Patents by Inventor Xiaowen Hu
Xiaowen Hu 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: 11835831Abstract: An infrared reflection device includes a power supply assembly, a plurality of switches, and two relatively disposed light-transmitting conductive substrates packaging a regulating area. Each of the light-transmitting conductive substrates comprise a light-transmitting substrate and an electrode layer. The regulating area is filled with a liquid crystal mixture; the electrode layers are arranged on opposite surfaces of the two light-transmitting substrates; the electrode layer of at least one of the light-transmitting conductive substrates comprises at least two mutually independent electrode areas; and electrode areas of the same light-transmitting conductive substrate, after being respectively connected in series to the switches, are jointly connected in parallel to the same electrode of the power supply assembly.Type: GrantFiled: November 15, 2017Date of Patent: December 5, 2023Assignees: SOUTH CHINA NORMAL UNIVERSITY, SHENZHEN GUOHUA OPTOELECTRONICS CO., LTD., ACADEMY OF SHENZHEN GUOHUA OPTOELECTRONICSInventors: Guofu Zhou, Xiaowen Hu, Nan Li
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Publication number: 20230332604Abstract: A vacuum cleaner and a fan assembly that includes a shell, a rotation shaft, a first impeller, a diffuser and a second impeller. The shell includes an air inlet and an air outlet in communication with each other. The rotation shaft is arranged in the shell and extends from the air inlet to the air outlet. The first impeller is arranged on the rotation shaft and located at a side of the air inlet. The diffuser is arranged in the shell and located at a side of the air outlet. The second impeller is arranged on the rotation shaft and located between the first impeller and the diffuser. The fan assembly may reduce working noise of the fan assembly while ensuring an air supply capacity of the fan assembly, and may reduce a radial size of the fan assembly, and may improve gas flow efficiency.Type: ApplicationFiled: June 21, 2023Publication date: October 19, 2023Inventors: Jie QIN, Xiaowen HU, Site HU, Zhenjie ZENG, Longxin ZHANG
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Patent number: 11661943Abstract: A counter-rotating fan, comprising two impellers and a motor. The motor is used for driving the two impellers to rotate. The two impellers are axially spaced apart from each other, and are divided into a first-stage impeller and a second-stage impeller. When the counter-rotating fan operates, airflow is blown to the direction of the second-stage impeller by means of the first-stage impeller. At least one impeller has turns of blades arranged in the radial direction of the impeller. Blades of each turn are spaced apart from each other around a hub of the impeller, and a spacer ring is connected between two adjacent turns of blades. The counter-rotating fan is stable in rotation and good in cooling effect, it is not easy to deform, and the wind is strong in the center.Type: GrantFiled: December 21, 2018Date of Patent: May 30, 2023Inventors: Xiaowen Hu, Site Hu, Hui Zhang, Rong Yi
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Publication number: 20230020442Abstract: Disclosed is an ultrasound imaging system that includes a remote server configured for communication with a first ultrasound imaging console and a second ultrasound imaging console. The server is configured to receive, from the first ultrasound imaging console, an upload request for a custom image setting, receive and store the custom image setting. The server is further configured to output, to the second ultrasound imaging console, data representative of the custom image setting; receive a request for the custom image setting; retrieve and send, to the second ultrasound imaging console, the custom image setting such that the second ultrasound imaging console can generate an image with the custom image setting.Type: ApplicationFiled: December 8, 2020Publication date: January 19, 2023Inventors: Xiaowen Hu, Kyong Chang, Shannon Renee Fox, Yanjun Gong
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Publication number: 20220381959Abstract: A multilayer film and a preparation method thereof is provided, and belongs to the technical field of optical films. The provided multilayer film comprises an ultraviolet blocking material and a cholesteric liquid crystal layer. The cholesteric liquid crystal layer comprises a polymerizable liquid crystal monomer, a polymerizable chiral dopant and a photoinitiator. The multilayer film can filter ultraviolet rays and near infrared rays in natural light, thereby reducing the heat effect of the natural light and harms of the ultraviolet rays to people and objects. In addition, the multilayer film has a high visible light transmission rate, which does not distort the color of the natural light passing through.Type: ApplicationFiled: October 30, 2020Publication date: December 1, 2022Inventors: Augustinus Jozef Johannes KRAGT, Xiaowen HU, Guofu ZHOU
