Patents by Inventor Yidong Chen
Yidong 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).
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Patent number: 11935137Abstract: A method for distributing an equity reward for federated learning based on an equity theory includes the following steps: applying Adams' equity theory to federated learning, analyzing, by a participant, all factors invested in a federated task comprehensively, then giving an expected reward for this task, calculating, by the task publisher, the reputation of the participant; participating, by the participant, in each round of a training task using a local data to evaluate data contribution, model contribution, and a waiting-time allowance of the participant, then combining contribution results of the three factors to evaluate the contribution of the participant; after a global model converges, dynamically adjusting weights of the three factors according to an objective function of the equity reward, with a goal that an actual reward of the participant is as close as possible to the expected reward, and obtaining and distributing the actual reward of the participant.Type: GrantFiled: July 24, 2023Date of Patent: March 19, 2024Assignee: BEIJING JIAOTONG UNIVERSITYInventors: Wei Wang, Guorong Chen, Pengrui Liu, Xiaoting Lyu, Xiangrui Xu, Chao Li, Li Duan, Dawei Zhang, Jiqiang Liu, Yi Jin, Yidong Li
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Patent number: 11581831Abstract: The present disclosure discloses a method for braking a permanent magnet synchronous motor and a related device. The method is applied to an electronic speed controller and includes: receiving a signal for braking the permanent magnet synchronous motor sent by a flight controller; sending a first control signal to the permanent magnet synchronous motor, the first control signal being used to control the permanent magnet synchronous motor to decrease its rotational speed to a preset rotational speed range within a first preset time period; and after the first preset time period ends, sending a second control signal to the permanent magnet synchronous motor, the second control signal being used to control the permanent magnet synchronous motor to stop rotating within a second preset time period. According to the method, consistency of shutdown of multiple motors is ensured, and use experience of a drone is improved.Type: GrantFiled: May 17, 2019Date of Patent: February 14, 2023Assignee: AUTEL ROBOTICS CO., LTD.Inventors: Shizhi Yan, Yidong Chen
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Patent number: 11501649Abstract: This application discloses a drone control method and device and a drone and pertains to the technical field of drone control. The method includes: monitoring a running status of each power motor in a drone; determining according to the running status of each power motor whether the drone is in a crashed state; and controlling the drone to alarm when determining that the drone is in the crashed state. The drone control method and device and the drone can rapidly locate a crashed drone, greatly increasing the probability of finding back the crashed drone.Type: GrantFiled: October 28, 2019Date of Patent: November 15, 2022Assignee: AUTEL ROBOTICS CO., LTD.Inventors: Yidong Chen, Xiangxi Pan
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Publication number: 20220200490Abstract: The present application relates to the technical field of motor control, and provides a motor control method and system. The motor control method includes: each driving chip receives state information fed back by a sensor corresponding to the driving chip; when the driving chip receives the state information, a processor receives the state information; the driving chip processes the state information to obtain a first control signal, and the processor processes the state information to obtain a second control signal; and at least two of a plurality of driving chips drive, according to the first control signals and the second control signals corresponding to the driving chips, motors corresponding to the driving chips for linkage.Type: ApplicationFiled: August 12, 2019Publication date: June 23, 2022Applicant: SHENZHEN ZHAOWEI MACHINERY & ELECTRONICS CO., LTD.Inventors: Yidong CHEN, Zijian LEI, Ping LI
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Patent number: 11309768Abstract: The present disclosure provides a motor and a motor fixing structure. A first conductive terminal is disposed on the motor, a lead of the motor being electrically connected to an external device through the first conductive terminal, thereby simplifying a manner of connection. When the motor fails, it is only necessary to disconnect the electrical connection between the first conductive terminal and the external device, so that the motor can be rapidly detached without any auxiliary tool, thereby simplifying operations of detaching and mounting a motor and improving the efficiency of replacing a motor.Type: GrantFiled: September 11, 2019Date of Patent: April 19, 2022Assignee: AUTEL ROBOTICS CO., LTD.Inventors: Wei Sun, Dongdong Luo, Wenbing Su, Yidong Chen
