Patents by Inventor Lei Jia

Lei Jia 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: 20210286917
    Abstract: The present disclosure discloses a method for fast determining a time-delay stability margin of a power system, which focuses on three steps, i.e., Jordan standardization, Taylor separation and Schur simplification, to reconstruct a new time delay system and reduce the system dimension. In this method, firstly, a time delay model is Jordan standardized; further, Taylor expansion is applied in a process for separating state variables with time delay from stage variables without time delay; then, balanced model reduction is realized by Schur simplification; and finally, a WSCC 3-generator-9-bus power system with multiple delays will be used to validate the proposed method via several typical criteria.
    Type: Application
    Filed: August 29, 2016
    Publication date: September 16, 2021
    Inventors: Hongjie JIA, Chaoyu DONG, Yilang JIANG, Tao JIANG, Lei WANG
  • Publication number: 20210285858
    Abstract: The present disclosure discloses a reciprocating rock fracture friction-seepage characteristic test device and method. The test device includes an X-axis shear system, a Y-axis stress loading system, a Z-axis stress loading system, a servo oil source system, 5 a pore pressure loading system, and a host. The X-axis shear system includes an X-axis EDC controller, an upper shear box, a lower shear box, an X-axis left hydraulic cylinder, an X-axis right hydraulic cylinder, an X-axis left pressure head, an X-axis right pressure head, an X-axis left pressure sensor, an X-axis right pressure sensor, an X-axis displacement sensor, and an X-axis 10 displacement sensor. The pore pressure loading system includes an air cylinder, a pressure gauge, a pressure reducing valve, a fluid inlet pipeline, a fluid outlet pipeline, and a flowmeter.
    Type: Application
    Filed: March 9, 2021
    Publication date: September 16, 2021
    Inventors: Zhaohui LU, Yunzhong JIA, Jiren TANG, Yugang CHENG, Junping ZHOU, Lei ZHOU, Pei HE
  • Patent number: 11119664
    Abstract: Techniques manage a storage system. The techniques involve: in response to a first control unit of the storage system receiving an access request to a target storage area in the storage system, determining whether the target storage area is located in a first storage area or a second storage area; in response to the target storage area being located in the second set of storage areas, determining that a second control unit of the storage system processes the access request, the first control unit and the second control unit sharing the storage system; and updating an access state of the first control unit to the target storage area, the access state indicating access permission for the target storage area included in the first control unit. Such techniques can effectively reduce the number of CMI messages related to a stripe lock mechanism in a dual active SP.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: September 14, 2021
    Assignee: EMC IP Holding Company LLC
    Inventors: Lei Sun, Ruiyong Jia, Jianbin Kang, Jibing Dong, Yousheng Liu
  • Publication number: 20210281774
    Abstract: A video caption generating method is provided to a computer device. The method includes encoding a target video by using an encoder of a video caption generating model, to obtain a target visual feature of the target video, decoding the target visual feature by using a basic decoder of the video caption generating model, to obtain a first selection probability corresponding to a candidate word, decoding the target visual feature by using an auxiliary decoder of the video caption generating model, to obtain a second selection probability corresponding to the candidate word, a memory structure of the auxiliary decoder including reference visual context information corresponding to the candidate word, determining a decoded word in the candidate word according to the first selection probability and the second selection probability, and generating a video caption according to decoded word.
    Type: Application
    Filed: May 24, 2021
    Publication date: September 9, 2021
    Inventors: Wenjie PEI, Jiyuan ZHANG, Lei KE, Yuwing TAI, Xiaoyong SHEN, Jiaya JIA, Xiangrong WANG
  • Publication number: 20210280172
    Abstract: A voice response method, apparatus and intelligent device are disclosed. The method includes: receiving voice information sent by a user; determining whether the voice information contains a wake-up word; and if so, outputting a response voice according to a preset response rule. Thus, if there is a wake-up word in voice information received by the intelligent device, the intelligent device outputs a response voice according to a preset response rule. That is, after the user sends a wake-up word, the intelligent device outputs a voice to respond to the wake-up word. Therefore, the user can directly determine that the device has been woken up and can have a better experience.
