Patents by Inventor Yunhua ZHANG
Yunhua 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).
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Patent number: 11960576Abstract: Videos captured in low light conditions can be processed in order to identify an activity being performed in the video. The processing may use both the video and audio streams for identifying the activity in the low light video. The video portion is processed to generate a darkness-aware feature which may be used to modulate the features generated from the audio and video features. The audio features may be used to generate a video attention feature and the video features may be used to generate an audio attention feature. The audio and video attention features may also be used in modulating the audio video features. The modulated audio and video features may be used to predict an activity occurring in the video.Type: GrantFiled: July 20, 2021Date of Patent: April 16, 2024Assignee: Inception Institute of Artificial Intelligence LtdInventors: Yunhua Zhang, Xiantong Zhen, Ling Shao, Cees G. M. Snoek
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Patent number: 11923532Abstract: A pre-lithiated silicon-based anode includes a silicon-based anode, lithium disposed on a surface or in an interior of the silicon-based anode, and a protective coating on the surface of the silicon-based anode. The pre-lithiated silicon-based anode allows subsequent processing to be performed safely in the atmosphere.Type: GrantFiled: April 17, 2017Date of Patent: March 5, 2024Assignee: Robert Bosch GmbHInventors: Rongrong Jiang, Jingjun Zhang, Yuqian Dou, Lei Wang, Chuanling Li, Yunhua Chen, Xiaogang Hao, Qiang Lu
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Patent number: 11923127Abstract: The present disclosure relates to a tank of a high-voltage generator including a tank body and a tank lid. There is an opening in the tank lid. The opening is connected to the bellows so as to counteract the volume change of the transformer oil and avoid generation of bubbles. The tank includes a positive transformer, a negative transformer, a bellows, and other components. The high-voltage winding is embedded in the PCBs. The outer insulating bushing is covered by the PCBs so as to improve the insulativity between the turns of the high-voltage winding. In addition, oil barriers may be placed between the positive and the negative transformers, or between the transformers and the ground so as to eliminate the bridge breakdown effect and make the electric field uniform. By means of said measures, the present disclosure improves the stability of the high-voltage generator.Type: GrantFiled: November 2, 2020Date of Patent: March 5, 2024Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.Inventors: Yunhua Zhang, Jieyong Meng, Qingchang Chen, Yihong Liu, Shilin Shen
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Publication number: 20230353603Abstract: A call processing method includes: an application service device is configured to send a data channel establishment indication message to the application media device when detecting that a terminal device initiates or receives a call service, to indicate the application media device to establish a data channel with the terminal device. The application media device is configured to: receive the data channel establishment indication message from the application service device, establish the data channel with the terminal device, and send first service page information corresponding to the call service to the terminal device through the data channel. It can be learned that, a control plane and a media plane in the call processing system are separated, the application service device is configured to implement a function of the control plane, and the application media device is configured to implement a function of the media plane.Type: ApplicationFiled: July 5, 2023Publication date: November 2, 2023Inventors: Guangjie Shen, Yunhua Zhang, Ye Zhu, Yigang Jia
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Publication number: 20230353673Abstract: A call processing method includes: an application server establishes a data channel between the application server and the terminal device when detecting that the terminal device initiates or receives a call service, and obtains first service page information corresponding to the call service. The application server sends the first service page information to the terminal device through the data channel when detecting that the call service is connected, so that the terminal device displays a corresponding UI page on a call screen based on the first service page information. It can be learned that, the application server associates an original call service with an interactive data channel service, and the application server delivers service page information to the terminal device, so that the terminal device can implement an interactive service during a call.Type: ApplicationFiled: July 5, 2023Publication date: November 2, 2023Inventors: Guangjie SHEN, Yunhua ZHANG, Ye ZHU, Yigang JIA
