Patents by Inventor Haifeng Chen

Haifeng Chen 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: 20240154537
    Abstract: A control circuit for an isolated power supply is disclosed, the control circuit includes a secondary-side drive signal generator, a secondary-side transistor switch turn-off detector and a primary-side control signal generator. The primary-side control signal generator is configured to: determine a second turn-on instant referring to an turn-off instant of the secondary-side synchronous rectification transistor from the turn-off acknowledgement signal; determine a first turn-on instant referring to a supposed turn-on instant for the primary-side transistor switch from the feedback signal of the output voltage of the isolated power supply; and determine the turn-on instant for the primary-side transistor switch from the second turn-on instant or the first turn-on instant whichever is later, and responsively generate the primary-side transistor switch control signal.
    Type: Application
    Filed: January 12, 2024
    Publication date: May 9, 2024
    Inventors: Yanmei GUO, Zhen ZHU, Yihui CHEN, Yuehui LI, Xiaoru GAO, Haifeng MIAO, Hanfei YANG
  • Publication number: 20240153257
    Abstract: A monitoring system based on a digital converter station includes a first monitoring terminal deployed at a first-level monitoring side, a second monitoring terminal deployed at a second-level monitoring side, and a third monitoring terminal deployed at a third-level monitoring side; the monitoring terminal at each level includes a communication module, a human-machine interaction module, a device status monitoring module, a device alarm management module, a video fusion processing module, and a data transmission adjustment and control module.
    Type: Application
    Filed: January 11, 2024
    Publication date: May 9, 2024
    Applicants: STATE GRID CORPORATION OF CHINA, STATE GRID ECONOMIC AND TECHNOLOGICAL RESEARCH INSTITUTE CO., LTD, NR ELECTRIC CO., LTD., XJ GROUP CORPORATION, NARI TECHNOLOGY CO., LTD, BEIJING SGITG ACCENTURE INFORMATION TECHNOLOGY CENTER CO., LTD., HUAWEI TECHNOLOGY CO., LTD
    Inventors: Wei JIN, Qing WANG, Xianshan GUO, Jun LYU, Siyuan LIU, Xiang ZHANG, Yanguo WANG, Zhanguo ZHANG, Haifeng WANG, Chong TONG, Ming LI, Wei CHENG, Ning ZHAO, Zhou CHEN, Xiaojun HOU, Hanqing ZHAO
  • Publication number: 20240136063
    Abstract: Systems and methods for out-of-distribution detection of nodes in a graph includes collecting evidence to quantify predictive uncertainty of diverse labels of nodes in a graph of nodes and edges using positive evidence from labels of training nodes of a multi-label evidential graph neural network. Multi-label opinions are generated including belief and disbelief for the diverse labels. The opinions are combined into a joint belief by employing a comultiplication operation of binomial opinions. The joint belief is classified to detect out-of-distribution nodes of the graph. A corrective action is performed responsive to a detection of an out-of-distribution node. The systems and methods can employ evidential deep learning.
    Type: Application
    Filed: October 5, 2023
    Publication date: April 25, 2024
    Inventors: Xujiang Zhao, Haifeng Chen
  • Publication number: 20240135188
    Abstract: A computer-implemented method for ordinal prediction is provided. The method includes encoding time series data with a temporal encoder to obtain latent space representations. The method includes optimizing the temporal encoder using semi-supervised learning to distinguish different classes in the labeled space using labeled data, and augment the latent space representations using unlabeled training data, to obtain semi-supervised representations. The method further includes discarding a linear layer after the temporal encoder and fixing the temporal encoder. The method also includes training k-1 binary classifiers on top of the semi-supervised representations to obtain k-1 binary predictions. The method additionally includes identifying and correcting inconsistent ones of the k-1 binary predictions by matching the inconsistent ones to consistent ones of the k-1 binary predictions. The method further includes aggregating the k-1 binary predictions to obtain an ordinal prediction.