    Type: Application
    Filed: April 10, 2018
    Publication date: September 9, 2021
    Inventors: Junyu Chen, Lei Jia, Yuanyuan Liu, Shouye Peng
  • Patent number: 11109300
    Abstract: An access control method and apparatus and communication system. The access control method includes: based on a mapping relationship between access attempt and access category, determining an access category to which an access attempt corresponds; performing access barring check based on the access category, so as to determine whether an access attempt to which the access category corresponds is barred; and transmitting a connection setup request message or a connection recovery request message to a network device when the access attempt is considered as allowed. Hence, an access category may be determined even in different scenarios, thereby achieving a unified access control mechanism in a simple and high-efficiency manner.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: August 31, 2021
    Assignee: FUJITSU LIMITED
    Inventors: Meiyi Jia, Lei Zhang, Xin Wang
  • Publication number: 20210261928
    Abstract: Provided are compositions comprising recombinant DNA polymerases that include amino acid substitutions, insertions, deletions, and/or exogenous features that confer modified properties upon the polymerase for enhanced single molecule sequencing. Such properties can include enhanced metal ion coordination, reduced exonuclease activity, reduced reaction rates at one or more steps of the polymerase kinetic cycle, decreased branching fraction, altered cofactor selectivity, increased yield, increased thermostability, increased accuracy, increased speed, increased readlength, and the like. Also provided are nucleic acids which encode the polymerases with the aforementioned phenotypes, as well as methods of using such polymerases to make a DNA or to sequence a DNA template.
    Type: Application
    Filed: March 3, 2021
    Publication date: August 26, 2021
    Inventors: Satwik Kamtekar, Lei Jia, Robin Emig, Erik Miller, Walter H. Lee, Molly He, Insil Park
  • Publication number: 20210256962
    Abstract: A method and apparatus for predicting a mouth-shape feature, and an electronic device are provided. A specific implementation of the method comprises: recognizing a phonetic posterior gram (PPG) of a phonetic feature; and performing a prediction on the PPG by using a neural network model, to predict a mouth-shape feature of the phonetic feature, the neural network model being obtained by training with training samples and an input thereof including a PPG and an output thereof including a mouth-shape feature, and the training samples including a PPG training sample and a mouth-shape feature training sample.
    Type: Application
    Filed: September 17, 2020
    Publication date: August 19, 2021
    Inventors: Yuqiang Liu, Tao Sun, Wenfu Wang, Guanbo Bao, Zhe Peng, Lei Jia
  • Publication number: 20210247142
    Abstract: A microchannel heat exchanger structure with a nozzle and a working method thereof. The microchannel heat exchanger structure with a nozzle, includes a first heat exchange portion, a second heat exchange portion, and at least one nozzle portion between the first heat exchange portion and the second heat exchange portion, the first heat exchange portion having a high-pressure heat exchange channel, a first micro-fin array being provided inside the high-pressure heat exchange channel, and the second heat exchange portion having a low-pressure heat exchange channel, the high-pressure heat exchange channel and the low-pressure heat exchange channel being in communication through at least one nozzle disposed in the nozzle portion. The heat exchanger structure has a good heat exchange effect and can achieve a better heat flux during heat exchange.
    Type: Application
    Filed: April 11, 2019
    Publication date: August 12, 2021
    Applicant: ENERGY RESEARCH INSTITUTE OF SHANDONG ACADEMY OF SCIENCES
    Inventors: Lian DUAN, Zhigang LIU, Mingming LV, Lei JIA
  • Publication number: 20210233518
    Abstract: A method and an apparatus for recognizing a voice are provided. The method may include: inputting a target voice into a pre-trained voice recognition model to obtain an initial text output by at least one recognition network in the voice recognition model, the recognition network including a plurality of preset types of processing layers, and at least one type of processing layer of the recognition network being obtained by training based on a voice sample in a preset direction interval; and determining a voice recognition result of the target voice, based on the initial text.