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Patent number: 11486282Abstract: A vacuum clear and an electric motor module (100) therefor are provided. The electric motor module (100) includes an outer casing (1) provided with an air inlet (10) at a front side thereof and an air outlet (11) at a rear side thereof; an electric motor assembly (2) arranged in the outer casing (1), and cooperating with the outer casing (1) to define an air passage in communication with the air inlet (10) and the air outlet (11); and a silencer (3) arranged at the air inlet (10), defining at least one resonant cavity therein, and the at least one resonant cavity having a side wall provided with a throat in communication with the resonant cavity.Type: GrantFiled: January 6, 2020Date of Patent: November 1, 2022Assignee: MIDEA GROUP CO., LTD.Inventors: Lele Ming, Hui Zhang, Xiaowen Hu, Shuqi Li, Zhu Yang
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Publication number: 20220178384Abstract: A heating pump includes a driving electric motor; a pump case, wherein a pump cavity and a heating cavity are defined in the pump case, the pump cavity and the heating cavity are roughly arranged side by side in an axial direction and are in communication by means of a communication channel, and a water inlet and a water outlet are formed in the pump case; an impeller arranged in the pump cavity; and a heating member arranged in the heating cavity. Therefore, not only is the size of the heating pump favorably reduced, the impeller may also be prevented from being radiated at a temperature by the heating member, such that the premature aging of the impeller may be prevented, and thus, the usage performance of the heating pump may be improved.Type: ApplicationFiled: February 24, 2022Publication date: June 9, 2022Inventors: Xiaowen HU, Site HU, Longzhen DAI, Fagang TAN, Richao LIU
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Publication number: 20220074428Abstract: A heat collecting pump includes: a flow guide member, including a flow guide body and a flow guide blade, wherein the flow guide blade is disposed on an outer peripheral wall of the flow guide body; a heating member, disposed on a periphery of the flow guide member and spaced apart from the flow guide blade. The flow guide blade enables water to flow along the outer peripheral wall of the flow guide body to form a first whirlwind flow and to further form a second whirlwind flow in a gap between the heating member and the flow guide blade. Projections of velocity directions of the first whirlwind flow and the second whirlwind flow on a reference plane perpendicular to the axial direction of the flow guide body are in opposite directions; and the second whirlwind flow removes bubbles gathered on the heating member.Type: ApplicationFiled: November 11, 2021Publication date: March 10, 2022Inventors: Xiaowen HU, Site HU, Longzhen DAI, Richao LIU, Fagang TAN, Hui ZHANG
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Patent number: 11256008Abstract: Disclosed are a laser protective film and a laser protective device comprising the same. The laser protective film comprises, stackingly disposed: a first liquid crystal polymer layer for reflecting left-hand polarized light, a second liquid crystal polymer layer for reflecting right-hand polarized light, and a third liquid crystal polymer layer for absorbing incident laser. In the above way, the laser protective film of the present disclosure has a large angle of protection, high flexibility. In addition, it is easy to find any damage to the laser protective film of the present disclosure. Moreover, it can make modification to existing equipment. Thus, the present disclosure has a good application prospect in many fields such as laser goggles, window glass and the like.Type: GrantFiled: October 10, 2018Date of Patent: February 22, 2022Assignees: SOUTH CHINA NORMAL UNIVERSITY ELECTRONIC PAPER DISPLAY INSTITUTE, SHENZHEN GUOHUA OPTOELECTRONICS CO., LTD., ACADEMY OF SHENZHEN GUOHUA OPTOELECTRONICSInventors: Guofu Zhou, Xiaowen Hu, Wei Zhao, Qiumei Nie, Weijie Zeng, Haitao Sun
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Patent number: 11209711Abstract: A multi-stable electroresponsive smart window and preparation method thereof are disclosed. The multi-stable electroresponsive smart window comprises a first light transmitting conductive substrate, a parallel orientation layer, a positive polymer stabilized cholesteric texture layer, a positive cholesteric texture layer and a second light transmitting conductive substrate disposed in stack successively. The multi-stable electroresponsive smart window of the present disclosure can realize a diversified light transmission state such as colored and transparent state, colored and blur state, colorless and blur state, and colorless and transparent state by changing the magnitude of the access voltage, thereby satisfying the various demands in people's work and life.Type: GrantFiled: June 15, 2021Date of Patent: December 28, 2021Assignees: South China Normal University, Electronic Paper Display Institute, South China Normal UnivInventors: Guofu Zhou, Xiaowen Hu, Wei Zhao, Haitao Sun
