Patents by Inventor Dewei Chen
Dewei 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: 11945067Abstract: An automobile hub fixture includes a fixture body and a positioning apparatus. The fixture body includes a fixed platform and a plurality of clamping claws arranged at intervals in a circumferential direction of the fixed platform. The clamping claws are configured to clamp an outer rim of a hub. The plurality of clamping claws are connected to a driving member by using a linkage, and the driving member drives the clamping claws to radially move along the fixed platform. The positioning apparatus includes a movable platform slidably connected to the clamping claws. A positioning module configured to position an inner rim or the outer rim of the hub is mounted to the movable platform. The machining device includes a fixture, a machine tool, and a minimal quantity lubrication apparatus. The production line includes a machining device, a loading system, a loading and unloading manipulator, and a catching table.Type: GrantFiled: December 14, 2021Date of Patent: April 2, 2024Assignees: QINGDAO UNIVERSITY OF TECHNOLOGY, HANERGY (QINGDAO) LUBRICATION TECHNOLOGY CO., LTD.Inventors: Changhe Li, Minkai Chen, Zongming Zhou, Naiqing Zhang, Shuaiqiang Xu, Dewei Liu, Bingheng Lu, Yanbin Zhang, Xiaoming Wang, Min Yang, Bo Liu, Xin Cui, Mingzheng Liu, Xifeng Wu
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Publication number: 20240099637Abstract: A fetal Doppler (10) and a detection method, which relate to the technical field of medical devices. The fetal Doppler (10) comprises a housing (1, a fetal detection unit (20) and a maternal parameter detection unit (30), wherein the fetal detection unit (20) and the maternal parameter detection unit (30) are respectively used for collecting fetal physiological data and maternal physiological data; a controller (7) is arranged in an internal cavity of the housing (1); and the controller (7) is used for analyzing the collected fetal physiological data and maternal physiological data, so as to obtain a fetal heart rate and a maternal parameter. The same fetal Doppler (10) is used, such that the instrument cost is reduced; and maternal and fetal parameters can be acquired at the same time by directly using the same fetal Doppler (10), such that an instrument structure is simplified, and the detection efficiency of the maternal and fetal parameters is improved.Type: ApplicationFiled: March 30, 2022Publication date: March 28, 2024Inventors: Dewei CHEN, Weita LIAO, Jinqun LIU, Junyu YU, Gonghua WANG, Yong WU
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Publication number: 20240058716Abstract: The disclosure discloses a method and device for controlling linear brakes of remote control model racing cars; the user sends a remote-control command to a motor control module of the model car through a remote controller; the remote-control command includes a braking command; the braking command includes the current throttle value; when remote-control command a braking command is sent, the motor control module selects the appropriate braking algorithm according to the current brushless motor speed; if the current brushless motor speed is greater than the first threshold, the field-oriented control (Foc) brake control algorithm is selected according to the received remote-control command and controls the braking current of the brushless motor; if the current brushless motor speed is less than or equal to the first threshold, the braking algorithm is switched based on pulse width modulation (PWM) control according to the received remote-control command and controls the braking current of the brushless motor;Type: ApplicationFiled: February 24, 2023Publication date: February 22, 2024Inventors: Dewei CHEN, Youhui LIU, Diyu LI
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Patent number: 11899616Abstract: The present disclosure provides a systolic array-based data processing method that includes determining an input splice quantity for the systolic array based on a target input depth and a standard input depth, and determining an output splice quantity for the systolic array based on a target output depth and a standard output depth; inputting the input data matching the input splice quantity to an input buffer of the systolic array in batches, without overlaps in the input data, and processing, by the systolic array, the input data in the input buffer to generate output data corresponding to each piece of input data; and in accordance with a determination that a quantity of output data received by an output buffer of the systolic array from the systolic array matches the output splice quantity, outputting, in the output buffer, output data having a quantity matching the output splice quantity in batches.Type: GrantFiled: November 14, 2022Date of Patent: February 13, 2024Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Xiaoyu Yu, Dewei Chen, Heng Zhang