    Type: Application
    Filed: March 23, 2021
    Publication date: July 29, 2021
    Inventors: Xin LI, Bin HUANG, Ce ZHANG, Jinfeng BAI, Lei JIA
  • Publication number: 20210221793
    Abstract: Compounds are described, which are useful as stimulators of sGC, particularly NO-independent, heme-dependent stimulators. These compounds are also useful for treating, preventing or managing various disorders that are herein disclosed.
    Type: Application
    Filed: January 7, 2021
    Publication date: July 22, 2021
    Inventors: Timothy Claude Barden, James Edward Sheppeck, Glen Robert Rennie, Paul Allan Renhowe, Nicholas Robert Perl, Takashi Nakai, Ara Mermerian, Thomas Wai-Ho Lee, Joon Jung, Lei Jia, Karthik Iyer, Rajesh R. Iyengar, G-Yoon Jamie Im
  • Publication number: 20210210113
    Abstract: The present disclosure provides a method and apparatus for detecting a voice, relates to the fields of voice processing and deep learning technology. The method may include: acquiring a target voice; and inputting the target voice into a pre-trained deep neural network to obtain whether the target voice has a sub-voice in each of a plurality of preset direction intervals, the deep neural network being used to predict whether the voice has a sub-voice in each of the plurality of direction intervals.
    Type: Application
    Filed: March 22, 2021
    Publication date: July 8, 2021
    Inventors: Xin Li, Bin Huang, Ce Zhang, Jinfeng Bai, Lei Jia
  • Publication number: 20210201887
    Abstract: The present application discloses a method and an apparatus for training a speech spectrum generation model, as well as an electronic device, and relates to the technical field of speech synthesis and deep learning. A specific implementation is as follows: inputting a first text sequence into the speech spectrum generation model to generate an analog spectrum sequence corresponding to the first text sequence, and obtain a first loss value of the analog spectrum sequence according to a preset loss function; inputting the analog spectrum sequence corresponding to the first text sequence into an adversarial loss function model, which is a generative adversarial network model, to obtain a second loss value of the analog spectrum sequence; and training the speech spectrum generation model based on the first loss value and the second loss value.
    Type: Application
    Filed: March 18, 2021
    Publication date: July 1, 2021
    Inventors: Zhijie CHEN, Tao SUN, Lei JIA
  • Publication number: 20210158816
    Abstract: A method, apparatus, device, and storage medium for voice interaction. A specific embodiment of the method includes: extracting an acoustic feature from received voice data, the acoustic feature indicating a short-term amplitude spectrum characteristic of the voice data; applying the acoustic feature to a type recognition model to determine an intention type of the voice data, the intention type being one of an interaction intention type and a non-interaction intention type, and the type recognition model being constructed based on the acoustic feature of training voice data; and performing an interaction operation indicated by the voice data, based on determining that the intention type is the interaction intention type.
    Type: Application
    Filed: June 8, 2020
    Publication date: May 27, 2021
    Inventors: Xiaokong Ma, Ce Zhang, Jinfeng Bai, Lei Jia
  • Publication number: 20210155908
    Abstract: Provided are compositions comprising recombinant DNA polymerases that include amino acid substitutions, insertions, deletions, and/or exogenous features that confer modified properties upon the polymerase for enhanced single molecule sequencing. Such properties include increased resistance to photodamage, and can also include enhanced metal ion coordination, reduced exonuclease activity, reduced reaction rates at one or more steps of the polymerase kinetic cycle, decreased branching fraction, altered cofactor selectivity, increased yield, increased thermostability, increased accuracy, increased speed, increased readlength, and the like. Also provided are nucleic acids which encode the polymerases with the aforementioned phenotypes, as well as methods of using such polymerases to make a DNA or to sequence a DNA template.
