Patents by Inventor Ran Xu

Ran Xu 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: 20240143626
    Abstract: This application discloses a shard adjustment method for a time series database, belongs to the field of data processing technologies. First, feature information of an access request of at least one user for a data table of a time series database is obtained. The data table is divided into a plurality of shard groups according to a predetermined rule, and each shard group can be further divided into a plurality of shards. Each shard group is set in a different time period, and each shard is set in a different node. Then, the predetermined rule is adjusted based on the feature information, and a new shard group and/or a new shard that match/matches the access habit are/is generated according to an adjusted rule.
    Type: Application
    Filed: January 5, 2024
    Publication date: May 2, 2024
    Inventors: Jingqi Mao, Ran Xu, Zongquan Zhang
  • Patent number: 11960480
    Abstract: Provided is a system that includes at least one processor programmed or configured to receive an XML data file, wherein the XML data file includes data associated with one or more input parameters of a machine learning model, generate a code generation template based on the data associated with one or more input parameters of the machine learning model included in the XML file, where the code generation template includes one or more keys associated with one or more parameters of a transaction aggregate for an account of a user, and generate a file of executable code based on the code generation template, wherein the file of executable code includes instructions that, when executed by at least one processor, causes at least one processor to retrieve transaction aggregate data associated with the transaction aggregate for the account of the user. A method and computer program product are also provided.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: April 16, 2024
    Assignee: Visa International Service Association
    Inventors: Hongqin Song, Yu Gu, Roger Cheng-Chung Huang, Ran Xu, Shawn Johnson
  • Publication number: 20240121677
    Abstract: Embodiments of the present disclosure relate to methods and apparatuses for handover and reestablishment in a wireless communication system. According to some embodiments of the disclosure, a method may include: receiving, at a user equipment (UE), a radio resource control (RRC) reconfiguration message including a path switch indication and a list of candidate relays; selecting a target relay from the list of candidate relays; and establishing a PC5 RRC connection with the target relay. Furthermore, the UE may select another target relay for path switch if a path switch failure associated with the first selected target relay happens.
    Type: Application
    Filed: January 27, 2021
    Publication date: April 11, 2024
    Inventors: Lianhai WU, Jing HAN, Ran YUE, Jie SHI, Min XU
  • Publication number: 20240114372
    Abstract: The present application relates to a method and an apparatus for performing cell measurement process. One embodiment of the present disclosure provides a method performed by a method performed by a User Equipment (UE) in a wireless network with a variable coverage, comprising: performing a cell measurement process of one or more cells of the wireless network; and in response to a variation in the coverage of the wireless network in relation to the UE, disabling the cell measurement process of the one or more cells of the wireless network.
    Type: Application
    Filed: February 4, 2021
    Publication date: April 4, 2024
    Applicant: Lenovo (Beijing) Limited
    Inventors: Min Xu, Haiming Wang, Lianhai Wu, Jie Shi, Jing Han, Ran Yue, Jie Hu
  • Publication number: 20240104809
    Abstract: Embodiments described herein provide systems and methods for multimodal layout generations for digital publications. The system may receive as inputs, a background image, one or more foreground texts, and one or more foreground images. Feature representations of the background image may be generated. The foreground inputs may be input to a layout generator which has cross attention to the background image feature representations in order to generate a layout comprising of bounding box parameters for each input item. A composite layout may be generated based on the inputs and generated bounding boxes. The resulting composite layout may then be displayed on a user interface.
    Type: Application
    Filed: January 30, 2023
    Publication date: March 28, 2024
    Inventors: Ning Yu, Chia-Chih Chen, Zeyuan Chen, Caiming Xiong, Juan Carlos Niebles Duque, Ran Xu, Rui Meng
  • Publication number: 20240094420
    Abstract: The embodiment of the present disclosure provides an imaging method for a dispersion energy spectrum of surface waves, an electronic device, and a storage medium. The imaging method includes: obtaining first surface wave data, and the first surface wave data corresponding to a space-time domain representation; processing the first surface wave data to obtain the second surface wave data, and the second surface wave data corresponding to a space-frequency domain representation; and processing the second surface wave data based on a preset algorithm to obtain a first imaging result, the first imaging result corresponding to a slowness-frequency domain representation.
    Type: Application
    Filed: June 27, 2023
    Publication date: March 21, 2024
    Applicant: SOUTHWEST PETROLEUM UNIVERSITY
    Inventors: Weiping CAO, Luo LI, Xuri HUANG, Hai YAO, Yungui XU, Yezheng HU, Jing TANG, Ran YANG, Mengcheng LI
  • Publication number: 20240094563
    Abstract: An automatic righting system includes a discrimination calibration module, a righting module, and a controller. The discrimination calibration module includes a distance sensing unit. The distance sensing unit is located at the front end of the glasses and configured to acquire the distance between the distance sensing unit and a first feature position. The righting module includes a push-up air cushion. The push-up air cushion is mounted at the front end of the glasses. The push-up air cushion is configured to be inflated to push the glasses to move upward. The controller is electrically connected to the distance sensing unit and the push-up air cushion. The controller is configured to control the push-up air cushion to start or stop to right the glasses according to a distance signal of the distance sensing unit.
