Patents by Inventor Lixin Tang

Lixin Tang 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: 20200012070
    Abstract: Provided are a lens drive motor, a camera and a mobile terminal apparatus. The lens drive motor includes a housing, a lens support, a coil and a magnet component; the coil is wrapped around the lens support and is provided in the housing; the magnet component is provided between the housing and the lens support, wherein a portion, corresponding to the magnet component, of the housing is made of a first material, and other portions of the housing are made of a second material; and a magnetic conductivity of the second material is smaller than a magnetic conductivity of the first material. A problem of insufficient driving force of the lens drive motor in a related technology is solved by the present disclosure.
    Type: Application
    Filed: November 5, 2018
    Publication date: January 9, 2020
    Inventors: Jianhua WANG, Gaofeng GONG, Lixin TANG
  • Patent number: 10355952
    Abstract: Techniques described herein relate to automatic upstream service resumption after downstream system failure. An automatic resumption module may be configured to monitor a downstream endpoint (of a problematic downstream service provider) and determine when it again successfully can process requests by periodically processing inbound requests (e.g., from suspended upstream service providers) and automatically re-enabling upstream endpoints for the suspended upstream service providers in the case of success. The automatic resumption module may start a trickle feed timer for each upstream endpoint to allow messages to be processed at a configured retry rate while the upstream endpoint remains suspended. The trickle feed timer may be configured to start upon the triggering of a circuit breaker for the involved downstream service. When downstream endpoint invocation succeeds, the automatic resumption module can resume all upstream endpoints associated with the downstream endpoint.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: July 16, 2019
    Assignee: Oracle International Corporation
    Inventors: Aninda Sengupta, Steven Gene Wolfangel, Philippe Le Mouel, Dennis Fuglsang, Lixin Tang, Sherry Weng, Bo Stern
  • Patent number: 10157092
    Abstract: Techniques described herein relate to automatic system suspension based upon downstream system failure in service-oriented architecture (SOA) applications. A system management module of a SOA system may be configured to detect a problem with a downstream service provider involved with a SOA application, and in response, automatically suspend particular processing within the application to prevent requests that may end up at the downstream service provider from entering the SOA application. The system management module may implement a circuit breaker module that maintains a circuit breaker structure specific to a downstream endpoint leading to a downstream service provider. Upon a triggering of a circuit breaker for a downstream endpoint, one or more upstream service providers are identified as associated with faulted traffic causing the triggering, and the system management module can automatically cause further traffic from these upstream service providers to be suspended.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: December 18, 2018
    Assignee: Oracle International Corporation
    Inventors: Aninda Sengupta, Steven Gene Wolfangel, Philippe Le Mouel, Dennis Fuglsang, Lixin Tang, Sherry Weng, Bo Stern
  • Patent number: 9734539
    Abstract: The present invention provides a coordinated coil scheduling method of multiple production lines in cold rolling area in steel plant, comprising: acquiring the information about the candidate coils to be scheduled in each of the multiple production lines in cold rolling area; building a coordinated coil scheduling model of multiple lines; obtaining the initial coordinated coil schedule of multiple lines by using a heuristic algorithm; improving the initial coordinated coil schedule in real time; and sending the improved coordinated coil schedule to the ACS of each production line. In this method, besides different production technological requirements of each coil, the cohesion relationship of different production lines are taken into account to make material supply to each equipment reasonable, and the smooth production process of coils in each of the lines is guaranteed with the changeover minimized, such that the whole efficiency of the manufacturing process is improved.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: August 15, 2017
    Assignee: NORTHEASTERN UNIVERSITY
    Inventors: Lixin Tang, Yang Yang, Shengnan Zhao
  • Patent number: 9734475
    Abstract: Slab matching method for multiple hot rolling lines comprises grouping the slabs and orders to obtain slab-order groups; based on a criterion of slab-order specification matching, determining a matching condition between the slab and the order within each of slab-order groups; quantitatively describing a mis-order slab matching problem; matching the mis-order slabs to the orders; quantitatively describing a slab re-matching problem; adjusting the matching relationships of all the slabs and the orders to form a final scheme of slab matching to be distributed to the multiple hot rolling lines to execute, and the slab matching method is completed. The present invention improves the utilization of the mis-order slabs while reducing the waste of energy caused by repeated steelmaking, reducing the consumption of the material and lowers the amount of left material and stored material and saves production cost and storage cost for the plant.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: August 15, 2017
