Patents by Inventor Weiwei Gao
Weiwei Gao 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).
-
Patent number: 11979606Abstract: Methods and apparatuses of encoding a video stream using video point cloud coding include obtaining a source point cloud; generating a geometry map and a texture map based on the source point cloud; generating a reconstructed geometry map and a reconstructed texture map using lossy coding without using recoloring, wherein a resolution of the reconstructed geometry map is same as a resolution of the reconstructed texture map; obtaining a point of the source point cloud corresponding to a geometry pixel of the geometry map and a texture pixel of the texture map; selecting a color of the texture pixel based on a color of the obtained point; and generating an encoded video stream based on the selected color, the geometry map, and the texture map.Type: GrantFiled: October 6, 2021Date of Patent: May 7, 2024Assignee: TENCENT AMERICA LLCInventors: Xiang Zhang, Wen Gao, Shan Liu, Weiwei Feng, Bing Jian
-
Patent number: 11967316Abstract: Embodiments of this application disclose method and apparatus for positioning a target audio signal by an audio interaction device, and an audio interaction device The method includes: obtaining audio signals in a plurality of directions in a space, and performing echo cancellation on the audio signal, the audio signal including a target-audio direct signal; obtaining weights of a plurality of time-frequency points in the audio signals, a weight of each time-frequency point indicating, at the time-frequency point, a relative proportion of the target-audio direct signal in the audio signals; weighting time-frequency components of the audio signal at the plurality of time-frequency points separately for each of the plurality of directions by using the weights of the plurality of time-frequency points, to obtain a weighted audio signal energy distribution; and obtaining a sound source azimuth corresponding to the target-audio direct signal in the audio signals accordingly.Type: GrantFiled: February 23, 2021Date of Patent: April 23, 2024Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Jimeng Zheng, Ian Ernan Liu, Yi Gao, Weiwei Li
-
Publication number: 20240102955Abstract: A non-invasive time domain reflection probe calibration method includes: using different volume ratio of ethanol and deionized water mixed solution to calculate a test target's medium weight coefficient and waveguide length of the non-invasive time domain reflection probes; using different concentrations of NaCl solutions to calibrate a waveguide geometric dimensioning of the non-invasive time domain reflection probes; preparing compacted soil samples with known different moisture contents and densities, and calibrating a correlation parameter of compacted soil samples' dielectric constant and conductivity with moisture content and density. The method not only determines the sensitivity of the test target medium of the non-invasive time domain reflection probes, but also obtains the waveguide length and geometric dimensioning of the probe, and realizes an accurate test of moisture content and density of the soil.Type: ApplicationFiled: July 28, 2023Publication date: March 28, 2024Applicants: China Jikan Research Institute Of Engineering Investigations And Design, Co.,Ltd, Xi'an Jiaotong UniversityInventors: Jie CAO, Yonglin YANG, Zaixin WAN, Peng GAO, Qingyi MU, Dongjing WANG, Yuanqiang ZHOU, Zhi LIU, Long ZHANG, Hui LI, Jian CHEN, Teng YANG, Lei RAN, Jiao LIN, Xiao DONG, Shuai LIU, Weiwei ZHAO
-
