Patents by Inventor Jianfeng Zheng
Jianfeng Zheng 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: 20240131644Abstract: Disclosed is a selective field-assisted machining system. The system includes a micron-level high-speed identification module, an in-situ laser assisted module, an ultrasonic vibration module, an energy field loading high-speed control module, and a diamond tool. The micron-level high-speed identification module is used to quickly identify the type of a material substrate of a workpiece to be processed, process the identification information into a corresponding control signal, and send same to the energy field loading high-speed control module to implement selective processing of the workpiece to be processed, i.e. to process brittle particles using in-situ laser assisted machining and to process a soft metal substrate using ultrasonic vibration processing. In the present invention, ultra-precision cutting of brittle particles and a soft metal substrate can be completed at the same time in a single processing process.Type: ApplicationFiled: December 25, 2023Publication date: April 25, 2024Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Jianfeng XU, Zhengding ZHENG, Jianguo ZHANG, Kai HUANG, Mao WANG, Xiao CHEN, Junfeng XIAO
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Patent number: 11953405Abstract: A tracer particle spreading device for a boundary layer flow visualization experiment based on a flat plate includes a tracer particle generator, a smoke storage box, and a wall-surface particle distribution box. Fume and oil are pressurized by a micro pump and flows into a heating pipe to be heated and vaporized, and then is ejected from a nozzle to form tracer particles. The tracer particles enter the smoke storage box via a smoke guiding tube. An axial flow fan is mounted on a wall surface of the smoke storage box. The tracer particles enter a cavity of the wall-surface particle distribution box via the smoke guiding tube, and the tracer particles are rectified by a rectifying plate and ejected from a spreading slit. An outlet of the spreading slit is at an angle of 15° with respect to an experiment flat plate.Type: GrantFiled: July 2, 2020Date of Patent: April 9, 2024Assignee: ZHEJIANG UNIVERSITYInventors: Yao Zheng, Zhixian Ye, Jianfeng Zou, Yang Zhang, Yiyang Jiang, Zenan Tian, Shaochang Mo
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Patent number: 11941872Abstract: A progressive localization method for text-to-video clip localization. The method comprises: first, respectively extracting features of two modes, namely a video mode and a text mode by using different feature extraction methods; then progressively selecting different step sizes, and learning the correlation between the video and the text in multiple stages; and finally, training a model in an end-to-end manner based on the correlation loss of each stage. Moreover, the fine time granularity stage is fused with information of the coarse time granularity stage by means of a condition feature update module and up-sampling connection, such that different stages are mutually promoted. Different stages can pay attention to clips with different time granularities, and the model can cope with the situation that the length of a target clip is obviously changed based on the interrelation between the stages.Type: GrantFiled: April 19, 2023Date of Patent: March 26, 2024Assignee: ZHEJIANG GONGSHANG UNIVERSITYInventors: Xun Wang, Jianfeng Dong, Qi Zheng, Jingwei Peng
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Publication number: 20240076277Abstract: A system and method for preparing epoxy chloropropane is provided in that by coupling three stages of high gravity reactors, the product epoxy chloropropane and water vapor are distilled from a reaction system in form of an azeotrope by adopting a water vapor steam stripping method. Further, by combining the azeotrope with the multiples stages of high gravity reactors, the gas phase mass transfer and the liquid phase mass transfer of the azeotrope are improved aiming at the features of the azeotrope in the reaction system, thus making the overall conversion rate higher. In addition, by combining steam stripping and high gravity, dichloropropanol and alkali solution are rapidly mixed for mass transfer, and the product epoxy chloropropane is rapidly distilled from the reaction system in the form of the azeotrope, such that the reaction proceeds continuously towards the direction of producing epoxy chloropropane, thus significantly improving the conversion rate.Type: ApplicationFiled: December 24, 2021Publication date: March 7, 2024Inventors: Liangliang ZHANG, Liyang ZHOU, Guangwen CHU, Bibo XIA, Jianfeng CHEN, Yutu JIANG, Jihong TONG, Baochang SUN, Wei MAO, Yanchun ZHENG
