Patents by Inventor Jian an Wang

Jian an Wang 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).

  • IRON-BASED NANOPARTICLES AND GRAINS
    Publication number: 20220080500
    Abstract: Example nanoparticles may include an iron-based core, and a shell. The shell may include a non-magnetic, anti-ferromagnetic, or ferrimagnetic material. Example alloy compositions may include an iron-based grain, and a grain boundary. The grain boundary may include a non-magnetic, anti-ferromagnetic, or ferrimagnetic material. Example techniques for forming iron-based core-shell nanoparticles may include depositing a shell on an iron-based core. The depositing may include immersing the iron-based core in a salt composition for a predetermined period of time. The depositing may include milling the iron-based core with a salt composition for a predetermined period of time. Example techniques for treating a composition comprising core-shell nanoparticles may include nitriding the composition.
    Type: Application
    Filed: September 30, 2021
    Publication date: March 17, 2022
    Inventors: Jian-Ping WANG, Bin MA, Jinming LIU, Yiming WU, YanFeng JIANG
  • Methods and compositions for detecting bacterial contamination
    Patent number: 11274351
    Abstract: Compositions, reactions mixtures, kits, and systems for detecting bacterial contamination are provided, as well as methods of using the same.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: March 15, 2022
    Assignee: DCH MOLECULAR DIAGNOSTICS, INC.
    Inventors: James Jian Quan Wang, Xiangmin Cui, Wayne Jer Hsieh, HiuNam Chan
  • Fingerprint sensing apparatus and fingerprint identification method
    Patent number: 11270092
    Abstract: A fingerprint sensing apparatus and a fingerprint identification method are provided. An original fingerprint image is obtained by the fingerprint sensor. An image edge block located at an edge of the original fingerprint image is selected. The image edge block is input into a neural network model to generate a predicted extension block. An extended fingerprint image is generated through merging the original fingerprint image with the predicted extension block. A fingerprint application is executed according to the extended fingerprint image.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: March 8, 2022
    Inventor: Jian-Hua Wang
  • Long-term reference for error recovery in video conferencing system
    Patent number: 11265583
    Abstract: Utilizing two LTR frames for improved error recovery. By using two LTR frames, much better performance is achieved in terms of error recovery as the likelihood of the decoder having one of the two LTR frames is very high. When the decoder determines a frame is lost, the decoder provides a fast update request (FUR). The FUR includes a listing of the LTR frames present at the decoder. With this indication of the LTR frames present at the decoder, the encoder utilizes one of the LTR frames, preferably the most recent, to use as a reference to send the next frame as a P frame. The P frame is sent with an indication of the LTR frame used as reference. The use of two LTR frames and the feedback of LTR frames present at the decoder allows the minimization of the use of I frames for error recovery.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: March 1, 2022
    Assignee: PLANTRONICS INC.
    Inventors: Jian David Wang, John Paul Spearman, Stephen C. Botzko
  • IRON NITRIDE MAGNETIC MATERIAL INCLUDING COATED NANOPARTICLES
    Publication number: 20220051835
    Abstract: The disclosure describes techniques for forming nanoparticles including Fe16N2 phase. In some examples, the nanoparticles may be formed by first forming nanoparticles including iron, nitrogen, and at least one of carbon or boron. The carbon or boron may be incorporated into the nanoparticles such that the iron, nitrogen, and at least one of carbon or boron are mixed. Alternatively, the at least one of carbon or boron may be coated on a surface of a nanoparticle including iron and nitrogen. The nanoparticle including iron, nitrogen, and at least one of carbon or boron then may be annealed to form at least one phase domain including at least one of Fe16N2, Fe16(NB)2, Fe16(NC)2, or Fe16(NCB)2.
