Patents by Inventor Quan Zhang

Quan Zhang 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: 20240081735
    Abstract: A system and method for measuring and monitoring blood pressure is provided. The system includes a wearable device and a tonometry device coupled to the wearable device. The Tonometry device is configured to compress a superficial temporal artery (STA) of a user. A sensor pad is attached to the wearable device adjacent the tonometry device. A blood pressure sensor is integrated within the sensor pad for continuous, unobtrusive blood pressure monitoring.
    Type: Application
    Filed: November 8, 2023
    Publication date: March 14, 2024
    Inventors: Quan Zhang, Yuanting Zhang
  • Publication number: 20240087598
    Abstract: A method involves determining a threshold error rate that will result on data stored on a magnetic disk surface of a disk drive being unrecoverable. The method also involves determining a seek velocity that will overwrite sufficient portions of the data such the data will exhibit at least the threshold error rate. The disk drive performs at least one traversal of the magnetic disk surface with a head of the disk drive that emits an erase field during the at least one traversal at the seek velocity. The at least one traversal sanitizes the data.
    Type: Application
    Filed: July 19, 2023
    Publication date: March 14, 2024
    Inventors: Xiong Liu, Lihong Zhang, Quan Li, Wenxiang Xie
  • Publication number: 20240083847
    Abstract: DCAF15 is a substrate recognition (adaptor) protein of E3 ubiquitin ligase. Disclosed herein are compounds that recruit ubiquitin ligase CRL4DCAF15, to a target RNA recognition motif (RRM), causing its degradation. Also disclosed herein are compositions and methods of use in treating associated disorders and diseases.
    Type: Application
    Filed: September 29, 2023
    Publication date: March 14, 2024
    Applicant: DANA-FARBER CANCER INSTITUTE, INC.
    Inventors: Nathanael S. Gray, Eric Fischer, Hojong Yoon, Tinghu Zhang, Tyler Faust, Katherine Donovan, Quan Cai, Zhengnian Li
  • Patent number: 11922732
    Abstract: A liveness detection system uses a combination of interactive and silent tests to verify physical presence of a live person at a client device. The system superimposes a box on a live video of the space in front of the client device and instructs the user to move to a position that places his or her face within the box. While the user's face is within the box, the system captures a sequence of frames from the video while an amount of illumination cast on the user's face is switched between bright and dark levels according to a random, semi-random, or predefined flash sequence. The system analyzes the resulting sequence of frames to confirm that the user's head pose is consistent with the location of the box, and that changes in brightness of the image of the user's face across the captured frames are consistent with the flash sequence.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: March 5, 2024
    Assignee: PayPal, Inc.
    Inventors: Jiyi Zhang, Quan Jin Ferdinand Tang
  • Patent number: 11920983
    Abstract: Embodiments are directed to an optical spectrometry method, comprising: generating a sequence of 2D Hadamard masks along the time dimension, wherein each 2D Hadamard mask is arranged with a wavelength dimension and a coefficient dimension; detecting an optical signal from light transmitted through the sequence of 2D Hadamard masks; and reconstructing a spectrum to be detected by analyzing the optical signal, wherein each 2D Hadamard mask in the sequence of 2D Hadamard masks comprises a plurality of columns along the wavelength dimension, each column corresponding to a different Hadamard coefficient, and having different respective sequency values along the time dimension.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: March 5, 2024
    Assignee: XIAMEN UNIVERSITY
    Inventors: Quan Liu, Yi Zhang
  • Patent number: 11911786
    Abstract: The present invention discloses a hydrate energy-storage temperature-control material and a preparation method therefor. The material includes a refrigerant hydrate and a cross-linked polymer. The preparation method comprises the following steps: first, preparing a refrigerant hydrate by using a high-pressure reactor, and conducting grinding, crushing and sieving to obtain hydrate particles; then, uniformly spraying polytetrafluoroethylene suspended ultrafine powder onto the surface of the hydrate particles by using an electrostatic spraying device, and putting the hydrate particles into a plasma instrument to modify polytetrafluoroethylene so as to allow free radicals to be formed on the polytetrafluoroethylene powder surface; finally, subjecting monomers to graft polymerization with the free radicals on the polytetrafluoroethylene surface under the irradiation of a high-pressure mercury lamp of UV lighting system to stabilize the structure of the material, preparing a final product.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: February 27, 2024
    Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Jiafei Zhao, Yongchen Song, Mingzhao Yang, Hongsheng Dong, Lunxiang Zhang, Quan Shi, Lei Yang, Zheng Ling, Xiang Sun, Yanghui Li, Weiguo Liu
  • Patent number: 11906155
    Abstract: A light source system and a light-emitting device are provided. The light source system includes an array of light-emitting diodes, the light-emitting diodes including light-emitting diode chips; a collimating lens group located on a light path of light emitted by the array of the light-emitting diodes, the collimating lens group being configured to collimate light beams emitted by the light-emitting diode chips; and a fly-eye lens arranged on a light path of light outputted from the collimating lens group. The fly-eye lens includes micro lens units corresponding to the light-emitting diode chips, and for at least one light-emitting diode chip of the light-emitting diode chips, an image formed by each of at least one light-emitting diode chip on surfaces of the micro lens units is completely within a surface of one of the micro lens units. A ratio of side lobes is reduced, thereby improving the energy utilization rate.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: February 20, 2024
    Assignee: YLX INCORPORATED
    Inventors: Quan Zhang, Jinjiang Fu, Hui Chen
  • Patent number: 11883182
    Abstract: A system and a method is provided for assessing motion of a biological tissue of a subject including one or more superficial biological layers and a targeted biological layer. An optical perturbation is introduced within the one or more superficial biological layers but not within the targeted biological layer. A set of optical signal data is acquired preceding, during, or following the optical perturbation and, using the set of optical signal data, a set of optical characteristics is determined that is representative of light transiting the biological layers. Using the set of optical characteristics and a model of the biological layers, a target optical signal consistent with a target biological layer is separated and a movement of the desired biological tissue is determined using the target optical signal.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: January 30, 2024
    Assignee: The General Hospital Corporation
    Inventors: Quan Zhang, Gary Strangman
  • Patent number: 11850066
    Abstract: A system and method for measuring and monitoring blood pressure is provided. The system includes a wearable device and a tonometry device coupled to the wearable device. The Tonometry device is configured to compress a superficial temporal artery (STA] of a user. A sensor pad is attached to the wearable device adjacent the tonometry device. A blood pressure sensor is integrated within the sensor pad for continuous, unobtrusive blood pressure monitoring.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: December 26, 2023
    Assignee: The General Hospital Corporation
    Inventors: Quan Zhang, Yuanting Zhang
  • Patent number: 11834755
    Abstract: The present application provides a lithium niobate having a p-type nanowire region or an n-type nanowire region and a method for preparing the same. The method includes heating and then cooling a multi-domain lithium niobate crystal to confine hydrogen ions of the multi-domain lithium niobate crystal in domain wall regions; and poling the multi-domain lithium niobate crystal that has been heated by applying a voltage, to reverse a direction of polarization of one or more domains of the multi-domain lithium niobate crystal. The lithium niobate includes a lithium niobate crystal and a p-type nanowire region or an n-type nanowire region located in the lithium niobate crystal and adjacent to a surface of the lithium niobate crystal. The present application also provides a method for converting the charge carrier type of the lithium niobate nanowire region.
    Type: Grant
    Filed: April 25, 2021
    Date of Patent: December 5, 2023
    Assignee: NANKAI UNIVERSITY
    Inventors: Guo-Quan Zhang, Xiao-Jie Wang, Yue-Jian Jiao, Fang Bo, Jing-Jun Xu
  • Patent number: 11816084
    Abstract: Anchor tree cross-merge within a distributed storage system. A computer system identifies a data structure that includes (i) a root anchor tree and (ii) an ordered set of anchor trees that are ordered based on their creation, such that a last anchor tree of the ordered set of anchor trees is most-recently created. The data structure stores index data for a set of objects stored in a non-volatile storage. The computer system creates a new anchor tree in the ordered set of anchor trees. The computer system identifies, from a set of delta tables, index data representing one or more objects that are stored on the non-volatile storage. The computer system merges the index data representing the one or more objects into the new anchor tree.
