Patents by Inventor Qingyuan Zhao
Qingyuan Zhao 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: 20220267889Abstract: A fabrication method of a silicon nanoneedle array with ultra-high aspect ratio includes the following steps: spin-coating two photoresist layers of methyl methacrylate (MMA) and polymethyl methacrylate (PMMA) A2 on a silicon substrate; subjecting the silicon substrate coated with the two photoresist layers of MMA and PMMA A2 to electron beam lithography to form a photoresist pattern on the silicon substrate; subjecting the silicon substrate on which the photoresist pattern is formed to electron beam evaporation (EBE) to deposit an Al film layer on the silicon substrate; subjecting the silicon substrate on which the Al film layer is deposited to stripping to obtain an Al film array deposited on the silicon substrate, which provides a mask for the subsequent inductively coupled plasma (ICP) etching process; and subjecting the silicon substrate covered with the Al mask to ICP silicon etching to obtain a silicon nanoneedle array structure.Type: ApplicationFiled: October 26, 2020Publication date: August 25, 2022Applicant: NANJING UNIVERSITYInventors: Xuecou TU, Mengxin LIU, Lin KANG, Labao ZHANG, Xiaoqing JIA, Qingyuan ZHAO, Jian CHEN, Peiheng WU
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Patent number: 11374554Abstract: An apparatus and method for implementing a compact and tunable microwave resonator using NbN kinetic inductance, comprising: a DC source, an attenuator, an oxygen-free copper cavity, a superconducting coil, a first-stage amplifier, a second-stage amplifier, a vector network analyzer and a control computer, a small-sized tunable resonator whose size is reduced by 10-20 times as compared with an ordinary thin film microwave resonator is implemented in a microwave frequency band by using high kinetic inductance of an ultra-thin NbN thin film in a superconducting state, the tunability of the resonator lies in that the ultra-thin NbN thin film serves as the LC resonance circuit, a dc-SQUID is connected to the end of the resonator, and a change in the external magnetic field causes a change in the equivalent inductance of the dc-SQUID, thereby changing the total inductance of the resonator and modulating the resonant frequency of the resonance circuit.Type: GrantFiled: April 2, 2020Date of Patent: June 28, 2022Assignee: NANJING UNIVERSITYInventors: Guozhu Sun, Xingyu Wei, Jiazheng Pan, Qingyuan Zhao, Peiheng Wu
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Patent number: 11329211Abstract: An active three-terminal superconducting device having an intersection region at which a hot spot may be controllably formed is described. The intersection region may exhibit current crowding in response to imbalances in current densities applied to channels connected to intersection region. The current crowding may form a hot spot, in which the superconducting device may exhibit a measurable resistance. In some cases, a three-terminal superconducting device may be configured to sense an amount of superconducting current flowing in a channel or loop without having to perturb the superconducting state or amount of current flowing in the channel. A three-terminal superconducting device may be used to read out a number of fluxons stored in a superconducting memory element.Type: GrantFiled: August 13, 2020Date of Patent: May 10, 2022Assignee: Massachusetts Institute of TechnologyInventors: Adam N. McCaughan, Karl K. Berggren, Qingyuan Zhao
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Publication number: 20210257995Abstract: An apparatus and method for implementing a compact and tunable microwave resonator using NbN kinetic inductance, comprising: a DC source, an attenuator, an oxygen-free copper cavity, a superconducting coil, a first-stage amplifier, a second-stage amplifier, a vector network analyzer and a control computer, a small-sized tunable resonator whose size is reduced by 10-20 times as compared with an ordinary thin film microwave resonator is implemented in a microwave frequency band by using high kinetic inductance of an ultra-thin NbN thin film in a superconducting state, the tunability of the resonator lies in that the ultra-thin NbN thin film serves as the LC resonance circuit, a dc-SQUID is connected to the end of the resonator, and a change in the external magnetic field causes a change in the equivalent inductance of the dc-SQUID, thereby changing the total inductance of the resonator and modulating the resonant frequency of the resonance circuit.Type: ApplicationFiled: April 2, 2020Publication date: August 19, 2021Inventors: GUOZHU SUN, XINGYU WEI, JIAZHENG PAN, QINGYUAN ZHAO, PEIHENG WU
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Publication number: 20210028343Abstract: An active three-terminal superconducting device having an intersection region at which a hot spot may be controllably formed is described. The intersection region may exhibit current crowding in response to imbalances in current densities applied to channels connected to intersection region. The current crowding may form a hot spot, in which the superconducting device may exhibit a measurable resistance. In some cases, a three-terminal superconducting device may be configured to sense an amount of superconducting current flowing in a channel or loop without having to perturb the superconducting state or amount of current flowing in the channel. A three-terminal superconducting device may be used to read out a number of fluxons stored in a superconducting memory element.Type: ApplicationFiled: August 13, 2020Publication date: January 28, 2021Applicant: Massachusetts Institute of TechnologyInventors: Adam N. McCaughan, Karl K. Berggren, Qingyuan Zhao
