Patents by Inventor Yanqing Xu
Yanqing 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).
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Publication number: 20240132517Abstract: A compound represented by formula (I), or a pharmaceutically acceptable salt, solvate, active metabolite, polymorph, isotope marker, isomer or prodrug thereof. Also provided are a pharmaceutical composition comprising the same, and the use of the compound and the pharmaceutical composition in the preparation of a medicament for treating tyrosine kinase-mediated diseases. The provided compound and the pharmaceutical composition thereof have significant tyrosine kinase inhibitory activity, can overcome tumor drug resistance, can break through the blood-brain barrier, and further have excellent pharmacokinetic properties and excellent oral bioavailability, and can be administered in a small dose, thereby reducing treatment cost for patients and possible side effects; therefore, the provided compound and the pharmaceutical composition thereof have great application potentials.Type: ApplicationFiled: February 9, 2022Publication date: April 25, 2024Applicant: GOHARMONY THERAPEUTICS (SHENZHEN) CO., LTD.Inventors: Liguang DAI, Wei HU, Changxin DONG, Yanqing YANG, Wei WU, Wenlian XU
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Publication number: 20240128897Abstract: A power tool includes: a motor including a rotor and multiple phases of stator windings; and a control circuit configured to control the working state of the motor. The control circuit includes: a driver circuit including multiple switching elements; a controller electrically connected to at least the driver circuit and capable of outputting a control signal to change the conducting states of the multiple switching elements in the driver circuit; and a parameter detection module configured to detect a working parameter of the motor. In response to a braking signal, the controller sets an input parameter of the control circuit according to a preset parameter and the working parameter to control output power of the motor and/or output torque of the motor, thereby controlling the motor to brake.Type: ApplicationFiled: June 21, 2023Publication date: April 18, 2024Inventors: Wenjing Lu, Yanqing Xu, Guang Li
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Patent number: 11951104Abstract: The present invention provides an aripiprazole sustained-release microsphere and a preparation method therefor. The microsphere comprises aripiprazole and polylactide-glycolide. The microsphere is of a spherical reticular skeleton structure, with reticular micropores distributed in the spherical surface, and aripiprazole filled in the micropores. The average particle diameter of the microsphere is less than 20 ?m, and is suitable for a 5 gauge needle. The content of aripiprazole is 65%-80% of the total weight of the microsphere.Type: GrantFiled: June 8, 2018Date of Patent: April 9, 2024Assignee: ZHUHAI LIVZON MICROSPHERE TECHNOLOGY CO. LTD.Inventors: Bin Chen, Xia Yin, Yanqing Wang, Peng Xu, Yuda Yang, Miaoli Chen, Weilun Ye, Linyan Lv, Huijuan Xu, Wenqi Lu, Xiangsheng Kong, Xiaoman Jiang
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Publication number: 20240107950Abstract: A power-assisted working machine and mower. The mower includes a body including a traveling assembly and a drive motor for driving the traveling assembly; a handle device connected to the body and including an operating member, where the operating member includes a grip for a user to hold; and a connecting rod connected to the body. The mower further includes a motor parameter detection device configured to detect at least one of the rotor position and the working current of the drive motor; an angle detection device configured to detect an angle of inclination of a workplane of the mower relative to a horizontal plane; and a controller configured to estimate thrust applied to the handle device according to the rotor position and/or the working current and the angle of inclination.Type: ApplicationFiled: August 15, 2023Publication date: April 4, 2024Inventors: Yiwen Xia, Yanqing Xu, Yufei Ren, Haishen Xu
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Publication number: 20240099185Abstract: A walk-behind electric device includes a device body, a moving wheel, a moving motor, a power interface, and a control unit. The moving wheel is connected to the device body. The moving motor is configured to drive the moving wheel. The power interface is connected to a power supply so as to supply power to the moving motor. The control unit is configured to identify, according to device parameters of the walk-behind electric device, an auxiliary operation that a user wants to perform on the walk-behind electric device, where the auxiliary operation is at least partially positively correlated to at least one output parameter of the moving motor.Type: ApplicationFiled: September 27, 2022Publication date: March 28, 2024Inventors: Yiwen Xia, Yanqing Xu, Yufei Ren, Haishen Xu