    Type: Grant
    Filed: August 24, 2022
    Date of Patent: November 14, 2023
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Krishnan Varadarajan, Jegan Devaraju, Shane Mainali, Quan Zhang, Sridhar Srinivasan, Bin Tong, He Su, Ju Wang, Manish Chablani, Hao Feng
  • Patent number: 11797748
    Abstract: A method for generating a mask pattern to be employed in a patterning process. The method including obtaining (i) a first feature patch including a first polygon portion of an initial mask pattern, and (ii) a second feature patch including a second polygon portion of the initial mask pattern; adjusting the second polygon portion at a patch boundary between the first feature patch and the second feature patch such that a difference between the first polygon portion and the second polygon portion at the patch boundary is reduced; and combining the first polygon portion and the adjusted second polygon portion at the patch boundary to form the mask pattern.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: October 24, 2023
    Assignee: ASML NETHERLANDS B.V.
    Inventors: Quan Zhang, Yong-Ju Cho, Zhangnan Zhu, Boyang Huang, Been-Der Chen
  • Patent number: 11734490
    Abstract: A method to determine a curvilinear pattern of a patterning device that includes obtaining (i) an initial image of the patterning device corresponding to a target pattern to be printed on a substrate subjected to a patterning process, and (ii) a process model configured to predict a pattern on the substrate from the initial image, generating, by a hardware computer system, an enhanced image from the initial image, generating, by the hardware computer system, a level set image using the enhanced image, and iteratively determining, by the hardware computer system, a curvilinear pattern for the patterning device based on the level set image, the process model, and a cost function, where the cost function (e.g., EPE) determines a difference between a predicted pattern and the target pattern, where the difference is iteratively reduced.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: August 22, 2023
    Assignee: ASML NETHERLANDS B.V.
    Inventors: Quan Zhang, Been-Der Chen, Rafael C. Howell, Jing Su, Yi Zou, Yen-Wen Lu
  • Publication number: 20230253511
    Abstract: This disclosure provides a semiconductor device, a method of manufacturing the same, a 3D NAND memory, and a memory system. The semiconductor device includes a substrate having a first trench at a surface thereof, and a first insulating layer formed on the surface of the substrate and inside the first trench. The first insulating layer formed inside the first trench forms a second trench that is embedded in the first trench. The semiconductor device further includes a conducting layer formed on a surface of the first insulating layer away from the substrate and inside the second trench.
    Type: Application
    Filed: February 8, 2023
    Publication date: August 10, 2023
    Applicant: Yangtze Memory Technologies Co., Ltd.
    Inventors: Lu ZHOU, Quan ZHANG, Lan YAO
  • Publication number: 20230198512
    Abstract: A driver metal-oxide-semiconductor field-effect transistor DrMOS, an integrated circuit, an electronic device, and a preparation method are provided. The DrMOS mainly includes a first die and a second die. The first die includes a drive circuit and a first switching transistor, and the drive circuit is connected to a gate of the first switching transistor. The second die includes a second switching transistor, and the drive circuit is connected to a gate of the second switching transistor through a first conductor. The drive circuit and the first switching transistor are prepared in a same die. This helps to reduce an area, loss, and costs of the DrMOS. The first switching transistor and the second switching transistor are prepared in different dies that reduces type selection limitation.
