Patents by Inventor Feipeng Wang
Feipeng Wang 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: 11964962Abstract: Disclosed is a pyridazinone compound represented by Formula (I), or a pharmaceutically acceptable salt, prodrug, hydrate, solvate, polymorph, stereoisomer, or isotopic variant thereof. The compound can be used for preparation of medicinal products for treatment and/or prophylaxis of a disease or condition associated with thyroid hormone abnormalities. The compound has higher selectivity to TH?, better pharmacokinetic parameters, desired stability, and higher agonistic activity toward TH?.Type: GrantFiled: December 14, 2021Date of Patent: April 23, 2024Assignee: SHANDONG FIRST MEDICAL UNIVERSITY & SHANDONG ACADEMY OF MEDICAL SCIENCESInventors: Qingqiang Yao, Weilin Xie, VĂ©ronique Plantevin Krenitsky, Bo Liu, Yan Li, Ying Zhi, Ying Li, Yanling Mu, Jingyong Sun, Haiyang Wang, Zhongyu Wu, Haijiao Chen, Tiandi Ding, Yue Wang, Haoyi Sun, Feipeng Zhang, Peng Meng, Qingxu Liu, Huajie Li, Yige Wang, Shanshan Wen
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Patent number: 11945995Abstract: Disclosed are a temporary plugging agent and a preparation method thereof, and a method for temporary plugging and fracturing of a high-temperature reservoir. The temporary plugging agent includes the following components in mass fractions: acrylamide 5%, composite crosslinking agent 1%, laponite 1%, ammonium persulfate 0.1% and water 92.9%.Type: GrantFiled: December 15, 2020Date of Patent: April 2, 2024Assignee: CHINA UNIVERSITY OF PETROLEUMInventors: Tiankui Guo, Yuelong Zhang, Zengbao Wang, Ning Qi, Mingliang Luo, Feipeng Wu, Ming Chen, Xiaoqiang Liu, Jiwei Wang, Xiaozhi Wang, Yuanzhi Gong
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Publication number: 20240068936Abstract: An adaptive characteristic spectral line screening method and system based on atomic emission spectrum are provided, the method includes: using a set characteristic screening optimization method to perform a plurality of optimization rounds of characteristic screening, obtaining an initialized spectral dataset of each round of the characteristic screening and initialized characteristic population genes; obtaining an optimal characteristic population gene of each round by a set analysis method, a fitness function, and an iteration of a genetic algorithm; obtaining an optimized characteristic spectral information set when the plurality of optimization rounds reach set optimization rounds; performing combination statistics and discriminant analyses on the optimized characteristic spectral information set to complete an adaptive characteristic spectral line screening.Type: ApplicationFiled: October 10, 2022Publication date: February 29, 2024Inventors: Jia Liu, Feipeng Cui, Xiaopeng Li, Ling Liu, Hongwei Shi, Feifei Guo, Ying Zhao, Xuejing Shen, Haizhou Wang
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Publication number: 20230308338Abstract: A wireless communications system includes a pre-distortion actuator configured to receive a carrier-modulated signal and convert the carrier-modulated signal into an output signal, the pre-distortion actuator comprising a behavioral model that models a transmit chain of the system including at least one amplifier and at least one antenna and predict an input-output relationship of the transmit chain of the system between an input to the transmit chain to an output of the transmit chain. The system includes a phased antenna array configured to transmit the output signal. The phased antenna array includes a plurality of antenna elements, each antenna element electrically coupled to a respective power amplifier. The pre-distortion actuator is configured to generate the output signal by applying a correction to the carrier-modulated input signal that cancels out nonlinearities The behavioral model is updated based on feedback from a receiver from a previous output signal transmitted to the receiver.Type: ApplicationFiled: June 5, 2023Publication date: September 28, 2023Inventors: Martin S. McCormick, Feipeng Wang
