Patents by Inventor Zheng Liu

Zheng Liu 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: 20210107577
    Abstract: The present disclosure provides a zero moment point jitter processing method as well as an apparatus and a robot using the same. The method includes: obtaining left foot force information and right foot force information collected by sensors; calculating a first zero moment point and a second zero moment point of soles of two feet of a robot based on the left foot force information and the right foot force information; calculating a third zero moment point of the robot according to the first zero moment point and the second zero moment point; calculating a jitter amplitude of the third zero moment point within a preset period; and adjusting a position of the third zero moment point in response to the jitter amplitude being not larger than a predetermined jitter amplitude threshold. In this manner, the robot can eliminate zero moment point jitters within a certain amplitude.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 15, 2021
    Inventors: Chunyu Chen, Yizhang Liu, Ligang Ge, Xianwei Su, Zheng Xie, Youjun Xiong, Jianxin Pang
  • Patent number: 10979110
    Abstract: A cooperative precoding method, applied in a communication system comprising a coordinating device and multiple serving stations, is provided. The cooperative precoding method includes the following steps: the coordinating device obtaining multiple carrier frequency offset (CFO) parameters of the serving stations with respect to a user device; generating multiple cooperative encoded sequences; assigning the cooperative encoded sequences to the serving stations, respectively, according to an order of the plurality of CFO parameters; and the plurality of serving stations transmitting the cooperative encoded sequences, respectively, to the user device. Each cooperative encoded sequence is transmitted over multiple subcarriers.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: April 13, 2021
    Assignee: Realtek Semiconductor Corp.
    Inventors: Chih-Hsiu Zeng, Kwang-Cheng Chen, Der-Zheng Liu
  • Publication number: 20210105635
    Abstract: The disclosure discloses a method and device in a communication node for wireless communication. The communication node receives first information, and performs Q energy detections respectively in Q time sub-pools within a first sub-band, and if energy detected by each energy detection of the Q energy detections is lower than a first threshold, starts to transmit a first radio signal at a first time-instant; the first information is used to determine K candidate time-instant subsets; a target time-instant subset is one of the K candidate time-instant subsets, the first time-instant belongs to the target time-instant subset; a frequency-domain bandwidth of the first sub-band is used to determine the target time-instant subset out of the K candidate time-instant subsets, and frequency-domain resources occupied by the first radio signal belong to the first sub-band. The disclosure can improve access fairness.
    Type: Application
    Filed: December 16, 2020
    Publication date: April 8, 2021
    Applicant: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY COMPANY LIMITED
    Inventors: Zheng LIU, Xiaobo ZHANG, Lin YANG
  • Patent number: 10973054
    Abstract: Disclosed are a wireless transceiver and a wireless communication method capable of reducing signal interference originated from a neighboring channel, in which the difference between the central frequency of the neighboring channel and the central frequency of a target channel is less than a frequency difference threshold and/or the energy of an interference signal of the neighboring channel is greater than a signal energy threshold.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: April 6, 2021
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventor: Der-Zheng Liu
  • Publication number: 20210099984
    Abstract: A method and a device in a communication node used for wireless communications is disclosed in the present disclosure. The communication node first receives first information and second information; and transmits a first radio signal in a first time window; and then transmits a second radio signal; the first information is used to determine a target time window, the second radio signal occupies a second time window in time domain, and the second information is used to determine at least one of whether the second time window belongs to the target time window or a relative position relationship between the second time window and the target time window; an end of the first time window is earlier than a start of the target time window. The present disclosure helps improve the utilization ratio of resources in Grant-Free transmission.
