Patents by Inventor Yunhui Zheng

Yunhui Zheng 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: 20190171551
    Abstract: A computer implemented method for testing an application according to usage data includes receiving an application to be tested and a set of usage data corresponding to the application to be tested, wherein the set of usage data corresponds to previously executed code sequences, identifying one or more code sequences of interest corresponding to the received application, wherein the code sequences of interest correspond to codes sequences that are configured to exercise the received application, extracting concrete usages of the code sequence of interest from the received set of usage data, generating one or more test cases for the application according to the extracted usages, and providing the one or more generated test cases. The method may additionally include testing the application according to the one or more generated test cases.
    Type: Application
    Filed: December 1, 2017
    Publication date: June 6, 2019
    Inventors: Jim A. Laredo, Aleksander Slominski, John E. Wittern, Annie T. Ying, Christopher C. Young, Yunhui Zheng
  • Publication number: 20180357154
    Abstract: A method and system of determining whether a specification is an accurate representation of an application program interface (API) is provided. The specification is received electronically over a network. Service calls to be tested are identified based on the specification. A test case is created for each of the identified service calls. A sequence is created for the test cases. A test plan is generated based on the created sequence. The generated test plan is executed. Upon identifying an error in response to the executed test plan, a notification is generated, indicating that the specification is not an accurate representation of the API.
    Type: Application
    Filed: June 12, 2017
    Publication date: December 13, 2018
    Inventors: Julian Timothy Dolby, Jim Alain Laredo, Aleksander Slominski, John Erik Wittern, Annie T. Ying, Christopher Young, Yunhui Zheng
  • Publication number: 20180329705
    Abstract: Techniques for autonomously generating a code usage summary associated with a web application programming interface request are provided. In one example, a computer-implemented method can comprise evaluating, by a system operatively coupled to a processor, data from a data repository, wherein the evaluating is based on a defined machine learning process. Also, the computer-implemented method can comprise generating, by the system, a usage summary of the data, wherein the usage summary is based on a statistic derived from a web application programming interface request, and the web application programming interface request is associated with the data.
    Type: Application
    Filed: December 14, 2017
    Publication date: November 15, 2018
    Inventors: Jim Laredo, Aleksander Slominski, John Erik Wittern, Annie Tsui Tsui Ying, Christopher Charles Young, Yunhui Zheng
  • Publication number: 20180329704
    Abstract: Techniques for autonomously generating a code usage summary associated with a web application programming interface request are provided. In one example, a computer-implemented method can comprise evaluating, by a system operatively coupled to a processor, data from a data repository, wherein the evaluating is based on a defined machine learning process. Also, the computer-implemented method can comprise generating, by the system, a usage summary of the data, wherein the usage summary is based on a statistic derived from a web application programming interface request, and the web application programming interface request is associated with the data.
    Type: Application
    Filed: May 12, 2017
    Publication date: November 15, 2018
    Inventors: Jim Laredo, Aleksander Slominski, John Erik Wittern, Annie Tsui Tsui Ying, Christopher Charles Young, Yunhui Zheng
  • Publication number: 20180121320
    Abstract: A debugging tool and method for statically verifying programs that invoke web-based services through API calls is provided. The tool receives source code that comprises one or more invocation of web APIs for requesting web-based services. The tool also receives a set of web API specifications. The tool extracts a set of request information for each web API invocation in the source code, the set of request information including a usage string of an URL endpoint. The tool verifies whether the set of request information complies with the received web API specifications and reports a result of the verification.
    Type: Application
    Filed: October 31, 2016
    Publication date: May 3, 2018
    Inventors: Julian T. Dolby, Jim A. Laredo, John E. Wittern, Annie T. T. Ying, Yunhui Zheng
  • Patent number: 8144312
    Abstract: A telescope with internal scanner utilizing either a single optical wedge scanner or a dual optical wedge scanner and a controller arranged to control a synchronous rotation of the first and/or second optical wedges, the wedges constructed and arranged to scan light redirected by topological surfaces and/or volumetric scatterers. The telescope with internal scanner further incorporates a first converging optical element that receives the redirected light and transmits the redirected light to the scanner, and a second converging optical element within the light path between the first optical element and the scanner arranged to reduce an area of impact on the scanner of the beam collected by the first optical element.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: March 27, 2012
    Assignee: Sigma Space Corporation
    Inventors: John James Degnan, III, Yunhui Zheng
  • Patent number: 8115925
    Abstract: A polarization switching lidar device, arranged for remote detection and characterization of airborne aggregations of particulates, includes a pulsed laser, a mirror, a polarizing beam splitter, an actively controlled retarder arranged to be controllably alternated between a zero retardation state and a quarter-wave retardation state such that the transmitted portion of the exiting laser light beam is linearly polarized in a predetermined direction when the actively controlled retarder is in the zero retardation state, while being circularly polarized in a predetermined rotational sense when the actively controlled retarder is in the quarter-wave retardation state. A directable telescoping assembly is arranged to collect photons backscattered by the airborne aggregations of particulates and to redirect the collected portion of depolarized backscattered photons onto the polarizing beam splitter.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: February 14, 2012
    Assignee: Sigma Space Corp.