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Patent number: 11671123Abstract: A wireless communications system includes a pre-distortion actuator configured to receive a carrier-modulated signal and convert the carrier-modulated signal into an output signal. The system includes one or more antennas configured to receive the output signal and transmit the output signal, one or more power amplifiers electrically coupled between the pre-distortion actuator and the one or more antennas and a receiver configured to receive the output signal over-the-air and generate feedback based on the output signal. The pre-distortion actuator is configured to generate the output signal by applying a correction to the carrier-modulated signal that cancels out nonlinearities associated with the one or more antennas and/or the one or more power amplifiers. The pre-distortion actuator is configured based on the feedback.Type: GrantFiled: February 25, 2021Date of Patent: June 6, 2023Assignee: Space Exploration Technologies Corp.Inventors: Martin S. McCormick, Feipeng Wang
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Patent number: 11665043Abstract: A wireless communications system includes a pre-distortion actuator configured to receive a carrier-modulated signal and convert the carrier-modulated signal into an output signal. The system includes one or more antennas configured to receive the output signal and transmit the output signal, one or more power amplifiers electrically coupled between the pre-distortion actuator and the one or more antennas and a receiver configured to receive the output signal over-the-air and generate feedback based on the output signal. The pre-distortion actuator is configured to generate the output signal by applying a correction to the carrier-modulated signal that cancels out nonlinearities associated with the one or more antennas and/or the one or more power amplifiers. The pre-distortion actuator is configured based on the feedback.Type: GrantFiled: February 14, 2022Date of Patent: May 30, 2023Assignee: Space Exploration Technologies Corp.Inventors: Martin S. McCormick, Feipeng Wang
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Publication number: 20230116126Abstract: The present disclosure provides a preparation method of a plasma-treated nanofiber-based hydrogen gas sensing material, including the following steps: (1) stirring a mixed solution of absolute ethanol, polyvinyl pyrrolidone (PVP), N, N-dimethylformamide, SnCl2.H2O, and Zn(CH3COO)2.2H2O uniformly on a constant-temperature magnetic stirrer to obtain a spinning solution; (2) electrospinning the spinning solution and depositing on an aluminum foil to obtain a spinning fiber; (3) annealing the spinning fiber in a muffle furnace to obtain a hydrogen gas sensing material sample; and (4) subjecting the hydrogen gas sensing material sample to a vacuum argon plasma treatment with a Hall ion source to obtain the nanofiber-based hydrogen gas sensing material. In the method, nanofibers are prepared by electrospinning and subjected to the vacuum argon plasma treatment through the Hall ion source.Type: ApplicationFiled: December 24, 2020Publication date: April 13, 2023Applicant: CHONGQING UNIVERSITYInventors: Feipeng WANG, Kelin HU, Zijia SHEN, Hongcheng LIU, Jianglin XIONG, Jian LI, Youyuan WANG, Weigen CHEN, Lin DU, Kaizheng WANG, Qi ZHAO
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Publication number: 20220255786Abstract: A wireless communications system includes a pre-distortion actuator configured to receive a carrier-modulated signal and convert the carrier-modulated signal into an output signal. The system includes one or more antennas configured to receive the output signal and transmit the output signal, one or more power amplifiers electrically coupled between the pre-distortion actuator and the one or more antennas and a receiver configured to receive the output signal over-the-air and generate feedback based on the output signal. The pre-distortion actuator is configured to generate the output signal by applying a correction to the carrier-modulated signal that cancels out nonlinearities associated with the one or more antennas and/or the one or more power amplifiers. The pre-distortion actuator is configured based on the feedback.Type: ApplicationFiled: February 14, 2022Publication date: August 11, 2022Inventors: Martin S. McCormick, Feipeng Wang