    Assignee: NORTHEASTERN UNIVERSITY
    Inventors: Lixin Tang, Ying Meng
  • Patent number: 9640976
    Abstract: A wireless power transfer overvoltage protection system is provided. The system includes a resonant receiving circuit. The resonant receiving circuit includes an inductor, a resonant capacitor and a first switching device. The first switching device is connected the ends of the inductor. The first switching device has a first state in which the ends of the inductor are electrically coupled to each other through the first switching device, and a second state in which the inductor and resonant capacitor are capable of resonating. The system further includes a control module configured to control the first switching device to switching between the first state and the second state when the resonant receiving circuit is charging a load and a preset condition is satisfied and otherwise, the first switching device is maintained in the first state.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: May 2, 2017
    Assignee: UT-BATTELLE, LLC
    Inventors: Paul H. Chambon, Perry T. Jones, John M. Miller, Omer C. Onar, Lixin Tang, Clifford P. White
  • Patent number: 9626638
    Abstract: A method for assigning surplus slabs in slab yards to orders includes loading slab pre-yards of a plurality of production lines with surplus slabs, describing the assignment of the surplus slabs to the orders with a mathematical model, grouping order data and slab data based on steel grades, obtaining an assignment scheme for the surplus slabs and the orders in each group with a mixed scatter search algorithm, and assigning the surplus slabs to the orders using the assignment scheme. If a surplus slab is in a pre-yard of a production line associated with an order the surplus slab is assigned to, the slab is moved using a crane to the production line. Otherwise, the slab is moved to the pre-yard associated with the production line, and then moved using a crane to the production line. The slab is then heated and rolled by the production line.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: April 18, 2017
    Assignee: NORTHEASTERN UNIVERSITY
    Inventors: Lixin Tang, Ying Meng
  • Publication number: 20160314032
    Abstract: Techniques described herein relate to automatic system suspension based upon downstream system failure in service-oriented architecture (SOA) applications. A system management module of a SOA system may be configured to detect a problem with a downstream service provider involved with a SOA application, and in response, automatically suspend particular processing within the application to prevent requests that may end up at the downstream service provider from entering the SOA application. The system management module may implement a circuit breaker module that maintains a circuit breaker structure specific to a downstream endpoint leading to a downstream service provider. Upon a triggering of a circuit breaker for a downstream endpoint, one or more upstream service providers are identified as associated with faulted traffic causing the triggering, and the system management module can automatically cause further traffic from these upstream service providers to be suspended.
    Type: Application
    Filed: April 14, 2016
    Publication date: October 27, 2016
    Applicant: Oracle International Corporation
    Inventors: Aninda Sengupta, Steven Gene Wolfangel, Philippe Le Mouel, Dennis Fuglsang, Lixin Tang, Sherry Weng, Bo Stern
  • Publication number: 20160316028
    Abstract: Techniques described herein relate to automatic upstream service resumption after downstream system failure. An automatic resumption module may be configured to monitor a downstream endpoint (of a problematic downstream service provider) and determine when it again successfully can process requests by periodically processing inbound requests (e.g., from suspended upstream service providers) and automatically re-enabling upstream endpoints for the suspended upstream service providers in the case of success. The automatic resumption module may start a trickle feed timer for each upstream endpoint to allow messages to be processed at a configured retry rate while the upstream endpoint remains suspended. The trickle feed timer may be configured to start upon the triggering of a circuit breaker for the involved downstream service. When downstream endpoint invocation succeeds, the automatic resumption module can resume all upstream endpoints associated with the downstream endpoint.
    Type: Application
    Filed: April 14, 2016
    Publication date: October 27, 2016
    Applicant: Oracle International Corporation
    Inventors: Aninda Sengupta, Steven Gene Wolfangel, Philippe Le Mouel, Dennis Fuglsang, Lixin Tang, Sherry Weng, Bo Stern
  • Publication number: 20160254659
    Abstract: A wireless power transfer overvoltage protection system is provided. The system includes a resonant receiving circuit. The resonant receiving circuit includes an inductor, a resonant capacitor and a first switching device. The first switching device is connected the ends of the inductor. The first switching device has a first state in which the ends of the inductor are electrically coupled to each other through the first switching device, and a second state in which the inductor and resonant capacitor are capable of resonating. The system further includes a control module configured to control the first switching device to switching between the first state and the second state when the resonant receiving circuit is charging a load and a preset condition is satisfied and otherwise, the first switching device is maintained in the first state.