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Publication number: 20210388838Abstract: A counter-rotating fan, comprising two impellers and a motor. The motor is used for driving the two impellers to rotate. The two impellers are axially spaced apart from each other, and are divided into a first-stage impeller and a second-stage impeller. When the counter-rotating fan operates, airflow is blown to the direction of the second-stage impeller by means of the first-stage impeller. At least one impeller has turns of blades arranged in the radial direction of the impeller. Blades of each turn are spaced apart from each other around a hub of the impeller, and a spacer ring is connected between two adjacent turns of blades. The counter-rotating fan is stable in rotation and good in cooling effect, it is not easy to deform, and the wind is strong in the center.Type: ApplicationFiled: December 21, 2018Publication date: December 16, 2021Inventors: Xiaowen HU, Site HU, Hui ZHANG, Rong YI
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Patent number: 11175436Abstract: A dye-doped laser protective film is disclosed, comprising a polymer layer A and a polymer layer B. The polymer molecules in the polymer layer A are arranged in a left-handed helical structure which can reflect a left-handed polarized laser. The polymer molecules in the polymer layer B are arranged in a right-handed helical structure which can reflect a right-handed polarized laser. The combination of the polymer layer having the left-handed helical structure and the polymer layer having the right-handed helical structure can completely reflect circularly polarized light. In addition, the dye can absorb incident laser, so as to expand the protection angle of the laser protective film. The dye-doped laser protective film of the present disclosure has a simple manufacturing process, large protection angle and good flexibility, and can refit existing devices.Type: GrantFiled: October 10, 2018Date of Patent: November 16, 2021Assignees: South China Normal University, Shenzhen Guohua Optoelectronics Co., Ltd., Academy of Shenzhen Guohua OptoelectronicsInventors: Guofu Zhou, Xiaowen Hu, Wei Zhao, Haitao Sun, Qiumei Nie
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Patent number: 11168256Abstract: A liquid crystal mixture and a temperature-responsive infrared reflection device made by using the liquid crystal mixture containing potassium laurate. Infrared light can pass through the device within a non-working temperature range, and a chiral dopant enables potassium laurate to form a cholesteric phase within a working temperature range. The birefringence value of the potassium laurate gradually increases with the increase of temperature between 12.5° C. and 26° C., so that the infrared reflection bandwidth of the device constantly increases. The birefringence value of the potassium laurate gradually decreases with the increase of temperature between 26° C. and 54.5° C., so that the infrared reflection bandwidth of the device constantly decreases. The infrared reflection bandwidth of the infrared reflection device can vary with temperature by adjusting the proportions of the ingredients of the liquid crystal mixture containing potassium laurate.Type: GrantFiled: October 10, 2018Date of Patent: November 9, 2021Assignees: South China Normal University, Shenzhen Guohua Optoelectronics Co., Ltd., Academy of Shenzhen Guohua OptoelectronicsInventors: Guofu Zhou, Xiaowen Hu, Wei Zhao, Weijie Zeng, Chun Ju, Lingling Shui
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Patent number: 11143902Abstract: A total-reflection infrared reflection device and a preparation method thereof. The device includes two light-transmitting conductive substrates disposed oppositely, the two light-transmitting conductive substrates are packaged to form a seal cavity, in the seal cavity, opposite surfaces of the two light-transmitting conductive substrates are respectively coated with a first liquid crystal layer capable of reflecting left-handed polarized light and a second liquid crystal layer capable of reflecting right-handed polarized light, the first liquid crystal layer includes a polymer network and a cholesteric liquid crystal with a left-handed spiral structure, the second liquid crystal layer includes a polymer network and a cholesteric liquid crystal with a right-handed spiral structure, the cholesteric liquid crystal with the left-handed spiral structure can reflect left-handed polarized light, and the cholesteric liquid crystal with the right-handed spiral structure can reflect right-handed polarized light.Type: GrantFiled: November 15, 2017Date of Patent: October 12, 2021Assignees: SOUTH CHINA NORMAL UNIVERSITY, SHENZHEN GUOHUA OPTOELECTRONICS CO., LTD., G.H.S ADVANCED EQUIPMENT TECHNOLOGY CO., LTD.Inventors: Guofu Zhou, Xiaowen Hu, Nan Li
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Publication number: 20210302776Abstract: A multi-stable electroresponsive smart window and preparation method thereof are disclosed. The multi-stable electroresponsive smart window comprises a first light transmitting conductive substrate, a parallel orientation layer, a positive polymer stabilized cholesteric texture layer, a positive cholesteric texture layer and a second light transmitting conductive substrate disposed in stack successively. The multi-stable electroresponsive smart window of the present disclosure can realize a diversified light transmission state such as colored and transparent state, colored and blur state, colorless and blur state, and colorless and transparent state by changing the magnitude of the access voltage, thereby satisfying the various demands in people's work and life.Type: ApplicationFiled: June 15, 2021Publication date: September 30, 2021Inventors: Guofu ZHOU, Xiaowen HU, Wei ZHAO, Haitao SUN
