Patents by Inventor Xun Qian

Xun Qian 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: 20240312154
    Abstract: An Tangible User Interface (TUI) authoring system is disclosed that allows end-users to customize edges on daily objects as TUI inputs to control varied digital functions. The TUI application authoring system incorporates an integrated AR-device and an integrated vision-based detection pipeline that can track 3D edges and detect the touch interaction between fingers and edges. Leveraging the spatial-awareness of AR, users can simply select an edge by sliding fingers along it and then make the edge interactive by connecting it to various digital functions. The system is demonstrated using four exemplary use cases including multi-function controllers, smart homes, games, and TUI-based tutorials.
    Type: Application
    Filed: February 22, 2024
    Publication date: September 19, 2024
    Inventors: Karthik Ramani, Fengming He, Xun Qian, Jingyu Shi, Xiyun Hu
  • Publication number: 20240303918
    Abstract: A method can include receiving, via a camera, a first video stream of a face of a user; determining a location of the face of the user based on the first video stream and a facial landmark detection model; receiving, via the camera, a second video stream of the face of the user; generating a depth map based on the second video stream, the location of the face of the user, and a depth prediction model; and generating a representation of the user based on the depth map and the second video stream.
    Type: Application
    Filed: October 11, 2023
    Publication date: September 12, 2024
    Inventors: Ruofei Du, Xun Qian, Yinda Zhang, Alex Olwal
  • Patent number: 12067144
    Abstract: A method includes obtaining, by an application executing on a processor of an electronic device, user data of a user, generating a representation of the user data, applying local differential privacy to the representation of the user data, to generate a transform of the representation of the user data, sending the transform of the representation of the user data, to a service provider via a network and receiving, from the service provider, via the network, service data based on the transform of the user data. The service data includes a user-specific output based on the transform of the user data. The application executes outside of a trusted execution environment (TEE) of the electronic device. The transform of the representation of the user data is generated in the TEE of the electronic device.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: August 20, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jianwei Qian, Xun Chen
  • Publication number: 20240273949
    Abstract: A system and method for authoring and implementing context-aware applications (CAPs) are disclosed. The system and method enables users to record their daily activities and then build and deploy customized CAPs onto augmented reality platforms in which automated actions are performed in response to user-defined human actions. The system and method utilizes an integrated augmented reality platform composed of multiple camera systems, which allows for non-intrusive recording of end-users' activities and context detection while authoring and implementing CAPs. The system and method provides an augmented reality authoring interface for browsing, selecting, and editing recorded activities, and creating flexible CAPs through spatial interaction and visual programming.
    Type: Application
    Filed: April 15, 2024
    Publication date: August 15, 2024
    Inventors: Karthik Ramani, Tianyi Wang, Xun Qian
  • Publication number: 20240240485
    Abstract: Provided is a beam-column joint of a prefabricated self-centering RC (Reinforced Concrete) frame based on an SMA (Shape Memory Alloy) material, including an RC precast column, an RC precast beam, and self-centering energy dissipation dampers arranged, and a friction energy dissipation damper. The self-centering energy dissipation damper includes an SMA kernel, an upper restraint cover plate, a lower restraint cover plate, a column-end connection reinforcing plate and a beam-end connection reinforcing plate, and a set energy dissipation gap is reserved between the SMA kernel and the upper restraint cover plate. The friction energy dissipation damper includes an in-column embedded connecting plate and a beam-end embedded connecting plate.
    Type: Application
    Filed: August 7, 2023
    Publication date: July 18, 2024
    Applicant: Zhengzhou University
    Inventors: Hui Qian, Yifei Shi, Zong'ao Li, Xiangyu Wang, Enfeng Deng, Jundong Gao, Xun Zhang, Yingyang Liu, Xiaoyan Yang, Yuan Fang, Dakuo Feng, Qunshan Su, Zhongshan Zhang
  • Patent number: 12032122
    Abstract: The present application provides a long-wave infrared anti-reflection protective film on a ZnS substrate and a preparation method thereof, wherein the ZnS substrate long-wave infrared anti-reflection protective film comprises a ZnS film layer and a Y2O3 film layer sequentially arranged on the ZnS substrate. The ZnS substrate has a thickness of 2-15 mm, and the ZnS film layer has a thickness of 80-120 nm, the Y2O3 film layer has a thickness of 1000-1300 nm, and a film structure of Y2O3 layer gradually changes from an inside to a surface. The method for preparing a long-wave infrared anti-reflection protective film on a ZnS substrate comprises the following steps: 1) performing a polishing treatment and surface treatment on the ZnS substrate; 2) depositing a ZnS film layer on the ZnS substrate; 3) depositing a Y2O3 film layer on the ZnS film.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: July 9, 2024
    Assignees: SINOMA SYNTHETIC CRYSTALS CO., LTD., BEIJING SINOMA SYNTHETIC CRYSTALS CO., LTD.
