November 4, 2002
    Publication date: July 3, 2003
    Inventors: Lawrence O'Gorman, Xiongwu Xia