Patents by Inventor Xiang Yang Liu

Xiang Yang 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: 10844238
    Abstract: An ink contains an admixture of a copper nanoparticle, a copper precursor molecule (e.g. a copper-aminediol complex), and a polymeric binder, the polymeric binder containing a polyester, polyimide, polyether imide or any mixture thereof having surface 5 functional groups that render the polymeric binder compatible with and/or soluble in a diol. The ink may be deposited on a substrate providing a trace that is conductive and directly solderable and has better mechanical strength than copper inks containing other types of polymeric binders.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: November 24, 2020
    Inventors: Bhavana Deore, Chantal Paquet, Xiang Yang Liu, Patrick Malenfant
  • Publication number: 20190177565
    Abstract: An ink contains an admixture of a copper nanoparticle, a copper precursor molecule (e.g. a copper-aminediol complex), and a polymeric binder, the polymeric binder containing a polyester, polyimide, polyether imide or any mixture thereof having surface 5 functional groups that render the polymeric binder compatible with and/or soluble in a diol. The ink may be deposited on a substrate providing a trace that is conductive and directly solderable and has better mechanical strength than copper inks containing other types of polymeric binders.
    Type: Application
    Filed: July 19, 2017
    Publication date: June 13, 2019
    Inventors: Bhavana DEORE, Chantal PAQUET, Xiang Yang LIU, Patrick MALENFANT
  • Patent number: 9733393
    Abstract: Light-reflective materials and methods for their preparation and use are described. The materials can have multiple particles or voids arranged in a crystal structure. The materials can reflect various types of light such as visible light, ultraviolet light, or infrared light.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: August 15, 2017
    Assignee: National University of Singapore
    Inventors: Xiang Yang Liu, Ying Ying Diao
  • Publication number: 20150176157
    Abstract: The invention provides an enhanced silk fiber rivaling spider silk in mechanical performance, in combination with a very low-cost method for producing it from the usual silkworms. The method provides for the simple application of an electric field which results in an enhancement of over (?) 40% in the strength, and of 200% in the breaking energy with respect to ordinary silkworm silk. The critical elasticity is enhanced to the level of the dragline spider silk. The provided enhanced silk protein material has the same protein primary structure, fiber diameter and length of the customary silk. The method of formation offers the following advantages in comparison to other methods available in the prior art. Industrial scale production can be readily and cost-effectively achieved, given the wide-range availability of silkworms. The provided method relies largely on the present standard production processes of silkworm silk, and hence a low level of investment is required.
    Type: Application
    Filed: December 17, 2014
    Publication date: June 25, 2015
    Inventors: Xiang Yang Liu, Ning Du
  • Patent number: 8897151
    Abstract: A computer-implemented system is provided for implementing application protocol field extraction. The system includes: an automata generator configured to receive the extraction specification that specifies data elements to be extracted from data packets and generate a counting automaton; and a field extractor configured to receive a data flow and operates to extract data elements from the data packets in accordance with the counting automaton. The extraction specification is expressed in terms of a context-free grammar, where the grammar defines grammatical structures of data packets transmitted in accordance with an application protocol and includes counters used to chronicle parsing history of production rules comprising the grammar.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: November 25, 2014
    Assignee: Board of Trustees of Michigan State University
    Inventors: Xiang-Yang A. Liu, Chad R. Meiners, Eric Torng
  • Patent number: 8887266
    Abstract: A method is provided for computing network reachability in a computer network. The method includes: identifying each of the subnetworks that comprise a computer network; determining, for each pair of subnetworks, data paths between the two subnetworks; for each identified data path, identifying access control lists implemented along a given data path and formulating a diagram that merges reachability sets derived from the access control lists along the given data path; and, deriving, for each pair of subnetworks, a set of network packets that can traverse between the subnetworks from the formulated diagrams.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: November 11, 2014
    Assignee: Board of Trustees of Michigan State University
    Inventors: Xiang-Yang A. Liu, Amir Khakpour
  • Patent number: 8666931
    Abstract: A method is provided for implementing regular expression matching using ternary content-addressable memory devices. The method includes: receiving a set of regular expressions (REs) that specify data elements to be extracted from data packets; constructing a deterministic finite automaton (DFA) from the set of regular expressions; building a state transition table for each node of the deterministic finite automaton; combining the state transition tables into a single lookup table; and instantiating the lookup table in a ternary content-addressable memory device. Additional techniques are provided to reduce the TCAM space and improve RE matching speed.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: March 4, 2014
    Assignee: Board of Trustees of Michigan State University
    Inventors: Xiang-Yang A. Liu, Chad R. Meiners, Eric Torng
  • Patent number: 8375165
    Abstract: An improved technique is provided for compressing a packet classifier for a computer network system. A set of packet classification rules is first partitioned into one or more partitions. For each partition, columns of bits in each of the ternary strings of a given partition are reordered, the ternary strings within each partition are consolidated into one or more replacement strings and then the columns of bits of the replacement strings are rearranged back to the starting order. The rearranged replacement strings from each of the partitions are appended together to form a compressed packet classifier which may be instantiated in a content-addressable memory device.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: February 12, 2013
    Assignee: Board of Trustees of Michigan State University
    Inventors: Xiang-Yang A. Liu, Chad R. Meiners, Eric Torng
  • Publication number: 20120218653
    Abstract: Light-reflective materials and methods for their preparation and use are described. The materials can have multiple particles or voids arranged in a crystal structure. The materials can reflect various types of light such as visible light, ultraviolet light, or infrared light.