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Publication number: 20240085436Abstract: The present invention provides a kit of a related marker for a central neurodegenerative disease and a detection method thereof. The kit uses a double antibody sandwich detection method, and can simultaneously detect 5 Alzheimer disease-related proteins in the same sample. An A microsphere labeled with a rabbit antibody is adopted, shaking is conducted in an incubation process, and an incubating agent, including polyol, a polymer, a nonionic surfactant and a chelating agent, is added. The aforementioned components cooperate with each other to achieve a long-term effect of maintaining suspension of the microspheres, so as to promote the reaction in the incubation process, reduce the formation of microsphere agglomeration and reduce non-specific binding. The Fc fragment of a detection antibody is removed, and thus the interference with a non-specific reaction is excluded.Type: ApplicationFiled: September 13, 2023Publication date: March 14, 2024Inventors: Yanqing ZHOU, Tao WANG, Chenhuai XU
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Publication number: 20230396199Abstract: A power tool includes a motor, a power supply device, a driver circuit, a parameter acquisition module, and a controller. The motor includes a stator and a rotor. The motor is configured to generate a reluctance torque. The driver circuit is electrically connected to the motor to drive the motor. The parameter acquisition module is configured to acquire a current of the motor, a rotational speed of the motor, and a position of the rotor. The controller is configured to: according to at least one of the current of the motor, the rotational speed of the motor, or the position of the rotor, dynamically adjust a current applied to the stator so that an included angle between a stator flux linkage of the motor and a rotor flux linkage of the motor ranges from 90° to 135°.Type: ApplicationFiled: August 24, 2023Publication date: December 7, 2023Inventors: Yanqing Xu, Dezhong Yang, Hongwei Wang
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Patent number: 11791756Abstract: A power tool includes a motor, a power supply device, a driver circuit, a parameter acquisition module, and a controller. The motor includes a stator and a rotor. The motor is configured to generate a reluctance torque. The driver circuit is electrically connected to the motor to drive the motor. The parameter acquisition module is configured to acquire a current of the motor, a rotational speed of the motor, and a position of the rotor. The controller is configured to: according to at least one of the current of the motor, the rotational speed of the motor, or the position of the rotor, dynamically adjust a current applied to the stator so that an included angle between a stator flux linkage of the motor and a rotor flux linkage of the motor ranges from 90° to 135°.Type: GrantFiled: September 20, 2021Date of Patent: October 17, 2023Assignee: Nanjing Chevron Industry Co., Ltd.Inventors: Yanqing Xu, Dezhong Yang, Hongwei Wang
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Publication number: 20230309443Abstract: A riding lawn mower includes: a walking assembly including a left walking motor and a right walking motor; a left operating member for generating a left operational amount; a right operating member for generating a right operational amount; a walking motor control module for controlling at least one of the left walking motor or the right walking motor. The walking motor control module includes: an input unit for generating a left reference speed and a right reference speed; a decoupling unit for generating a first velocity and a second velocity from the left reference speed and the right reference speed; a processing unit for independently obtaining a first processed velocity from the first velocity and obtaining a second processed velocity from the second velocity; and an output unit for generating a left target speed or a right target speed from the first processed velocity and the second processed velocity.Type: ApplicationFiled: June 2, 2023Publication date: October 5, 2023Inventors: Yanqing Xu, Dezhong Yang, Zhongyan Hou
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Publication number: 20230230343Abstract: An image processing method includes a first device extracting feature information of a to-be-processed image using a feature extraction network model; the first device identifying the extracted feature information to obtain identification information of the feature information; and the first device sending the feature information of the to-be-processed image and the identification information of the feature information to a second device. After receiving the feature information and the corresponding identification information that are sent by the first device, the second device selects a feature analysis network model corresponding to the identification information to process the received feature information.Type: ApplicationFiled: July 20, 2021Publication date: July 20, 2023Inventors: Yanqing Xu, Sihai Wang