    Inventors: Savyasachee Liptarag Mathur, Yunhui Zheng, Edward Lee Leventhal
  • Publication number: 20120026497
    Abstract: A polarization switching lidar device, arranged for remote detection and characterization of airborne aggregations of particulates, includes a pulsed laser, a mirror, a polarizing beam splitter, an actively controlled retarder arranged to be controllably alternated between a zero retardation state and a quarter-wave retardation state such that the transmitted portion of the exiting laser light beam is linearly polarized in a predetermined direction when the actively controlled retarder is in the zero retardation state, while being circularly polarized in a predetermined rotational sense when the actively controlled retarder is in the quarter-wave retardation state. A directable telescoping assembly is arranged to collect photons backscattered by the airborne aggregations of particulates and to redirect the collected portion of depolarized backscattered photons onto the polarizing beam splitter.
    Type: Application
    Filed: September 21, 2011
    Publication date: February 2, 2012
    Applicant: SIGMA SPACE CORPORATION
    Inventors: Savyasachee Liptarag Mathur, Yunhui Zheng, Edward Lee Leventhal
  • Patent number: 8054464
    Abstract: A polarization switching lidar device is arranged for remote detection and characterization of airborne aggregations of particulates. It includes a pulsed laser, a mirror, a polarizing beam splitter, an actively controlled retarder arranged to be controllably alternated between a zero retardation state and a quarter-wave retardation state such that the transmitted portion of the exiting laser light beam is linearly polarized in a predetermined direction when the actively controlled retarder is in the zero retardation state, while being circularly polarized in a predetermined rotational sense when the actively controlled retarder is in the quarter-wave retardation state. A directable telescoping assembly is arranged to collect photons backscattered by the airborne aggregations of particulates and to redirect the collected portion of depolarized backscattered photons onto the polarizing beam splitter.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: November 8, 2011
    Assignee: Sigma Space Corp.
    Inventors: Savyasachee Liptarag Mathur, Yunhui Zheng, Edward Lee Leventhal
  • Publication number: 20110181881
    Abstract: A polarization switching lidar device is arranged for remote detection and characterization of airborne aggregations of particulates. It includes a pulsed laser, a mirror, a polarizing beam splitter, an actively controlled retarder arranged to be controllably alternated between a zero retardation state and a quarter-wave retardation state such that the transmitted portion of the exiting laser light beam is linearly polarized in a predetermined direction when the actively controlled retarder is in the zero retardation state, while being circularly polarized in a predetermined rotational sense when the actively controlled retarder is in the quarter-wave retardation state. A directable telescoping assembly is arranged to collect photons backscattered by the airborne aggregations of particulates and to redirect the collected portion of depolarized backscattered photons onto the polarizing beam splitter.
    Type: Application
    Filed: January 25, 2010
    Publication date: July 28, 2011
    Applicant: SIGMA SPACE CORPORATION
    Inventors: Savyasachee Liptarag Mathur, Yunhui Zheng, Edward Lee Leventhal
  • Publication number: 20110051121
    Abstract: A telescope with internal scanner utilizing either a single optical wedge scanner or a dual optical wedge scanner and a controller arranged to control a synchronous rotation of the first and/or second optical wedges, the wedges constructed and arranged to scan light redirected by topological surfaces and/or volumetric scatterers. The telescope with internal scanner further incorporates a first converging optical element that receives the redirected light and transmits the redirected light to the scanner, and a second converging optical element within the light path between the first optical element and the scanner arranged to reduce an area of impact on the scanner of the beam collected by the first optical element.
    Type: Application
    Filed: August 25, 2009
    Publication date: March 3, 2011
    Applicant: SIGMA SPACE CORPORATION
    Inventors: John James Degnan, III, Yunhui Zheng