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Publication number: 20230325149Abstract: A data processing method includes: acquiring a data sorting request for a data sequence to be sorted, and invoking C data bitonic sorting components in response to the data sorting request, C being a positive integer greater than 1; initiating B data bitonic sorting tasks according to the data sequence and the C data bitonic sorting components, B being a positive integer greater than 1, the B data bitonic sorting tasks being respectively associated with different data subsequences of B data subsequences, and the B data subsequences being generated based on the to-be-sorted data sequence; operating the C data bitonic sorting components in parallel according to the B data bitonic sorting tasks to obtain B data sorting subresults; and combining the B data sorting subresults based on the C data bitonic sorting components to obtain a data sorting result for the data sequence.Type: ApplicationFiled: June 15, 2023Publication date: October 12, 2023Inventors: Xiaoyu YU, Dewei CHEN, Feng HAN, Jiaxin LI
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Patent number: 11734007Abstract: A system parses a very long instruction word (VLIW) to obtain an execution parameter. The system obtains a first sliding window width count, a first sliding window height count, a first feature map width count, and a first feature map height count that correspond to first target data. In accordance with a determination that the first sliding window width count falls within the sliding window width range, the first sliding window height count falls within the sliding window height range, (the first feature map width count falls within the feature map width range, and the first feature map height count falls within the feature map height range, the system determines an offset of the first target data. The system also obtains a starting address of the first target data, and adds the starting address to the offset to obtain a first target address of the first target data.Type: GrantFiled: April 26, 2022Date of Patent: August 22, 2023Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Xiaoyu Yu, Dewei Chen, Heng Zhang, Yan Xiong, Jianlin Gao
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Publication number: 20230190099Abstract: The present application relates to the technical field of medical monitoring. Specifically disclosed are a method for managing monitoring data, a probe assembly, and a system for managing monitoring data. The method for managing monitoring data based on the probe assembly comprises the following steps: establishing a communication connection with a first monitor; in response to a data roll-out instruction, receiving first monitoring data from the first monitor, and after the transmission of the first monitoring data is completed, breaking the communication connection with the first monitor; establishing a communication connection with a second monitor; and sending at least the first monitoring data to the second monitor, and cooperating with the second monitor to execute a monitoring task.Type: ApplicationFiled: February 17, 2023Publication date: June 22, 2023Inventors: WENYU WEI, MEISHENG LI, DEWEI CHEN, CHONG LUO
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Publication number: 20230070177Abstract: The present disclosure provides a systolic array-based data processing method that includes determining an input splice quantity for the systolic array based on a target input depth and a standard input depth, and determining an output splice quantity for the systolic array based on a target output depth and a standard output depth; inputting the input data matching the input splice quantity to an input buffer of the systolic array in batches, without overlaps in the input data, and processing, by the systolic array, the input data in the input buffer to generate output data corresponding to each piece of input data; and in accordance with a determination that a quantity of output data received by an output buffer of the systolic array from the systolic array matches the output splice quantity, outputting, in the output buffer, output data having a quantity matching the output splice quantity in batches.Type: ApplicationFiled: November 14, 2022Publication date: March 9, 2023Inventors: Xiaoyu YU, Dewei Chen, Heng Zhang
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Publication number: 20220330845Abstract: A detection probe and a fetal monitor. The detection probe comprises a probe body (2) and a mounting structure (1), detachably mounted on the probe body (2) and having a heart rate sensor for heart rate detection, a socket (4) for data transmission, and a lead line (5) for connecting the heart rate sensor and the socket (4) arranged thereon. A variety of functions can be achieved by means of a single detection device and thus the degree of integration is high; moreover, when the heart rate sensor is failed or aged, because the mounting structure (1) can be separated from the probe body (2), it is only necessary to repair and replace a corresponding part, so that the maintenance is convenient and the cost is reduced. Furthermore, the mounting structure (1) can also product the probe body (2) to some extent, and thus the anti-dropping capability of the detection probe is improved.Type: ApplicationFiled: November 13, 2019Publication date: October 20, 2022Applicant: EDAN INSTRUMENTS, INC.Inventors: Chong Luo, Dewei Chen, Lichao Dong