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Publication number: 20200380037Abstract: An information retrieval precision evaluation method and device and a computer-readable storage medium. The method includes: retrieving, by virtue of a first predetermined retrieval system, at least one first retrieval result corresponding to a predetermined keyword, and retrieving, by virtue of a second predetermined retrieval system, at least one second retrieval result corresponding to the keyword; generating a first retrieval sequence number corresponding to the first retrieval result and a second retrieval sequence number corresponding to the second retrieval result according to a preset sequence number generation rule; and analyzing the generated first retrieval sequence number and second retrieval sequence number according to a predetermined precision analysis rule to obtain precision of the first retrieval system and the second retrieval system.Type: ApplicationFiled: June 30, 2017Publication date: December 3, 2020Applicant: PING AN TECHNOLOGY (SHENZHEN) CO., LTD.Inventors: Qingyuan ZHAO, Yong WEI, Zishen LV, Liang XU, JING XIAO
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Patent number: 10749097Abstract: An active three-terminal superconducting device having an intersection region at which a hot spot may be controllably formed is described. The intersection region may exhibit current crowding in response to imbalances in current densities applied to channels connected to intersection region. The current crowding may form a hot spot, in which the superconducting device may exhibit a measurable resistance. In some cases, a three-terminal superconducting device may be configured to sense an amount of superconducting current flowing in a channel or loop without having to perturb the superconducting state or amount of current flowing in the channel. A three-terminal superconducting device may be used to read out a number of fluxons stored in a superconducting memory element.Type: GrantFiled: April 1, 2016Date of Patent: August 18, 2020Assignee: Massachusetts Institute of TechnologyInventors: Adam N. McCaughan, Karl K. Berggren, Qingyuan Zhao
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Patent number: 10691888Abstract: Disclosed are a method, a terminal, and an apparatus for extracting a headword and a computer-readable storage medium, wherein the method comprises: acquiring a text information input by a user; determining an out-edge weight of each search term of the text information; calculating a linkage-matrix for the each search term; calculating a priori score of the each search term according to a preset document library; determining a random jumping vector for the each search term according to the priori score; calculating a first preliminary score of the each search term according to the linkage-matrix and the random jumping vector; determining a second preliminary score of the each search term according to a preset part-of-speech configuration rule; determining a final degree score of the each search term according to the first preliminary score and the second preliminary score; extracting the headword of the text information according to the final degree score.Type: GrantFiled: August 30, 2017Date of Patent: June 23, 2020Assignee: PING AN TECHNOLOGY (SHENZHEN) CO., LTD.Inventors: Zishen Lv, Yong Wei, Qingyuan Zhao, Liang Xu, Jing Xiao
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Patent number: 10665634Abstract: An integrated, superconducting imaging sensor may be formed from a single, meandering nanowire. The sensor is capable of single-photon (or single-event) detection and imaging with ˜10 micron spatial resolution and sub-100-picosecond temporal resolution. The sensor may be readily scaled to large areas.Type: GrantFiled: February 2, 2017Date of Patent: May 26, 2020Assignee: Massachusetts Institute of TechnologyInventors: Qingyuan Zhao, Karl K. Berggren
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Publication number: 20190340237Abstract: Disclosed are a method, a terminal, and an apparatus for extracting a headword and a computer-readable storage medium, wherein the method comprises: acquiring a text information input by a user; determining an out-edge weight of each search term of the text information; calculating a linkage-matrix for the each search term; calculating a priori score of the each search term according to a preset document library; determining a random jumping vector for the each search term according to the priori score; calculating a first preliminary score of the each search term according to the linkage-matrix and the random jumping vector; determining a second preliminary score of the each search term according to a preset part-of-speech configuration rule; determining a final degree score of the each search term according to the first preliminary score and the second preliminary score; extracting the headword of the text information according to the final degree score.Type: ApplicationFiled: August 30, 2017Publication date: November 7, 2019Inventors: Zishen Lv, Yong Wei, Qingyuan Zhao, Liang Xu, Jing Xiao