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Patent number: 11919422Abstract: A vehicle braking energy recovering method includes obtaining current location information of a vehicle, determining a current road scenario based on the current location information of the vehicle, determining the current road scenario based on a mapping relationship between a road scenario and a weight, determining a safe distance and a safe speed of the vehicle based on the weight, determining a target torque based on the safe distance and the safe speed of the vehicle, and controlling, based on the target torque, a motor of the vehicle to recover braking energy.Type: GrantFiled: February 16, 2022Date of Patent: March 5, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Zuqi Liu, Jianfeng Zheng, Jinbo Ma, Jiajun Huang, Wei Zhang
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Patent number: 11911975Abstract: The invention provides a carbon fiber reinforced plastic electrofusion fitting and a self-monitoring method of strain for the fitting. Carbon fiber filled polymer is used to fabricate the fitting to improve the mechanical strength of the fitting. The fitting comprises an electrofusion fitting body embedded with a resistance heating wire and two terminals arranged on the electrofusion fitting body and connected to the two ends of the resistance heating wire respectively. For the self-monitoring of strain, at least one pair of electrodes are set on the surface of the electrofusion fitting. The resistance change between electrodes caused by fitting deformation due to temperature change or mechanical loading during operation can be measured, and could be further used for structural health monitoring of the electrofusion fitting. The combination of mechanical enhancement and strain sensing of the electrofusion fitting can improve the performance and reliability of plastic pipelines.Type: GrantFiled: June 21, 2019Date of Patent: February 27, 2024Assignee: ZHEJIANG UNIVERSITYInventors: Jianfeng Shi, Riwu Yao, Jinyang Zheng
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Patent number: 11912598Abstract: Embodiments of the present disclosure provide a device for kitchen waste digestion, including: a first treatment container, provided with a feed pipe and an exhaust pipe at a top, and internally configured with a plurality of pole plate pairs, the pole plate pairs including two pole plates, one of the pole plates being connected to a positive pole of a power source and another being connected to a negative pole of the power source, and a plurality of sieve holes being provided in each of the pole plates; and a second treatment container, a top of the second treatment container connecting to a bottom of the first treatment container, a middle part being configured with a plurality of filler layers spaced apart in a vertical direction, and a bottom being configured with an iron-carbon filler; and a filler in the filler layers including calcium peroxide and magnetite particles.Type: GrantFiled: August 24, 2023Date of Patent: February 27, 2024Assignee: CHANGZHOU UNIVERSITYInventors: Mingguo Peng, Jianfeng Ma, Yang Qu, Linqiang Mao, Erdeng Du, Fang Zhu, Weibing Zhu, Dongxiao Shi, Qiuya Zhang, Yanqiu Zhang, Lu Zheng
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Publication number: 20230293783Abstract: Embodiments of the present disclosure pertain to implantable medical devices that are operational for mitigating radiofrequency (RF)-induced heating. The implantable medical devices generally include a ferrite material that is associated with at least one component of the implantable medical device and operational to reduce the RF-induced heating of the implantable medical device. Additional embodiments of the present disclosure pertain to methods of mitigating radiofrequency (RF)-induced heating of an implantable medical device by applying a ferrite material to at least one component of the implantable medical device. Thereafter, the ferrite material reduces the RF-induced heating of the medical device. In some embodiments, the methods of the present disclosure also include a step of implanting the implantable medical device into a subject, such as a human being.Type: ApplicationFiled: March 7, 2023Publication date: September 21, 2023Applicant: UNIVERSITY OF HOUSTON SYSTEMInventors: Ji Chen, Jianfeng Zheng
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Publication number: 20220329841Abstract: Provided is a method for encoding audio and video data. The method includes: encapsulating cached elementary stream (ES) data of audio frames into an audio packetized elementary stream (PES) packet, and then splitting the audio PES packet into consecutive audio transport stream (TS) packets; and outputting one or more audio TS packet groups based on an order of the audio frames, and outputting one or more video TS packet groups based on an order of the video frames; wherein the one or more video TS packet group is present between the audio TS packet groups belonging to a same audio PES packet, and the one or more audio TS packet group is present between the video TS packet groups belonging to different video PES packets.Type: ApplicationFiled: June 17, 2022Publication date: October 13, 2022Inventor: Jianfeng ZHENG
