Patents by Inventor Chi Zhang

Chi 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).

  • Patent number: 11113830
    Abstract: Embodiments of the present disclosure are directed to a method for generating simulated point cloud data, a device, and a storage medium. The method includes: acquiring at least one frame of point cloud data collected by a road collecting device in an actual environment without a dynamic obstacle as static scene point cloud data; setting, according to set position association information, at least one dynamic obstacle in a coordinate system matching the static scene point cloud data; simulating in the coordinate system, according to the static scene point cloud data, a plurality of simulated scanning lights emitted by a virtual scanner located at an origin of the coordinate system; and updating the static scene point cloud data according to intersections of the plurality of simulated scanning lights and the at least one dynamic obstacle to obtain the simulated point cloud data comprising point cloud data of the dynamic obstacle.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: September 7, 2021
    Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Feilong Yan, Jin Fang, Tongtong Zhao, Chi Zhang, Liang Wang, Yu Ma, Ruigang Yang
  • Patent number: 11109444
    Abstract: This application provides a wireless communication method performed by a terminal or a chip of the terminal, and the method includes: receiving higher layer signaling from a base station, where the higher layer signaling is used to configure a first time resource and a first frequency resource that can be used for uplink transmission without scheduling; and receiving downlink control information indicating a format of a slot, where the format indicates a transmission direction of a symbol in the slot, and an uplink symbol in the slot is a time resource that can be used for the uplink transmission without scheduling. In the method, a time resource that is dynamically allocated by the base station to the terminal via the downlink control information and that can be used for uplink transmission without scheduling is received.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: August 31, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yafei Wang, Yi Wang, Chi Zhang
  • Patent number: 11095126
    Abstract: Provided is an anti-islanding protection system. The system is applied to a low-voltage distributed generation resource (DGR) and includes a box, a reverse power protector, a protection module and an output controller. The reverse power protector has an end connected to a first current transformer and has another end connected to the output controller. The reverse power protector is configured to provide reverse power protection for the low-voltage DGR. The output controller has an end connected to the protection module and the reverse power protector and has another end connected to a grid-connection switch of the low-voltage DGR. The output controller is configured to control the grid-connection switch to turn off when reserve power is detected. The protection module has an end connected to a second current transformer and has another end connected to the output controller.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: August 17, 2021
    Assignees: State Grid Zhejiang Electric Power Co., Ltd. Taizhou Power Supply Company, State Grid Corporation of China
    Inventors: Xiaoping Fu, Wenqi He, Chi Zhang, Dongbo Zhang, Daojian Hong, Yuande Zheng, Minzhi Chen, Mingxu Chen, Zhen Huang, Guode Ying
  • Patent number: 11093744
    Abstract: Provided is a method for determining types of ice-and-snow cover. The method includes: determining typical RGB component values of typical types of ice-and-snow cover, establishing a one-to-one corresponding relation between the typical types of ice-and-snow cover and the typical RGB component values, and establishing a database of typical types of ice-and-snow cover; and extracting RGB values of an ice-and-snow covering point from an ice-and-snow cover image of a measurement area, comparing RGB component values of the ice-and-snow covering point with typical RGB component values in the database of typical types of ice-and-snow cover, and determining the type of ice-and-snow cover of the measurement area according to a comparison result.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: August 17, 2021
    Inventors: Longji Li, Qingfeng Wen, Yongfu Wang, Xiaoguang Wang, Yuyan Man, Xiaoguang Xi, Chi Zhang, Wei Fan
  • Patent number: 11089552
    Abstract: An uplink power control method and a communications device are described. The method includes receiving, by a terminal device, power control indication information sent by a network device. The power control indication information indicates a first power offset set, and the first power offset set is any one of at least two power offset sets. The method further includes receiving, by the terminal device, a transmit power control (TPC) command sent by the network device. The TPC indicates a first offset in the first power offset set. The method includes determining, by the terminal device, uplink transmit power based on the first offset. Impact of cross interference is considered in determining the uplink transmit power. Thus, the method can meet requirements of future mobile communications and improve system performance.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: August 10, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yafei Wang, Chi Zhang, Zhengwei Gong
  • Publication number: 20210241120
    Abstract: Systems and methods are provided for implementing machine learning techniques to distinguish a real identity, such as a set of identity information representing a real person, from a synthetic identity that may include portions of real identity information. Attributes regarding a target identity derived from a variety of retrieved data records may be provided as input to multiple machine learning models that generate scores associated with the potential of the target identity being synthetic. The scores may be combined and compared to a threshold to generate a determination of whether the target identity is a synthetic identity.