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Publication number: 20210256253Abstract: A method of image-to-document conversion based on optical character recognition (OCR) includes obtaining an image to be converted into a target document, and performing layout segmentation on the image according to image content of the image, to obtain n image layouts, each of the n image layouts corresponding to a content type, and n being a positive integer. The method also includes, for each of the n image layouts, processing image content in the respective image layout according to the content type corresponding to the respective image layout, to obtain converted content corresponding to the respective image layout. The method further includes adding the converted content corresponding to the n image layouts to an electronic document, to obtain the target document.Type: ApplicationFiled: May 6, 2021Publication date: August 19, 2021Applicant: Tencent Technology (Shenzhen) Company LimitedInventors: Xingyao CHEN, Canlu HUANG, Wencan HU, Yidong CHEN, Hanquan LIN, Fei HUANG, Geyang KE, Zhiquan YANG
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Patent number: 11005396Abstract: Implementations of the present application relate to a starting method and apparatus for a permanent magnet synchronous motor, a power system, and an unmanned aerial vehicle (UAV). The method includes: obtaining a current motor rotational speed and motor position information of the permanent magnet synchronous motor; determining whether the current motor rotational speed is less than a preset minimum rotational speed, and if the current motor rotational speed is less than the preset minimum rotational speed, using the preset minimum rotational speed as a feedback rotational speed; otherwise, using the current motor rotational speed as a feedback rotational speed; and performing closed-loop control on the permanent magnet synchronous motor according to the feedback rotational speed and the motor position information. In this way, the starting method is simplified and simpler. Potential failure risks in various states in the prior art are avoided, thereby effectively improving reliability of a starting process.Type: GrantFiled: September 11, 2019Date of Patent: May 11, 2021Assignee: AUTEL ROBOTICS CO., LTD.Inventor: Yidong Chen
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Publication number: 20200283162Abstract: The present application relates to the field of unmanned aerial vehicle (UAV) technologies, and provides a motor control system and a UAV. The motor control system includes a control unit, a first inverter electrically connected to the control unit, a second inverter electrically connected to the control unit, a first motor electrically connected to the first inverter and a second motor electrically connected to the second inverter. According to the foregoing manner, two inverters in the motor control system are electrically connected to one control unit. Therefore, the control unit can control running of two motors, thereby reducing the volume of a hardware circuit board having the motor control system and reducing the weight.Type: ApplicationFiled: January 10, 2020Publication date: September 10, 2020Inventors: Yidong CHEN, Zhuanpeng CHENG
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Publication number: 20200066167Abstract: This application discloses a drone control method and device and a drone and pertains to the technical field of drone control. The method includes: monitoring a running status of each power motor in a drone; determining according to the running status of each power motor whether the drone is in a crashed state; and controlling the drone to alarm when determining that the drone is in the crashed state. The drone control method and device and the drone can rapidly locate a crashed drone, greatly increasing the probability of finding back the crashed drone.Type: ApplicationFiled: October 28, 2019Publication date: February 27, 2020Inventors: YIDONG CHEN, Xiangxi Pan
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Publication number: 20200007055Abstract: Implementations of the present application relate to a starting method and apparatus for a permanent magnet synchronous motor, a power system, and an unmanned aerial vehicle (UAV). The method includes: obtaining a current motor rotational speed and motor position information of the permanent magnet synchronous motor; determining whether the current motor rotational speed is less than a preset minimum rotational speed, and if the current motor rotational speed is less than the preset minimum rotational speed, using the preset minimum rotational speed as a feedback rotational speed; otherwise, using the current motor rotational speed as a feedback rotational speed; and performing closed-loop control on the permanent magnet synchronous motor according to the feedback rotational speed and the motor position information. In this way, the starting method is simplified and simpler. Potential failure risks in various states in the prior art are avoided, thereby effectively improving reliability of a starting process.Type: ApplicationFiled: September 11, 2019Publication date: January 2, 2020Inventor: Yidong CHEN