    Type: Application
    Filed: August 10, 2020
    Publication date: April 1, 2021
    Applicant: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY COMPANY LIMITED
    Inventors: Zheng LIU, Xiaobo ZHANG
  • Publication number: 20210097079
    Abstract: The present disclosure relates to a method, apparatus and system for determining accessible paths between two nodes. According to the method of the present disclosure, an adjacency matrix of a graph, which includes a plurality of points and edges connecting the plurality of points, is first established; then, search is made for an accessible path that can reach a destination from a starting point based on the adjacency matrix. Especially, a termination condition for the searching is set based on an already-sought path during the searching, and the corresponding search is terminated in response to the termination condition being met during the searching. With the present disclosure, it may substantially reduce repeated traversal, obvious reduce the time taken to search for accessible paths between two nodes, and significantly improve the efficiency in searching for the accessible path.
    Type: Application
    Filed: March 29, 2019
    Publication date: April 1, 2021
    Applicant: NEC CORPORATION
    Inventors: Zheng PAN, Wenjuan WEI, Chunchen LIU
  • Publication number: 20210087211
    Abstract: It discloses a polyether polyols for preparing flexible polyurethane foam, and a preparation method and application thereof. The method comprises the following steps: (1) carrying out a reaction on phosphorus oxychloride, epichlorohydrin, a first acidic catalyst and an inert solvent in a first microchannel reactor to obtain a chloroalkoxy phosphorus compound; (2) carrying out a reaction on the chloroalkoxy phosphorus compound, glycidol, a second acidic catalyst and an inert solvent in a second microchannel reactor to obtain a hydroxy compound; (3) carrying out a ring-opening reaction on the hydroxy compound, epoxy vegetable oil, a basic catalyst and an inert solvent in a third microchannel reactor to obtain a vegetable oil polyol; and (4) carrying out an addition polymerization reaction on the vegetable oil polyol, propylene oxide and an inert solvent in a fourth microchannel reactor to obtain the polyether polyols for preparing flexible polyurethane foam.
    Type: Application
    Filed: December 1, 2020
    Publication date: March 25, 2021
    Inventors: Kai GUO, Zheng FANG, Wei HE, Ning ZHU, Xin HU, Jiangkai QIU, Chengkou LIU, Jingjing MENG, Jindian DUAN, Pingkai OUYANG
  • Publication number: 20210087918
    Abstract: An active control method and control device for wellbore pressure in the open-cycle drilling of marine natural gas hydrates comprises following steps: (1) optimized design of drilling parameter; (2) carry out open-cycle drilling according to the designed drilling parameters; (3) utilize the APWD to monitor the bottom-hole temperature and the bottom-hole pressure in real time for real-time correction of the wellbore annulus temperature and pressure calculation models; determine whether a hydrate decomposition has occurred in the annulus and then infer whether a shallow gas intrusion has occurred in the bottom hole; (4) Intelligent active control: control and adjust the mixed density of drilling fluid, the injection displacement of drilling fluid as well as the injection temperature of drilling fluid and the pump pressure in wellhead automatically during the well killing based on the real-time treatment results of the computer terminal for the signal fluctuations detected by the APWD.
    Type: Application
    Filed: December 3, 2020
    Publication date: March 25, 2021
    Inventors: Zhiyuan Wang, Jianbo Zhang, Baojiang Sun, Wenqiang Lou, Xiaohui Sun, Zheng Liu, Shikun Tong
  • Publication number: 20210089504
    Abstract: A database is selected from a plurality of databases included in the distributed database cluster. A shard map of the database is acquired, wherein the shard map includes a distribution of a plurality of shards on the plurality of nodes, and one or more nodes of the plurality of nodes each includes at least one shard of an old version of the database to be upgraded to a new version. A sustainable serviceability of the database corresponding to each of the one or more nodes is predicted according to the shard map based on the assumption that the at least one shard of each of the one or more nodes has been upgraded from the old version to the new version.