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Patent number: 11694442Abstract: Repetitive activities can be captured in audio video content. The AV content can be processed in order to predict the number of repetitive activities present in the AV content. The accuracy of the predicted number may be improved, especially for AV content with challenging conditions, by basing the predictions on both the audio and video portions of the AV content.Type: GrantFiled: June 18, 2021Date of Patent: July 4, 2023Assignee: Inception Institute of Artificial Intelligence LtdInventors: Yunhua Zhang, Cees G. M. Snoek, Ling Shao
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Publication number: 20230039641Abstract: Videos captured in low light conditions can be processed in order to identify an activity being performed in the video. The processing may use both the video and audio streams for identifying the activity in the low light video. The video portion is processed to generate a darkness-aware feature which may be used to modulate the features generated from the audio and video features. The audio features may be used to generate a video attention feature and the video features may be used to generate an audio attention feature. The audio and video attention features may also be used in modulating the audio video features. The modulated audio and video features may be used to predict an activity occurring in the video.Type: ApplicationFiled: July 20, 2021Publication date: February 9, 2023Inventors: Yunhua Zhang, Xiantong Zhen, Ling Shao, Cees G.M. Snoek
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Patent number: 11572818Abstract: The disclosure relates to a self-adaptive oil spraying control system and method for a biodiesel engine. The control system includes an exhaust pipe, a gas sensor, a control module and an oil sprayer, wherein the exhaust pipe is connected to the oil sprayer, the gas sensor is mounted in the exhaust pipe, and the gas sensor and the oil sprayer are connected to the control module respectively. According to the control method, a main spray advance angle of the engine is subjected to closed-loop control directly through comparison between an idling steady state NOx emission signal and an idling steady state NOx emission value of pure diesel when the engine uses the biodiesel, so that emission of NOx in the exhaust is reduced. Compared with the prior art, the disclosure has the advantages of no need of detecting a biodiesel ratio, high efficiency, good effect and the like.Type: GrantFiled: March 29, 2021Date of Patent: February 7, 2023Assignee: TONGJI UNIVERSITYInventors: Diming Lou, Yinghua Zhao, Piqiang Tan, Yunhua Zhang, Liang Fang, Zhiyuan Hu
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Publication number: 20220156501Abstract: Repetitive activities can be captured in audio video content. The AV content can be processed in order to predict the number of repetitive activities present in the AV content. The accuracy of the predicted number may be improved, especially for AV content with challenging conditions, by basing the predictions on both the audio and video portions of the AV content.Type: ApplicationFiled: June 18, 2021Publication date: May 19, 2022Inventors: Yunhua Zhang, Cees G. M. Snoek, Ling Shao
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Publication number: 20220099010Abstract: The disclosure relates to a self-adaptive oil spraying control system and method for a biodiesel engine. The control system includes an exhaust pipe, a gas sensor, a control module and an oil sprayer, wherein the exhaust pipe is connected to the oil sprayer, the gas sensor is mounted in the exhaust pipe, and the gas sensor and the oil sprayer are connected to the control module respectively. According to the control method, a main spray advance angle of the engine is subjected to closed-loop control directly through comparison between an idling steady state NOx emission signal and an idling steady state NOx emission value of pure diesel when the engine uses the biodiesel, so that emission of NOx in the exhaust is reduced. Compared with the prior art, the disclosure has the advantages of no need of detecting a biodiesel ratio, high efficiency, good effect and the like.Type: ApplicationFiled: March 29, 2021Publication date: March 31, 2022Applicant: TONGJI UNIVERSITYInventors: Diming Lou, Yinghua Zhao, Piqiang Tan, Yunhua Zhang, Liang Fang, Zhiyuan Hu
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Patent number: 11225927Abstract: An air-fuel ratio control system for a hybrid vehicle engine is provided, including a torque coordination calculation module, which converts a target effective torque of a hybrid power control unit into a target indicated torque; a torque estimation module, which obtains an estimated indicated torque according to an operating state of an engine; an air-fuel ratio feedback control module, which generates a feedback correction factor based on deviation between the estimated indicated torque and the target indicated torque; and an air-fuel ratio feedforward control module, which converts the target indicated torque into an air-fuel ratio feedforward control signal according to a calibration parameter and engine speed. A target air-fuel ratio is obtained by correcting the air-fuel ratio feedforward control signal, via the feedback correction factor; and the target air-fuel ratio is configured to act on the engine to achieve air-fuel ratio control.Type: GrantFiled: March 11, 2021Date of Patent: January 18, 2022Assignee: TONGJI UNIVERSITYInventors: Diming Lou, Liang Fang, Piqiang Tan, Yunhua Zhang, Zhiyuan Hu, Yafeng Shi
