Patents by Inventor Xiaohua Wu

Xiaohua Wu 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).

  • Publication number: 20190182129
    Abstract: The technology disclosed provides a method of testing handling of HTTPS sessions of a plurality of clients with a plurality of servers by a switching, bridging or routing device (i.e., a DUT), where the testing is conducted by a test system coupled to ports on the DUT. The method includes using client state machines running on at least four processor cores, communicating through the DUT with server state machines running on at least four additional processor cores. The method also includes, for each connection between a client represented by a client state machine and a server represented by a server state machine, setting up an HTTPS session by negotiating an encryption protocol and completing an HTTPS handshake. Further, the method includes following the setup of between 100,000 HTTPS sessions and 10,000,000 HTTPS sessions, conducting a stress test including combining payload data and header information without using the negotiated encryption.
    Type: Application
    Filed: December 11, 2017
    Publication date: June 13, 2019
    Applicant: Spirent Communications, Inc.
    Inventors: Kevin Canady, Richard Wank, Xiaohua Wu, Chunsheng Li
  • Patent number: 10221168
    Abstract: The present invention provides compounds that can enhance functional O-mannosylation of proteins including alpha-dystroglycan. Also provided are methods of preparation of the compounds defined by the formula I. Also provided are the methods of using the compounds or the pharmaceutical acceptable salts or prodrugs thereof in treating and preventing subjects suffering from the diseases including muscular dystrophies and cancers.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: March 5, 2019
    Inventor: Xiaohua Wu
  • Patent number: 10108845
    Abstract: Using multiple imaging modes in whole slide image screening is potentially useful to reduce false positives. To use multiple imaging modes, a method for locating anomalies on a medical sample from an image thereof uses an anomaly-detection process that comprises using plural base classifiers individually to classify an object-of-interest suspected to be an anomaly. Each base classifier respectively extracts features of the object-of-interest and generates, according to the extracted features, a score indicating a likelihood of the object-of-interest being anomalous. The anomaly-detection process further comprises using an aggregate classifier to combine the scores generated by the base classifiers to determine whether the object-of-interest is the anomaly.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: October 23, 2018
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Xiaohua Wu, Yan Nei Law
  • Patent number: 10083582
    Abstract: A data collection and processing apparatus with anti-theft function, a system using the apparatus and a data collection and processing method thereof are provided. The method includes the steps of: collecting relevant information regarding at least one targeted object, wherein the relevant information includes status information, operational information, environmental information of the targeted object, and user information of an owner or user of the targeted object; and performing an alarm when detecting that the targeted object is not under a normal status. The data collection and processing apparatus includes a transducer module, a master control module and an alarm and data processing module, which may form a local network connection or a distributed data processing network. In addition to performing anti-theft function, the present invention is capable of collecting various relevant information of the protected object.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: September 25, 2018
    Assignees: QUASION INC.
    Inventors: Xiaohua Wu, Ziyue Ouyang
  • Publication number: 20180253589
    Abstract: Using multiple imaging modes in whole slide image screening is potentially useful to reduce false positives. To use multiple imaging modes, a method for locating anomalies on a medical sample from an image thereof uses an anomaly-detection process that comprises using plural base classifiers individually to classify an object-of-interest suspected to be an anomaly. Each base classifier respectively extracts features of the object-of-interest and generates, according to the extracted features, a score indicating a likelihood of the object-of-interest being anomalous. The anomaly-detection process further comprises using an aggregate classifier to combine the scores generated by the base classifiers to determine whether the object-of-interest is the anomaly.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 6, 2018
    Inventors: Xiaohua WU, Yan Nei LAW
  • Patent number: 10049546
    Abstract: An anti-theft system includes at least one MEMS module, a master controlling module and an alerting module. The MEMS module is used for detecting a velocity, an acceleration and/or a spatial location of the MEMS module, and transferring the detected velocity, the acceleration or the spatial location of the MEMS module to the master controlling module. The master controlling module is used for determining whether the MEMS module is disposed within an anti-theft range according to the velocity, the acceleration or the spatial location of the MEMS module, and sending an alerting signal to the alerting module once the MEMS module is determined to be disposed outside of the anti-theft range. The alerting module is used for performing an alerting action when receiving the alerting signal. An anti-theft device and an anti-theft method are also provided.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: August 14, 2018
    Assignees: QUASION INC.
