Patents by Inventor Dapeng Xu
Dapeng Xu 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: 11976558Abstract: The present invention relates to a mechanical tunneling apparatus and process for a tunnel in a quicksand stratum. The mechanical tunneling apparatus comprises isolating apparatuses arranged at an upper end and a lower end of a supporting apparatus; an excavation apparatus arranged at a front end of the supporting apparatus; a spraying apparatus arranged on the isolating apparatuses and the excavation apparatus; a muck discharging apparatus arranged at a lower part of the supporting apparatus; and a propulsion apparatus arranged at a rear end of the supporting apparatus.Type: GrantFiled: September 1, 2023Date of Patent: May 7, 2024Assignee: Shandong UniversityInventors: Ke Wu, Dapeng Liu, Wenbin Xu, Yajun Liu, Zhongyu Dou, Zhenhua Liu
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Patent number: 11961239Abstract: Disclosed are a method and a device for marking an image position of a sub-pixel of a display screen, and a storage medium. The method includes: obtaining an original image of the sub-pixel of the display screen that has been taken, marking all the sub-pixel bright points in the original image of the sub-pixel to obtain a sub-pixel mark map; searching for points to be filled among adjacent points of the bright point of each sub-pixel in the sub-pixel mark map according to the first direction pixel pitch and the second direction pixel pitch in the original image of the sub-pixel, filling the points to be filled to obtain a filling mark map; and obtaining the target sub-pixel mark map based on the sub-pixel mark map and the filling mark map.Type: GrantFiled: October 13, 2021Date of Patent: April 16, 2024Assignee: SEICHI TECHNOLOGIES SHENZHEN LIMITEDInventors: Bin Zhang, Dapeng Xu, Yao Zhang
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Patent number: 11959890Abstract: The present invention relates to an experimental apparatus for researching characteristics of subsea tunnel at bottom of seabed under wave, comprising main control system, wave making test system, rock and soil confining pressure test system and water level regulation test system, wherein a bottom of the rock and soil confining pressure test system is connected with the water level regulation test system; a bottom of the wave making test system is connected with the rock and soil confining pressure test system; and all test systems are electrically connected with the main control system. The experimental apparatus, when being small, may simulate the situation of the subsea tunnel under a nonlinear complex wave, may consider the common action of the seabed and the wave, and may regulate water levels and soil pressures, having perfect functions and effectively exploring the effect of various aspects on the subsea tunnel.Type: GrantFiled: September 1, 2023Date of Patent: April 16, 2024Assignee: Shandong UniversityInventors: Ke Wu, Wenbin Xu, Dapeng Liu, Yajun Liu, Zhenhua Liu, Zhongyu Dou
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Patent number: 11933178Abstract: The present invention relates to method for filling deformable karst cave, and the steps are: penetrating a grouting pipe into an elastic silicone tube, penetrating the grouting pipe and the elastic silicone tube into a deformable bracket, and lowering into a karst cave; sealing the elastic silicone tube, injecting silicate resin materials into the grouting pipe, and injecting steel fiber reinforced grout to implement a “block stone-like” structure; sealing the elastic silicone tube, separating the “block stone-like” structure from the elastic silicone tube to complete a “block stone-like” structure; lowering the elastic silicone tube and the deformable bracket, sealing the elastic silicone tube, lowering the elastic silicone tube and the deformable bracket tore construct the “block stone-like” structure, and completing the filling. The present invention may effectively stabilize the karst cave, ensure safe tunnel construction and stable surrounding rocks, and improve engineering construction speed.Type: GrantFiled: August 25, 2023Date of Patent: March 19, 2024Assignee: Shandong UniversityInventors: Ke Wu, Yajun Liu, Zhongyu Dou, Zhenhua Liu, Dapeng Liu, Wenbin Xu
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Patent number: 11933176Abstract: The present invention belongs to the technical field of ocean traffic engineering, and relates to a fabricated ocean tunnel structure with an escape device and an application method thereof. The present invention includes a fabricated ocean tunnel structure and an escape device. the partition plate separates a middle bin in the tunnel, and the escape device is connected into the middle bin; and the escape device includes a rescue capsule, transverse ladders are evenly arranged in the rescue capsule, and a balancing weight block and a rescue equipment area are arranged at the bottom of the rescue capsule. The ocean tunnel structure can be provided with a rescue device during installation, and the safety of personnel escape can be guaranteed; therefore, the safety of the ocean tunnel structure is improved, cost is relatively low, secondary damage to the ocean tunnel structure is not needed.Type: GrantFiled: August 22, 2023Date of Patent: March 19, 2024Assignee: Shandong UniversityInventors: Ke Wu, Yajun Liu, Zhenhua Liu, Zhongyu Dou, Wenbin Xu, Dapeng Liu
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Patent number: 11925064Abstract: The present disclosure provides a display substrate including: a base substrate, and a thin film transistor, an oxygen supplementing functional layer and an oxygen containing layer formed on the base substrate. The thin film transistor includes: an active layer in direct contact with the oxygen containing layer, and the active layer includes an oxide semiconductor material. The oxygen supplementing functional layer includes a metal oxide material and serves as a first electrode of the display substrate. The oxygen containing layer is between the oxygen supplementing functional layer and the base substrate.Type: GrantFiled: September 7, 2021Date of Patent: March 5, 2024Assignees: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Dapeng Xue, Guangcai Yuan, Xiaochun Xu, Zheng Liu, Liangliang Li, Shuilang Dong, Lizhong Wang, Niangi Yao