    Type: Application
    Filed: February 24, 2011
    Publication date: August 30, 2012
    Applicant: NATIONAL UNIVERSITY OF SINGAPORE
    Inventors: Xiang Yang Liu, Ying Ying Diao
  • Publication number: 20120191833
    Abstract: A computer-implemented system is provided for implementing application protocol field extraction. The system includes: an automata generator configured to receive the extraction specification that specifies data elements to be extracted from data packets and generate a counting automaton; and a field extractor configured to receive a data flow and operates to extract data elements from the data packets in accordance with the counting automaton. The extraction specification is expressed in terms of a context-free grammar, where the grammar defines grammatical structures of data packets transmitted in accordance with an application protocol and includes counters used to chronicle parsing history of production rules comprising the grammar.
    Type: Application
    Filed: July 15, 2011
    Publication date: July 26, 2012
    Applicant: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY
    Inventors: Xiang-Yang A. Liu, Chad R. Meiners, Eric Torng
  • Publication number: 20120096220
    Abstract: An improved technique is provided for compressing a packet classifier for a computer network system. A set of packet classification rules is first partitioned into one or more partitions. For each partition, columns of bits in each of the ternary strings of a given partition are reordered, the ternary strings within each partition are consolidated into one or more replacement strings and then the columns of bits of the replacement strings are rearranged back to the starting order. The rearranged replacement strings from each of the partitions are appended together to form a compressed packet classifier which may be instantiated in a content-addressable memory device.
    Type: Application
    Filed: January 6, 2011
    Publication date: April 19, 2012
    Applicant: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY
    Inventors: Xiang-Yang A. Liu, Chad R. Meiners, Eric Torng
  • Publication number: 20120072380
    Abstract: A method is provided for implementing regular expression matching using ternary content-addressable memory devices. The method includes: receiving a set of regular expressions (REs) that specify data elements to be extracted from data packets; constructing a deterministic finite automaton (DFA) from the set of regular expressions; building a state transition table for each node of the deterministic finite automaton; combining the state transition tables into a single lookup table; and instantiating the lookup table in a ternary content-addressable memory device. Additional techniques are provided to reduce the TCAM space and improve RE matching speed.
    Type: Application
    Filed: July 15, 2011
    Publication date: March 22, 2012
    Applicant: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY
    Inventors: Xiang-Yang A. Liu, Chad R. Meiners, Eric Torng
  • Publication number: 20120039813
    Abstract: This present invention proposes a method of producing intrinsically colored, luminescent silk fibroin by feeding silkworms with feed comprising the luminescent dyes as well as the appropriate degumming process to remove sericin while retaining the dyes in silk fibroin are also described. Luminescent and functional molecular organic dyes with balanced hydrophobic/hydrophobic properties that can be effectively absorbed into silk glands of the silkworm are also described.
    Type: Application
    Filed: February 17, 2010
    Publication date: February 16, 2012
    Inventors: Natalia Chendrawati Tansil, Ming-Yong Han, Xiang Yang Liu, Radiana Soh, Yang Li
  • Publication number: 20110173692
    Abstract: A method is provided for computing network reachability in a computer network. The method includes: identifying each of the subnetworks that comprise a computer network; determining, for each pair of subnetworks, data paths between the two subnetworks; for each identified data path, identifying access control lists implemented along a given data path and formulating a diagram that merges reachability sets derived from the access control lists along the given data path; and, deriving, for each pair of subnetworks, a set of network packets that can traverse between the subnetworks from the formulated diagrams.