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Publication number: 20200007001Abstract: The present disclosure provides a motor and a motor fixing structure. A first conductive terminal is disposed on the motor, a lead of the motor being electrically connected to an external device through the first conductive terminal, thereby simplifying a manner of connection. When the motor fails, it is only necessary to disconnect the electrical connection between the first conductive terminal and the external device, so that the motor can be rapidly detached without any auxiliary tool, thereby simplifying operations of detaching and mounting a motor and improving the efficiency of replacing a motor.Type: ApplicationFiled: September 11, 2019Publication date: January 2, 2020Inventors: Wei SUN, Dongdong LUO, Wenbing SU, Yidong CHEN
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Patent number: 10447185Abstract: Implementations of the present application relate to a starting method and apparatus for a permanent magnet synchronous motor, a power system, and an unmanned aerial vehicle (UAV). The method includes: obtaining a current motor rotational speed and motor position information of the permanent magnet synchronous motor; determining whether the current motor rotational speed is less than a preset minimum rotational speed, and if the current motor rotational speed is less than the preset minimum rotational speed, using the preset minimum rotational speed as a feedback rotational speed; otherwise, using the current motor rotational speed as a feedback rotational speed; and performing closed-loop control on the permanent magnet synchronous motor according to the feedback rotational speed and the motor position information. In this way, the starting method is simplified and simpler. Potential failure risks in various states in the prior art are avoided, thereby effectively improving reliability of a starting process.Type: GrantFiled: January 30, 2018Date of Patent: October 15, 2019Assignee: AUTEL ROBOTICS CO., LTD.Inventor: Yidong Chen
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Publication number: 20190273453Abstract: The present disclosure discloses a method for braking a permanent magnet synchronous motor and a related device. The method is applied to an electronic speed controller and includes: receiving a signal for braking the permanent magnet synchronous motor sent by a flight controller; sending a first control signal to the permanent magnet synchronous motor, the first control signal being used to control the permanent magnet synchronous motor to decrease its rotational speed to a preset rotational speed range within a first preset time period; and after the first preset time period ends, sending a second control signal to the permanent magnet synchronous motor, the second control signal being used to control the permanent magnet synchronous motor to stop rotating within a second preset time period. According to the method, consistency of shutdown of multiple motors is ensured, and use experience of a drone is improved.Type: ApplicationFiled: May 17, 2019Publication date: September 5, 2019Inventors: Shizhi YAN, Yidong CHEN
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Publication number: 20180183367Abstract: Implementations of the present application relate to a starting method and apparatus for a permanent magnet synchronous motor, a power system, and an unmanned aerial vehicle (UAV). The method includes: obtaining a current motor rotational speed and motor position information of the permanent magnet synchronous motor; determining whether the current motor rotational speed is less than a preset minimum rotational speed, and if the current motor rotational speed is less than the preset minimum rotational speed, using the preset minimum rotational speed as a feedback rotational speed; otherwise, using the current motor rotational speed as a feedback rotational speed; and performing closed-loop control on the permanent magnet synchronous motor according to the feedback rotational speed and the motor position information. In this way, the starting method is simplified and simpler. Potential failure risks in various states in the prior art are avoided, thereby effectively improving reliability of a starting process.Type: ApplicationFiled: January 30, 2018Publication date: June 28, 2018Inventor: Yidong CHEN