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Patent number: 11208937Abstract: A method for diagnosing a diesel oxidation catalyst fault includes: obtaining an standard molar enthalpy of formation-revolution speed-load table; obtaining a revolution speed, a load, a temperature difference of front and rear exhaust pipes, and a casing temperature, obtaining an standard molar enthalpy of formation corresponding to the revolution speed and the load from the standard molar enthalpy of formation-revolution speed-load table, and calculating an actual formation enthalpy corresponding to the temperature difference of front and rear exhaust pipes and the casing temperature from the temperature difference of front and rear exhaust pipes and the casing temperature; calculating a standard reaction enthalpy from the standard molar enthalpy of formation and standard conversion efficiency; and diagnosing a diesel oxidation catalyst fault by comparing the actual formation enthalpy with the standard reaction enthalpy.Type: GrantFiled: June 23, 2021Date of Patent: December 28, 2021Assignee: TONGJI UNIVERSITYInventors: Piqiang Tan, Chaojie Yao, Deyuan Wang, Zhiyuan Hu, Diming Lou, Yunhua Zhang, Liang Fang
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Patent number: 11187123Abstract: A method for controlling an exhaust after-treatment system based on NO2 medium adjustment includes the following steps: creating a diesel oxidation catalyst (DOC) reaction map, a diesel particulate filter (DPF) reaction map, and a selective catalytic reduction (SCR) reaction map; obtaining an SCR reaction temperature, desired SCR reaction efficiency, and obtaining NO2 demand according to the SCR reaction map; obtaining a DPF reaction temperature and differential pressure, and obtaining NO2 consumption from the DPF reaction map; obtaining NO2 production, and calculating NO2 input for SCR; if the NO2 input is not equal to the NO2 demand, calculating target NO2 production, obtaining a target DOC reaction temperature corresponding to the target NO2 production from the DOC reaction map, and adjusting a fuel injection rate so that the DOC reaction temperature is equal to the target DOC reaction temperature.Type: GrantFiled: April 13, 2021Date of Patent: November 30, 2021Assignee: TONGJI UNIVERSITYInventors: Diming Lou, Yunhua Zhang, Piqiang Tan, Zhiyuan Hu, Liang Fang
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Publication number: 20210301750Abstract: An air-fuel ratio control system for a hybrid vehicle engine is provided, including a torque coordination calculation module, which converts a target effective torque of a hybrid power control unit into a target indicated torque; a torque estimation module, which obtains an estimated indicated torque according to an operating state of an engine; an air-fuel ratio feedback control module, which generates a feedback correction factor based on deviation between the estimated indicated torque and the target indicated torque; and an air-fuel ratio feedforward control module, which converts the target indicated torque into an air-fuel ratio feedforward control signal according to a calibration parameter and engine speed. A target air-fuel ratio is obtained by correcting the air-fuel ratio feedforward control signal, via the feedback correction factor; and the target air-fuel ratio is configured to act on the engine to achieve air-fuel ratio control.Type: ApplicationFiled: March 11, 2021Publication date: September 30, 2021Applicant: TONGJI UNIVERSITYInventors: Diming LOU, Liang FANG, Piqiang TAN, Yunhua ZHANG, Zhiyuan HU, Yafeng SHI
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Publication number: 20210050146Abstract: The present disclosure relates to a tank of a high-voltage generator including a tank body and a tank lid. There is an opening in the tank lid. The opening is connected to the bellows so as to counteract the volume change of the transformer oil and avoid generation of bubbles. The tank includes a positive transformer, a negative transformer, a bellows, and other components. The high-voltage winding is embedded in the PCBs. The outer insulating bushing is covered by the PCBs so as to improve the insulativity between the turns of the high-voltage winding. In addition, oil barriers may be placed between the positive and the negative transformers, or between the transformers and the ground so as to eliminate the bridge breakdown effect and make the electric field uniform. By means of said measures, the present disclosure improves the stability of the high-voltage generator.Type: ApplicationFiled: November 2, 2020Publication date: February 18, 2021Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.Inventors: Yunhua ZHANG, Jieyong MENG, Qingchang CHEN, Yihong LIU, Shilin SHEN