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Publication number: 20230231503Abstract: A power tool includes a motor, a speed regulation mechanism, a driver circuit, and a control module. The motor includes a stator winding and a rotor. The speed regulation mechanism is at least used for setting a target rotational speed of the motor. The driver circuit is used for delivering electrical energy provided by a power supply device from a direct current bus to the motor, where the driver circuit includes multiple electronic switches connected between the power supply device and the motor. The control module is configured to calculate a voltage vector according to a measured rotational speed of the motor, a phase current of the stator winding, and the target rotational speed and overmodulate the voltage vector to output a pulse-width modulation (PWM) signal to the driver circuit. A per-unit value of an amplitude of the voltage vector ranges from 0 to 1.15.Type: ApplicationFiled: March 24, 2023Publication date: July 20, 2023Inventors: Aihua Xie, Yanqing Xu, Guang Li, Shuang Li
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Publication number: 20230125520Abstract: A power tool includes a housing, an electric motor, a driver circuit, a speed detection device, and a control device. The driver circuit is electrically connected to the electric motor to drive the electric motor to operate. The speed detection device is configured to acquire a rotational speed of the electric motor. The control device is connected to the speed detection device and the driver circuit and outputs a control signal to the driver circuit to control rotation of the electric motor. The control device is configured to acquire the rotational speed of the electric motor when the electric motor is in a start-up stage, obtain a rotational speed variation of the electric motor within a preset time based on the rotational speed of the electric motor, and turn off the electric motor when the rotational speed variation is less than a rotational speed variation threshold.Type: ApplicationFiled: September 6, 2022Publication date: April 27, 2023Inventors: Guang Li, Yanqing Xu, Yongkang Wu
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Publication number: 20220286018Abstract: A power tool includes a functional element, a motor, a power supply module, a driver circuit, and a control module. The control module is electrically connected to the driver circuit and configured to output a control signal to the driver circuit to control the driver circuit. The control module is configured to: in the case where the power tool is in a first operation stage, control the driver circuit in a first control mode so that a voltage of the motor varies with a rotor position of the motor in a square wave; and in the case where the power tool is in a second operation stage, control the driver circuit in a second control mode so that the voltage of the motor varies with the rotor position of the motor in a sine wave or a saddle wave.Type: ApplicationFiled: May 23, 2022Publication date: September 8, 2022Inventors: Zhen Xu, Dezhong Yang, Yanqing Xu
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Patent number: 11258389Abstract: A controller of a power tool is configured to, based on a sampled current of a motor of the power tool, output control signals that change with a change of a position of a rotor of the motor to control a drive circuit of the power tool such that an input voltage and/or a current of the motor changes approximately in a sine wave.Type: GrantFiled: September 9, 2020Date of Patent: February 22, 2022Assignee: Nanjing Chervon Industry Co., Ltd.Inventors: Yanqing Xu, Hongwei Wang, Xiaogang Ding, Tiantian Yin, Dezhong Yang, Xiubo Dai, Wenqi Zhen
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Publication number: 20220006406Abstract: A power tool includes a motor, a power supply device, a driver circuit, a parameter acquisition module, and a controller. The motor includes a stator and a rotor. The motor is configured to generate a reluctance torque. The driver circuit is electrically connected to the motor to drive the motor. The parameter acquisition module is configured to acquire a current of the motor, a rotational speed of the motor, and a position of the rotor. The controller is configured to: according to at least one of the current of the motor, the rotational speed of the motor, or the position of the rotor, dynamically adjust a current applied to the stator so that an included angle between a stator flux linkage of the motor and a rotor flux linkage of the motor ranges from 90° to 135°.Type: ApplicationFiled: September 20, 2021Publication date: January 6, 2022Inventors: Yanqing Xu, Dezhong Yang, Hongwei Wang