    Type: Application
    Filed: February 17, 2023
    Publication date: June 22, 2023
    Inventors: Fayou YIN, Boning HUANG, Wentao YANG, Quan ZHANG, Qian ZHAO
  • Publication number: 20230141799
    Abstract: A method for determining a patterning device pattern. The method includes obtaining (i) an initial patterning device pattern having at least one feature, and (ii) a desired feature size of the at least one feature, obtaining, based on a patterning process model, the initial patterning device pattern and a target pattern for a substrate, a difference value between a predicted pattern of the substrate image by the initial patterning device and the target pattern for the substrate, determining a penalty value related the manufacturability of the at least one feature, wherein the penalty value varies as a function of the size of the at least one feature, and determining the patterning device pattern based on the initial patterning device pattern and the desired feature size such that a sum of the difference value and the penalty value is reduced.
    Type: Application
    Filed: December 28, 2022
    Publication date: May 11, 2023
    Applicant: ASML NETHERLANDS B.V.
    Inventors: Roshni BISWAS, Rafael C. HOWELL, Cuiping ZHANG, Ningning JIA, Jingjing LIU, Quan ZHANG
  • Patent number: 11645300
    Abstract: Provided is a method and system for normalizing catalog item data to create higher quality search results. In one example, the method may include receiving a record comprising an unstructured description of an object, identifying a type of the object from among a plurality of object types and identifying a predefined attribute of the identified type of object, extracting a value from the unstructured description corresponding to the predefined attribute and modifying the extracted value to generate a normalized attribute value, and storing a structured record of the object in a structured format comprising a plurality of values of a plurality of attributes of the object from the unstructured description including the normalized attribute value for the predefined attribute of the object.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: May 9, 2023
    Assignee: SAP SE
    Inventors: Sudhir Bhojwani, Sudha Lakshman, Quan Zhang, Sandeep Chakravarty, Tu Truong, Fuming Wu, Yue Li, Lin Dong, Richa Namballa
  • Publication number: 20230126267
    Abstract: A method of fabricating a semiconductor device includes forming a first shallow trench isolation structure in a first region of a substrate and second shallow trench isolation structures in a second region of the substrate. The method also includes forming a mask layer over the substrate, the first shallow trench isolation structure, and the second shallow trench isolation structures. The method further includes etching the mask layer and second shallow trench isolation structures in the second region sequentially to form a semiconductor protrusion between the second shallow trench isolation structures.
    Type: Application
    Filed: December 27, 2022
    Publication date: April 27, 2023
    Inventors: Quan Zhang, Lan Yao, Lu Zhou
  • Publication number: 20230100578
    Abstract: A method for determining a mask pattern and a method for training a machine learning model. The method for determining a mask pattern includes obtaining, via executing a model using a target pattern to be printed on a substrate as an input pattern, a post optical proximity correction (post-OPC) pattern; determining, based on the post-OPC pattern, a simulated pattern that will be printed on the substrate; and determining the mask pattern based on a difference between the simulated pattern and the target pattern. The determining of the mask pattern includes modifying, based on the difference, the input pattern inputted to the model such that the difference is reduced; and executing, using the modified input pattern, the model to generate a modified post-OPC pattern from which the mask pattern can be derived.
    Type: Application
    Filed: February 4, 2021
    Publication date: March 30, 2023
    Applicant: ASML NETHERLANDS B.V.
    Inventors: Yu CAO, Jun TAO, Quan ZHANG, Yongsheng SHU, Wei-chun FONG
  • Publication number: 20230082694
    Abstract: The present disclosure discloses a semiconductor device, a three-dimensional memory and a method for fabricating the semiconductor device. The method includes forming a shallow trench isolation trench in a substrate. The substrate comprises an active region including a source region, a channel region, and a drain region. The shallow trench isolation trench is located on a periphery of the active region of the substrate. The method further comprises forming a bottom isolating layer in a bottom portion of the shallow trench isolation trench, forming a gate structure on a channel region of the substrate, and forming a hard insulating layer in an upper portion of the shallow trench isolation trench and on sidewalls of the active region, such that the hard insulating layer covers a source region and a drain region of the substrate.
    Type: Application
    Filed: July 22, 2022
    Publication date: March 16, 2023
    Inventors: Quan Zhang, Lan Yao, Jiaji Wu, Beibei Zhu