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Patent number: 11116367Abstract: An electric fan and a vacuum cleaner having the same are provided. The electric fan includes: a cover having an open side; an impeller disposed in the cover; a diffuser including a diffuser body and a plurality of vanes, the diffuser body being located at a side of the impeller adjacent to the cover, the plurality of vanes being disposed at an end of the diffuser body adjacent to impeller and spaced apart from one another along an outer circumference of the impeller, an outlet angle of each vane being denoted as ?, and ? satisfying: 45°???90°; and a refluxer disposed at an end of the diffuser body away from the impeller. The electric fan reduces flow losses of airflow, and improves work efficiency.Type: GrantFiled: December 27, 2018Date of Patent: September 14, 2021Assignee: MIDEA GROUP CO., LTD.Inventors: Lele Ming, Xiaowen Hu, Hui Zhang, Xiaoyin Han
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Publication number: 20210219952Abstract: Systems, devices, and methods for ultrasonic imaging by sparse sampling are provided. In one embodiment, an ultrasound imaging system comprises an array of ultrasound transducer elements, electronic circuitry in communication with the array of ultrasound transducer elements and configured to select a first receive aperture of the array comprising a plurality of contiguous ultrasound transducer elements and at least one non-contiguous ultrasound transducer element, and a beamformer in communication with the electronic circuitry. Each ultrasound transducer element of the first receive aperture is configured to receive reflected ultrasound echoes and generate an electrical signal representative of imaging data.Type: ApplicationFiled: May 7, 2019Publication date: July 22, 2021Inventors: Sheng-Wen Huang, Changhong Hu, Douglas Robert Maxwell, David Hope Simpson, James Robertson Jago, Francois Guy Gerard Marie Vignon, Jun Seob Shin, Xiaowen Hu, Unmin Bae
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Patent number: 11067866Abstract: A multi-stable electroresponsive smart window and preparation method thereof are disclosed. The multi-stable electroresponsive smart window comprises a first light transmitting conductive substrate, a parallel orientation layer, a positive polymer stabilized cholesteric texture layer, a positive cholesteric texture layer and a second light transmitting conductive substrate disposed in stack successively. The multi-stable electroresponsive smart window of the present disclosure can realize a diversified light transmission state such as colored and transparent state, colored and blur state, colorless and blur state, and colorless and transparent state by changing the magnitude of the access voltage, thereby satisfying the various demands in people's work and life.Type: GrantFiled: October 10, 2018Date of Patent: July 20, 2021Assignees: South China Normal University, Shenzhen Guohua Optoelectronics Co., Ltd., Academy of Shenzhen Guohoa OptoelectronicsInventors: Guofu Zhou, Xiaowen Hu, Wei Zhao, Haitao Sun
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Publication number: 20210077078Abstract: An ultrasound imaging system transmits two beams in succession in the same beam direction, the waveform of the second beam being a phase inverted form of the first waveform, and each waveform containing first and second major frequency components. Echoes are received from along the beam direction in response to each beam transmission, and are processed by additively and subtractively combining the two echo sequences on a common depth basis. The echo components resulting from this processing extend from high frequencies for good near field resolution to low frequencies for good depth penetration, and include fundamental, harmonic, and sum or difference frequency components. The linear and nonlinear echo signal components may be frequency compounded for speckle reduction.Type: ApplicationFiled: April 15, 2019Publication date: March 18, 2021Inventors: Xiaowen Hu, Gary Cheng-How Ng, David Hope Simpson
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Patent number: 10942402Abstract: An electric response infrared reflection device and a preparation method thereof. The device comprises three light-transmitting conductive substrates which are oppositely arranged. Two adjacent light-transmitting conductive substrates of the three light-transmitting conductive substrates are respectively packaged to form a first adjusting area and a second adjusting area. Both the first adjusting area and the second adjusting area are filled with liquid crystal layers. Each of the liquid crystal layers comprises a mixed liquid crystal material. The mixed liquid crystal material comprises a chiral nematic phase liquid crystal, a monomer, a photoinitiator, and a chiral dopant. The spiral direction of the chiral nematic phase liquid crystal in the first adjusting area is opposite to the spiral direction of the chiral nematic phase liquid crystal in the second adjusting area, so that the total reflection of an infrared band can be implemented.Type: GrantFiled: November 8, 2017Date of Patent: March 9, 2021Assignees: SOUTH CHINA NORMAL UNIVERSITY, SHENZHEN GUOHUA OPTOELECTRONICS CO., LTD., ACADEMY OF SHENZHEN GUOHUA OPTOELECTRONICSInventors: Guofu Zhou, Xiaowen Hu, Nan Li