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Patent number: 11466830Abstract: An LED simulated flame device includes a semi-transparent diffusion cover in a candle flame shape, a light-emitting lamp plate, and a control circuit module. The light-emitting lamp plate includes a PCB substrate, and several LED chips shading between brightness and darkness at random, and the LED chips include an up-lighting LED chip that is located on a top edge of the PCB substrate, emits light upward, and is configured to project light and shadows onto a middle upper portion of the diffusion cover, two mid-lighting LED chips that emit light toward a front surface of the diffusion cover, are configured to project light and shadows onto a middle portion of the diffusion cover, and are located on front and back surfaces of the PCB substrate, and a down-lighting LED chip that corresponds to a bottom portion of the diffusion cover, emits light upward, and is configured to supplement light.Type: GrantFiled: January 13, 2022Date of Patent: October 11, 2022Inventor: Jianfeng Zheng
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Publication number: 20220220107Abstract: Crystal forms A, B, C, D, E, F, G and H of a compound represented by formula I and a preparation method therefor, as well as medical uses for the various crystal forms and advantages thereof in various aspects.Type: ApplicationFiled: May 21, 2020Publication date: July 14, 2022Applicant: ZHEJIANG HISUN PHARMACEUTICAL CO., LTD.Inventors: Jianfeng ZHENG, Liang ZHANG, Min ZHAO, Zhenjuan SHI, Xufei LI, Zhiqing YANG
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Publication number: 20220169119Abstract: A vehicle braking energy recovering method includes obtaining current location information of a vehicle, determining a current road scenario based on the current location information of the vehicle, determining the current road scenario based on a mapping relationship between a road scenario and a weight, determining a safe distance and a safe speed of the vehicle based on the weight, determining a target torque based on the safe distance and the safe speed of the vehicle, and controlling, based on the target torque, a motor of the vehicle to recover braking energy.Type: ApplicationFiled: February 16, 2022Publication date: June 2, 2022Inventors: Zuqi Liu, Jianfeng Zheng, Jinbo Ma, Jiajun Huang, Wei Zhang
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Patent number: 11260756Abstract: A vehicle braking energy recovering method includes obtaining current location information of a vehicle, determining a current road scenario based on the current location information of the vehicle, determining the current road scenario based on a mapping relationship between a road scenario and a weight, determining a safe distance and a safe speed of the vehicle based on the weight, determining a target torque based on the safe distance and the safe speed of the vehicle, and controlling, based on the target torque, a motor of the vehicle to recover braking energy.Type: GrantFiled: May 9, 2019Date of Patent: March 1, 2022Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Zuqi Liu, Jianfeng Zheng, Jinbo Ma, Jiajun Huang, Wei Zhang
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Patent number: 11210942Abstract: Embodiments of the disclosure provide systems and methods for optimizing a traffic control plan. The system may include at least one storage device configured to store instructions and at least one processor configured to execute the instructions to perform operations. The operations may include receiving traffic system log data and parsing the traffic system log data to obtain a first set of traffic performance parameters. The operations may also include receiving trajectory data relating to a plurality of vehicle movements and parsing the trajectory data to obtain a second set of traffic performance parameters. The operations may further include determining relationships between vehicle delays and degrees of saturation based on the first and second sets of traffic performance parameters. In addition, the operations may include optimizing the traffic control plan based on the relationships.Type: GrantFiled: June 22, 2020Date of Patent: December 28, 2021Assignee: BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT CO., LTD.Inventors: Jianfeng Zheng, Xianghong Liu, Fuliang Li
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Patent number: 11117875Abstract: The present invention relates to novel crystal forms of ozanimod. Compared with the prior art, the crystal forms of the present invention have one or more improved properties. The present invention also relates to preparation methods of the crystal forms, pharmaceutical compositions thereof and uses thereof for the manufacture of medicament for treating and/or preventing diseases or adverse conditions associated with modulation, activation, stimulation, inhibition or antagonization of selective sphingosine-1-phosphate (S1P) receptor.Type: GrantFiled: September 14, 2016Date of Patent: September 14, 2021Assignee: Hangzhou Solipharma Co., Ltd.Inventors: Xiaohong Sheng, Xiaoxia Sheng, Jianfeng Zheng
