Patents by Inventor Shifeng Zhang
Shifeng 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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Publication number: 20250153619Abstract: The application relates to an invisible cover tie-down. A retainer is used to attach a trim cover to a seat cushion. The retainer has a weakened region between a region that attached to the trim cover and a region that extends into a slot in the seat cushion. The weakened region may be formed by reducing the thickness, such as by debossing (removing a layer of material), or by providing fewer layers. Alternatively or additionally, it may be formed by perforations along a fold line.Type: ApplicationFiled: September 10, 2024Publication date: May 15, 2025Applicant: Lear CorporationInventors: Shifeng ZHANG, Yao YAO, Jing XU, Yong YANG, Chandrashekar SIMHA
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Publication number: 20240235577Abstract: This application relates to the field of artificial intelligence, and discloses a data encoding method, a data decoding method, and data processing apparatuses. Both the data encoding method and the data decoding method relate to an invertible flow-based model. The invertible flow-based model includes a target invertible flow layer, a model parameter of the target invertible flow layer is used to constrain an auxiliary variable generated in an inverse transform processing process, an operation corresponding to the target invertible flow layer includes a multiplication operation and a division operation that are determined based on the model parameter, and the auxiliary variable is an increment of a product of the multiplication operation or a remainder generated through the division operation.Type: ApplicationFiled: March 27, 2024Publication date: July 11, 2024Inventors: Shifeng ZHANG, Ning KANG, Tom RYDER, Zhenguo LI
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Publication number: 20230401756Abstract: A data encoding method includes obtaining to-be-encoded data; processing the to-be-encoded data by using a volume preserving flow model to obtain a hidden variable output, where the volume preserving flow model includes a target volume preserving flow layer, an operation corresponding to the target volume preserving flow layer is an invertible operation that meets a volume preserving flow constraint, the target volume preserving flow layer is used to perform a multiplication operation on a preset coefficient and first data input to the target volume preserving flow layer, and the preset coefficient is not 1; and encoding the hidden variable output to obtain encoded data.Type: ApplicationFiled: August 25, 2023Publication date: December 14, 2023Inventors: Shifeng Zhang, Chen Zhang, Ning Kang, Zhenguo Li
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Patent number: 11565832Abstract: A harmless low-consumption on-orbit continuous launch system includes a satellite platform, a launch apparatus and a plurality of CubeSats. The satellite platform carries the launch apparatus and dozens or hundreds of CubeSats, and is launched from a ground into an orbit for on-orbit operation. The launch apparatus is configured to store the plurality of CubeSats and provide power for on-orbit launching of each of the CubeSats. A solid working medium in the launch apparatus is activated by heating to undergo a phase change, and the activated solid working medium expands instantly and is converted into a high-pressure gaseous working medium. The high-pressure gaseous working medium does work to eject the CubeSats, such that the CubeSats obtain a speed increment. The CubeSats enter a transfer orbit towards different target spacecraft through the speed increment applied by the launch apparatus to perform a plurality of different on-orbit serving missions.Type: GrantFiled: May 26, 2022Date of Patent: January 31, 2023Assignee: NATIONAL UNIVERSITY OF DEFENSE TECHNOLOGYInventors: Yueneng Yang, Wenjun Hu, Chaoyan Zhang, Shifeng Zhang, Xin Xu, Shurui Huang, Xiaotong Bu, Zhiyang Liu
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Publication number: 20220380066Abstract: A harmless low-consumption on-orbit continuous launch system includes a satellite platform, a launch apparatus and a plurality of CubeSats. The satellite platform carries the launch apparatus and dozens or hundreds of CubeSats, and is launched from a ground into an orbit for on-orbit operation. The launch apparatus is configured to store the plurality of CubeSats and provide power for on-orbit launching of each of the CubeSats. A solid working medium in the launch apparatus is activated by heating to undergo a phase change, and the activated solid working medium expands instantly and is converted into a high-pressure gaseous working medium. The high-pressure gaseous working medium does work to eject the CubeSats, such that the CubeSats obtain a speed increment. The CubeSats enter a transfer orbit towards different target spacecraft through the speed increment applied by the launch apparatus to perform a plurality of different on-orbit serving missions.Type: ApplicationFiled: May 26, 2022Publication date: December 1, 2022Applicant: NATIONAL UNIVERSITY OF DEFENSE TECHNOLOGYInventors: Yueneng YANG, Wenjun HU, Chaoyan ZHANG, Shifeng ZHANG, Xin XU, Shurui HUANG, Xiaotong BU, Zhiyang LIU