    Type: Application
    Filed: January 28, 2021
    Publication date: August 5, 2021
    Inventors: Kevin Chen, Mason L. Carpenter, Yi He, Hua Li, Zhixuan Wang, Christer DiChiara, Sophie Liu, Eric Haller, Shanji Xiong, Honghao Shan, Liang Lin, Brian Duke, Chi Zhang, Doris Wang, Seth Kressin
  • Patent number: 11082975
    Abstract: Embodiments of this application disclose a power control method, and belong to the field of wireless communications technologies. The method includes: receiving, by a terminal device, signaling from a radio access network device; learning, by the terminal device based on the signaling, of a slot of power control information required by the terminal device to perform uplink sending; and obtaining, by the terminal device in the slot of the power control information required for uplink sending, the power control information required for uplink sending, so that the terminal device dynamically obtains uplink power control information of the terminal device without being based on a static uplink-downlink subframe configuration in the prior art.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: August 3, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yafei Wang, Chi Zhang, Zhengwei Gong
  • Patent number: 11082974
    Abstract: Embodiments of this application provide a communication processing method. A time domain location of a time domain resource configuration that is in a first wireless communications system and that is aligned with a time domain resource configuration in a second wireless communications system is determined based on a time offset, and a terminal performs data transmission with the first wireless communications system at the determined time domain location. In this way, interference with the second communications system is avoided.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: August 3, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yafei Wang, Xiaojun Ma, Chi Zhang
  • Publication number: 20210232799
    Abstract: Provided is a method for determining types of ice-and-snow cover. The method includes: determining typical RGB component values of typical types of ice-and-snow cover, establishing a one-to-one corresponding relation between the typical types of ice-and-snow cover and the typical RGB component values, and establishing a database of typical types of ice-and-snow cover; and extracting RGB values of an ice-and-snow covering point from an ice-and-snow cover image of a measurement area, comparing RGB component values of the ice-and-snow covering point with typical RGB component values in the database of typical types of ice-and-snow cover, and determining the type of ice-and-snow cover of the measurement area according to a comparison result.
    Type: Application
    Filed: September 21, 2018
    Publication date: July 29, 2021
    Inventors: Longji LI, Qingfeng WEN, Yongfu WANG, Xiaoguang WANG, Yuyan MAN, Xiaoguang XI, Chi ZHANG, Wei FAN
  • Publication number: 20210234030
    Abstract: A heterojunction semiconductor device comprises a substrate; a second barrier layer is disposed on the second channel layer and a second channel is formed; a trench gate structure is disposed in the second barrier layer; the trench gate structure is embedded into the second barrier layer and is composed of a gate medium and a gate metal located in the gate medium; an isolation layer is disposed in the second channel layer and separates the second channel layer into an upper layer and a lower layer; a first barrier layer is disposed between the lower layer of the second channel layer and the first channel layer and a first channel is formed; a bottom of the metal drain is flush with a bottom of the first barrier layer; and a first metal source is disposed between the second metal source and the first channel layer.
    Type: Application
    Filed: October 21, 2019
    Publication date: July 29, 2021
    Inventors: Weifeng SUN, Siyang LIU, Sheng LI, Chi ZHANG, Xinyi TAO, Ningbo LI, Longxing SHI
  • Publication number: 20210225246
    Abstract: The present disclosure relates to a display method of a display panel, The display method may include obtaining original luminance of three single color subpixels in each of the pixel units based on an image to be displayed; obtaining luminance compensation values of the three single color subpixels that need to be color compensated at a time of obtaining the luminance of the mixed color subpixel as the first substitute luminance; calculating luminance of the mixed color produced by the three single color subpixels in the pixel unit respectively based on each of the luminance of the three single color subpixels after color compensation; and setting input luminance of the single color subpixel having the smallest luminance of the mixed color as 0, and obtaining actual luminance of the other single color subpixels and the mixed color subpixel.
    Type: Application
    Filed: February 19, 2020
    Publication date: July 22, 2021
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongxu Han, Chi Zhang, Tieshi Wang, Zhongyuan Wu, Yongqian Li, Jinxia Hu
  • Publication number: 20210218693
    Abstract: A method, apparatus, electronic device and medium for transmitting a live message are provided. An embodiment of the method executed by a client end may include: detecting periodically a status of a persistent connection with the service end; and in response to detecting that the persistent connection is in a disconnected status, re-establishing the persistent connection with the service end, and pulling a first-type message issued during disconnection of the persistent connection from the service end.
    Type: Application
    Filed: March 29, 2021
    Publication date: July 15, 2021
    Inventor: Chi ZHANG
  • Patent number: 11064498
    Abstract: A resource allocation method and an apparatus in a communications system are provided. A terminal receives resource allocation indication information, where the resource allocation indication information is used to determine a subband corresponding to an allocated resource. The terminal receives second configuration information, where the second configuration information indicates one of a plurality of configurations of the first frequency domain resource unit size corresponding to the subband. And the terminal determines a size of a first frequency domain resource unit corresponding to the subband based on first configuration information and the second configuration information, where the first configuration information includes a correspondence between the subband and a plurality of configurations of the first frequency domain resource unit size.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: July 13, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Ming Wu, Chi Zhang, Yueying Zhao, Yuanjie Li
  • Publication number: 20210206703
    Abstract: Processes, catalysts and systems for preparing a composition comprising aliphatic, olefinic, cyclic and/or aromatic hydrocarbons of seven or greater carbon atoms per molecule are provided.