    Inventors: Xiaohua Wu, Huosheng Hu, Ian Dukes, Xiaolong Li, Ziyue Ouyang
  • Patent number: 9953497
    Abstract: A merchandise security system with data collection features and a relevant method are disclosed. The system has: a data management unit, at least one alarm unit and at least one alarm disabling unit, wherein the data management unit is configured to synchronize unlocking data in the alarm disabling unit and set unlocking judgment data in the alarm unit; the alarm unit can detect, in an alarm enabled state, whether a merchandise to be protected is in a normal state, and send out an alarm signal when judging that the merchandise to be protected is not in a normal state; and the alarm unit judges, according to the unlocking judgment data stored therein, whether the unlocking data is legitimate, and disable the alarm enabled state when judging that the unlocking data is legitimate. In the present disclosure, each of the unlocking judgment data corresponds to unique legitimate unlocking data embedded in the alarm disabling unit.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: April 24, 2018
    Assignee: QUASION INC.
    Inventors: Xiaohua Wu, Ziyue Ouyang
  • Patent number: 9940800
    Abstract: An anti-theft alarm device for protecting an electronic device from theft, includes a host, a connecting member and an alarm wire. The host includes a main control device, a charging contactor and an internal connecting wire. The charging contactor is connected to the main control device by the internal connecting wire in the host. The connecting member is fixedly attached to the electronic device and includes a charging terminal, a charging wire and an alarm connecting wire. The charging terminal and the charging wire are electrically connected. The charging wire is for connecting a charging port of the electronic device. The alarm connecting wire is for connecting the alarm wire and the electronic device. The alarm wire is for connecting the alarm connecting wire and the main control device. The charging contactor and the charging terminal are electrically connected when the host and the connecting member are mechanically connected.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: April 10, 2018
    Assignee: KUNMING QUASION TECH CO., LTD.
    Inventors: Xiaolong Li, Xiaohua Wu, Ziyue Ouyang
  • Publication number: 20170221327
    Abstract: A data collection and processing apparatus with anti-theft function is provided. The data collection and processing apparatus is configured for collecting and processing relevant information regarding at least one targeted object, wherein the relevant information comprises information indicating whether the targeted object is under a normal status. The data collection and processing apparatus is also configured for processing the relevant information and performing an alarm when detecting that the targeted object is not under the normal status. A data collection and processing system with anti-theft function using the apparatus and a data collection and processing method thereof are also provided.
    Type: Application
    Filed: March 4, 2014
    Publication date: August 3, 2017
    Inventors: Xiaohua WU, Ziyue OUYANG
  • Publication number: 20170039827
    Abstract: An anti-theft alarm device for protecting an electronic device from theft, includes a host, a connecting member and an alarm wire. The host includes a main control device, a charging contactor and an internal connecting wire. The charging contactor is connected to the main control device by the internal connecting wire in the host. The connecting member is fixedly attached to the electronic device and includes a charging terminal, a charging wire and an alarm connecting wire. The charging terminal and the charging wire are electrically connected. The charging wire is for connecting a charging port of the electronic device. The alarm connecting wire is for connecting the alarm wire and the electronic device. The alarm wire is for connecting the alarm connecting wire and the main control device. The charging contactor and the charging terminal are electrically connected when the host and the connecting member are mechanically connected.
    Type: Application
    Filed: April 17, 2014
    Publication date: February 9, 2017
    Inventors: Xiaolong LI, Xiaohua WU, Ziyue OUYANG
  • Publication number: 20170004687
    Abstract: A merchandise security system with data collection features and a relevant method are disclosed. The system has: a data management unit, at least one alarm unit and at least one alarm disabling unit, wherein the data management unit is configured to synchronize unlocking data in the alarm disabling unit and set unlocking judgment data in the alarm unit; the alarm unit can detect, in an alarm enabled state, whether a merchandise to be protected is in a normal state, and send out an alarm signal when judging that the merchandise to be protected is not in a normal state; and the alarm unit judges, according to the unlocking judgment data stored therein, whether the unlocking data is legitimate, and disable the alarm enabled state when judging that the unlocking data is legitimate. In the present disclosure, each of the unlocking judgment data corresponds to unique legitimate unlocking data embedded in the alarm disabling unit.
    Type: Application
    Filed: December 24, 2013
    Publication date: January 5, 2017
    Applicant: QUASION INC.
    Inventors: Xiaohua Wu, Ziyue Ouyang
  • Publication number: 20170004690
    Abstract: An anti-theft system includes at least one MEMS module, a master controlling module and an alerting module. The MEMS module is used for detecting a velocity, an acceleration and/or a spatial location of the MEMS module, and transferring the detected velocity, the acceleration or the spatial location of the MEMS module to the master controlling module. The master controlling module is used for determining whether the MEMS module is disposed within an anti-theft range according to the velocity, the acceleration or the spatial location of the MEMS module, and sending an alerting signal to the alerting module once the MEMS module is determined to be disposed outside of the anti-theft range. The alerting module is used for performing an alerting action when receiving the alerting signal. An anti-theft device and an anti-theft method are also provided.