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Patent number: 11283666Abstract: A wireless communications system includes a stochastic pre-distortion actuator configured to receive a carrier-modulated signal and convert the carrier-modulated signal into an output signal. The system includes one or more antennas configured to receive the output signal and transmit the output signal, one or more power amplifiers electrically coupled between the pre-distortion actuator and the one or more antennas and a receiver configured to receive the output signal over-the-air and generate feedback based on the output signal. The pre-distortion actuator is configured to generate the output signal by applying a correction to the carrier-modulated signal that cancels out nonlinearities associated with the one or more antennas and/or the one or more power amplifiers. The pre-distortion actuator is configured based on the feedback.Type: GrantFiled: February 25, 2021Date of Patent: March 22, 2022Assignee: Space Exploration Technologies Corp.Inventors: Martin S. McCormick, Feipeng Wang
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Patent number: 9941842Abstract: A power amplifier bias circuit having high dynamic range and low memory is disclosed. In an exemplary embodiment, an apparatus includes an output stage configured to generate a biased RF signal based on a first DC signal and a filtered signal. The apparatus also includes a low pass filter configured to filter the biased RF signal to generate the filtered signal.Type: GrantFiled: January 16, 2015Date of Patent: April 10, 2018Assignee: QUALCOMM IncorporatedInventors: Shu-Hsien Liao, Feipeng Wang, Cheng-Han Wang
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Publication number: 20180041244Abstract: The disclosure provides a device for impedance matching and switching for coupling a transmit path and a receive path of a transceiver to at least one antenna. The device can have an on-chip matching circuitry disposed within a chip and off-chip matching circuitry disposed outside the chip but coupled to the on-chip matching circuitry. The device can have a controller coupled to the on-chip matching circuitry configured to switch the on-chip matching circuitry to provide matched impedance for the transmit path in a transmit mode and matched impedance for the receive path in a receive mode. The off-chip matching circuitry can provide high impedance in the receive path in the transmit mode and provide high impedance in the transmit path in the receive mode. The resonant matching circuit can also have an antenna node coupling the transmit path and the receive path to the at least one antenna.Type: ApplicationFiled: February 27, 2017Publication date: February 8, 2018Inventors: Yongwang DING, Feipeng WANG, Ji-Hoon PARK, Pingli HUANG, Yido KOO
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Publication number: 20160211804Abstract: A power amplifier bias circuit having high dynamic range and low memory is disclosed. In an exemplary embodiment, an apparatus includes an output stage configured to generate a biased RF signal based on a first DC signal and a filtered signal. The apparatus also includes a low pass filter configured to filter the biased RF signal to generate the filtered signal.Type: ApplicationFiled: January 16, 2015Publication date: July 21, 2016Inventors: Shu-Hsien Liao, Feipeng Wang, Cheng-Han Wang
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Publication number: 20150160279Abstract: An input signal is transmitted to a component. A distortion associated with the component is determined based, at least in part, on an output signal generated by the component in response to the input signal. A distortion error measurement associated with the component is determined based, at least in part, on the distortion and the output signal generated by the component. A memory effect and the associated nonlinearity within the component are quantified based, at least in part, on the distortion error measurement.Type: ApplicationFiled: December 8, 2014Publication date: June 11, 2015Inventors: Hao Zhou, Feipeng Wang, Haojen Cheng, Volodymyr Rakytyanskyy
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Patent number: 8180304Abstract: A technique for efficient power amplification includes providing multiple baseband signals to an amplifier. The signals may be converted to RF and combined through one or more impedance inverters.Type: GrantFiled: April 2, 2008Date of Patent: May 15, 2012Assignee: Quantenna Communications, Inc.Inventors: Ssu-Pin Ma, Thai Nguyen, Feipeng Wang
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Publication number: 20090253389Abstract: A technique for efficient power amplification includes providing multiple baseband signals to an amplifier. The signals may be converted to RF and combined through one or more impedance inverters.Type: ApplicationFiled: April 2, 2008Publication date: October 8, 2009Inventors: Ssu-Pin Ma, Thai Nguyen, Feipeng Wang