Patents by Inventor Xiangwei Zeng

Xiangwei Zeng 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: 10817409
    Abstract: A system, method and computer-readable medium for testing a service-based application identifies a set of use cases for the service-based application. Each use case in the set is mapped to a test case to generate a first set of test cases. Each of the test cases is refined to generate an updated set of test cases and the updated set of test cases is executed.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: October 27, 2020
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Xiangwei Zeng, Teh-Hsin Wu, Zhenzhen Wang
  • Patent number: 10523542
    Abstract: A first integrated cloud is identified in a self-driven testing platform. The interoperability of the first integrated cloud with a plurality of other integrated clouds is tested. A service chain to verify a service chain path connectivity between the first integrated cloud and the plurality of other integrated clouds is created. Performance of the service chain is determined as is whether the service chain performance meets a benchmark requirement. If the service chain performance does not meet the benchmark requirement, service chain inventory data and adjacent neighbor connection information is retrieved. Real time network configuration data from the first integrated cloud and the plurality of other integrated clouds is retrieved and any mismatched network configuration data is compared and corrected.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: December 31, 2019
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Zhenzhen Wang, Teh-Hsin Wu, Xiangwei Zeng
  • Publication number: 20190155720
    Abstract: A system, method and computer-readable medium for testing a service-based application identifies a set of use cases for the service-based application. Each use case in the set is mapped to a test case to generate a first set of test cases. Each of the test cases is refined to generate an updated set of test cases and the updated set of test cases is executed.
    Type: Application
    Filed: January 4, 2019
    Publication date: May 23, 2019
    Inventors: Xiangwei Zeng, Teh-Hsin Wu, Zhenzhen Wang
  • Patent number: 10204034
    Abstract: A system, method and computer-readable medium for testing a service-based application identifies a set of use cases for the service-based application. Each use case in the set is mapped to a test case to generate a first set of test cases. Each of the test cases is refined to generate an updated set of test cases and the updated set of test cases is executed.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: February 12, 2019
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Xiangwei Zeng, Teh-Hsin Wu, Zhenzhen Wang
  • Publication number: 20180293156
    Abstract: A system, method and computer-readable medium for testing a service-based application identifies a set of use cases for the service-based application. Each use case in the set is mapped to a test case to generate a first set of test cases. Each of the test cases is refined to generate an updated set of test cases and the updated set of test cases is executed.
    Type: Application
    Filed: April 6, 2017
    Publication date: October 11, 2018
    Inventors: Xiangwei Zeng, Teh-Hsin Wu, Zhenzhen Wang
  • Publication number: 20180270130
    Abstract: A first integrated cloud is identified in a self-driven testing platform. The interoperability of the first integrated cloud with a plurality of other integrated clouds is tested. A service chain to verify a service chain path connectivity between the first integrated cloud and the plurality of other integrated clouds is created. Performance of the service chain is determined as is whether the service chain performance meets a benchmark requirement. If the service chain performance does not meet the benchmark requirement, service chain inventory data and adjacent neighbor connection information is retrieved. Real time network configuration data from the first integrated cloud and the plurality of other integrated clouds is retrieved and any mismatched network configuration data is compared and corrected.
    Type: Application
    Filed: March 20, 2017
    Publication date: September 20, 2018
    Inventors: Zhenzhen Wang, Teh-Hsin Wu, Xiangwei Zeng
  • Patent number: 8740176
    Abstract: A driving and adjusting device of a passive shuttle-type shut-off valve is provided. The problems of a big valve body structure size, a non-random angle installment, a single drive mode, low stability and reliability, a high temperature and poisonous material entering into the driving and adjusting device and unadjustable on-off speed and low volume in the prior device are solved. A main body (33) is connected with an upstream pipe (1) and a downstream pipe (3). A pressure port (2) on the upstream pipe (1) is connected with the driving device. A double acting cylinder (34) is provided in a valve sleeve (21). The left and right chambers of the double acting cylinder are connected with the valve clack (24). The driving device is composed of a regulating valve, a directional valve, a check valve, a boost-insulation valve and an accumulator (18). It can select the drive mode and adjust the on-off speed and the flow volume of the valve.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: June 3, 2014
    Inventor: Xiangwei Zeng
  • Publication number: 20130207011
    Abstract: A driving and adjusting device of a passive shuttle-type shut-off valve is provided. The problems of a big valve body structure size, a non-random angle installment, a single drive mode, low stability and reliability, a high temperature and poisonous material entering into the driving and adjusting device and unadjustable on-off speed and low volume in the prior device are solved. A main body (33) is connected with an upstream pipe (1) and a downstream pipe (3). A pressure port (2) on the upstream pipe (1) is connected with the driving device. A double acting cylinder (34) is provided in a valve sleeve (21). The left and right chambers of the double acting cylinder are connected with the valve clack (24). The driving device is composed of a regulating valve, a directional valve, a check valve, a boost-insulation valve and an accumulator (18). It can select the drive mode and adjust the on-off speed and the flow volume of the valve.