    Type: Application
    Filed: September 25, 2019
    Publication date: March 25, 2021
    Inventors: Jing Jing Liu, Yun Zheng, Jing Wang, Zan Zhou, Peng Hui Jiang
  • Publication number: 20210088523
    Abstract: Disclosed herein are methods of detecting circulating tumor cells by detecting one or more of pan-cytokeratin, epidermal growth factor receptor, human epidermal growth factor receptor 2, mucin 1, plastin 3, circulating cancer associated fibroblast and programmed death-ligand using fiber-optic array scanning technology and automated digital microscopy. The methods disclosed herein can also be used for cancer diagnosis, prognosis, and in the design of cancer treatments.
    Type: Application
    Filed: April 2, 2020
    Publication date: March 25, 2021
    Inventors: Xiaohe Liu, Lidia C. Sambucetti, Peter B. Madrid, Zheng Ao
  • Publication number: 20210090375
    Abstract: A computer-implemented method comprises: committing a transaction amount t of a transaction with a commitment scheme to obtain a transaction commitment value T, the commitment scheme comprising at least a transaction blinding factor r_t; encrypting a combination of the transaction blinding factor r_t and the transaction amount t with a public key PK_B of a recipient of the transaction; and transmitting the transaction commitment value T and the encrypted combination to a recipient node associated with the recipient for the recipient node to verify the transaction.
    Type: Application
    Filed: December 2, 2020
    Publication date: March 25, 2021
    Inventors: Jiahui CUI, Baoli MA, Zheng LIU, Wenbin ZHANG, Huanyu MA
  • Patent number: 10957064
    Abstract: The present teaching relates to method, system, medium, and implementation of determining depth information in autonomous driving. Stereo images are first obtained from multiple stereo pairs selected from at least two stereo pairs. The at least two stereo pairs have stereo cameras installed with the same baseline and in the same vertical plane. Left images from the multiple stereo pairs are fused to generate a fused left image and right images from the multiple stereo pairs are fused to generate a fused right image. Disparity is then estimated based on the fused left and right images and depth information can be computed based on the stereo images and the disparity.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: March 23, 2021
    Assignee: PLUSAI CORP
    Inventors: Anurag Ganguli, Timothy Patrick Daly, Jr., Hao Zheng, David Wanqian Liu
  • Patent number: 10958869
    Abstract: A system, device and method of video frame interpolation. In one aspect, a frame interpolation system receive candidate interpolated frame and difference data based on a first frame and second frame. It identifies a high-error region and one or more increasingly lower-error regions of the candidate interpolated frame based on the difference data and applies multiple successive stages of a refinement neural network to the regions of the candidate interpolated frame, from highest- to lowest-error. At each stage, the results of the previous stage are combined with the next lower-error region before being refined by the current stage. In some aspects, the system also generates the candidate interpolated frame and the difference data using a flow estimation neural network.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: March 23, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhixiang Chi, Rasoul Mohammadi Nasiri, Zheng Liu, Jin Tang
  • Publication number: 20210082031
    Abstract: An order processing method and device, a server, and a storage medium, includes determining an actual volume of at least one item associated with an order, wherein the actual volume of each item is determined on the basis of a historical maximum storage quantity of a given item in a goods location and the volume of the goods location, or on the basis of a storage quantity of a given item in a transfer box and the volume of the transfer box. On the basis of the actual volume of the at least one item associated with the order, determining a total volume of the at least one item associated with the order; and on the basis of the total volume of the at least one item associated with the order and the volume of the transfer box, allocating transfer boxes for the order.
    Type: Application
    Filed: June 19, 2019
    Publication date: March 18, 2021
    Applicant: BEIJING GEEKPLUS TECHNOLOGY CO., LTD.
    Inventors: Kai LIU, Zhaoming BAI, Zheng WANG
  • Publication number: 20210083976
    Abstract: A method for content caching in information centric network virtualization includes receiving, by a first node, a first data packet; in response to a cache distance identifier hop of the first data packet being less than a preset maximum cache distance, setting hop=hop+1 and sending the first data packet to a next node by the first node; in response to the hop being not less than the preset maximum cache distance and there being available cache space in the first node, setting hop=0, storing the first data packet, and sending the first data packet to the next node by the first node. The node determines whether to cache a data packet based on the cache distance identifier of the data packet, which comprehensively considers the cache energy consumption caused by caching the data packet in the node and the transmission energy consumption caused by transmission of the data packet in the link, thereby effectively reducing the total energy consumption of the network.