    Type: Application
    Filed: January 29, 2014
    Publication date: January 5, 2017
    Inventors: Xiaohua WU, Huosheng HU, Ian DUKES, Xiaolong LI, Ziyue OUYANG
  • Publication number: 20160353284
    Abstract: Disclosed in the present invention are an antitheft device and a method, the device comprising: a main control module, at least one first I/O interface, at least one second I/O interface, a connection state detection module and an alarm module.
    Type: Application
    Filed: January 29, 2014
    Publication date: December 1, 2016
    Applicant: QUASION INC.
    Inventors: Xiaohua WU, Xiaolong LI, Ziyue OUYANG
  • Patent number: 9134523
    Abstract: This invention discloses an apparatus for achieving predictive focusing in an image scanning system. The apparatus comprises an optical path-length changing plate and an image sensor. In one embodiment, the plate comprises a plurality of path-length changing members. The plate further includes a central region configured to provide a substantially constant change in optical path length across the central region, allowing an image passing therethrough to be in-focus captured. Having a light receiving surface, each path-length changing member is configured to provide a substantially non-uniform change in optical path length across the light receiving surface, allowing a focus plane of the image to be tilted such that the image projected onto the imaging sensor can be used for predicting an amount of optical adjustment required to achieve focusing. By using more than one path-length changing member, predictive focusing is achievable with more than one direction of focus-plane tilting.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: September 15, 2015
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventor: Xiaohua Wu
  • Publication number: 20150022651
    Abstract: This invention discloses an apparatus for achieving predictive focusing in an image scanning system. The apparatus comprises an optical path-length changing plate and an image sensor. In one embodiment, the plate comprises a plurality of path-length changing members. The plate further includes a central region configured to provide a substantially constant change in optical path length across the central region, allowing an image passing therethrough to be in-focus captured. Having a light receiving surface, each path-length changing member is configured to provide a substantially non-uniform change in optical path length across the light receiving surface, allowing a focus plane of the image to be tilted such that the image projected onto the imaging sensor can be used for predicting an amount of optical adjustment required to achieve focusing. By using more than one path-length changing member, predictive focusing is achievable with more than one direction of focus-plane tilting.
    Type: Application
    Filed: July 19, 2013
    Publication date: January 22, 2015
    Inventor: Xiaohua WU
  • Patent number: 8917951
    Abstract: The presently claimed invention provides a method for stitching a plurality of images together in a way with least memory and CPU usage, and minimum file input and output, while still possessing fast computation speed to avoid post-scan delay for whole slide viewing and good stitching quality. The method of the present invention comprises the steps of calculating featureness of each candidate strip of a image by applying a mathematical transformation, calculating offset of the strip with correlation maximum location, calculating stitching reliability of the candidate strip from the pre-defined weighted function of its featureness and the correlation coefficients of each matching block, and determining optimal stitching path with stitching reliability.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: December 23, 2014
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Zuoping Chen, Xiaohua Wu
  • Patent number: 8809809
    Abstract: The presently claimed invention provides a focusing apparatus and method for a fluorescence microscope which is capable of shortening the time in focusing, increasing system throughput and avoiding from undesirable photo-bleaching. The fluorescence microscope of the present invention employs a portion of excitation light to form images of a sample to determine a focus plane for fluorescence imaging. As intensity of the portion of the excitation light is much higher than that of fluorescence light, the exposure time is highly reduced for image formation used for focusing purpose. The fluorescence microscope of the present invention enables to perform both predictive focusing and multiplex focusing.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: August 19, 2014
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventor: Xiaohua Wu
  • Patent number: 8693955
    Abstract: A method and apparatus for determining the location of a node within a wireless communication system is provided herein. In order to determine the location of a node, a series of GSM network measurement reports (NMRs) received at multiple base stations are analyzed by location-finding equipment. Multiple reports from the same mobile unit are analyzed for their received signal strength and multiple location estimates are then determined for the node. The location estimates are then averaged and weighted to determine an accurate location estimate for the node.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: April 8, 2014
    Inventors: Shaowei Pan, Xiaohua Wu
  • Patent number: 8600406
    Abstract: A first position (104) of the mobile client is determined at least in part by utilizing first signals received from at least one first signal source. The first signal source operates in a first location determination system (114). A second position (106) of at least one second signal source (120) is determined by utilizing both the determined first position of the mobile client and second signals received from the at least one second signal source (120). The second signal source (120) operates in a second location determination system. A third position (116) of the mobile client is determined utilizing the second signal source (120).
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: December 3, 2013
    Inventors: Shaowei Pan, Xiaohua Wu, Chuntao Zhang
  • Patent number: D803216
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: November 21, 2017
    Inventor: Xiaohua Wu