    Type: Application
    Filed: December 19, 2023
    Publication date: April 25, 2024
    Inventors: Liang Tong, Takehiko Mizoguchi, Zhengzhang Chen, Wei Cheng, Haifeng Chen, Nauman Ahad
  • Publication number: 20240134736
    Abstract: Methods and systems for anomaly detection include encoding a multivariate time series and a multi-type event sequence using respective transformers and an aggregation network to generate a feature vector. Anomaly detection is performed using the feature vector to identify an anomaly within a system. A corrective action is performed responsive to the anomaly to correct or mitigate an effect of the anomaly. The detected anomaly can be used in a healthcare context to support decision making by medical professionals with respect to the treatment of a patient. The encoding may include machine learning models to implement the transformers and the aggregation network using deep learning.
    Type: Application
    Filed: October 23, 2023
    Publication date: April 25, 2024
    Inventors: Yuncong Chen, LuAn Tang, Yanchi Liu, Zhengzhang Chen, Haifeng Chen
  • Patent number: 11966203
    Abstract: A system is disclosed, in accordance with one or more embodiments of the present disclosure. The system includes a metrology tool configured to acquire one or more measurements of a portion of a sample. The system includes a controller including one or more processors configured to execute program instructions causing the one or more processors to: generate a surface kinetics model output based on a surface kinetics model; determine an expected response of the surface kinetics model output to excitation by polarized light; compare the determined expected response to the one or more measurements; generate one or more metrics based on the comparison between the determined expected response and the one or more measurements of the sample; adjust one or more parameters of the surface kinetics model to generate an adjusted surface kinetics model; and apply the adjusted surface kinetics model to simulate on-sample performance during plasma processing.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: April 23, 2024
    Assignee: KLA Corporation
    Inventors: Ankur Agarwal, Chad Huard, Yiting Zhang, Haifeng Pu, Xin Li, Premkumar Panneerchelvam, Fiddle Han, Yeurui Chen
  • Publication number: 20240127072
    Abstract: A computer-implemented method for ordinal prediction is provided. The method includes encoding time series data with a temporal encoder to obtain latent space representations. The method includes optimizing the temporal encoder using semi-supervised learning to distinguish different classes in the labeled space using labeled data, and augment the latent space representations using unlabeled training data, to obtain semi-supervised representations. The method further includes discarding a linear layer after the temporal encoder and fixing the temporal encoder. The method also includes training k?1 binary classifiers on top of the semi-supervised representations to obtain k?1 binary predictions. The method additionally includes identifying and correcting inconsistent ones of the k?1 binary predictions by matching the inconsistent ones to consistent ones of the k?1 binary predictions. The method further includes aggregating the k?1 binary predictions to obtain an ordinal prediction.
    Type: Application
    Filed: December 19, 2023
    Publication date: April 18, 2024
    Inventors: Liang Tong, Takehiko Mizoguchi, Zhengzhang Chen, Wei Cheng, Haifeng Chen, Nauman Ahad
  • Publication number: 20240130068
    Abstract: Technologies for a flexible three-dimensional power plane in a chassis are disclosed. In one embodiment, a flexible ribbon cable is laid along a circuit board tray. The flexible ribbon cable is secured to the tray using power bosses. The power bosses connect to one or more conductors on the ribbon cable. When the circuit board is mounted on the circuit board tray, the power bosses extend through holes in the circuit board and mate with power clips on the surface of the circuit board tray. The ribbon cable, power bosses, and power clips can distribute power to various locations on the circuit board, without requiring large traces that take up space on the circuit board.
    Type: Application
    Filed: December 28, 2023
    Publication date: April 18, 2024
    Applicant: Intel Corporation
    Inventors: Nan Wang, Zhichao Z. Zhang, Lihui Wu, Jialiang Xu, Xiaoguo Liang, Bo Chen, Haifeng Gong
  • Publication number: 20240104393
    Abstract: Systems and methods for personalized federated learning. The method may include receiving at a central server local models from a plurality of clients, and aggregating a heterogeneous data distribution extracted from the local models. The method can further include processing the data distribution as a linear mixture of joint distributions to provide a global learning model, and transmitting the global learning model to the clients. The global learning model is used to update the local model.