Publication number: 20230310702Abstract: Provided is a self-assembling peptide, a preparation method, the self-assembling peptide formulations and use, and it is related to the field of biotechnology. The self-assembling peptide provided by the present disclosure has a general formula as shown in AC-Pro-X1-X3-X2-X3-X1-X3-X2-Pro-amide. Through experiments, the inventors of the present disclosure found that the self-assembling peptide provided by the present disclosure, because solubility is high and difficulty of synthesis and purification is less compared with a traditional self-assembling peptide, is more feasible for industrial production, and even cheaper to produce. In mass synthesis and purification, the number of purification decreases, the single purification amount increases, the purity of a crude peptide can reach 90% or more, and the cost is greatly reduced.Type: ApplicationFiled: May 19, 2021Publication date: October 5, 2023Applicant: Success Bio-Tech Co., Ltd.Inventors: Shang Zhang, Fangmin Li, Lichang Gao, Pin Wang, Jinhui Feng, Yuanxue Liu, Xudong Zhang, Changfeng Liu, Chengru Zhao, Lili Zhao, Junying Guo, Zaiqing Zhang, Yongli Yan, Chunxia Zhang, Weiwei Gao, Huan Bai
-
Patent number: 11674242Abstract: Provided is a method of manufacturing fiber with aligned porous structure, an apparatus, and applications of the fiber. The apparatus comprises: a fiber extrusion unit, a freezing unit, and a collection unit for collecting the frozen fibers, wherein fibers extruded from the fiber extrusion unit pass through the freezing unit. Continuous and large scale preparation of such fiber with aligned porous structure is achieved by combining directional freezing and solution spinning.Type: GrantFiled: March 13, 2020Date of Patent: June 13, 2023Assignee: ZHEJIANG UNIVERSITYInventors: Hao Bai, Ying Cui, Yujie Wang, Weiwei Gao
-
Publication number: 20230051094Abstract: The present disclosure relates to devices, e.g, extracorporeal blood purification (EBP) devices, which comprise a cartridge or sorbent comprising a cellular membrane derived from a cell. The present disclosure also relates methods for removing or reducing a substance, e.g, an undesirable substance, from a fluid, e.g, a subject’s blood, using the devices or EBP devices.Type: ApplicationFiled: January 18, 2021Publication date: February 16, 2023Applicant: Arytha Biosciences LLCInventor: Weiwei Gao
-
Patent number: 11542411Abstract: The invention utilizes swelling and fusion effects of graphene oxide in a solvent to implement cross-linked bonding of a graphene material itself and materials such as polymers, metal, paper, glass, carbon materials, and ceramics. The present invention not only overcomes the shortcoming in traditional adhesives of residual formaldehyde, but also has short drying time, high bonding strength and high corrosion resistance. The present invention is widely applied in the fields of aviation, aerospace, automobiles, machinery, construction, chemical, light industry, electronics, electrical appliances, and daily life, etc.Type: GrantFiled: March 13, 2018Date of Patent: January 3, 2023Assignee: HANGZHOU GAOXI TECHNOLOGY CO., LTD.Inventors: Chao Gao, Zheng Li, Chunxiao Zhang, Dan Chang, Chen Chen, Weiwei Gao, Yan Guo, Yi Han
-
Publication number: 20220380556Abstract: The present invention relates to processes and systems for preparing nanoparticles, cellular or viral membranes and/or cellular or viral membrane coated nanoparticles using or comprising, inter alia, a multi-inlet vortexing reactor, tangential flow filtration (TFF) and/or a high shear fluid processor such as a microfluidizer (or a microfluidizer processor). The present invention also relates to the nanoparticles, cellular or viral membranes and/or cellular or viral membrane coated nanoparticles prepared by the present processes and systems, and the uses and/or applications of the nanoparticles, cellular or viral membranes and/or cellular or viral membrane coated nanoparticles.Type: ApplicationFiled: June 9, 2022Publication date: December 1, 2022Applicant: ARYTHA BIOSCIENCES, LLCInventors: Weiwei GAO, Che-Ming Jack HU
-
Publication number: 20220372234Abstract: The present invention relates to processes and systems for preparing nanoparticles, cellular or viral membranes and/or cellular or viral membrane coated nanoparticles using or comprising, inter alia, a multi-inlet vortexing reactor, tangential flow filtration (TFF) and/or a high shear fluid processor such as a microfluidizer (or a microfluidizer processor). The present invention also relates to the nanoparticles, cellular or viral membranes and/or cellular or viral membrane coated nanoparticles prepared by the present processes and systems, and the uses and/or applications of the nanoparticles, cellular or viral membranes and/or cellular or viral membrane coated nanoparticles.Type: ApplicationFiled: May 23, 2022Publication date: November 24, 2022Applicant: ARYTHA BIOSCIENCES, LLCInventors: Weiwei GAO, Che-Ming Jack HU