    Type: Application
    Filed: October 28, 2021
    Publication date: February 17, 2022
    Inventors: Jian-Ping Wang, Yanfeng Jiang, Craig A. Bridges, Michael P. Brady, Orlando Rios, Roberta A. Meisner, Lawrence F. Allard, JR., Edgar Lara-Curzio, Shihai He
  • CROSS-SENSOR OBJECT-SPACE CORRESPONDENCE ANALYSIS METHOD AND SYSTEM USING SAME
    Publication number: 20220044425
    Abstract: A cross-sensor object-space correspondence analysis method for detecting at least one object in a space by using cooperation of a plurality of image sensing devices, the method including: the image sensing devices sending raw data or grid code data of multiple frames of sensed images to a main information processing device to determine a corresponding projection point or a moving track of each of the at least one object on a reference plane corresponding to the space, where each of the image sensing devices has an image plane, and the raw data and each of the grid code data all correspond to a time record.
    Type: Application
    Filed: December 24, 2020
    Publication date: February 10, 2022
    Inventors: Kung-Han CHEN, Peng-Yan SIE, Jian-Kai WANG, Yun-Tao CHEN
  • CROSS-SENSOR OBJECT-ATTRIBUTE ANALYSIS METHOD AND SYSTEM
    Publication number: 20220044426
    Abstract: A cross-sensor object-attribute analysis method for detecting at least one object in a space by using cooperation of a plurality of image sensing devices, the method including: the image sensing devices sending raw data or attribute vector data of sensed multiple images to a main information processing device, where the raw data and attribute vector data all correspond to a time record; and the main information processing device generating one or more of the attribute vectors according to the raw data of each of the images and using each of the one or more of the attribute vectors to correspond to one of the at least one object, or the main information processing device directly using the attribute vector data to correspond to the at least one object.
    Type: Application
    Filed: December 24, 2020
    Publication date: February 10, 2022
    Inventors: Kung-Han CHEN, Peng-Yan SIE, Jian-Kai WANG, Yun-Tao CHEN
  • ANIMATION EFFECT REPRODUCTION
    Publication number: 20220044464
    Abstract: According to an embodiment, a source object presented in a source video is identified. Attribute information of the source object in respective frames of a sequence of source frames in the source video is identified. The attribute information represents an animation effect associated with the source object across the sequence of source frames. The attribute information is provided for use in reproducing the animation effect in a target video.
    Type: Application
    Filed: August 7, 2020
    Publication date: February 10, 2022
    Inventors: JIAN JUN WANG, Ting Chen, Shi Hui Gui, Li Yi Zhou, Jing Xia, Yidan Lei
  • SPACE-BASED CROSS-SENSOR OBJECT POSITIONING AND IDENTIFICATION METHOD AND SYSTEM
    Publication number: 20220044079
    Abstract: A space-based cross-sensor object positioning and identification method for detecting at least one object in a space, including: periodically performing an object bounding box defining process on raw data of an image sensed by each of a plurality of image sensing devices to generate at least one bounding box for at least one aforementioned object, and performing a first inference process and a second inference process on each aforementioned bounding box to generate a grid code and an attribute vector respectively; and performing a third inference process on plural combined data sets of the grid code and the attribute vector deduced from the images sensed by the image sensing devices to map at least one aforementioned combined data set attributed to a same identity to a local area on a reference plane of the space.