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Patent number: 10904448Abstract: A method, system, and computer program product controlling flash behavior of a camera during capture of image data. The method includes identifying a target object from among a plurality of objects in a current scene. The method further includes determining whether a distance to the target object is within an effective flash range associated with at least one flash module of an image capturing device. The method further includes measuring, via at least one camera, an ambient light level within the current scene and comparing the measured ambient light level to a predetermined flash light threshold. The method further includes, in response to determining the target object is within the effective flash range and the measured ambient level is less than the predetermined flash light threshold, triggering at least one flash module of the image capturing device to illuminate the current scene during capture of image data by the at least one camera.Type: GrantFiled: July 13, 2017Date of Patent: January 26, 2021Assignee: Motorola Mobility LLCInventors: Yin Hu Chen, Valeriy Marchevsky, Susan Yanqing Xu
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Publication number: 20200412286Abstract: A controller of a power tool is configured to, based on a sampled current of a motor of the power tool, output control signals that change with a change of a position of a rotor of the motor to control a drive circuit of the power tool such that an input voltage and/or a current of the motor changes approximately in a sine wave.Type: ApplicationFiled: September 9, 2020Publication date: December 31, 2020Inventors: Yanqing Xu, Hongwei Wang, Xiaogang Ding, Tiantian Yin, Dezhong Yang, Xiubo Dai, Wenqi Zhen
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Patent number: 10787377Abstract: In an apparatus for treating wastewater, e.g sewage water, the water passes through a standard treatment process stream to promote production of dissolved reactive phosphate ions (PO4). Iron (or aluminum) ions are generated by electrochemical means and added to the process stream at one or more locations to produce metal-P coagulant solids removed in part by pump-out, with the substantial remaining P removed by mineralization and filtration in a biological filter such as a sand filter or leach field. In another apparatus, the water passes through a standard aerobic treatment process stream to promote production of dissolved reactive phosphate ions. Iron (or aluminum) ions are generated by electrochemical means and added to the process stream at one or more locations to produce a flocculant of Fe—P minerals that are separated out by sedimentation, physical filtration or magnetic means.Type: GrantFiled: April 24, 2017Date of Patent: September 29, 2020Assignee: WATERLOO BIOFILTER SYSTEMS INC.Inventors: Edwin Craig Jowett, Yanqing Xu
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Patent number: 10728510Abstract: A method, a device, and a computer program product for background image replacement in image data. The method includes receiving, from at least one image sensor of a device, frame data. The device generates a first depth map based on the received frame data. The device generates first foreground image data and first background image data, based on the first frame data and the first depth map. The method further includes determining a least used color in the first foreground image data. The least used color is identified as a first background color. The method also includes generating modified frame data by replacing the first background image data with the first background color and storing the modified frame data to a memory of the device.Type: GrantFiled: April 4, 2018Date of Patent: July 28, 2020Assignee: Motorola Mobility LLCInventors: Yinhu Chen, Daniel Bloom, Susan Yanqing Xu, Weihua Sun
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Patent number: 10609355Abstract: A method, a system, and a computer program product for dynamically adjusting sampling of a depth map based on detected motion in a current scene. The method includes capturing real-time scan data at a first resolution by a first camera and a second camera of an image capturing device. The method further includes synchronizing a first plurality of frames of the real-time scan data to create a plurality of synchronized frames at a first frame rate. The method further includes analyzing the synchronized frames to determine whether motion exists. The method further includes, in response to determining motion exists: determining, based on the plurality of synchronized frames, a rate of motion within the current scene; and dynamically calculating a target resolution and a target frame rate for a real-time depth map. The method further includes generating a real-time depth map at the target resolution and target frame rate.Type: GrantFiled: October 27, 2017Date of Patent: March 31, 2020Assignee: Motorola Mobility LLCInventors: Yin Hu Chen, Valeriy Marchevsky, Susan Yanqing Xu