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Patent number: 11852235Abstract: A selector assembly includes a housing having a spherical cavity and a detent cavity. A positioning sensor is positioned within a sensor cavity and is in communication with the spherical cavity. A selector operates about a center point of the spherical cavity and includes a spheroid member that slidably engages a guide surface of the housing. The spheroid member includes a magnet in electromagnetic communication with the positioning sensor. A first pivot and a second pivot include respective first and second rotational axes that each extend through the center point. A detent pin is biased toward and slidably engages a detent surface of the detent cavity to define a plurality of selector positions of the selector. Operation of the selector within the spherical cavity and along the detent surface defines the plurality of selector positions that are communicated to a controller via the magnet and the positioning sensor.Type: GrantFiled: July 22, 2022Date of Patent: December 26, 2023Assignee: GHSP, Inc.Inventors: Kirk Ypma, Dapeng Xu, Shavin Zhang, Rorbin Luo
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Publication number: 20230411931Abstract: A semiconductor optical device including a buried heterostructure (BH) has reduced parasitic capacitance and reduced inter-diffusion. The semiconductor optical device is manufactured by a regrowth on both sides of a mesa structure with an Fe-doped current blocking layer and an n-type cladding layer outside of an active region in the mesa structure. The Fe-doped current blocking layer and the n-type cladding layer may be disposed and configured such that Fe/Zn inter-diffusion is reduced or prevented by minimal contact between the Fe-doped current blocking layer and a highly Zn-doped cladding layer and by the n-type cladding layer, as will be described in greater detail below. A low Zn-doped or undoped material may be used for a thin cladding layer above the active region in the mesa structure to further suppress Zn/Fe inter-diffusion.Type: ApplicationFiled: June 16, 2022Publication date: December 21, 2023Inventors: Dapeng XU, Dion MCINTOSH-DORSEY, Huanlin ZHANG
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Patent number: 11781644Abstract: A selector assembly includes a housing having a spherical cavity and a detent cavity that form a continuous selector cavity. A selector slidably operates within the selector cavity and about a center point of the spherical cavity. The selector includes a spheroid member that is contained within the spherical cavity and slidably engages a guide surface that defines the spherical cavity. A first pivot includes a first rotational axis that extends through the center point of the spherical cavity. A second pivot includes a second rotational axis that extends through the center point of the spherical cavity. A detent pin is biased toward a detent surface of the detent cavity and slidably engages the detent surface to define a plurality of selector positions of the selector.Type: GrantFiled: July 22, 2022Date of Patent: October 10, 2023Assignee: GHSP, Inc.Inventors: Kirk Ypma, Dapeng Xu, Shavin Zhang, Rorbin Luo
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Publication number: 20230112885Abstract: An aspect of the present disclosure includes a direct modulated laser (DML) with a dielectric current confinement ridge waveguide (RWG) structure. The DML comprises a substrate, one or more layers of material disposed on the substrate to provide a multi quantum well (MQW), first and second insulation/dielectric structures disposed on opposite sides of the MQW, and one or more layers of material disposed on the MQW to provide a mesa structure for receiving a driving current. The mesa structure is preferably disposed between the first and second insulation structures to provide a dielectric current confinement (RWG) structure. The mesa structure further preferably includes an overall width that is greater than the overall width than the active region of the DML that provides the MQW.Type: ApplicationFiled: October 13, 2021Publication date: April 13, 2023Inventors: Dapeng XU, Huanlin ZHANG
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Publication number: 20230053516Abstract: The present disclosure is generally directed to an EML with a filter layer disposed between an active region of the EML and a substrate of the EML to absorb a portion of unmodulated light energy, and preferably the unmodulated light energy caused by transverse electric (TE) substrate mode. The filter layer preferably comprises a material with an energy band gap (Eg) that is less than the energy band gap of the predetermined channel wavelength to absorb unmodulated laser light.Type: ApplicationFiled: August 18, 2021Publication date: February 23, 2023Inventors: Dapeng XU, Jin HUANG, Huanlin ZHANG
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Publication number: 20230023298Abstract: A selector assembly includes a housing having a spherical cavity and a detent cavity that form a continuous selector cavity. A selector slidably operates within the selector cavity and about a center point of the spherical cavity. The selector includes a spheroid member that is contained within the spherical cavity and slidably engages a guide surface that defines the spherical cavity. A first pivot includes a first rotational axis that extends through the center point of the spherical cavity. A second pivot includes a second rotational axis that extends through the center point of the spherical cavity. A detent pin is biased toward a detent surface of the detent cavity and slidably engages the detent surface to define a plurality of selector positions of the selector.Type: ApplicationFiled: July 22, 2022Publication date: January 26, 2023Inventors: Kirk Ypma, Dapeng Xu, Shavin Zhang, Rorbin Luo