    Type: Application
    Filed: September 13, 2023
    Publication date: March 28, 2024
    Inventors: Wei Cheng, Wenchao Yu, Haifeng Chen, Yue Wu
  • Publication number: 20240104344
    Abstract: Methods and systems for training a model include distinguishing hidden states of a monitored system based on condition information. An encoder and decoder are generated for each respective hidden state using forward and backward autoencoder losses. A hybrid hidden state is determined for an input sequence based on the hidden states. The input sequence is reconstructed using the encoders and decoders and the hybrid hidden state. Parameters of the encoders and decoders are updated based on a reconstruction loss.
    Type: Application
    Filed: September 14, 2023
    Publication date: March 28, 2024
    Inventors: LuAn Tang, Peng Yuan, Yuncong Chen, Haifeng Chen, Yuji Kobayashi, Jiafan He
  • Publication number: 20240092866
    Abstract: Provided herein are compositions and methods comprising non-naturally occurring nucleic acid sequences that encode biologics. Also provided are methods of utilizing the provided compositions and methods as ocular therapeutics for prevention and treatment of various diseases and conditions.
    Type: Application
    Filed: October 6, 2023
    Publication date: March 21, 2024
    Inventors: Shengjiang LIU, Haifeng CHEN
  • Publication number: 20240094471
    Abstract: A collimation fiber adapter includes a base, a metasurface collimation lens, a sleeve, and a fiber ferrule. The base includes a mounting cavity with a positioning structure at an end of the mounting cavity. The metasurface collimation lens is connected to the positioning structure. The sleeve is arranged inside the mounting cavity. An end of the sleeve away from the positioning structure is configured to assemble a fiber. The fiber ferrule is arranged inside the mounting cavity and assembled with an end of the sleeve close to the positioning structure. A first side end surface of the fiber ferrule away from the positioning structure is configured to be coupled with the fiber. A second side end surface of the fiber ferrule close to the positioning structure is opposite to the metasurface collimation lens.
    Type: Application
    Filed: August 29, 2023
    Publication date: March 21, 2024
    Inventors: Haifeng CHEN, Lei SUN
  • Publication number: 20240086586
    Abstract: A computer-implemented method for simulating vehicle data and improving driving scenario detection is provided.
    Type: Application
    Filed: September 11, 2023
    Publication date: March 14, 2024
    Inventors: LuAn Tang, Shepard Jiang, Peng Yuan, Yuncong Chen, Haifeng Chen, Yuji Kobayashi
  • Patent number: 11929684
    Abstract: Isolated power supply control circuits, isolated power supply and control method thereof are disclosed, the control circuit for controlling an isolated power supply includes a secondary-side control signal generator and a primary-side control signal generator. The secondary-side control signal generator produces a secondary-side transistor switch control signal containing information about a turn-off instant of a secondary-side synchronous rectification transistor, which serves as a second turn-on instant. The primary-side control signal generator derives, from a feedback signal, a supposed turn-on instant for a primary-side transistor switch, which serves as a first turn-on instant. The primary side turn-on signal generator further derives a turn-on instant for the primary-side transistor switch from the second or first turn-on instant whichever is later and responsively generates a primary-side transistor switch control signal.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: March 12, 2024
    Assignee: SHANGHAI BRIGHT POWER SEMICONDUCTOR CO., LTD.
    Inventors: Yanmei Guo, Zhen Zhu, Yihui Chen, Yuehui Li, Xiaoru Gao, Haifeng Miao, Hanfei Yang
  • Publication number: 20240078431
    Abstract: Methods and systems for training a language model include retrieving a knowledge sentence, related to an input sentence, from a knowledge base. The input sentence, the knowledge sentence, and a prompt are encoded into an intermediate representation. The intermediate representation is decoded to generate a named entity from the input sentence that is of a type specified by the prompt. A language model is fine-tuned based on the named entity.