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Patent number: 10825603Abstract: The present disclosure relates to a tank of a high-voltage generator including a tank body and a tank lid. There is an opening in the tank lid. The opening is connected to the bellows so as to counteract the volume change of the transformer oil and avoid generation of bubbles. The tank includes a positive transformer, a negative transformer, a bellows, and other components. The high-voltage winding is embedded in the PCBs. The outer insulating bushing is covered by the PCBs so as to improve the insulativity between the turns of the high-voltage winding. In addition, oil barriers may be placed between the positive and the negative transformers, or between the transformers and the ground so as to eliminate the bridge breakdown effect and make the electric field uniform. By means of said measures, the present disclosure improves the stability of the high-voltage generator.Type: GrantFiled: February 2, 2019Date of Patent: November 3, 2020Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.Inventors: Yunhua Zhang, Jieyong Meng, Qingchang Chen, Yihong Liu, Shilin Shen
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Patent number: 10340075Abstract: The present disclosure relates to a tank of a high-voltage generator including a tank body and a tank lid. There is an opening in the tank lid. The opening is connected to the bellows so as to counteract the volume change of the transformer oil and avoid generation of bubbles. The tank includes a positive transformer, a negative transformer, a bellows, and other components. The high-voltage winding is embedded in the PCBs. The outer insulating bushing is covered by the PCBs so as to improve the insulativity between the turns of the high-voltage winding. In addition, oil barriers may be placed between the positive and the negative transformers, or between the transformers and the ground so as to eliminate the bridge breakdown effect and make the electric field uniform. By means of said measures, the present disclosure improves the stability of the high-voltage generator.Type: GrantFiled: June 23, 2015Date of Patent: July 2, 2019Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.Inventors: Yunhua Zhang, Jieyong Meng, Qingchang Chen, Yihong Liu, Shilin Shen
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Publication number: 20190172632Abstract: The present disclosure relates to a tank of a high-voltage generator including a tank body and a tank lid. There is an opening in the tank lid. The opening is connected to the bellows so as to counteract the volume change of the transformer oil and avoid generation of bubbles. The tank includes a positive transformer, a negative transformer, a bellows, and other components. The high-voltage winding is embedded in the PCBs. The outer insulating bushing is covered by the PCBs so as to improve the insulativity between the turns of the high-voltage winding. In addition, oil barriers may be placed between the positive and the negative transformers, or between the transformers and the ground so as to eliminate the bridge breakdown effect and make the electric field uniform. By means of said measures, the present disclosure improves the stability of the high-voltage generator.Type: ApplicationFiled: February 2, 2019Publication date: June 6, 2019Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.Inventors: Yunhua ZHANG, Jieyong MENG, Qingchang CHEN, Yihong LIU, Shilin SHEN
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Patent number: 9899142Abstract: The present disclosure relates to a tank of a high-voltage generator including a tank body and a tank lid. There is an opening in the tank lid. The opening is connected to the bellows so as to counteract the volume change of the transformer oil and avoid generation of bubbles. The tank includes a positive transformer, a negative transformer, a bellows, and other components. The high-voltage winding is embedded in the PCBs. The outer insulating bushing is covered by the PCBs so as to improve the insulativity between the turns of the high-voltage winding. In addition, oil barriers may be placed between the positive and the negative transformers, or between the transformers and the ground so as to eliminate the bridge breakdown effect and make the electric field uniform. By means of said measures, the present disclosure improves the stability of the high-voltage generator.Type: GrantFiled: February 28, 2017Date of Patent: February 20, 2018Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTDInventors: Yunhua Zhang, Jieyong Meng, Qingchang Chen, Yihong Liu, Shilin Shen
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Publication number: 20170178799Abstract: The present disclosure relates to a tank of a high-voltage generator including a tank body and a tank lid. There is an opening in the tank lid. The opening is connected to the bellows so as to counteract the volume change of the transformer oil and avoid generation of bubbles. The tank includes a positive transformer, a negative transformer, a bellows, and other components. The high-voltage winding is embedded in the PCBs. The outer insulating bushing is covered by the PCBs so as to improve the insulativity between the turns of the high-voltage winding. In addition, oil barriers may be placed between the positive and the negative transformers, or between the transformers and the ground so as to eliminate the bridge breakdown effect and make the electric field uniform. By means of said measures, the present disclosure improves the stability of the high-voltage generator.Type: ApplicationFiled: February 28, 2017Publication date: June 22, 2017Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.Inventors: Yunhua ZHANG, Jieyong MENG, Qingchang CHEN, Yihong LIU, Shilin SHEN