Patents by Inventor Jianguo Xu

Jianguo Xu 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: 9036869
    Abstract: A method of detecting multi-surfaces of an object includes providing an imaging system capable of detecting surfaces of the object. After system parameters are set up, two-dimensional images of the object at multiple Z steps can be acquired. Each surface of the object can then be extracted using two steps. In a first step, the surface can be constructed based on a confidence threshold. In a second step, the surface can be enhanced using an interpolation filter.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: May 19, 2015
    Assignee: Zeta Instruments, Inc.
    Inventors: Ken Kinsun Lee, Ronny Soetarman, Zhen Hou, James Jianguo Xu, Rusmin Kudinar, Vamsi Mohan Velidandla, Ben Garland
  • Publication number: 20150113104
    Abstract: A live streaming system/method provides cross platform live streaming capabilities to mobile devices. A file format compatible with legacy HTTP infrastructure is used to deliver media over a persistent connection. Legacy client media players can dynamically change the encoded rate of the media delivered over a persistent connection. Standard HTTP servers may be used without modification, leveraging standard media players embedded in mobile devices for seamless media delivery over wireless networks with high bandwidth fluctuations.
    Type: Application
    Filed: January 6, 2015
    Publication date: April 23, 2015
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Kevin J. Ma, Jianguo Xu, Raj Nair, IChang Lin
  • Publication number: 20150106481
    Abstract: A method and system is provided for controlling bandwidth rate limiting and client rendering rate limiting in a video delivery network. The method provides network service providers with a means for overriding video delivery data rates selected through dynamic client bitrate adaptation, as well as video data rendering rates of the clients, to limit the impact of network congestion. A system is also specified for implementing a client and a proxy computer in accordance with the method. The system works transparently with standard HTTP-based video delivery systems and includes an HTTP proxy cache infrastructure to support bandwidth rate limiting and client rending rate limiting. The system further provides for administrative overrides of client bitrate selection and client bandwidth usage.
    Type: Application
    Filed: December 17, 2014
    Publication date: April 16, 2015
    Inventors: Kevin J. Ma, Raj Nair, Robert Hickey, Jianguo Xu
  • Patent number: 8976366
    Abstract: A measurement system for monitoring an LED chip surface roughening process is described. A reflective illuminator can run reflectance measurements. A vertical positioning means can adjust a distance between an objective lens and an industrial sample. A horizontal positioning means can move objects in XY plane, and is specifically configured to hold the industrial sample and a reference sample. An optical sensor can acquire images of the industrial sample. A spectrometer can acquire reflectance spectrums of the industrial sample and the reference sample. A processor can control these components. The processor can perform deskew, and calculate an average reflectance and an oscillation amplitude from the reflectance spectrums of the industrial sample.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: March 10, 2015
    Assignee: Zeta Instruments, Inc.
    Inventors: James Jianguo Xu, Ken Kinsun Lee, Rusmin Kudinar, Ronny Soetarman, Hung Phi Nguyen, Zhen Hou
  • Publication number: 20150057168
    Abstract: The present inventions relates to primers for identifying Shigella flexneri serotypes comprising the sequences of SEQ ID Nos. 1 and 2, SEQ ID Nos. 3 and 4, SEQ ID Nos. 5 and 6, SEQ ID Nos. 7 and 8, SEQ ID Nos. 9 and 10, SEQ ID Nos. 11 and 12, SEQ ID Nos. 13 and 14, SEQ ID Nos. 15 and 16. These primers are specific and have a common annealing temperature. The present invention further relates to a multiplex amplification-based identification method using the primers. The present invention further relates to the use of the primers for identifying Shigella flexneri serotypes for the preparation of identification agents. The present invention further relates to a kit for identifying Shigella flexneri comprising the above primers.
    Type: Application
    Filed: August 29, 2012
    Publication date: February 26, 2015
    Applicant: National Institute for Communicable Disease Control and Prevention, China CDC
    Inventors: Qiangzheng Sun, Jianping Wang, Jianguo Xu
  • Patent number: 8929441
    Abstract: A live streaming system/method provides cross platform live streaming capabilities to mobile devices. A file format compatible with legacy HTTP infrastructure is used to deliver media over a persistent connection. Legacy client media players can dynamically change the encoded rate of the media delivered over a persistent connection. Standard HTTP servers may be used without modification, leveraging standard media players embedded in mobile devices for seamless media delivery over wireless networks with high bandwidth fluctuations.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: January 6, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Kevin J. Ma, Jianguo Xu, Raj Nair, IChang Lin
  • Publication number: 20140373713
    Abstract: A pressure swing adsorption process for an adsorption system having 12 adsorption beds, the process having a cycle with 5 pressure equalization steps. Background is provided for the various pressure swing adsorption cycle steps.