-
Publication number: 20220362162Abstract: The present disclosure relates to nanoparticles containing cellular membrane and uses thereof. The nanoparticle comprises an interior compartment (or an inner core) and an outer surface (or shell) comprising a cellular membrane derived from a cell, said interior compartment (or an inner core) not providing a solid support to said cellular membrane in said outer surface (or shell). The present disclosure also relates to processes of making the nanoparticles. The present disclosure further relates to compositions comprising the nanoparticles and methods of using the nanoparticles.Type: ApplicationFiled: November 25, 2019Publication date: November 17, 2022Applicants: ARYTHA BIOSCIENCES, LLC, CELLICS THERAPEUTICS INC.Inventors: Weiwei GAO, Huiqing ZHU, Jian GUAN, Yu-Wen LI
-
Patent number: 11486086Abstract: Disclosed in the present disclosure are a self-fused graphene fiber and a method of preparing the same. Dried graphene oxide fibers are soaked in a solvent to swell and then the fibers are pulled out and coalesced. After being dried, the graphene oxide fibers are fused together, and then are further reduced to obtain a self-fused graphene fiber. The entire self-fusion process can be quickly finished within one minute without adding any additional binder. The operation is simple and time-saving. The process is environmentally friendly; the bond strength is high, and the excellent properties such as outstanding mechanical strength and electrical conductivity of the graphene fibers themselves can be maintained. The present disclosure has great research and application value for further preparation of two-dimensional graphene fabrics or three-dimensional network bulks with excellent performance.Type: GrantFiled: February 27, 2018Date of Patent: November 1, 2022Assignee: ZHEJIANG UNIVERSITYInventors: Chao Gao, Dan Chang, Zheng Li, Weiwei Gao
-
Publication number: 20220331365Abstract: A biomimetic oxygen delivery carrier is provided by employing natural cell membrane as a stabilizer for fluorocarbon nanoemulsions. The resulting formulation exhibits a high capacity for delivering oxygen and can be used to successfully resuscitate subjects in need due to for example hemorrhagic shock. This natural-synthetic platform can alleviate the impact of blood shortages in clinical settings among other uses.Type: ApplicationFiled: September 1, 2020Publication date: October 20, 2022Inventors: Liangfang Zhang, Ronnie H. Fang, Jia Zhuang, Weiwei Gao
-
Patent number: 11359058Abstract: The present invention relates to processes and systems for preparing nanoparticles, cellular or viral membranes and/or cellular or viral membrane coated nanoparticles using or comprising, inter alia, a multi-inlet vortexing reactor, tangential flow filtration (TFF) and/or a high shear fluid processor such as a microfluidizer (or a microfluidizer processor). The present invention also relates to the nanoparticles, cellular or viral membranes and/or cellular or viral membrane coated nanoparticles prepared by the present processes and systems, and the uses and/or applications of the nanoparticles, cellular or viral membranes and/or cellular or viral membrane coated nanoparticles.Type: GrantFiled: November 18, 2016Date of Patent: June 14, 2022Assignee: ARYTHA BIOSCIENCES, LLCInventors: Weiwei Gao, Che-Ming Jack Hu
-
Publication number: 20210299217Abstract: A nanoparticle comprising an outer surface comprising a plasma membrane derived from a cell that can be infected with a respiratory virus, including a human lung epithelial cell expressing ACE-2 receptor. Methods of manufacture and use for preventing or treating viral infections, such as coronavirus infection in a subject in need are disclosed.Type: ApplicationFiled: March 22, 2021Publication date: September 30, 2021Inventors: Liangfang Zhang, Weiwei Gao, Ronnie H. Fang
-