    Type: Application
    Filed: February 26, 2015
    Publication date: September 1, 2016
    Inventors: Paul H. Chambon, Perry T. Jones, John M. Miller, Omer C. Onar, Lixin Tang, Clifford P. White
  • Publication number: 20160155204
    Abstract: The present invention provides a coordinated coil scheduling method of multiple production lines in cold rolling area in steel plant, comprising: acquiring the information about the candidate coils to be scheduled in each of the multiple production lines in cold rolling area; building a coordinated coil scheduling model of multiple lines; obtaining the initial coordinated coil schedule of multiple lines by using a heuristic algorithm; improving the initial coordinated coil schedule in real time; and sending the improved coordinated coil schedule to the ACS of each production line. In this method, besides different production technological requirements of each coil, the cohesion relationship of different production lines are taken into account to make material supply to each equipment reasonable, and the smooth production process of coils in each of the lines is guaranteed with the changeover minimized, such that the whole efficiency of the manufacturing process is improved.
    Type: Application
    Filed: December 23, 2014
    Publication date: June 2, 2016
    Inventors: Lixin TANG, Yang YANG, Shengnan ZHAO
  • Publication number: 20160125336
    Abstract: Slab matching method for multiple hot rolling lines comprises grouping the slabs and orders to obtain slab-order groups; based on a criterion of slab-order specification matching, determining a matching condition between the slab and the order within each of slab-order groups; quantitatively describing a mis-order slab matching problem; matching the mis-order slabs to the orders; quantitatively describing a slab re-matching problem; adjusting the matching relationships of all the slabs and the orders to form a final scheme of slab matching to be distributed to the multiple hot rolling lines to execute, and the slab matching method is completed. The present invention improves the utilization of the mis-order slabs while reducing the waste of energy caused by repeated steelmaking, reducing the consumption of the material and lowers the amount of left material and stored material and saves production cost and storage cost for the plant.
    Type: Application
    Filed: December 23, 2014
    Publication date: May 5, 2016
    Inventors: Lixin TANG, Ying MENG
  • Publication number: 20150332194
    Abstract: A method for assigning surplus slabs in slab yards to orders includes loading slab pre-yards of a plurality of production lines with surplus slabs, describing the assignment of the surplus slabs to the orders with a mathematical model, grouping order data and slab data based on steel grades, obtaining an assignment scheme for the surplus slabs and the orders in each group with a mixed scatter search algorithm, and assigning the surplus slabs to the orders using the assignment scheme. If a surplus slab is in a pre-yard of a production line associated with an order the surplus slab is assigned to, the slab is moved using a crane to the production line. Otherwise, the slab is moved to the pre-yard associated with the production line, and then moved using a crane to the production line. The slab is then heated and rolled by the production line.
    Type: Application
    Filed: July 27, 2015
    Publication date: November 19, 2015
    Inventors: Lixin TANG, Ying MENG
  • Patent number: 9181626
    Abstract: A coil scheduling system and a method for electrogalvanizing line in steel industry are disclosed. In addition to considering the minimum changeover of physical parameters such as post-processing mode, width, thickness between every two adjacent steel coils, the method of the present invention further considers the influence of selecting coils on the production system stability due to the changeover of post-processing mode, width and thickness, and, thereby less adjusting the production equipment. Thus, the coils are smoothly produced, and more reasonable production process is obtained. The result of comparing the coil production schedule controlled by coil scheduling system for electrogalvanizing line in steel industry of the present invention with that of the production schedule determined manually shows that the number of changeover is reduced by 31.51%, and the adjustment of the production equipment is effectively reduced. Thus, the product quality is improved, and the enterprise benefit is increased.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: November 10, 2015
    Assignee: NORTHEASTERN UNIVERSITY
    Inventors: Lixin Tang, Yang Yang
  • Patent number: 8942961
    Abstract: A re-matching method of slab-order for improving slab utilization in iron and steel plants, comprising the steps of Step 1: formulating a mathematical model according to information of slabs and orders, so as to quantitatively describe the optimization problem of slab-order matching; Step 2: dividing the slabs and orders into groups; Step 3: generating a new slab-order matching relationship for each group of slabs and orders by using a multiple neighborhoods based tabu search algorithm on the basis of the formulated mathematical model, tries to re-optimize the matching relationship with consideration of the original slab-order matching relationship and the load balance of all equipment units, so as to improve the slab-order matching relationship, decrease the slab cutting loss, reduce the redundant slab weight of each order, and improve the integrity of an order, thus improving slab utilization, ensuring to deliver an urgent order on time, and improving the customer satisfaction.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: January 27, 2015
    Assignee: Northeastern University
    Inventors: Lixin Tang, Ying Meng
  • Patent number: 8871012
    Abstract: A packed column includes a regular packing (8) and a liquid distribution plate (5). The regular packing (8) is constructed by combining two or more hollow columns, and the hollow columns each have a cross section of circular shape, hexagonal shape or other shapes. The liquid distribution plate (5) has small holes under which liquid guide tubes (4) are connected. The liquid guide tubes (4) lead to all hollow columns of the packing (8). The liquid distribution plate (5) is horizontally installed above the regular packing (8) in a column body (2). Each gas guide plate (11) is made by rotating and twisting a rectangular plate and has several protrusions (12) on its side. The gas guide plates (11) are installed in the hollow columns of the regular packing (8) with the height slightly smaller than that of the hollow columns. A gas outlet (3) is located between the regular packing (8) and the liquid distribution plate (5).