    Type: Application
    Filed: September 11, 2014
    Publication date: December 25, 2014
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Edward Landis Weist, JR., Dingjun Wu, Jianguo Xu, Blaine Edward Herb, Bryan Clair Hoke, JR.
  • Patent number: 8918535
    Abstract: A method and system is provided for controlling bandwidth rate limiting and client rendering rate limiting in a video delivery network. The method provides network service providers with a means for overriding video delivery data rates selected through dynamic client bitrate adaptation, as well as video data rendering rates of the clients, to limit the impact of network congestion. A system is also specified for implementing a client and a proxy computer in accordance with the method. The system works transparently with standard HTTP-based video delivery systems and includes an HTTP proxy cache infrastructure to support bandwidth rate limiting and client rending rate limiting. The system further provides for administrative overrides of client bitrate selection and client bandwidth usage.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: December 23, 2014
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Kevin J. Ma, Raj Nair, Robert Hickey, Jianguo Xu
  • Publication number: 20140353886
    Abstract: An apparatus and/or system and method for recycling vent gas from an autoclave is disclosed including cooling and cleaning a vent gas, introducing the cooled and cleaned resultant stream into a purification unit to remove at least a portion of the carbon dioxide and water vapor contained therein, and recycling the purified stream enriched in oxygen into the autoclave or another process requiring enriched oxygen.
    Type: Application
    Filed: May 23, 2014
    Publication date: December 4, 2014
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Matthew J. Thayer, Jianguo Xu
  • Patent number: 8874779
    Abstract: A live streaming system/method provides cross platform live streaming capabilities to mobile devices. A file format compatible with legacy HTTP infrastructure is used to deliver media over a persistent connection. Legacy client media players can dynamically change the encoded rate of the media delivered over a persistent connection. Standard HTTP servers may be used without modification, leveraging standard media players embedded in mobile devices for seamless media delivery over wireless networks with high bandwidth fluctuations.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: October 28, 2014
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Kevin J. Ma, Jianguo Xu, Raj Nair, Ichang Lin
  • Patent number: 8874778
    Abstract: A live streaming system/method provides cross platform live streaming capabilities to mobile devices. The live streaming system includes a live streaming recorder operative to (1) capture a live media stream generated by a live media source and save the captured live media stream as a recorded stream in a recorded media file, and (2) transcode the recorded stream into a plurality of transcoded media files of respective different media encoding formats. The system further includes a stream distribution subsystem operative to generate a plurality of distributed media streams each generated from one or more of the transcoded media files, each distributed media stream being delivered to a corresponding set of the mobile endpoint devices.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: October 28, 2014
    Assignee: Telefonkatiebolaget LM Ericsson (Publ)
    Inventors: Jianguo Xu, Man Li, Tung Ng, IChang Lin, Raj Nair
  • Patent number: 8874777
    Abstract: A streaming media system employs dynamic rate adaptation. The method includes a file format compatible with legacy HTTP infrastructure to deliver media over a persistent connection. The method further includes the ability for legacy client media players to dynamically change the encoded delivery rate of the media over a persistent connection. The method provided works transparently with standard HTTP servers, requiring no modification and leverages standard media players embedded in mobile devices for seamless media delivery over wireless networks with high bandwidth fluctuations. A system is also specified for implementing a client and server in accordance with the method.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: October 28, 2014
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Kevin J. Ma, Tung Ng, Jianguo Xu, Raj Nair
  • Publication number: 20140295818
    Abstract: Embodiments of the present invention disclose a method, a base station, and a network system for automatic X2 configuration deletion, where implementation of the method includes: acquiring, by a first base station, neighboring-cell configuration data of a second base station; determining, by the first base station according to neighboring-cell configuration data of the first base station and the neighboring-cell configuration data of the second base station, whether a neighboring-cell relationship exists between the first base station and the second base station; and if no neighboring-cell relationship exists between the first base station and the second base station, deleting X2 configuration data corresponding to an X2 interface between the first base station and the second base station. The foregoing solution implements automatic deletion of redundant X2 configuration data and does not require that the first base station and the second base station be managed by a same network management system.