    Inventors: Xu Zhang, Xun Qian, Peng Zi, Shen Dang
  • Patent number: 11989977
    Abstract: A system and method for authoring and implementing context-aware applications (CAPs) are disclosed. The system and method enables users to record their daily activities and then build and deploy customized CAPs onto augmented reality platforms in which automated actions are performed in response to user-defined human actions. The system and method utilizes an integrated augmented reality platform composed of multiple camera systems, which allows for non-intrusive recording of end-users' activities and context detection while authoring and implementing CAPs. The system and method provides an augmented reality authoring interface for browsing, selecting, and editing recorded activities, and creating flexible CAPs through spatial interaction and visual programming.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: May 21, 2024
    Assignee: Purdue Research Foundation
    Inventors: Karthik Ramani, Tianyi Wang, Xun Qian
  • Publication number: 20240118786
    Abstract: A method and system for hand-object interaction dataset collection is described herein, which is configured to support user-specified collection of hand-object interaction datasets. Such hand-object interaction datasets are useful, for example, for training 3D hand and object pose estimation model. The method and system adopt a sequential process of first recording hand and object pose labels by manipulating a virtual bounding box, rather than a physical object. Naturally, hand-object occlusions do not occur during the manipulation of the virtual bounding box, so these labels are provided with high accuracy. Subsequently, the images are separately captured of the hand-object interaction with the physical object. These images are paired with the previously recorded hand and object pose labels.
    Type: Application
    Filed: October 3, 2023
    Publication date: April 11, 2024
    Inventors: Karthik Ramani, Xun Qian, Tianyi Wang, Fengming He
  • Publication number: 20240078004
    Abstract: The present disclosure pertains to techniques for reducing inaccuracies in context aware policies (CAP) with real-time feedforward validation in extended reality environments. In a particular aspect, a extended reality system is configured to author, by a user using the head-mounted device, a rule or policy or context aware policy (CAP) including one or more target actions and triggering context instances, capture, using one or more sensors, context history records for the user, render, by the head-mounted device, one or more validation scenes based on the rule or policy or CAP and the context history records, validate, by the user using the head-mounted device, the one or more validation scenes within an extended reality environment, and update, by the user using the head-mounted device, the rule or policy or CAP based on the validation.
    Type: Application
    Filed: September 7, 2023
    Publication date: March 7, 2024
    Applicant: Meta Platforms Technologies, LLC
    Inventors: Xun Qian, Kashyap Todi, Tanya Renee Jonker, Tianyi Wang, Anna Camilla Martinez, Felix Izarra, Ting Zhang, Ruta Parimal Desai, Yan Xu, Frances Cin-Yee Lai, Tianyi Yang
  • Patent number: 11746438
    Abstract: The present invention provides an optical ZnS material and a preparation method thereof, wherein the preparation method comprises: charging zinc and sulfur into a first crucible and a feeding device of a chemical vapor deposition furnace, respectively; heating the first crucible, the second crucible and a deposition chamber, and charging sulfur into the second crucible through the feeding device; introducing an inert carrier gas into the first crucible, and introducing an inert carrier gas and hydrogen into the second crucible, flowing the carrier gas containing zinc vapor and sulfur vapor respectively into the deposition chamber through pipelines to deposit ZnS, and supplying the second crucible with sulfur regularly and quantitatively through the feeding device during the deposition process to maintain a saturated vapor pressure of sulfur in a range of 0.8 to 1.8 KPa.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: September 5, 2023
    Assignees: Sinoma Synthetic Crystals Co., Ltd., Beijing Sinoma Synthetic Crystals Co., Ltd.
    Inventors: Xun Qian, Cunxin Huang, Hongtao Xiao, Xu Zhang, Kehong Zhang
  • Publication number: 20230038709
    Abstract: An augmented reality (AR) application authoring system is disclosed. The AR application authoring system enables the real-time creation of freehand interactive AR applications with freehand inputs. The AR application authoring system enables intuitive authoring of customized freehand gesture inputs through embodied demonstration while using the surrounding environment as a contextual reference. A visual programming interface is provided with which users can define freehand interactions by matching the freehand gestures with reactions of virtual AR assets. Thus, users can create personalized freehand interactions through simple trigger-action programming logic. Further, with the support of a real-time hand gesture detection algorithm, users can seamlessly test and iterate on the authored AR experience.
