Patents by Inventor Zhaoyun Duan
Zhaoyun Duan 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: 20240111150Abstract: The present disclosure provides a control method for a display panel, a control device thereof, and a display device. This control method includes: obtaining spatial position coordinates of a pupil of a user; determining coordinates of a gaze point in a display area of a display panel viewed by the user according to the spatial position coordinates of the pupil; determining an area range that the pupil of the user is gazing in the display area according to the spatial position coordinates of the pupil, the coordinates of the gaze point and a preset visual angle; determining a gaze area and a non-gaze area in the display area according to the area range, wherein the gaze area is adjacent to the non-gaze area; and adjusting a first gate driving signal input to the gaze area and a second gate driving signal input to the non-gaze area.Type: ApplicationFiled: May 25, 2021Publication date: April 4, 2024Inventors: Kexin Hao, Xin Duan, Shuhuan Yu, Bin Wang, Shaoru Zhang, Zhaoyun Gu, Jiaqi Fan
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Patent number: 10418219Abstract: A left-handed material extended interaction klystron includes: an input cavity, a middle cavity, an output cavity, first-section drift tube and a second-section drift tube; wherein the input cavity, the middle cavity and the output cavity are all cylindrical resonant cavities having arrays of Complementary electric Split-Ring Resonator (CeSRR) unit cells provided therein; wherein a first side of the input cavity is an input channel of an electron beam, a second side connects the middle cavity via the first-section drift tube; a first T-shaped coaxial input structure is provided in the input cavity; a first side of the output cavity is for connecting a collector, a second side of the output cavity connects the middle cavity via the second-section drift tube, a second T-shaped coaxial output structure is provided in the output cavity.Type: GrantFiled: November 13, 2018Date of Patent: September 17, 2019Assignee: University of Electronic Science and Technology of ChinaInventors: Zhaoyun Duan, Xin Wang, Xirui Zhan, Fei Wang, Shifeng Li, Zhanliang Wang, Yubin Gong
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Publication number: 20190057831Abstract: A left-handed material extended interaction klystron includes: an input cavity, a middle cavity, an output cavity, first-section drift tube and a second-section drift tube; wherein the input cavity, the middle cavity and the output cavity are all cylindrical resonant cavities having arrays of Complementary electric Split-Ring Resonator (CeSRR) unit cells provided therein; wherein a first side of the input cavity is an input channel of an electron beam, a second side connects the middle cavity via the first-section drift tube; a first T-shaped coaxial input structure is provided in the input cavity; a first side of the output cavity is for connecting a collector, a second side of the output cavity connects the middle cavity via the second-section drift tube, a second T-shaped coaxial output structure is provided in the output cavity.Type: ApplicationFiled: November 13, 2018Publication date: February 21, 2019Inventors: Zhaoyun Duan, Xin Wang, Xirui Zhan, Fei Wang, Shifeng Li, Zhanliang Wang, Yubin Gong
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Patent number: 10090584Abstract: The present invention provides a miniature wideband antenna for 5G, which includes a dielectric substrate, a coplanar waveguide feed structure on a front of the dielectric substrate, a main radiator, a second and third radiators and a first radiator on a back of the dielectric substrate. The antenna is small in size with operation band of 3 GHz-30 GHz which covers the various 5G frequency band and covers the current wireless modes of Wi-MAX, W-LAN, UWB and so on. The antenna guarantees future compatibility for various complicated communication modes and has good perspectives for many applications. Based on the antenna, the double-unit and four-unit MIMO antenna adopts orthogonal polarization and metamaterial unit. Thus, high unit separation is achieved without increase on the size of the antenna unit. The present invention has wide applications in small mobile device such as cell phone and laptop.Type: GrantFiled: March 22, 2017Date of Patent: October 2, 2018Assignee: University of Electronic Science and Technology of ChinaInventors: Zhaoyun Duan, Fei Wang, Xin Wang, Zhanliang Wang, Qing Zhou, Xinyi Li, Yubin Gong
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Publication number: 20170240294Abstract: A three-dimensional infrared laser aircraft landing-guiding system with high directivity is described. The system utilizes a highly penetrable and highly directional infrared laser source to generate an optical image via an optical image generating apparatus. The generated optical image involves the information for aircraft landing, and the information covers a large range of flying areas to make the optical image detectable for an aircraft. With the information provided by the optical image, the aircraft can be guided to the best landing path. The infrared laser source is highly directional and can emit a laser light to specific directions, reducing waste of energy, increasing navigation distances, and improving anti-jamming capability.Type: ApplicationFiled: April 13, 2015Publication date: August 24, 2017Inventors: Hongsheng Chen, Zhaoyun Duan, Min Chen, Tsong-Shin Lim
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Publication number: 20170194720Abstract: The present invention provides a miniature wideband antenna for 5G, which includes a dielectric substrate, a coplanar waveguide feed structure on a front of the dielectric substrate, a main radiator, a second and third radiators and a first radiator on a back of the dielectric substrate. The antenna is small in size with operation band of 3 GHz-30 GHz which covers the various 5G frequency band and covers the current wireless modes of Wi-MAX, W-LAN, UWB and so on. The antenna guarantees future compatibility for various complicated communication modes and has good perspectives for many applications. Based on the antenna, the double-unit and four-unit MIMO antenna adopts orthogonal polarization and metamaterial unit. Thus, high unit separation is achieved without increase on the size of the antenna unit. The present invention has wide applications in small mobile device such as cell phone and laptop.Type: ApplicationFiled: March 22, 2017Publication date: July 6, 2017Inventors: Zhaoyun Duan, Fei Wang, Xin Wang, Zhanliang Wang, Qing Zhou, Xinyi Li, Yubin Gong