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Publication number: 20180073081Abstract: The invention is directed to a method to predict prognostic results for diseases including acute myeloid leukemia (AML) by analyzing novel markers which comprises microRNA/mRNA (miRNA/mRNA) pairings. In particular, the miRNA/mRNA pairings are a kind of NPM1 mutation-modulated miRNA/mRNA regulation pairs.Type: ApplicationFiled: September 13, 2016Publication date: March 15, 2018Inventors: Eric Y. Chuang, Mong-Hsun Tsai, Wen-Chien Chou, Liang-Chuan Lai, Hwei-Fang Tien, Yu-Chiao Chiu, Tzu-Pin Lu, Yen-Chun Liu, Yi-Yi Kuo, Hsin-An Hou, Yidong Chen
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Patent number: 7363169Abstract: Simulating a microarray includes defining a number of parameters. A microarray is generated according to the parameters using an imaging procedure. The microarray is compared to a known value, and the imaging procedure is evaluated in response to the comparison. A simulated microarray image can be generated based on parameters. The simulated microarray can be associated with known values. An imaging procedure is applied to the simulated microarray image to generate observed values. The known values (e.g., intensities) can be compared to the observed values to evaluate the imaging procedure.Type: GrantFiled: January 21, 2003Date of Patent: April 22, 2008Assignees: United States of America as represented by the Secretary of the Department of Health and Human Services, The Texas A&M University SystemInventors: Edward R. Dougherty, Yoganand Balagurunathan, Yidong Chen
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Patent number: 7247426Abstract: The overexpression of certain marker genes including Wnt5a has been found useful in the identification of more aggressive forms of malignant melanoma. Therefore, the overexpression of these genes in tumor samples of malignant melanoma may be useful in the diagnosis, profiling, and treatment of patients suffering from this disease. Inhibitors of Wnt5a activity may be useful in the treatment of aggressive forms of malignant melanoma. Inhibition of Wnt5a activity may be effected by any method including anti-sense therapy, gene therapy, and pharmaceutical intervention.Type: GrantFiled: August 2, 2001Date of Patent: July 24, 2007Assignee: Agilent Technologies, Inc.Inventors: Zohar Yakhini, Michael Bittner, Jeff Trent, Amir Ben-Dor, Paul Meltzer, Yidong Chen, Ashani Weeraratna, Yuan Jiang, Nick Sampas, Edward Dougherty
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Patent number: 7003403Abstract: Relatedness between genes is quantified by constructing nonlinear models predicting gene expression. Effectiveness of the model is evaluated to provide a measurement of the relatedness of genes associated with the model. Various types of models, including full-logic or neural networks can be constructed. A graphical user interface presents results of the analysis to allow evaluation by a user. Each gene's contribution to the measurement of relatedness can be shown on a graph, and graphical representations of models used to predict gene expression can be displayed.Type: GrantFiled: June 15, 2000Date of Patent: February 21, 2006Assignees: The United States of America as represented by the Department of Health and Human Services, The Texas A & M University SystemInventors: Edward R. Dougherty, Seungchan Kim, Michael L. Bittner, Yidong Chen
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Publication number: 20050164187Abstract: Simulating a microarray includes defining a number of parameters. A microarray is generated according to the parameters using an imaging procedure. The microarray is compared to a known value, and the imaging procedure is evaluated in response to the comparison. A simulated microarray image can be generated based on parameters. The simulated microarray can be associated with known values. An imaging procedure is applied to the simulated microarray image to generate observed values. The known values (e.g., intensities) can be compared to the observed values to evaluate the imaging procedure.Type: ApplicationFiled: January 21, 2003Publication date: July 28, 2005Inventors: Edward Dougherty, Yoganand Balagurunathan, Yidong Chen
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Publication number: 20030152923Abstract: The overexpression of certain marker genes including Wnt5a has been found useful in the identification of more aggressive forms of malignant melanoma. Therefore, the overexpression of these genes in tumor samples of malignant melanoma may be useful in the diagnosis, profiling, and treatment of patients suffering from this disease. Inhibitors of Wnt5a activity may be useful in the treatment of aggressive forms of malignant melanoma. Inhibition of Wnt5a activity may be effected by any method including anti-sense therapy, gene therapy, and pharmaceutical intervention.Type: ApplicationFiled: August 2, 2001Publication date: August 14, 2003Inventors: Zohar Yakhini, Michael Bittner, Jeff Trent, Amir Ben-Dor, Paul Meltzer, Yidong Chen, Ashani Weeraratna, Yuan Jiang, Nick Sampas, Edward Dougherty