    Type: Application
    Filed: December 30, 2022
    Publication date: March 21, 2024
    Applicant: Luxshare Precision Technology (Nanjing) Co., LTD
    Inventors: Gaofeng LV, Cheng WANG, Chunguang LI, Zhongyu WU, Yajuan GAO, Birong JIANG, Ran YOU, Guojun XU
  • Publication number: 20240070868
    Abstract: Embodiments described herein provide an open-vocabulary instance segmentation framework that adopts a pre-trained vision-language model to develop a pipeline in detecting novel categories of instances.
    Type: Application
    Filed: January 25, 2023
    Publication date: February 29, 2024
    Inventors: Ning Yu, Vibashan Vishnukumar Sharmini, Chen Xing, Juan Carlos Niebles Duque, Ran Xu
  • Publication number: 20240073968
    Abstract: The present application relates to a method and an apparatus for fallback of data transmission. The method includes: detecting a trigger condition relating to a wireless network characteristic, while the user equipment is in a non-connected RRC state with a network device; and controlling a data transmission according to the detection of the trigger condition.
    Type: Application
    Filed: January 13, 2021
    Publication date: February 29, 2024
    Applicant: Lenovo (Beijing) Limited
    Inventors: Ran Yue, Yi Zhang, Jie Shi, Min Xu, Jie Hu
  • Patent number: 11915500
    Abstract: A system uses a neural network based model to perform scene text recognition. The system achieves high accuracy of prediction of text from scenes based on a neural network architecture that uses double attention mechanism. The neural network based model includes a convolutional neural network component that outputs a set of visual features and an attention extractor neural network component that determines attention scores based on the visual features. The visual features and the attention scores are combined to generate mixed features that are provided as input to a character recognizer component that determines a second attention score and recognizes the characters based on the second attention score. The system trains the neural network based model by adjusting the neural network parameters to minimize a multi-class gradient harmonizing mechanism (GHM) loss. The multi-class GHM loss varies based on a level of difficulty of the sample.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: February 27, 2024
    Assignee: Salesforce, Inc.
    Inventors: Pan Zhou, Peng Tang, Ran Xu, Chu Hong Hoi
  • Publication number: 20230418421
    Abstract: A biometric input system for an electronic device is provided. The biometric input system may be a fingerprint sensing system. The biometric input system includes a biometric sensing component, which may be a capacitive sensing component. The biometric input system also includes a composite cover element, which may be a dielectric cap or coating, and the biometric sensing component is capable of receiving a biometric input from a user through the composite cover element. Electronic devices including the biometric input system are also provided.
    Type: Application
    Filed: May 26, 2023
    Publication date: December 28, 2023
    Inventors: Andrew Deng, Timothy D. Koch, Hui-Shan Chang, Andrew W. Joyce, Henry H. Yang, Ran Xu, Patrick E. O'Brien, Yu Hsuan Chao, Dale Setlak, Giovanni Gozzini
  • Publication number: 20230401726
    Abstract: Methods and systems for object detection are disclosed. The methods and systems include: receiving a video frame, determining an execution configuration among multiple configurations at an inference time based on the video frame and multiple metrics (e.g., a latency metric, an accuracy metric, and an energy metric), and performing object detection or object tracking at the inference time based on the video frame and the execution configuration. Other aspects, embodiments, and features are also claimed and described.
    Type: Application
    Filed: June 13, 2023
    Publication date: December 14, 2023
    Inventors: Somali Chaterji, Saurabh Bagchi, Ran Xu, Yin Li
  • Publication number: 20230384118
    Abstract: This application provides a three-dimensional road network construction method performed by an electronic device. The method includes: obtaining a two-dimensional road network, the two-dimensional road network comprising a plurality of paths, each path being formed by connecting a plurality of nodes; determining a relative elevation for a node of a current path overlapping the current path and/or another path among the nodes of the current path, the relative elevation representing a height of the current path at the node from a reference plane; determining relative elevations of nodes constituting a center line of the current path according to the relative elevations of the nodes of the current path and a width of the current path; and constructing a three-dimensional road corresponding to the current path according to the width and the relative elevations of the nodes of the center line of the current path to obtain a three-dimensional road network.
    Type: Application
    Filed: August 10, 2023
    Publication date: November 30, 2023
    Inventor: Ran XU
  • Publication number: 20230290145
    Abstract: A system may receive video information. The system may select a combination of light-weight features and heavy weight features. The light-weight features may be extracted from the video information and the heavy weight features not extracted. The system may forecast, based on the light-weight features and the heavy weight features, accuracy, and latency metrics for performing the object detection and tracking using a plurality of candidate branch configurations, respectively. The system may select a branch configuration from the plurality of candidate branch configurations in response to satisfaction of an optimization criterion. The system may perform object detection and tracking based on the selected branch configuration.