    Type: Application
    Filed: December 14, 2018
    Publication date: July 8, 2021
    Applicant: INV NYLON CHEMICALS AMERICAS, LLC
    Inventors: William M. CROSS, JR., Daniel Travis SHAY, Rui Chi ZHANG, Feng Hao ZHANG, Fang ZHANG
  • Publication number: 20210206791
    Abstract: Disclosed are methods of selective cysteine and selenocysteine modification on peptide/protein molecules under physiologically relevant conditions. The methods feature several advantages over existing methods of peptide modification, such as specificity towards thiols and selenols over other nucleophiles (e.g., amines, hydroxyls), excellent functional group tolerance, and mild reaction conditions, including completely aqueous reaction conditions. Also disclosed are methods of preparing palladium complexes in the presence of oxygen.
    Type: Application
    Filed: March 2, 2017
    Publication date: July 8, 2021
    Inventors: Stephen L. Buchwald, Bradley L Pentelute, Chi Zhang
  • Publication number: 20210211124
    Abstract: A gate driver circuit for driving a gate-controlled switching device comprises a voltage monitor circuit portion arranged to produce a first value that is dependent on a time derivative (dv/dt) of a voltage applied across the gate-controlled switching device. A current monitor circuit portion is arranged to produce a second value that is dependent on a time derivative (di/dt) of a current through the gate-controlled switching device. A compensator is arranged to receive an alternating input signal (PWMref), the first value, and the second value, wherein the compensator modulates a magnitude and transition profile of the alternating input signal (PWMref) in response to the respective time derivatives of the voltage and the current, thereby generating a modulated control signal (PWMN). The gate driver circuit supplies the modulated control signal (PWMN) to the gate terminal of the gate-controlled switching device.
    Type: Application
    Filed: October 6, 2020
    Publication date: July 8, 2021
    Inventors: Sebastian Pedro ROSADO, Chi ZHANG
  • Patent number: 11057464
    Abstract: A computing system may determine that first data was copied from a first application to a buffer of a first computing environment, and that the first data was received by a second application in a second computing environment. The computing system may identify second data copied from the first application to the buffer and, in response to the second data being copied from the first application to the buffer and based at least in part on the second application having received the first data, may cause the second data to be transferred from the buffer to the second computing environment. The computing system may further evaluate the second data to determine whether it includes potentially private information, and may cause the second data to be transferred to the second computing environment based at least in part on the second data being free of potentially private information.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: July 6, 2021
    Assignee: Citrix Systems, Inc.
    Inventors: Daowen Wei, Jian Ding, Hengbo Wang, Sheng-Chi Zhang
  • Publication number: 20210203236
    Abstract: An efficient control method for an isolated multilevel DC/DC resonant converter achieves a wide output voltage range with a narrow device switching frequency range, relative to the output voltage range and the device switching frequency range of the prior art. At any given time, a control circuit selects one of three different modulation schemes to operate the primary-side switching devices of the resonant converter based on at least one of output voltage, output current, input signal, and one or more external control signals. Together with a selected device switching frequency, the three modulation schemes generate different voltage waveforms to a primary-side transformer, which are coupled to the secondary-side to provide different output voltages.
    Type: Application
    Filed: March 16, 2021
    Publication date: July 1, 2021
    Inventors: Chi Zhang, Peter Barbosa
  • Publication number: 20210201220
    Abstract: A method and system for ecological operation of total phosphorus (TP) export of a cascade hydropower station are provided. The method includes: integrating total power generation and TP export of the cascade hydropower station into a single operation objective, and obtaining an operation objective under different weight ratios; optimizing the obtained operation objective; and obtaining a water level operation process corresponding to total power generation and TP export under the current operation objective through the optimized operation objective. The present invention alleviates an ecological and environmental problem caused by the construction of the hydropower station from a water quality mechanism, and can be widely used, for example, in the ecological optimal operation of cascade hydropower stations in a river basin.
    Type: Application
    Filed: April 28, 2020
    Publication date: July 1, 2021
    Inventors: Yu LI, Jiahui DENG, Bo XU, Wei DING, Huicheng Zhou, Chi Zhang
  • Publication number: 20210186634
    Abstract: Systems, methods, and tangibly-implemented software instructions for supporting a teleoperated surgical system (TSS). A surgical input that includes monitored events of the TSS, is received. A current stage of the surgical procedure is autonomously determined based on the surgical input. A call for surgeon assistance may be detected, in response to which context-relevant assistance may be provided to a surgeon console of the TSS, the context-relevant assistance being stage-synchronized with the surgical procedure.
    Type: Application
    Filed: December 29, 2020
    Publication date: June 24, 2021
    Inventors: Anthony M. Jarc, Chi Zhang