Patents by Inventor David J. Liu

David J. Liu 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: 8082511
    Abstract: A method for personalizing content for a particular user in a computing system comprising a user interface configured to display content. The method comprises identifying a long term profile having one or more features in a feature set and a long term level of importance associated with each term in the feature set, identifying a short term profile having one or more features in the feature set and a short term level of importance associated with each term in the feature set, identifying input related to the display of the one or more content items on the user interface, and using the input to modify the short term level of importance and the long term level of importance associated with each term in the feature set to form a modified user interest set.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: December 20, 2011
    Assignee: AOL Inc.
    Inventors: David C. Sobotka, Sudhir Tonse, Brock D. LaPorte, Mike Macadaan, David J. Liu
  • Patent number: 7993525
    Abstract: An embodiment of the invention relates to a device for detecting an analyte in a sample. The device comprises a fluidic network and an integrated circuitry component. The fluidic network comprises a sample zone, a cleaning zone and a detection zone. The fluidic network contains a magnetic particle and/or a signal particle. A sample containing an analyte is introduced, and the analyte interacts with the magnetic particle and/or the signal particle through affinity agents. A microcoil array a mechanically movable permanent magnet is functionally coupled to the fluidic network, which are activatable to generate a magnetic field within a portion of the fluidic network, and move the magnetic particle from the sample zone to the detection zone. A detection element is present which detects optical or electrical signals from the signal particle, thus indicating the presence of the analyte.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: August 9, 2011
    Assignee: Intel Corporation
    Inventors: Xing Su, David J. Liu, Kenneth B. Swartz, Kai Wu, Mineo Yamakawa
  • Publication number: 20110159481
    Abstract: Methods for sequencing nucleic acids are presented. Sequencing is accomplished through the chemical amplification of the products of DNA synthesis and the detection of the chemically amplified products. In embodiments of the invention, a substrate is provided having a plurality of molecules of DNA to be sequenced attached and a plurality of molecules capable of chelating pyrophosphate ions attached, the DNA molecules to be sequenced are primed, and a next complementary nucleotide is incorporated and excised a plurality of times leading to the buildup of pyrophosphate ions locally around the DNA molecule to be sequenced. Pyrophosphate ions are captured by the substrate-attached chelators and electronically detected to determine the identity of the next complementary nucleic acid in the DNA molecule to be sequenced. Additionally, devices and methods are provided for detecting biomolecules through the detection of pyrophosphate ions.
    Type: Application
    Filed: December 30, 2009
    Publication date: June 30, 2011
    Inventors: David J. Liu, Xing Su, Kai Wu
  • Publication number: 20100240544
    Abstract: The embodiments of the invention relate to an in situ generated and self-addressed aptamer biochip for the multiplexed detection of biomolecules. The inventive aptamer biochip uses sets of complementary probes to permit in situ generation and immobilization of aptamers on the aptamer biochip surface to form an addressable aptamer array. These aptamer biochip arrays can be used for detecting multiple biomolecules, especially those for disease signature pattern analysis.
    Type: Application
    Filed: September 29, 2006
    Publication date: September 23, 2010
    Inventors: David J. Liu, Xing Su
  • Publication number: 20100167938
    Abstract: Embodiments of the present invention provide devices methods for sequencing DNA using arrays of reaction regions containing sensors to monitor changes in solutions or bound molecules contained in the reaction regions. Additional embodiments provide devices and methods for sequencing DNA using arrays of reaction regions that allow for optical monitoring of solutions in the reaction regions. Chemical amplification schemes that allow DNA to be sequenced in which multiple nucleotide addition reactions are performed to detect the incorporation of a base are disclosed. By sequencing DNA using parallel reactions contained in large arrays, DNA can be rapidly sequenced.
    Type: Application
    Filed: December 31, 2008
    Publication date: July 1, 2010
    Inventors: Xing Su, Kai Wu, David J. Liu
  • Publication number: 20090004670
    Abstract: Embodiments of the invention relate to SEF nanoparticles with increased fluorescence, methods of making SEF nanoparticles, and their application in various bioassays for the detection of target bioanalytes. One embodiment includes the SEF nanoparticle itself, a second embodiment includes the fabrication of SEF nanoparticles, a third embodiment includes methods of using SEF nanoparticles in biodetection assays. A final embodiment includes kits to be used in the fabrication of SEF nanoparticles.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 1, 2009
    Inventors: Jingwu Zhang, David J. Liu
  • Publication number: 20080209340
    Abstract: A method for personalizing content for a particular user in a computing system comprising a user interface configured to display content. The method comprises identifying a content item accessed by a user, identifying features associated with the content item; using the features of the content item to identify one or more third party profiles that substantially match a content profile of the content item, and displaying a list of the identified third party profiles.
    Type: Application
    Filed: February 14, 2008
    Publication date: August 28, 2008
    Applicant: AOL LLC
    Inventors: Sudhir Tonse, Arun K. Ranganathan, Brock Daniel LaPorte, Mike Macadaan, David J. Liu
  • Publication number: 20080209349
    Abstract: Systems and methods for personalization using image clouds to represent content. Image clouds can be used to identify initial user interest, present recommended content, present popular content, present search results, and present user profile information. Image clouds are interactive, allowing users to select images displayed in the image cloud, which can contribute to presenting more personalized content as well as updating a user's profile.