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Patent number: 11124282Abstract: The present invention discloses bionic stratospheric airships, related to the technical field of aircraft. The hull shape of the bionic stratospheric airship is obtained by lofting the shape of physalia physalis; one or more buoyancy gasbags, one or more ballonets, and a heat regulating gasbag are provided inside the hull; the buoyancy gasbags are filled with lighter-than-air gas and are provided at an upper layer inside the hull; the ballonets are filled with air and are provided at a lower layer inside the hull; the heat regulating gasbag is provided at a middle layer inside the hull and is filled with a working medium reversibly regulated between a gas state and a liquid state; and a thermodynamic cycle device for heating or pressurizing the working medium is provided inside the heat regulating gasbag.Type: GrantFiled: May 24, 2019Date of Patent: September 21, 2021Assignee: NATIONAL UNIVERSITY OF DEFENSE TECHNOLOGYInventors: Yueneng Yang, Xin Xu, Shifeng Zhang, Wei Zheng, Ye Yan, Jianghua Zhou
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Publication number: 20190359309Abstract: The present invention discloses bionic stratospheric airships, relate to the technical field of aircrafts. the hull shape of the bionic stratospheric airship is obtained by lofting the shape of physalia physalis; one or more buoyancy gasbags, one or more ballonets, and a heat regulating gasbag are provided inside the hull; the buoyancy gasbags are filled with lighter-than-air gas and are provided at an upper layer inside the hull; the ballonets are filled with air and are provided at a lower layer inside the hull; the heat regulating gasbag is provided at a middle layer inside the hull and is filled with a working medium reversibly regulated between a gas state and a liquid state; and a thermodynamic cycle device for heating or pressurizing the working medium is provided inside the heat regulating gasbag.Type: ApplicationFiled: May 24, 2019Publication date: November 28, 2019Applicant: National University of Defense TechnologyInventors: Yueneng YANG, Xin XU, Shifeng ZHANG, Wei ZHENG, Ye YAN, Jianghua ZHOU
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Patent number: 9413370Abstract: An anti process variation self-adjustable on-chip oscillator has been disclosed according to the present invention. The on-chip oscillator includes the following components integrated on a same chip: a reference oscillation unit for producing reference pulse; an oscillation unit to be adjusted for producing output pulse; and a self-adjustable logic control unit for receiving the reference pulse and output pulse, and for transmitting a corresponding adjustment signal to the oscillation unit to be adjusted based on the received reference pulse and output pulse to control the oscillation unit to be adjusted to perform the frequency adjustment to the output pulse. The reference pulse required for adjusting the frequency can be generated by the reference oscillation unit integrated on-chip, so that self-adjustment can be achieved on-chip, decrease the cost of the chip compared with off-chip adjustment.Type: GrantFiled: August 21, 2015Date of Patent: August 9, 2016Assignee: ZHEJIANG UNIVERSITYInventors: Yan Han, Yuji Qian, Shifeng Zhang, Jun Sun, Xiaopeng Liu
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Publication number: 20150365096Abstract: An anti process variation self-adjustable on-chip oscillator has been disclosed according to the present invention. The on-chip oscillator includes the following components integrated on a same chip: a reference oscillation unit for producing reference pulse; an oscillation unit to be adjusted for producing output pulse; and a self-adjustable logic control unit for receiving the reference pulse and output pulse, and for transmitting a corresponding adjustment signal to the oscillation unit to be adjusted based on the received reference pulse and output pulse to control the oscillation unit to be adjusted to perform the frequency adjustment to the output pulse. The reference pulse required for adjusting the frequency can be generated by the reference oscillation unit integrated on-chip, so that self-adjustment can be achieved on-chip, decrease the cost of the chip compared with off-chip adjustment.Type: ApplicationFiled: August 21, 2015Publication date: December 17, 2015Inventors: Yan Han, Yuji Qian, Shifeng Zhang, Jun Sun, Xiaopeng Liu