    Type: Application
    Filed: July 26, 2022
    Publication date: February 9, 2023
    Inventors: Karthik Ramani, Tianyi Wang, Xun Qian, Fengming He
  • Publication number: 20220187504
    Abstract: The present application provides a long-wave infrared anti-reflection protective film on a ZnS substrate and a preparation method thereof, wherein the ZnS substrate long-wave infrared anti-reflection protective film comprises a ZnS film layer and a Y2O3 film layer sequentially arranged on the ZnS substrate. The ZnS substrate has a thickness of 2-15 mm, and the ZnS film layer has a thickness of 80-120 nm, the Y2O3 film layer has a thickness of 1000-1300 nm, and a film structure of Y2O3 layer gradually changes from an inside to a surface. The method for preparing a long-wave infrared anti-reflection protective film on a ZnS substrate comprises the following steps: 1) performing a polishing treatment and surface treatment on the ZnS substrate; 2) depositing a ZnS film layer on the ZnS substrate; 3) depositing a Y2O3 film layer on the ZnS film.
    Type: Application
    Filed: December 10, 2021
    Publication date: June 16, 2022
    Inventors: Xu Zhang, Xun Qian, Peng Zi, Shen Dang
  • Publication number: 20220186400
    Abstract: The present invention provides an optical ZnS material and a preparation method thereof, wherein the preparation method comprises: charging zinc and sulfur into a first crucible and a feeding device of a chemical vapor deposition furnace, respectively; heating the first crucible, the second crucible and a deposition chamber, and charging sulfur into the second crucible through the feeding device; introducing an inert carrier gas into the first crucible, and introducing an inert carrier gas and hydrogen into the second crucible, flowing the carrier gas containing zinc vapor and sulfur vapor respectively into the deposition chamber through pipelines to deposit ZnS, and supplying the second crucible with sulfur regularly and quantitatively through the feeding device during the deposition process to maintain a saturated vapor pressure of sulfur in a range of 0.8 to 1.8 KPa.
    Type: Application
    Filed: December 10, 2021
    Publication date: June 16, 2022
    Inventors: Xun Qian, Cunxin Huang, Hongtao Xiao, Xu Zhang, Kehong Zhang
  • Publication number: 20220139254
    Abstract: A machine task tutorial system is disclosed that utilizes augmented reality to enable an expert user to record a tutorial for a machine task that can be learned by different trainee users in an adaptive manner. The machine task tutorial system advantageously utilizes an adaptation model that focuses on spatial and bodily visual presence for machine task tutoring. The machine task tutorial system advantageously enables adaptive tutoring in the recorded-tutorial environment based on machine state and user activity recognition. The machine task tutorial system advantageously utilizes AR to provide tutorial recording, adaptive visualization, and state recognition. In this way, the machine task tutorial system supports more effective apprenticeship and training for machine tasks in workshops or factories.
    Type: Application
    Filed: November 3, 2021
    Publication date: May 5, 2022
    Inventors: Karthik Ramani, Gaoping Huang, Alexander J. Quinn, Yuanzhi Cao, Tianyi Wang, Xun Qian
  • Publication number: 20210406528
    Abstract: A system and method for authoring and implementing context-aware applications (CAPs) are disclosed. The system and method enables users to record their daily activities and then build and deploy customized CAPs onto augmented reality platforms in which automated actions are performed in response to user-defined human actions. The system and method utilizes an integrated augmented reality platform composed of multiple camera systems, which allows for non-intrusive recording of end-users' activities and context detection while authoring and implementing CAPs. The system and method provides an augmented reality authoring interface for browsing, selecting, and editing recorded activities, and creating flexible CAPs through spatial interaction and visual programming.
    Type: Application
    Filed: June 30, 2021
    Publication date: December 30, 2021
    Inventors: Karthik Ramani, Tianyi Wang, Xun Qian
  • Patent number: 8173596
    Abstract: A method for treating a disorder characterized by salt retention, fluid retention, and combinations thereof. A method for determining the presence of or the progression of a disorder characterized by salt retention, fluid retention, salt loss, fluid loss, and combinations thereof. An immunoassay kit for detecting a level of prouroguanylin in a sample.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: May 8, 2012
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Michael F. Goy, Nicholas G. Moss, Xun Qian
  • Publication number: 20080221022
    Abstract: A method for treating a disorder characterized by salt retention, fluid retention, and combinations thereof. A method for determining the presence of or the progression of a disorder characterized by salt retention, fluid retention, salt loss, fluid loss, and combinations thereof. An immunoassay kit for detecting a level of prouroguanylin in a sample.
    Type: Application
    Filed: May 16, 2005
    Publication date: September 11, 2008
    Inventors: Michael F. Goy, Nicholas G. Moss, Xun Qian