    Type: Application
    Filed: April 1, 2011
    Publication date: August 15, 2013
    Applicant: WINJET HIGH-TECH INVESTMENT CO., LTD. (BEIJING)
    Inventor: Xiangwei Zeng
  • Publication number: 20070144340
    Abstract: The present invention relates to an adjustable differential flow shuttle valve control system. The adjustable differential flow shuttle valve control system includes a direction control valve and a flow-rate control valve provided in medium inflow and outflow circuits of a working cylinder. The medium inflow and outflow circuits of the working cylinder (1) are connected with a two-position or three-position four-way valve (2). The medium inflow and outflow circuits of the working cylinder are provided with an adjustable differential flow shuttle valve (3).
    Type: Application
    Filed: December 15, 2006
    Publication date: June 28, 2007
    Inventor: Xiangwei Zeng
  • Patent number: 6895994
    Abstract: A protection device which is capable of cutting off a pipeline when the pipeline leaks due to the rupture of the pipe self-operatedly closes the pipeline using fluid kinetic energy. A control rod converts linear movement of a piston into the opening and closing movement of a main valve core. The piston separates a hydraulic cylinder chamber into a first chamber and a second chamber. A restoring spring in the first chamber restores a control piston to an initial position. A control valve in the second chamber controls discharge of fluid from the second chamber. A flow state-sensing device introduces fluid in the fluid pipe to the second chamber when the fluid pipe ruptures and leaks.
    Type: Grant
    Filed: August 3, 2004
    Date of Patent: May 24, 2005
    Inventor: Xiangwei Zeng
  • Patent number: 6854478
    Abstract: A fluid control valve for a pipeline pig includes a main valve and a mechanism for operating the main valve. The main valve comprises a valve body communicated to a fluid pipe, a main valve core movably disposed in the inner chamber of the valve body, and a main valve stem connected to the main valve core. The operating mechanism includes a hydrocylinder, which comprises a piston disposed in the cylinder, and a piston rod connected to the piston. The piston rod is transmissibly connected with the main valve stem so as to drive the main valve core by the main valve stem. A valve device includes a pilot valve, positioned in the pipeline which communicates the fluid pipe with the hydrocylinder, and an operator for controlling the actuation of the pilot valve so as to enable the piston to move reciprocally by the pressure of fluid in the fluid pipe.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: February 15, 2005
    Inventor: Xiangwei Zeng
  • Publication number: 20050022873
    Abstract: A protection device which is capable of cutting off a pipeline when the pipeline leaks due to the rupture of the pipe, self-operatedly closes the pipeline using fluid kinetic energy. A control rod converts linear movement of a piston into the opening and closing movement of a main valve core. The piston separates a hydraulic cylinder chamber into a first chamber and a second chamber. A restoring spring in the first chamber restores a control piston to an initial position. A control valve in the second chamber controls discharge of fluid from the second chamber. A flow state-sensing device introduces fluid in the fluid pipe to the second chamber when the fluid pipe ruptures and leaks.
    Type: Application
    Filed: August 3, 2004
    Publication date: February 3, 2005
    Inventor: Xiangwei Zeng
  • Publication number: 20040031523
    Abstract: The present invention discloses a protection device which is capable of cutting off the pipeline when the pipeline leaks due to the rupture of the pipe, and is aimed to achieve the object of self-operatedly closing the pipeline using fluid kinetic energy when a pipeline ruptures and leaks. The protection device comprises a main valve (1) and a control device for the main valve. The main valve (1) comprises a valve body (2) communicating with a fluid pipe (3), a main valve core provided in the valve body and a main valve stem (4) connected with the main valve core.
    Type: Application
    Filed: March 4, 2003
    Publication date: February 19, 2004
    Inventor: Xiangwei Zeng