    Type: Application
    Filed: September 18, 2020
    Publication date: May 27, 2021
    Inventors: Satwik Kamtekar, Lei Jia, Erik Miller
  • Publication number: 20210158823
    Abstract: According to embodiments of the disclosure, a method and an apparatus for processing a speech signal, and a computer-readable storage medium are provided. The method includes obtaining a set of speech feature representations of a speech signal received. The method also includes generating a set of source text feature representations based on a text recognized from the speech signal, each source text feature representation corresponding to an element in the text. The method also includes generating a set of target text feature representations based on the set of speech feature representations and the set of source text feature representations. The method also includes determining a match degree between the set of target text feature representations and a set of reference text feature representations predefined for the text, the match degree indicating an accuracy of recognizing of the text.
    Type: Application
    Filed: June 22, 2020
    Publication date: May 27, 2021
    Inventors: Chuanlei ZHAI, Xu CHEN, Jinfeng BAI, Lei JIA
  • Publication number: 20210158799
    Abstract: The disclosure provides a speech recognition method, a device and a computer-readable storage medium. The method includes obtaining a first voice signal collected from a first microphone in a microphone array and a second voice signal collected from a second microphone in the microphone array, the microphone array including at least two microphones, such as two, three or six microphones. The method further includes extracting enhanced features associated with the first voice signal and the second voice signal through a neural network, and obtaining a speech recognition result based on the enhanced features extracted.
    Type: Application
    Filed: August 10, 2020
    Publication date: May 27, 2021
    Inventors: Ce ZHANG, Bin Huang, Xin Li, Jinfeng Bai, Xu Chen, Lei Jia
  • Publication number: 20210151039
    Abstract: Embodiments of the present disclosure relate to a method and an apparatus for speech interaction, and a computer readable storage medium. The method may include determining text information corresponding to a received speech signal. The method also includes obtaining label information of the text information by labeling elements in the text information. In addition, the method further includes determining first intention information of the text information based on the label information. The method further includes determining a semantic of the text information based on the first intention information and the label information.
    Type: Application
    Filed: June 8, 2020
    Publication date: May 20, 2021
    Inventors: Zhen WU, Yufang WU, Hua LIANG, Jiaxiang GE, Xingyuan PENG, Jinfeng BAI, Lei JIA
  • Publication number: 20210142819
    Abstract: According to embodiments of the present disclosure, a method, apparatus, device, and computer readable storage medium for voice interaction are provided. The method includes: determining a text corresponding to the voice signal based on a voice feature of a received voice signal. The method further includes: determining, based on the voice feature and the text, a matching degree between a reference voice feature of an element in the text and a target voice feature of the element. The method further includes: determining a first possibility that the voice signal is an executable command based on the text. The method further includes: determining a second possibility that the voice signal is the executable command based on the voice feature.
    Type: Application
    Filed: June 8, 2020
    Publication date: May 13, 2021
    Inventors: Zhijian Wang, Jinfeng Bai, Sheng Qian, Lei Jia
  • Publication number: 20210127003
    Abstract: The present disclosure discloses an interactive voice-control method and apparatus, a device and a medium. The method includes: obtaining a sound signal at a voice interaction device and recognized information that is recognized from the sound signal; determining an interaction confidence of the sound signal based at least on at least one of an acoustic feature representation of the sound signal and a semantic feature representation associated with the recognized information; determining a matching status between the recognized information and the sound signal; and providing the interaction confidence and the matching status for controlling a response of the voice interaction device to the sound signal.
    Type: Application
    Filed: September 24, 2020
    Publication date: April 29, 2021
    Inventors: Jinfeng BAI, Chuanlei ZHAI, Xu CHEN, Tao CHEN, Xiaokong MA, Ce ZHANG, Zhen WU, Xingyuan PENG, Zhijian WANG, Sheng QIAN, Guibin WANG, Lei JIA