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Patent number: 10809709Abstract: An information storage system and apparatus relate to the field of automatic control technologies in order to resolve a problem that there is little information for diagnosing a fault that is stored using a freeze frame. The system includes at least one subcontroller configured to obtain a parameter value corresponding to a parameter, and send the parameter and the parameter value corresponding to the parameter to a management controller, the management controller configured to send the received parameter and the received parameter value corresponding to the parameter to a vehicle-intelligent device, and the vehicle-intelligent device is configured to receive and store the parameter and the parameter value corresponding to the parameter, where each subcontroller is coupled to at least one executor, and the management controller is coupled to each subcontroller of the at least one subcontroller.Type: GrantFiled: May 29, 2018Date of Patent: October 20, 2020Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Mingming Zhang, Jianfeng Zheng, Chengwang Yang
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Publication number: 20200320874Abstract: Embodiments of the disclosure provide systems and methods for optimizing a traffic control plan. The system may include at least one storage device configured to store instructions and at least one processor configured to execute the instructions to perform operations. The operations may include receiving traffic system log data and parsing the traffic system log data to obtain a first set of traffic performance parameters. The operations may also include receiving trajectory data relating to a plurality of vehicle movements and parsing the trajectory data to obtain a second set of traffic performance parameters. The operations may further include determining relationships between vehicle delays and degrees of saturation based on the first and second sets of traffic performance parameters. In addition, the operations may include optimizing the traffic control plan based on the relationships.Type: ApplicationFiled: June 22, 2020Publication date: October 8, 2020Applicant: BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT CO., LTD.Inventors: Jianfeng ZHENG, Xianghong LIU, Fuliang LI
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Patent number: 10759798Abstract: Crystalline forms, preparation methods and pharmaceutical compositions of ABT-199 monohydrochloride and ABT-199 dihydrochloride are disclosed. Compared with known ABT-199, they have one or more improved properties. They can be used to prepare drugs for the treatment and/or prevention of one or more diseases associated with overexpression of an anti-apoptotic BCL-2 family protein.Type: GrantFiled: September 14, 2016Date of Patent: September 1, 2020Assignee: Hangzhou SoliPharma Co., Ltd.Inventors: Xiaohong Sheng, Xiaoxia Sheng, Jianfeng Zheng
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Patent number: 10755564Abstract: Embodiments of the disclosure provide systems and methods for optimizing a traffic control plan. The system may include at least one storage device configured to store instructions and at least one processor configured to execute the instructions to perform operations. The operations may include receiving traffic system log data and parsing the traffic system log data to obtain a first set of traffic performance parameters. The operations may also include receiving trajectory data relating to a plurality of vehicle movements and parsing the trajectory data to obtain a second set of traffic performance parameters. The operations may further include determining relationships between vehicle delays and degrees of saturation based on the first and second sets of traffic performance parameters. In addition, the operations may include optimizing the traffic control plan based on the relationships.Type: GrantFiled: December 15, 2018Date of Patent: August 25, 2020Assignee: BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT CO., LTD.Inventors: Jianfeng Zheng, Xianghong Liu, Fuliang Li
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Publication number: 20200193815Abstract: Embodiments of the disclosure provide traffic control systems and methods. The traffic control system may include a communication interface configured to receive vehicle trajectory data acquired by sensors and traffic control data from traffic signal controllers. The traffic control system may further include at least one processor. The at least one processor may be configured to detect an abnormal traffic condition. The at least one processor may be further configured to optimize an online traffic control scheme based on the vehicle trajectory data by adjusting green splits for a plurality of phases. The at least one processor may be also configured to provide, in real-time, the optimized online traffic control scheme to a traffic signal controller for generating traffic control signals.Type: ApplicationFiled: February 20, 2020Publication date: June 18, 2020Applicant: BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT CO., LTD.Inventors: Jianfeng ZHENG, Xianghong LIU