    Type: Application
    Filed: August 23, 2023
    Publication date: March 7, 2024
    Inventors: Xuchao Zhang, Haifeng Chen, Chang Lu
  • Patent number: 11918034
    Abstract: A device and method for preparing a fully granular cigarette/filter rod, and a prepared fully granular cigarette/filter rod are disclosed. In certain embodiments, negative pressure is used to adhere granular material onto a mesh-type conveyor belt. The granular material is preliminarily formed into fully granular cigarette/filter rod material by means of a pre-forming apparatus; the fully granular cigarette/filter rod material, traveling with the mesh-type conveyor belt, enters into a forming cavity, and undergoes heating and humidifying treatment, and a continuous solid porous substance is formed; the continuous solid porous substance is moved into the cooling/drying cavity, drying and cooling treatment are performed under the action of negative pressure, and a fully granular cigarette/filter rod with strong adhesion, porosity, permeability, and appropriate moisture is obtained.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: March 5, 2024
    Assignee: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Yong Jin, Qian Chen, Ke Li, Hongmei Fan, Saibo Yu, Shitai Wang, Chao Tan, Haifeng Tan, Qi Liu
  • Publication number: 20240070232
    Abstract: Methods and systems for training a model include determining class prototypes of time series samples from a training dataset. A task corresponding to the time series samples is encoded using the class prototypes and a task-level configuration. A likelihood value is determined based on outputs of a time series density model, a task-class distance from a task embedding model, and a task density model. Parameters of the time series density model, the task embedding model, and the task density model are adjusted responsive to the likelihood value.
    Type: Application
    Filed: August 21, 2023
    Publication date: February 29, 2024
    Inventors: Wei Cheng, Jingchao Ni, Liang Tong, Haifeng Chen, Yizhou Zhang
  • Publication number: 20240072160
    Abstract: A semiconductor device is disclosed herein. The semiconductor device includes a silicon carbide substrate, trench structures, mesa structures, a first oxide layer, a conductive layer, a second oxide layer, a dielectric layer, and an insulation layer. The trench structures are formed on a surface of the silicon carbide substrate. Each trench structure has sidewalls and a bottom, and each respective mesa structure is formed between the respective adjacent trench structures. The first oxide layer is formed on the sidewalls of the trench structures. The conductive layer is formed on the bottom of the trench structures and on a top surface of each mesa structure. The second oxide layer is formed on the first oxide layer and the conductive layer. The dielectric layer is formed on the second oxide layer. The insulation layer is formed on the dielectric layer.
    Type: Application
    Filed: August 23, 2023
    Publication date: February 29, 2024
    Inventors: Haifeng Yang, Zhiyong Chen, Vipindas Pala, Joel McGregor, Zeqiang Yao
  • Publication number: 20240067591
    Abstract: Disclosed in the present disclosure are a method and system for producing hexafluoro-1,3-butadiene. It includes: under the action of a catalyst, chlorotrifluoroethylene reacting with hydrogen gas in a first reactor to obtain a mixture, the mixture entering a rectification apparatus, trifluoroethylene obtained by rectification entering a second reactor and reacting with bromine under light to obtain 1,2-dibromo-trifluoroethane; in a third reactor pre-loaded with the 1,2-dibromo-trifluoroethane, adding the 1,2-dibromo-trifluoroethane and solid alkali, and performing reaction to obtain bromotrifluoroethylene; and adding the bromotrifluoroethylene to a fourth reactor holding with zinc powder, an initiator and an organic solvent for reaction, so as to obtain a trifluoroethenyl zinc bromide solution, performing filtration, and then adding a coupling agent for a coupling reaction, so as to obtain hexafluoro-1,3-butadiene.
    Type: Application
    Filed: February 27, 2023
    Publication date: February 29, 2024
    Inventors: Wucan LIU, Haifeng WU, Ling LI, Hao CHENG, Jingtian ZHANG, Jiexun CHEN
  • Publication number: 20240061739
    Abstract: A computer-implemented method for identifying root cause failure and fault events is provided. The method includes detecting a trigger point, converting, via an encoder, previous system state data, new batch data in a next system state, and a causal graph to system state-invariant embeddings and system state-dependent embeddings, generating a learned causal graph, via a graph generation layer, by integrating state-invariant and state-dependent information, and predicting, by a prediction layer, future time-series data on the learned causal graph.
    Type: Application
    Filed: July 26, 2023
    Publication date: February 22, 2024
    Inventors: Zhengzhang Chen, Haifeng Chen, Liang Tong, Dongjie Wang