    Type: Application
    Filed: January 7, 2011
    Publication date: July 14, 2011
    Applicant: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY
    Inventors: Xiang-Yang A. Liu, Amir Khakpour
  • Publication number: 20100068517
    Abstract: The invention provides an enhanced silk fiber rivaling spider silk in mechanical performance, in combination with a very low-cost method for producing it from the usual silkworms. The method provides for the simple application of an electric field which results in an enhancement of over (?) 40% in the strength, and of 200% in the breaking energy with respect to ordinary silkworm silk. The critical elasticity is enhanced to the level of the dragline spider silk. The provided enhanced silk protein material has the same protein primary structure, fiber diameter and length of the customary silk. The method of formation offers the following advantages in comparison to other methods available in the prior art. Industrial scale production can be readily and cost-effectively achieved, given the wide-range availability of silkworms. The provided method relies largely on the present standard production processes of silkworm silk, and hence a low level of investment is required.
    Type: Application
    Filed: September 12, 2007
    Publication date: March 18, 2010
    Applicant: NATIONAL UNIVERSITY OF SINGAPORE
    Inventors: Xiang Yang Liu, Ning Du
  • Publication number: 20070259335
    Abstract: A method de novo is provided for predicting crystallization conditions and for crystallizing biomacromolecules, in particular proteins. The method provides a simple, quick and precise approach in determining the biomacromolecule solubility in different solutions, as well as the boundary between crystallization and aggregation. Because the method relies only on monitoring the assembly behavior of the biomacromolecule at the surface of a solution, it has general applicability and requires a relatively short amount of time to provide results that are reliable. Because there is no need to first crystallize the biomacromolecule, small amounts of protein are sufficient. Because the method works by measuring the surface tension or pressure of the surface of the biomacromolecule solution, it is easy, precise and quick. Furthermore it is cost-effective in requiring simple and inexpensive equipment.
    Type: Application
    Filed: February 21, 2005
    Publication date: November 8, 2007
    Inventors: Xiang-Yang Liu, Yan Jia
  • Publication number: 20070016946
    Abstract: A system, method, and computer-usable medium for firewall query processing. In a preferred embodiment of the present invention, a firewall query manager receives a firewall query and a firewall expressed as a sequence of rules. The firewall query manager first constructs a firewall decision tree from the given sequence of rules. Then the firewall query manager marks all the paths in said firewall decision tree as unprocessed. In response to selecting an unprocessed path for comparison, the firewall query manager computes a partial result by comparing the unprocessed path and the firewall query. In response to determining no more paths among all the paths in said firewall decision tree are to be processed, the firewall query manager computes a final result from at least one partial result.
    Type: Application
    Filed: July 14, 2006
    Publication date: January 18, 2007
    Inventors: Mohamed Gouda, Xiang-Yang Liu
  • Publication number: 20060294577
    Abstract: A system, computer-implementable method, and computer-usable medium for resolving discrepancies between diverse firewall designs. In a preferred embodiment of the present invention, a firewall design manager receives at least two designs for a rule-based system and computing at least one functional discrepancy between the at least two designs utilizing decision diagrams.
    Type: Application
    Filed: May 31, 2006
    Publication date: December 28, 2006
    Inventors: Mohamed Gouda, Xiang-Yang Liu
  • Publication number: 20060277601
    Abstract: A system, method, and computer-usable medium for removing redundancy from packet classifiers. In a preferred embodiment of the present invention, a packet classifier is implemented as a sequence of rules. A redundancy manager marks at least one upward redundant rule and at least one downward redundant rule. The redundancy manager removes at least one rule marked as upward redundant and at least one rule marked as downward redundant.
    Type: Application
    Filed: May 31, 2006
    Publication date: December 7, 2006
    Inventors: Mohamed Gouda, Xiang-Yang Liu
  • Publication number: 20060218280
    Abstract: A system, method and computer-usable medium for designing a firewall to protect a data processing system. A user first specifies a firewall decision diagram. The firewall decision diagram is then reduced and marked. Finally, a firewall is generated from the marked firewall decision diagram.
    Type: Application
    Filed: March 22, 2006
    Publication date: September 28, 2006
    Inventors: Mohamed Gouda, Xiang-Yang Liu