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Publication number: 20220261249Abstract: A system parses a very long instruction word (VLIW) to obtain an execution parameter. The system obtains a first sliding window width count, a first sliding window height count, a first feature map width count, and a first feature map height count that correspond to first target data. In accordance with a determination that the first sliding window width count falls within the sliding window width range, the first sliding window height count falls within the sliding window height range, (the first feature map width count falls within the feature map width range, and the first feature map height count falls within the feature map height range, the system determines an offset of the first target data. The system also obtains a starting address of the first target data, and adds the starting address to the offset to obtain a first target address of the first target data.Type: ApplicationFiled: April 26, 2022Publication date: August 18, 2022Inventors: Xiaoyu YU, Dewei CHEN, Heng ZHANG, Yan XIONG, Jianlin GAO
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Patent number: 11375942Abstract: A method for extracting f wave from a single-lead electrocardiography signal is provided. The method includes: establishing a two-channel temporal convolutional neural network model, including two coding submodules, two mask estimation submodules, an information fusion module and two decoding submodules; constructing a training data set of ECG signals; training the two-channel temporal convolutional neural network model, and saving the trained model. The two-channel temporal convolution neural network encodes and decodes a QRST complex and the f wave respectively, and uses a mask of information fusion to estimate and construct regular items to restrict a distribution difference of QRST component coding features, so as to reduce the distortion of the QRST complex, select potential features of a QRST complex and f wave with high signal-to-noise ratio, and thus improve a detection accuracy of the f wave.Type: GrantFiled: October 8, 2021Date of Patent: July 5, 2022Assignee: GUANGDONG UNIVERSITY OF TECHNOLOGYInventors: Jun Lu, Lei Li, Shengli Xie, Jie Luo, Zongze Wu, Qiyu Yang, Sihai Qiu, Binbin Yan, Dewei Chen
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Publication number: 20220137927Abstract: A processing component includes at least one arithmetic and logic unit (ALU), the ALU including a decoding and parameter input channel, a data input channel, an operation component, a first port crossbar switch matrix, and a second port crossbar switch matrix, the decoding and parameter input channel being configured to receive an execution parameter; the data input channel being configured to receive first data and second data; the first port crossbar switch matrix being configured to input the first data to the operation component; the second port crossbar switch matrix being configured to input the second data to the operation component; and the operation component being configured to process the first data and the second data according to the execution parameter to obtain a target operation result.Type: ApplicationFiled: January 19, 2022Publication date: May 5, 2022Inventors: Xiaoyu YU, Dewei CHEN
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Publication number: 20220110576Abstract: A method for extracting f wave from a single-lead electrocardiography signal is provided. The method includes: establishing a two-channel temporal convolutional neural network model, including two coding submodules, two mask estimation submodules, an information fusion module and two decoding submodules; constructing a training data set of ECG signals; training the two-channel temporal convolutional neural network model, and saving the trained model. The two-channel temporal convolution neural network encodes and decodes a QRST complex and the f wave respectively, and uses a mask of information fusion to estimate and construct regular items to restrict a distribution difference of QRST component coding features, so as to reduce the distortion of the QRST complex, select potential features of a QRST complex and f wave with high signal-to-noise ratio, and thus improve a detection accuracy of the f wave.Type: ApplicationFiled: October 8, 2021Publication date: April 14, 2022Inventors: Jun Lu, Lei Li, Shengli Xie, Jie Luo, Zongze Wu, Qiyu Yang, Sihai Qiu, Binbin Yan, Dewei Chen
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Patent number: 10939893Abstract: A Doppler fetal heartbeat monitor includes: a housing; a mainboard; a loudspeaker installed in the housing and electrically connected to the mainboard; and an ultrasonic transducer installed in the housing, electrically connected to the mainboard, and comprising at least one transduction wafer configured to generate an impulse wave, in which the ultrasonic transducer is internally provided at a head end of the housing, and the loudspeaker and the mainboard are internally provided at a tail end of the housing. By arranging the loudspeaker, the mainboard and the ultrasonic transducer in the housing, the Doppler fetal heartbeat monitor can have a compact structure and a small volume. Moreover, it is possible to reduce positive feedback of a sound system and a probability of a self-excited whistle.Type: GrantFiled: April 10, 2017Date of Patent: March 9, 2021Inventors: Dong Huang, Dewei Chen, Yong Wu