    Type: Application
    Filed: January 4, 2021
    Publication date: February 10, 2022
    Inventors: Kung-Han CHEN, Peng-Yan SIE, Jian-Kai WANG, Yun-Tao CHEN
  • Forming iron nitride hard magnetic materials using chemical vapor deposition or liquid phase epitaxy
    Patent number: 11214862
    Abstract: The disclosure describes techniques for forming hard magnetic materials including ??-Fe16N2 using chemical vapor deposition or liquid phase epitaxy and hard materials formed according to these techniques. A method comprises heating an iron source to form a vapor comprising an iron-containing compound; depositing iron from the vapor comprising the iron-containing compound and nitrogen from a vapor comprising a nitrogen-containing compound on a substrate to form a layer comprising iron and nitrogen; and annealing the layer comprising iron and nitrogen to form at least some crystals comprising ??-Fe16N2.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: January 4, 2022
    Assignee: REGENTS OF THE UNIVERSITY OF MINNESOTA
    Inventors: Jian-Ping Wang, YanFeng Jiang
  • Preservation of strain in iron nitride magnet
    Patent number: 11217370
    Abstract: A permanent magnet may include a Fe16N2 phase in a strained state. In some examples, strain may be preserved within the permanent magnet by a technique that includes etching an iron nitride-containing workpiece including Fe16N2 to introduce texture, straining the workpiece, and annealing the workpiece. In some examples, strain may be preserved within the permanent magnet by a technique that includes applying at a first temperature a layer of material to an iron nitride-containing workpiece including Fe16N2, and bringing the layer of material and the iron nitride-containing workpiece to a second temperature, where the material has a different coefficient of thermal expansion than the iron nitride-containing workpiece. A permanent magnet including an Fe16N2 phase with preserved strain also is disclosed.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: January 4, 2022
    Assignee: REGENTS OF THE UNIVERSITY OF MINNESOTA
    Inventors: Jian-Ping Wang, YanFeng Jiang
  • Iron nitride permanent magnet and technique for forming iron nitride permanent magnet
    Patent number: 11217371
    Abstract: A bulk permanent magnetic material may include between about 5 volume percent and about 40 volume percent Fe16N2 phase domains, a plurality of nonmagnetic atoms or molecules forming domain wall pinning sites, and a balance soft magnetic material, wherein at least some of the soft magnetic material is magnetically coupled to the Fe16N2 phase domains via exchange spring coupling. In some examples, a bulk permanent magnetic material may be formed by implanting N+ ions in an iron workpiece using ion implantation to form an iron nitride workpiece, pre-annealing the iron nitride workpiece to attach the iron nitride workpiece to a substrate, and post-annealing the iron nitride workpiece to form Fe16N2 phase domains within the iron nitride workpiece.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: January 4, 2022
    Assignee: REGENTS OF THE UNIVERSITY OF MINNESOTA
    Inventors: Jian-Ping Wang, Yanfeng Jiang
  • Iron nitride magnetic material including coated nanoparticles
    Patent number: 11195644
    Abstract: The disclosure describes techniques for forming nanoparticles including Fe16N2 phase. In some examples, the nanoparticles may be formed by first forming nanoparticles including iron, nitrogen, and at least one of carbon or boron. The carbon or boron may be incorporated into the nanoparticles such that the iron, nitrogen, and at least one of carbon or boron are mixed. Alternatively, the at least one of carbon or boron may be coated on a surface of a nanoparticle including iron and nitrogen. The nano particle including iron, nitrogen, and at least one of carbon or boron then may be annealed to form at least one phase domain including at least one of Fe16N2, Fe16(NB)2, Fe16(NC)2, or Fe16(NCB)2.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: December 7, 2021
    Assignees: REGENTS OF THE UNIVERSITY OF MINNESOTA, UT-BATTELLE, LLC, UNIVERSITY OF TENNESSEE RESEARCH FOUNDATION
    Inventors: Jian-Ping Wang, Yanfeng Jiang, Craig A. Bridges, Michael Brady, Orlando Rios, Roberta A. Meisner, Lawrence F. Allard, Edgar Lara-Curzio, Shihai He
  • Coating compositions and method for jewelries
    Patent number: 11185139
    Abstract: A flexible method to provide a variety of value-added coatings to a piece of jewelry or a group of jewelries is disclosed. Atomic Layer Deposition (ALD) and Molecular Layer Deposition (MLD) technique is implemented to deposit a layer of conformal coating on intended jewelry surfaces, including both exterior and interior surfaces, to enhance a vast majority of process-driven or end of use driven properties. The coating compositions include dielectrics material, metals, organic materials or organic-inorganic hybrid materials. The method steps of forming a layer of coating are straightforward and can be tailed to different purposes.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: November 30, 2021