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Publication number: 20180145110Abstract: An integrated, superconducting imaging sensor may be formed from a single, meandering nanowire. The sensor is capable of single-photon (or single-event) detection and imaging with ˜10 micron spatial resolution and sub-100-picosecond temporal resolution. The sensor may be readily scaled to large areas.Type: ApplicationFiled: February 2, 2017Publication date: May 24, 2018Applicant: Massachusetts Institute of TechnologyInventors: Qingyuan Zhao, Karl K. Berggren
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Publication number: 20180090661Abstract: An active three-terminal superconducting device having an intersection region at which a hot spot may be controllably formed is described. The intersection region may exhibit current crowding in response to imbalances in current densities applied to channels connected to intersection region. The current crowding may form a hot spot, in which the superconducting device may exhibit a measurable resistance. In some cases, a three-terminal superconducting device may be configured to sense an amount of superconducting current flowing in a channel or loop without having to perturb the superconducting state or amount of current flowing in the channel. A three-terminal superconducting device may be used to read out a number of fluxons stored in a superconducting memory element.Type: ApplicationFiled: April 1, 2016Publication date: March 29, 2018Applicant: MASSACHUSETTS INTITUTE OF TECHNOLOGYInventors: Adam N. McCaughan, Karl K. Berggren, Qingyuan Zhao Zhao
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Patent number: 9930723Abstract: An Automatic Neighbor Relation (ANR) task execution method, system and an ANR user equipment management method, apparatus are described, when an ANR function is enabled, a corresponding User Equipment (UE) is selected for the enabled ANR function, and then a Discontinuous Reception (DRX) configuration matching this ANR function is configured for the selected UE; that is, the disclosure specifically configures a matching DRX parameter for the UE selected by the ANR function, without searching a required UE from the UE configuring a Long DRX in an entire cell, thus improving efficiency and a success rate of executing an ANR task; simultaneously the disclosure only needs to perform specific configuration on the UE selected by the ANR function, without changing the configuration of all the UEs in the entire cell, thus greatly reducing an influence on a Key Performance Indicator (KPI) of the cell, and improving entire user experience satisfaction of the cell.Type: GrantFiled: October 10, 2013Date of Patent: March 27, 2018Assignee: ZTE CORPORATIONInventors: Qiuhong Yuan, Zhongying Xia, Qingyuan Zhao
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Publication number: 20150351152Abstract: An Automatic Neighbor Relation (ANR) task execution method, system and an ANR user equipment management method, apparatus are described, when an ANR function is enabled, a corresponding User Equipment (UE) is selected for the enabled ANR function, and then a Discontinuous Reception (DRX) configuration matching this ANR function is configured for the selected UE; that is, the disclosure specifically configures a matching DRX parameter for the UE selected by the ANR function, without searching a required UE from the UE configuring a Long DRX in an entire cell, thus improving efficiency and a success rate of executing an ANR task; simultaneously the disclosure only needs to perform specific configuration on the UE selected by the ANR function, without changing the configuration of all the UEs in the entire cell, thus greatly reducing an influence on a Key Performance Indicator (KPI) of the cell, and improving entire user experience satisfaction of the cell.Type: ApplicationFiled: October 10, 2013Publication date: December 3, 2015Applicant: ZTE CORPORATIONInventors: Qiuhong Yuan, Zhongying Xia, Qingyuan Zhao
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Publication number: 20120063361Abstract: The present invention discloses a system and method for discovering a remote radio unit and establishing a topology structure, which include: a base band unit sending a remote radio unit discovery message to a link connecting with a remote radio unit after starting, and the remote radio unit discovery message including a level number of a remote radio unit, and setting this level number to a minimal value; a remote radio unit which receives said remote radio unit discovery message storing the level number in the remote radio unit discovery message, and sending said remote radio unit discovery message to a next level remote radio unit connecting with said remote radio unit after adding 1 to the level number in said remote radio unit discovery message; and the remote radio unit feeding the level number back to said base band unit after obtaining the level number.Type: ApplicationFiled: May 14, 2010Publication date: March 15, 2012Inventor: Qingyuan Zhao