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Publication number: 20180353153Abstract: A Doppler fetal heartbeat monitor includes: a housing; a mainboard; a loudspeaker installed in the housing and electrically connected to the mainboard; and an ultrasonic transducer installed in the housing, electrically connected to the mainboard, and comprising at least one transduction wafer configured to generate an impulse wave, in which the ultrasonic transducer is internally provided at a head end of the housing, and the loudspeaker and the mainboard are internally provided at a tail end of the housing. By arranging the loudspeaker, the mainboard and the ultrasonic transducer in the housing, the Doppler fetal heartbeat monitor can have a compact structure and a small volume. Moreover, it is possible to reduce positive feedback of a sound system and a probability of a self-excited whistle.Type: ApplicationFiled: April 10, 2017Publication date: December 13, 2018Applicant: Edan Instruments, IncInventors: Dong Huang, Dewei Chen, Yong Wu
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Patent number: 9931100Abstract: The invention relates to a method and device for locating wireless fetal monitoring probes in a set area. The method comprises the following steps: instructions are sent via a plurality of wireless base stations to instruct the wireless probes in the action scopes of the wireless base stations to send base station signal intensity data tables; the wireless probes search all receivable base station signals, establish the base station signal intensity data tables; operations are carried out based on the received current base station signal intensity data tables and base station signal intensity data tables of reference points to obtain a distance reference table; the position of one with the smallest distance value is selected to be regarded as the current position of the corresponding probe. The method and the device have the benefits of quickly locating each wireless probe and avoiding loss of monitoring data.Type: GrantFiled: April 15, 2015Date of Patent: April 3, 2018Assignee: Edan Instruments, Inc.Inventors: Lin Tang, Dewei Chen, Xin Yin
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Patent number: 9900257Abstract: A method for achieving high-speed data transmission is disclosed. The method includes: repacking a data packet to be transmitted using a preset bit width and adding a check code; for a correct response message, releasing system resources immediately, and for an incorrect response message, implementing an automatic retransmission operation on the data packet, thereby reducing the complexity and power consumption level of a chip, and ensuring the data exchange speed and quality. Also provided is a universal interface chip for achieving high-speed data transmission.Type: GrantFiled: August 20, 2013Date of Patent: February 20, 2018Assignee: ZTE CorporationInventors: Xu Chen, Dewei Chen, Liguo Feng, Hongbo Xu
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Patent number: 9801609Abstract: The present invention relates to the field of biomedical signal processing, specifically, a device and method of implementation for enhancing the accuracy of fetal heart rate acceleration data recognition.Type: GrantFiled: September 25, 2012Date of Patent: October 31, 2017Assignee: EDAN INSTRUMENTS INC.Inventors: Jian Rao, Dewei Chen, Yonghua Zeng, Wusun Chen
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Publication number: 20170100090Abstract: The invention relates to a method and device for locating wireless fetal monitoring probes in a set area. The method comprises the following steps: instructions are sent via a plurality of wireless base stations to instruct the wireless probes in the action scopes of the wireless base stations to send base station signal intensity data tables; the wireless probes search all receivable base station signals, establish the base station signal intensity data tables; operations are carried out based on the received current base station signal intensity data tables and base station signal intensity data tables of reference points to obtain a distance reference table; the position of one with the smallest distance value is selected to be regarded as the current position of the corresponding probe. The method and the device have the benefits of quickly locating each wireless probe and avoiding loss of monitoring data.Type: ApplicationFiled: April 15, 2015Publication date: April 13, 2017Applicant: Edan Instruments, Inc.Inventors: Lin TANG, Dewei CHEN, Xin YIN
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Publication number: 20160310102Abstract: The present invention relates to the field of biomedical signal processing, specifically, a device and method of implementation for enhancing the accuracy of fetal heart rate acceleration data recognition.Type: ApplicationFiled: September 25, 2012Publication date: October 27, 2016Applicant: EDAN INSTRUMENTS, INC.Inventors: Jian RAO, Dewei CHEN, Yonghua ZENG, Wusun CHEN