    Inventors: Oujie Kevin Tong, Yifei Jenny Jin, Lisa Ruosha Wang, Jian Jim Wang
  • Electric field switchable magnetic devices
    Patent number: 11183227
    Abstract: A magnetic device may include a layer stack. The layer stack may include a first ferromagnetic layer; a spacer layer on the first ferromagnetic layer; a second ferromagnetic layer on the spacer layer; and a dielectric barrier layer on the second ferromagnetic layer. In some examples, the layer stack may also include an additional ferromagnetic layer and an additional spacer layer. The magnetic device also may include a voltage source configured to apply a bias voltage across the layer stack to cause switching of a magnetic orientation of the second ferromagnetic layer without application of an external magnetic field.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: November 23, 2021
    Assignee: Regents of the University of Minnesota
    Inventors: Jian-Ping Wang, Delin Zhang, Protyush Sahu
  • Computational random access memory (CRAM) based on spin-orbit torque devices
    Patent number: 11176979
    Abstract: A logic-memory cell includes a spin-orbit torque device having first, second and third terminals configured such that current between the second and third terminals is capable of changing a resistance between the first and second terminals. In the cell, a first transistor is connected between a logic connection line and the first terminal of the spin-orbit torque device and a second transistor is connected between the logic connection line and the third terminal of the spin-orbit torque device.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: November 16, 2021
    Assignee: Regents of the University of Minnesota
    Inventors: Jian-Ping Wang, Sachin S. Sapatnekar, Ulya R. Karpuzcu, Zhengyang Zhao, Masoud Zabihi, Michael Salonik Resch, Zamshed I. Chowdhury, Thomas Peterson
  • FINGERPRINT SENSING APPARATUS AND FINGERPRINT IDENTIFICATION METHOD
    Publication number: 20210350108
    Abstract: A fingerprint sensing apparatus and a fingerprint identification method are provided. An original fingerprint image is obtained by the fingerprint sensor. An image edge block located at an edge of the original fingerprint image is selected. The image edge block is input into a neural network model to generate a predicted extension block. An extended fingerprint image is generated through merging the original fingerprint image with the predicted extension block. A fingerprint application is executed according to the extended fingerprint image.
    Type: Application
    Filed: April 1, 2021
    Publication date: November 11, 2021
    Inventor: Jian-Hua Wang
  • ELECTRIC FIELD SWITCHABLE MAGNETIC DEVICES
    Publication number: 20210343321
    Abstract: A magnetic device may include a layer stack. The layer stack may include a first ferromagnetic layer; a spacer layer on the first ferromagnetic layer; a second ferromagnetic layer on the spacer layer; and a dielectric barrier layer on the second ferromagnetic layer. In some examples, the layer stack may also include an additional ferromagnetic layer and an additional spacer layer. The magnetic device also may include a voltage source configured to apply a bias voltage across the layer stack to cause switching of a magnetic orientation of the second ferromagnetic layer without application of an external magnetic field.
    Type: Application
    Filed: April 29, 2020
    Publication date: November 4, 2021
    Inventors: Jian-Ping Wang, Delin Zhang, Protyush Sahu
  • Iron-based nanoparticles and grains
    Patent number: 11161175
    Abstract: Example nanoparticles may include an iron-based core, and a shell. The shell may include a non-magnetic, anti-ferromagnetic, or ferrimagnetic material. Example alloy compositions may include an iron-based grain, and a grain boundary. The grain boundary may include a non-magnetic, anti-ferromagnetic, or ferrimagnetic material. Example techniques for forming iron-based core-shell nanoparticles may include depositing a shell on an iron-based core. The depositing may include immersing the iron-based core in a salt composition for a predetermined period of time. The depositing may include milling the iron-based core with a salt composition for a predetermined period of time. Example techniques for treating a composition comprising core-shell nanoparticles may include nitriding the composition.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: November 2, 2021
    Assignee: REGENTS OF THE UNIVERSITY OF MINNESOTA
    Inventors: Jian-Ping Wang, Bin Ma, Jinming Liu, Yiming Wu, YanFeng Jiang
  • Storage unit radio
    Patent number: D936030
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: November 16, 2021
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Timothy Tin Pak Lee, George Siu Kwong Yu, Joseph R. McIntyre, Sullivan Dee, Yong Dong Huang, Jian Jun Wang, Thompson K. C. Cheung, Xiao Ying Tao