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Patent number: 9583301Abstract: A metamaterial high-power microwave source relates to the fields of vacuum electronic technology, particle physics, and accelerators, including: a cathode, a metamaterial slow-wave structure (SWS), a waveguide and coaxial line coupler located at one end of the metamaterial SWS and a collector component located at the other end of the metamaterial SWS. The metamaterial SWS provided by the present invention is greatly smaller than a rectangular waveguide having the same frequency, so as to realize a miniaturization of devices and facilitate integration with semiconductor devices. The waveguide and coaxial line coupler has a good transmission characteristic and a low reflection in a relatively wide frequency band, which guarantees a high-efficient coupling output of a signal. Moreover, the metamaterial high-power microwave source has a high-power output and a pulsed output power reaching a megawatt level.Type: GrantFiled: October 9, 2015Date of Patent: February 28, 2017Assignee: University of Electronic Science and Technology of ChinaInventors: Zhaoyun Duan, Xianfeng Tang, Xinwu Ma, Xiang Huang, Zhanliang Wang, Tao Tang, Yanshuai Wang, Yubin Gong
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Patent number: 9425020Abstract: A miniaturized all-metal slow-wave structure includes: a circular metal waveguide; and metal electric resonance units provided in the circular metal waveguide; wherein the metal electric resonance unit provided in the circular metal waveguide includes a ring-shaped electric resonance metal plate with an electron beam tunnel provided on a center thereof, and a ring plate body of the ring-shaped electric resonance metal plate has two auricle-shaped through-holes symmetrically aside an axial-section; a main body of the auricle-shaped through-hole is a ring-shaped hole, two column holes extending towards a center of a circle are provided at two ends of the ring-shaped hole; the ring-shaped electric resonance metal plates are perpendicular to an axis and are provided inside the circular metal waveguide with equal intervals therebetween, external surfaces of the ring-shaped electric resonance metal plates are mounted on an internal surface of the circular metal waveguide.Type: GrantFiled: December 16, 2014Date of Patent: August 23, 2016Assignee: niversity of Electronic Science and Technology of ChinaInventors: Zhaoyun Duan, Yanshuai Wang, Xiang Huang, Xinwu Ma, Tao Tang, Minzhi Huang, Zhanliang Wang, Yubin Gong
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Publication number: 20160126051Abstract: A metamaterial high-power microwave source relates to the fields of vacuum electronic technology, particle physics, and accelerators, including: a cathode, a metamaterial slow-wave structure (SWS), a waveguide and coaxial line coupler located at one end of the metamaterial SWS and a collector component located at the other end of the metamaterial SWS. The metamaterial SWS provided by the present invention is greatly smaller than a rectangular waveguide having the same frequency, so as to realize a miniaturization of devices and facilitate integration with semiconductor devices. The waveguide and coaxial line coupler has a good transmission characteristic and a low reflection in a relatively wide frequency band, which guarantees a high-efficient coupling output of a signal. Moreover, the metamaterial high-power microwave source has a high-power output and a pulsed output power reaching a megawatt level.Type: ApplicationFiled: October 9, 2015Publication date: May 5, 2016Inventors: Zhaoyun Duan, Xianfeng Tang, Xinwu Ma, Xiang Huang, Zhanliang Wang, Tao Tang, Yanshuai Wang, Yubin Gong
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Publication number: 20150155128Abstract: A miniaturized all-metal slow-wave structure includes: a circular metal waveguide; and metal electric resonance units provided in the circular metal waveguide; wherein the metal electric resonance unit provided in the circular metal waveguide includes a ring-shaped electric resonance metal plate with an electron beam tunnel provided on a center thereof, and a ring plate body of the ring-shaped electric resonance metal plate has two auricle-shaped through-holes symmetrically aside an axial-section; a main body of the auricle-shaped through-hole is a ring-shaped hole, two column holes extending towards a center of a circle are provided at two ends of the ring-shaped hole; the ring-shaped electric resonance metal plates are perpendicular to an axis and are provided inside the circular metal waveguide with equal intervals therebetween, external surfaces of the ring-shaped electric resonance metal plates are mounted on an internal surface of the circular metal waveguide.Type: ApplicationFiled: December 16, 2014Publication date: June 4, 2015Inventors: Zhaoyun Duan, Yanshuai Wang, Xiang Huang, Xinwu Ma, Tao Tang, Minzhi Huang, Zhanliang Wang, Yubin Gong
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Patent number: 8837551Abstract: A method for generating high power electromagnetic radiation based on double-negative metamaterial (DNM), includes providing electrons of an electron beam moving in a vacuum close to an interface between the DNM and the vacuum at a predetermined average speed larger than a phase velocity of an electromagnetic wave propagating in the DNM so as to generate coherent high power radiation. The method can be applied but not limited to high power and compact Terahertz radiation sources and Cherenkov particle detectors and emitters.Type: GrantFiled: August 20, 2012Date of Patent: September 16, 2014Assignee: University of Electronic Science and Technology of ChinaInventors: Zhaoyun Duan, Xin Guo, Chen Guo, Yubin Gong, Min Chen
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Publication number: 20140048725Abstract: A method for generating high power electromagnetic radiation based on double-negative metamaterial (DNM), includes providing electrons of an electron beam moving in a vacuum close to an interface between the DNM and the vacuum at a predetermined average speed larger than a phase velocity of an electromagnetic wave propagating in the DNM so as to generate coherent high power radiation. The method can be applied but not limited to high power and compact Terahertz radiation sources and Cherenkov particle detectors and emitters.Type: ApplicationFiled: August 20, 2012Publication date: February 20, 2014Inventors: Zhaoyun Duan, Xin Guo, Chen Guo, Yubin Gong, Min Chen