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Publication number: 20230027900Abstract: A selector assembly includes a housing having a spherical cavity and a detent cavity. A positioning sensor is positioned within a sensor cavity and is in communication with the spherical cavity. A selector operates about a center point of the spherical cavity and includes a spheroid member that slidably engages a guide surface of the housing. The spheroid member includes a magnet in electromagnetic communication with the positioning sensor. A first pivot and a second pivot include respective first and second rotational axes that each extend through the center point. A detent pin is biased toward and slidably engages a detent surface of the detent cavity to define a plurality of selector positions of the selector. Operation of the selector within the spherical cavity and along the detent surface defines the plurality of selector positions that are communicated to a controller via the magnet and the positioning sensor.Type: ApplicationFiled: July 22, 2022Publication date: January 26, 2023Inventors: Kirk Ypma, Dapeng Xu, Shavin Zhang, Rorbin Luo
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Publication number: 20220198675Abstract: Disclosed are a method and a device for marking an image position of a sub-pixel of a display screen, and a storage medium. The method includes: obtaining an original image of the sub-pixel of the display screen that has been taken, marking all the sub-pixel bright points in the original image of the sub-pixel to obtain a sub-pixel mark map; searching for points to be filled among adjacent points of the bright point of each sub-pixel in the sub-pixel mark map according to the first direction pixel pitch and the second direction pixel pitch in the original image of the sub-pixel, filling the points to be filled to obtain a filling mark map; and obtaining the target sub-pixel mark map based on the sub-pixel mark map and the filling mark map.Type: ApplicationFiled: October 13, 2021Publication date: June 23, 2022Applicant: SEICHI TECHNOLOGIES SHENZHEN LIMITEDInventors: Yao ZHANG, Bin ZHANG, Dapeng XU
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Patent number: 10934221Abstract: The present invention provides a special fertilizer for cut side slope soil remediation in high altitude areas, which is prepared by effectively compounding raw material components of a yak manure-containing compost, an organic micro multi-element fertilizer, a chemical fertilizer, attapulgite powder and sodium alginate under certain conditions. The special fertilizer has obvious effects on the aspects of improving the physicochemical properties of artificial soil at cut side slope wounds in the high altitude areas, increasing the fertilizer efficiency and promoting vegetation restoration.Type: GrantFiled: June 18, 2019Date of Patent: March 2, 2021Inventors: Yingwei Al, Dongqing Fu, Xiaoyan Al, Dapeng Xu, Shenghao Al
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Publication number: 20200123073Abstract: The present invention provides a special fertilizer for cut side slope soil remediation in high altitude areas, which is prepared by effectively compounding raw material components of a yak manure-containing compost, an organic micro multi-element fertilizer, a chemical fertilizer, attapulgite powder and sodium alginate under certain conditions. The special fertilizer has obvious effects on the aspects of improving the physicochemical properties of artificial soil at cut side slope wounds in the high altitude areas, increasing the fertilizer efficiency and promoting vegetation restoration.Type: ApplicationFiled: June 18, 2019Publication date: April 23, 2020Inventors: Yingwei AI, Dongqing FU, Xiaoyan AI, Dapeng XU, Shenghao AI
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Publication number: 20070248131Abstract: An intersubband quantum cascade laser structure includes multiple coupled laser stages, wherein each stage has a multilayer structure including an electron injector, an active region with at least one quantum well, and an electron reflector. Electrons injected from the injector into the active region at a high energy level relax to a lower energy level with the emission of a photon at, for example, mid-infrared wavelengths. The reflector reflects electrons at the higher energy level at which they were injected and transmits electrons from the lower energy level after emission of a photon. Multiple layers of semiconductor are formed on each side of the multistage structure to provide conduction across the device and to provide optical confinement of the photons emitted.Type: ApplicationFiled: March 10, 2006Publication date: October 25, 2007Inventors: Dan Botez, Dapeng Xu, Luke Mawst
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Publication number: 20050226296Abstract: A semiconductor laser and light emitting device is defined. The device comprises an electron injector and an active region adjacent to the electron injector. The active region includes at least one deep quantum well with barrier layers adjacent to either side of the quantum well or wells such that electrons injected from the electron injector into a high energy level of the quantum well relax to a lower energy level with the emission of a photon and are transmitted out to a region beyond the last barrier layer of the active region. The electron injector includes quantum well layers. The bottom of each deep quantum well or wells in the active region is lower in energy than the bottoms of the quantum well layers in the electron injector. The device may further comprise at least two stages wherein each stage contains an electron injector and an active region.Type: ApplicationFiled: December 21, 2004Publication date: October 13, 2005Inventors: Dan Botez, Ali Mirabedini, Dapeng Xu, Luke Mawst