    Type: Application
    Filed: March 10, 2023
    Publication date: September 14, 2023
    Applicant: Purdue Research Foundation
    Inventors: Somali Chaterji, Saurabh Bagchi, Ran Xu
  • Patent number: 11710077
    Abstract: Computing systems may support image classification and image detection services, and these services may utilize object detection/image classification machine learning models. The described techniques provide for normalization of confidence scores corresponding to manipulated target images and for non-max suppression within the range of confidence scores for manipulated images. In one example, the techniques provide for generating different scales of a test image, and the system performs normalization of confidence scores corresponding to each scaled image and non-max suppression per scaled image These techniques may be used to provide more accurate image detection (e.g., object detection and/or image classification) and may be used with models that are not trained on modified image sets. The model may be trained on a standard (e.g. non-manipulated) image set but used with manipulated target images and the described techniques to provide accurate object detection.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: July 25, 2023
    Assignee: Salesforce, Inc.
    Inventors: Ankit Chadha, Caiming Xiong, Ran Xu
  • Patent number: 11699297
    Abstract: An online system extracts information from non-fixed form documents. The online system receives an image of a form document and obtains a set of phrases and locations of the set of phrases on the form image. For at least one field, the online system determines key scores for the set of phrases. The online system identifies a set of candidate values for the field from the set of identified phrases and identifies a set of neighbors for each candidate value from the set of identified phrases. The online system determines neighbor scores, where a neighbor score for a candidate value and a respective neighbor is determined based on the key score for the neighbor and a spatial relationship of the neighbor to the candidate value. The online system selects a candidate value and a respective neighbor based on the neighbor score as the value and key for the field.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: July 11, 2023
    Assignee: Salesforce, Inc.
    Inventors: Mingfei Gao, Zeyuan Chen, Le Xue, Ran Xu, Caiming Xiong
  • Patent number: 11669157
    Abstract: Embodiments of the present application disclose a deformation control method, a deformation control apparatus, and a user equipment (UE). The method comprises: generating trigger information according to a focus behavior of a user on at least one associated region in multiple associated regions on a deformation controllable device, where the multiple associated regions are multiple regions on which the user synchronously focuses or will synchronously focus; and controlling, in response to the trigger information, the deformation controllable device to be deformed to a target shape that meets at least one shape restriction condition. The at least one shape restriction condition comprises: a value of at least one angle between at least one normal line of any associated region in the multiple associated regions and at least one normal line of any other associated region is less than an angle threshold.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: June 6, 2023
    Assignee: BEIJING ZHIGU RUI TUO TECH CO., LTD.
    Inventors: Kuifei Yu, Ran Xu
  • Publication number: 20230153307
    Abstract: Embodiments described herein provide an online domain adaptation framework based on cross-domain bootstrapping for online domain adaptation, in which the target domain streaming data is deleted immediately after adapted. At each online query, the data diversity is increased across domains by bootstrapping the source domain to form diverse combinations with the current target query. To fully take advantage of the valuable discrepancies among the diverse combinations, a set of independent learners are trained to preserve the differences. The knowledge of the learners is then integrated by exchanging their predicted pseudo-labels on the current target query to co-supervise the learning on the target domain, but without sharing the weights to maintain the learners' divergence.
    Type: Application
    Filed: January 28, 2022
    Publication date: May 18, 2023
    Inventors: Luyu Yang, Mingfei Gao, Zeyuan Chen, Ran Xu, Chetan Ramaiah
  • Publication number: 20230133690
    Abstract: An application server may receive an input document including a set of input text fields and an input key phrase querying a value for a key-value pair that corresponds to one or more of the set of input text fields. The application server may extract, using an optical character recognition model, a set of character strings and a set of two-dimensional locations of the set of character strings on a layout of the input document. After extraction, the application server may input the extracted set of character strings and the set of two-dimensional locations into a machine learned model that is trained to compute a probability that a character string corresponds to the value for the key-value pair. The application server may then identify the value for the key-value pair corresponding to the input key phrase and may out the identified value.
    Type: Application
    Filed: November 1, 2021
    Publication date: May 4, 2023
    Inventors: Mingfei Gao, Ran Xu
  • Patent number: 11524958
    Abstract: Provided are a tricyclic compound as shown in formula (I) as a CRTH2 inhibitor, or a pharmaceutically acceptable salt, a tautomer, a stereoisomer or a solvate thereof, and the use thereof in treating diseases related to CRTH2 receptors.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: December 13, 2022
    Assignee: CHIA TAI TIANQING PHARMACEUTICAL GROUP CO., LTD.
    Inventors: Bin Chen, Yuanshan Yao, Yuan Chen, Ao Li, Ran Xu, Zhensheng Huang, Dongdong Tian, Hongwei Li, Chengshuai Yang, Jian Li, Shuhui Chen