    Type: Application
    Filed: June 13, 2014
    Publication date: October 2, 2014
    Inventors: Yan Wang, Zhifeng Wang, Jianguo Xu
  • Patent number: 8778051
    Abstract: A process for separating a primary gas component from a feed gas mixture comprising the primary gas component and secondary gas components in four or more adsorption beds. The process comprises subjecting each of the four or more adsorption beds to a repetitive cycle. The repetitive cycle comprises, in sequence, a feed step, a pressure decreasing equalization step, a provide purge step, a blowdown step, a purge step, a pressure increasing equalization step, and a repressurization step. During the pressure decreasing equalization step, rinse gas is co-currently introduced simultaneous with the withdrawal of pressure equalization gas. Rinse gas is formed by compressing blowdown gas and/or purge gas effluent from the adsorption bed undergoing the purge step. The process is particularly suited for separating H2 from a reformate stream.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: July 15, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Edward Landis Weist, Jr., Jianguo Xu
  • Publication number: 20140150019
    Abstract: A method is provided for performing targeted ad insertion in over-the-top delivery of content by detecting ad replacement opportunities in a live content stream and preparing the content for seamless replacement with segmented HTTP adaptive streaming delivery. The method includes provisions for multi-stage proxy-based segment replacement for targeted ad delivery. The method provided works transparently with standard HTTP adaptive streaming clients. A system is also specified for implementing a client and server content delivery infrastructure in accordance with the provisions of the method.
    Type: Application
    Filed: January 30, 2014
    Publication date: May 29, 2014
    Applicant: Azuki Systems, Inc.
    Inventors: Kevin J. Ma, Robert Hickey, Raj Nair, Paul Tweedale, Daniel Biagini, Jianguo Xu, Prabhudev Navali
  • Publication number: 20140149210
    Abstract: A method is provided for performing targeted ad insertion in over-the-top delivery of content by detecting ad replacement opportunities in a live content stream and preparing the content for seamless replacement with segmented HTTP adaptive streaming delivery. The method includes provisions for multi-stage proxy-based segment replacement for targeted ad delivery. The method provided works transparently with standard HTTP adaptive streaming clients. A system is also specified for implementing a client and server content delivery infrastructure in accordance with the provisions of the method.
    Type: Application
    Filed: January 30, 2014
    Publication date: May 29, 2014
    Applicant: Azuki Systems, Inc.
    Inventors: Kevin J. Ma, Robert Hickey, Raj Nair, Paul Tweedale, Daniel Biagini, Jianguo Xu, Prabhudev Navali
  • Patent number: 8715617
    Abstract: A hydrogen production process wherein steam and a hydrocarbon feed is reacted in a prereformer, the prereformed intermediate is further reacted in an oxygen-based reformer, the reformate is shifted and then separated by a pressure swing adsorber to form a H2 product stream and a tail gas, a first portion of the tail gas is recycled to the prereformer and/or the oxygen-based reformer, and a second portion of the tail gas is recycled to the pressure swing adsorber.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: May 6, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Eugene S. Genkin, Patricia Kentosh Hershman, Edward Landis Weist, Jr., Jianguo Xu
  • Patent number: 8709136
    Abstract: A process for separating a first gas, for example CO2, from a feed gas mixture comprising the first gas and a second gas, for example H2, in five or more adsorption beds each containing an adsorbent selective for the first gas. The process comprises subjecting each of the adsorption beds to a repetitive cycle comprising, in sequence, (a) a feed step, (b) a rinse step, (c) a pressure decreasing equalization step, (d) a blowdown step, (e) an evacuation step, (f) a pressure increasing equalization step, and (g) a repressurization step. The feed gas mixture may be a reformate from a steam-hydrocarbon reforming process.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: April 29, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Kuo-Kuang Hsu, Jonathan James Berg, Jianguo Xu, Edward Landis Weist, Jr.
  • Patent number: 8683825
    Abstract: A system and method for recovering helium-3 from helium. A distillation column having a top section that is smaller in diameter than a main section is provided. The column also includes an intermediate condenser that condenses vapor from the main section and above a helium feed stream. Reflux to the column can be provided by liquid helium-3 from a conduit or from an overhead condenser. In a preferred cycle, the distillation column is operated at a subatmospheric pressure, and in a temperature range between 2.3 K and 4.3 K.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: April 1, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Jianguo Xu, David Ross Graham, Vipul S. Parekh
  • Patent number: 8671715
    Abstract: A system and method for recovering helium-3 from helium. A distillation column having a top section that is smaller in diameter than a main section is provided. The column also includes an intermediate condenser located in the main section and above a helium feed stream. Reflux to the column can be provided by liquid helium-3 from a conduit or from an overhead condenser. In a preferred cycle, the distillation column is operated at a subatmospheric pressure, and in a temperature range between 2.3 K and 4.3 K.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: March 18, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Jianguo Xu, David Ross Graham, Vipul S. Parekh