    Type: Application
    Filed: January 23, 2008
    Publication date: August 28, 2008
    Applicant: AOL LLC
    Inventors: Mike Macadaan, David J. Liu, James D. Simmons, Wendy Charlene Perlson, William G. Wetherell, Rob Metzgar
  • Publication number: 20080209339
    Abstract: Systems and methods for personalization using image clouds to represent content. Image clouds can be used to identify initial user interest, present recommended content, present popular content, present search results, and present user profile information. Image clouds are interactive, allowing users to select images displayed in the image cloud, which can contribute to presenting more personalized content as well as updating a user's profile.
    Type: Application
    Filed: January 23, 2008
    Publication date: August 28, 2008
    Applicant: AOL LLC
    Inventors: Mike Macadaan, David J. Liu, William G. Wetherell, James D. Simmons, Sudhir Tonse, Arun K. Ranganathan
  • Publication number: 20080209350
    Abstract: A method for personalizing content for a particular user in a computing system comprising a user interface configured to display content. The method comprises identifying a long term profile having one or more features in a feature set and a long term level of importance associated with each term in the feature set, identifying a short term profile having one or more features in the feature set and a short term level of importance associated with each term in the feature set, identifying input related to the display of the one or more content items on the user interface, and using the input to modify the short term level of importance and the long term level of importance associated with each term in the feature set to form a modified user interest set.
    Type: Application
    Filed: February 14, 2008
    Publication date: August 28, 2008
    Applicant: AOL LLC
    Inventors: David C. Sobotka, Sudhir Tonse, Brock D. LaPorte, Mike Macadaan, David J. Liu
  • Publication number: 20080160634
    Abstract: An embodiment of the invention relates to a device for detecting an analyte in a sample. The device comprises a fluidic network and an integrated circuitry component. The fluidic network comprises multiple zones such as a sample zone, a cleaning zone and a detection zone. The fluidic network contains a magnetic particle and/or a signal particle. A sample containing an analyte is introduced, and the analyte interacts with the magnetic particle and/or the signal particle through affinity agents. A microcoil array or a mechanically movable permanent magnet is functionally coupled to the fluidic network, which are activatable to generate a magnetic field within a portion of the fluidic network, and move the magnetic particle from the sample zone to the detection zone. A detection element is present which detects optical or electrical signals from the signal particle, thus indicating the presence of the analyte.
    Type: Application
    Filed: December 28, 2006
    Publication date: July 3, 2008
    Inventors: Xing Su, Kai Wu, David J. Liu
  • Publication number: 20080160622
    Abstract: An embodiment of the invention relates to a device for detecting an analyte in a sample. The device comprises a fluidic network and an integrated circuitry component. The fluidic network comprises a sample zone, a cleaning zone and a detection zone. The fluidic network contains a magnetic particle and/or a signal particle. A sample containing an analyte is introduced, and the analyte interacts with the magnetic particle and/or the signal particle through affinity agents. A microcoil array a mechanically movable permanent magnet is functionally coupled to the fluidic network, which are activatable to generate a magnetic field within a portion of the fluidic network, and move the magnetic particle from the sample zone to the detection zone. A detection element is present which detects optical or electrical signals from the signal particle, thus indicating the presence of the analyte.
    Type: Application
    Filed: December 29, 2006
    Publication date: July 3, 2008
    Applicant: Intel Corporation
    Inventors: Xing Su, David J. Liu, Kenneth B. Swartz, Kai Wu, Mineo Yamakawa
  • Publication number: 20080160630
    Abstract: An embodiment of the invention relates to a device for detecting an analyte in a sample. The device comprises a fluidic network and an integrated circuitry component. The fluidic network comprises a sample zone, a cleaning zone and a detection zone. The fluidic network contains a magnetic particle and/or a signal particle. A sample containing an analyte is introduced, and the analyte interacts with the magnetic particle and/or the signal particle through affinity agents. A microcoil array or a mechanically movable permanent magnet is functionally coupled to the fluidic network, which are activatable to generate a magnetic field within a portion of the fluidic network, and move the magnetic particle from the sample zone to the detection zone. A detection element is present which detects optical or electrical signals from the signal particle, thus indicating the presence of the analyte.
    Type: Application
    Filed: December 29, 2006
    Publication date: July 3, 2008
    Applicant: Intel Corporation
    Inventors: David J. Liu, Kai Wu, Xing Su
  • Publication number: 20040220876
    Abstract: Beneficial services such as a pay stub service, a tax document service, or a messaging service may be provided on a financial services platform such as an automated teller machine network services platform. The edge-connections of a financial services network that is part of the platform may be terminals that are publicly accessible, designated for public use, and/or dispersed over a wide area. Automated authorization checking for determining whether beneficial use may be gained may be implemented. Benefits such as the presentation of information via display or printout may be provided. The content of the benefit may be one that is sought to be delivered by a third party other then financial institution of the current user.
    Type: Application
    Filed: May 2, 2003
    Publication date: November 4, 2004
    Inventor: David J. Liu
  • Publication number: 20030233318
    Abstract: A system and method permits the transfer of funds between a transferor account and a transferee account through interaction with a transfer execution system. Money may be transferred from one account to another account in a different financial institution, which may occur for example in real time or without substantial delay in completing the process. The accounts that are to be used in the transfer may be identified based on the communications addresses of the users communicating with the system. A transfer code may be provided which in some embodiments may be used to identify one or more of the accounts to be used for the transfer when the transfer code is submitted to the system by one of the participants of the transfer. To implement desired transfers, the system may communicate with a financial network which may provide communications with the financial institutions of the users.
    Type: Application
    Filed: November 26, 2002
    Publication date: December 18, 2003
    Inventors: Douglas W. King, David J. Liu