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: October 28, 2014
    Assignee: Nanjing College of Chemical Technology
    Inventors: Jinlin Ji, Lixin Tang
  • Publication number: 20140195034
    Abstract: A coil scheduling system and a method for electrogalvanizing line in steel industry are disclosed. In addition to considering the minimum changeover of physical parameters such as post-processing mode, width, thickness between every two adjacent steel coils, the method of the present invention further considers the influence of selecting coils on the production system stability due to the changeover of post-processing mode, width and thickness, and, thereby less adjusting the production equipment. Thus, the coils are smoothly produced, and more reasonable production process is obtained. The result of comparing the coil production schedule controlled by coil scheduling system for electrogalvanizing line in steel industry of the present invention with that of the production schedule determined manually shows that the number of changeover is reduced by 31.51%, and the adjustment of the production equipment is effectively reduced. Thus, the product quality is improved, and the enterprise benefit is increased.
    Type: Application
    Filed: April 27, 2012
    Publication date: July 10, 2014
    Applicant: Northeastern University
    Inventors: Lixin Tang, Yang Yang
  • Publication number: 20130268249
    Abstract: A re-matching method of slab-order for improving slab utilization in iron and steel plants, comprising the steps of Step 1: formulating a mathematical model according to information of slabs and orders, so as to quantitatively describe the optimization problem of slab-order matching; Step 2: dividing the slabs and orders into groups; Step 3: generating a new slab-order matching relationship for each group of slabs and orders by using a multiple neighborhoods based tabu search algorithm on the basis of the formulated mathematical model, tries to re-optimize the matching relationship with consideration of the original slab-order matching relationship and the load balance of all equipment units, so as to improve the slab-order matching relationship, decrease the slab cutting loss, reduce the redundant slab weight of each order, and improve the integrity of an order, thus improving slab utilization, ensuring to deliver an urgent order on time, and improving the customer satisfaction.
    Type: Application
    Filed: April 5, 2013
    Publication date: October 10, 2013
    Applicant: NORTHEASTERN UNIVERSITY
    Inventors: Lixin TANG, Ying MENG
  • Publication number: 20130246107
    Abstract: The present invention provides a method and device for assigning surplus slabs in the slab yard to orders before hot rolling process, the method comprises steps of: S100: quantitatively describing assignment of surplus slabs in the slab yard to orders with a mathematical model; S200: setting mathematical model parameters in step S100; S300: grouping order data and slab data according to steel grades; S400: obtaining an assignment scheme for surplus slabs and orders in each group with the mixed scatter search algorithm; S500: assigning said surplus slabs in the slab yard to orders before hot rolling process according to said assignment scheme. In the present invention, many factors are considered in a comprehensive way from a viewpoint of global optimization, and hence realizing effective and reasonable matching of surplus inventory in the slab yard before hot rolling process.
    Type: Application
    Filed: November 16, 2012
    Publication date: September 19, 2013
    Applicant: NORTHEASTERN UNIVERSITY
    Inventors: Lixin TANG, Ying MENG
  • Publication number: 20120067147
    Abstract: A bevel gearing device for stirring rack of a tinting machine, including a gear bracket fixedly mounted on the stirring rack; a horizontal drive shaft rotationally mounted on the gear bracket; a first bevel gear fixedly mounted on the horizontal drive shaft adjacent to a side of gear bracket; a vertical rotational shaft with a second bevel gear fixedly mounted on its upper end and a stirring paddle mounted on its lower end, said stirring paddle is placed in a paint bucket; wherein an open guide slot is provided at the bottom of the gear bracket, the guide slot includes a first segment extending perpendicular to the horizontal drive shaft and a second segment extending towards the first bevel gear, an angle between the first and second segment is 180°???160°.
    Type: Application
    Filed: September 16, 2011
    Publication date: March 22, 2012
    Applicant: Ruhua SHEN
    Inventors: Song HUANG, Shuangfeng Tang, Zhicheng Liu, Lixin Tang