Patent number: 11007147Abstract: The present invention provides for compositions comprising a polymeric hydrogel impregnated with a toxin-absorbing or binding nanoparticle. The present invention also provides for the use of the above compositions for decreasing or neutralizing the effect of a toxin, or for treating or preventing an infection by a microbe that produces a toxin, in a subject. The exemplary toxin is a biological toxin such as a viral, bacterial, fungal, plant or animal toxin.Type: GrantFiled: March 6, 2020Date of Patent: May 18, 2021Assignee: The Regents of the University of CaliforniaInventors: Liangfang Zhang, Che-Ming Jack Hu, Weiwei Gao, Jonathan Copp
-
Patent number: 11000593Abstract: The present invention relates to viral or cellular membrane coated nanostructures. Nanostructure networks, nanoscaffolds and articles of manufacture comprising the nanostructure, and uses thereof, are also provided. The present invention also relates to methods for anchoring, attaching and/or growing a target cell. Target cells, constituent(s) of the target cells, target substances made by the target cells or culture medium of the target cells prepared by the present methods, and uses thereof, are also provided.Type: GrantFiled: January 5, 2017Date of Patent: May 11, 2021Assignee: The Regents of the University of CaliforniaInventors: Liangfang Zhang, Weiwei Gao
-
Publication number: 20200276122Abstract: The present invention provides for compositions comprising a polymeric hydrogel impregnated with a toxin-absorbing or binding nanoparticle. The present invention also provides for the use of the above compositions for decreasing or neutralizing the effect of a toxin, or for treating or preventing an infection by a microbe that produces a toxin, in a subject. The exemplary toxin is a biological toxin such as a viral, bacterial, fungal, plant or animal toxin.Type: ApplicationFiled: March 6, 2020Publication date: September 3, 2020Inventors: Liangfang Zhang, Che-Ming Jack Hu, Weiwei Gao, Jonathan Copp
-
Publication number: 20200268892Abstract: The present invention relates to viral or cellular membrane coated nanostructures. Nanostructure networks, nanoscaffolds and articles of manufacture comprising the nanostructure, and uses thereof, are also provided. The present invention also relates to methods for anchoring, attaching and/or growing a target cell. Target cells, constituent(s) of the target cells, target substances made by the target cells or culture medium of the target cells prepared by the present methods, and uses thereof, are also provided.Type: ApplicationFiled: January 5, 2017Publication date: August 27, 2020Inventors: Liangfang Zhang, Weiwei Gao
-
Publication number: 20200208303Abstract: Provided is a method of manufacturing fiber with aligned porous structure, an apparatus, and applications of the fiber. The apparatus comprises: a fiber extrusion unit, a freezing unit, and a collection unit for collecting the frozen fibers, wherein fibers extruded from the fiber extrusion unit pass through the freezing unit. Continuous and large scale preparation of such fiber with aligned porous structure is achieved by combining directional freezing and solution spinning.Type: ApplicationFiled: March 13, 2020Publication date: July 2, 2020Applicant: ZHEJIANG UNIVERSITYInventors: Hao BAI, Ying CUI, Yujie WANG, Weiwei GAO
-
Publication number: 20200131405Abstract: The invention utilizes swelling and fusion effects of graphene oxide in a solvent to implement cross-linked bonding of a graphene material itself and materials such as polymers, metal, paper, glass, carbon materials, and ceramics. The present invention not only overcomes the shortcoming in traditional adhesives of residual formaldehyde, but also has short drying time, high bonding strength and high corrosion resistance. The present invention is widely applied in the fields of aviation, aerospace, automobiles, machinery, construction, chemical, light industry, electronics, electrical appliances, and daily life, etc.Type: ApplicationFiled: March 13, 2018Publication date: April 30, 2020Inventors: CHAO GAO, ZHENG LI, CHUNXIAO ZHANG, DAN CHANG, CHEN CHEN, WEIWEI GAO, YAN GUO, YI HAN