    Type: Application
    Filed: March 22, 2019
    Publication date: March 18, 2021
    Inventors: Qilie Liu, Xiaoxiao Wang, Liqiang Zhuge, Yanyu Wang, Zheng Li, Bin Cao, Jingcheng Liu, Fengfan Yang
  • Patent number: 10951305
    Abstract: An orbiting multiple access transceiver communicates with terrestrial mobile stations which are also capable of communicating with terrestrial base stations. The multiple access transceiver is configured to sample a signal when a terrestrial mobile station of interest is not transmitting to produce a sample signal. The sample signal may be processed to produce an out-of-phase signal that may be applied to a signal when the terrestrial mobile station of interest is transmitting to produce a clearer signal from the terrestrial mobile station of interest.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: March 16, 2021
    Assignee: Lynk Global, Inc.
    Inventors: Tyghe Robert Speidel, Kevin Jackson, Zheng Liu, Andrew J. Gerber
  • Patent number: 10952160
    Abstract: Embodiments of the present disclosure disclose a method for determining a frequency resource, and an apparatus. The method includes: first determining, by user equipment (UE), a power headroom report; and subsequently sending, by the UE, the power headroom report (PHR) to a base station in a random access process, where the power headroom report may be carried by a related information segment of message 3 (Message 3) sent by the UE to the base station. According to the solutions provided in the present disclosure, a base station can obtain, in a timely manner, a basis for performing scheduling configuration when UE performs current uplink data transmission, and can more accurately configure power control and scheduling information for the UE. This avoids allocating the UE a channel that exceeds an uplink transmission capability of the UE, and thereby avoids an uplink bandwidth waste.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: March 16, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yubo Yang, Chao Luo, Zheng Liu
  • Publication number: 20210072586
    Abstract: A manufacturing method of a flexible display, a flexible display, and a display device are provided. The method comprises: forming a metal lead on a flexible substrate; bending the flexible substrate and the metal lead; and forming a conductive film layer on the metal lead, which covers at least a bent part of the metal lead.
    Type: Application
    Filed: January 4, 2018
    Publication date: March 11, 2021
    Inventor: Zheng LIU
  • Publication number: 20210071916
    Abstract: The disclosed subject matter includes an active control alternating-direct flow hybrid mechanical cryogenic system, and relates to the field of cryogenic refrigeration technologies. The active control alternating-direct flow hybrid mechanical cryogenic system includes a main compressor, a Stirling cold finger, an intermediate heat exchanger, a pulse tube cold finger, a first dividing wall type heat exchanger, a final precooled heat exchanger, a second dividing wall type heat exchanger, and an evaporator that are communicated successively, where the second dividing wall type heat exchanger is connected to the evaporator through a second connecting pipeline, and a throttling element is disposed on the second connecting pipeline; a pulse tube cold head of the pulse tube cold finger is communicated with the final precooled heat exchanger through a cold chain; and a check valve is disposed on the intermediate heat exchanger.
    Type: Application
    Filed: December 16, 2019
    Publication date: March 11, 2021
    Applicant: Shanghai Institute of Technical Physics, Chinese Academy of Sciences
    Inventors: Shaoshuai Liu, Yinong Wu, Zhenhua Jiang, Lei Ding, Haifeng Zhu, Baoyu Yang, Xiaoping Qu, Zhi Lu, Zheng Huang, Peng Zhao
  • Patent number: D915947
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: April 13, 2021
    Assignee: Ninebot (Beijing) Tech Co., Ltd.
    Inventors: Zheng Jin, Lei Liu