Patents by Inventor Wen Duan
Wen Duan 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: 20240078441Abstract: A method for knowledge representation and deduction of service logic includes: generating, based on a knowledge representation model, a semantic graph corresponding to conceptual-layer service logic, where the semantic graph includes one or more types of nodes and edges for connecting the one or more types of nodes, and the nodes include at least a node of a variable type; generating, based on the semantic graph and a physical table to which a service object is mapped, an instance graph, where the instance graph includes the nodes and edges in the semantic graph; generating executable code based on a service logic relationship between the nodes in the instance graph; and determining, based on the executable code and a data instance corresponding to a node whose in-degree is 0 in the instance graph, a data instance corresponding to each node in the instance graph.Type: ApplicationFiled: November 9, 2023Publication date: March 7, 2024Inventors: Rong Duan, Kangxing Hu, Wenwen Huang, Yuan Yuan, Wen Peng, Chunxi Liu, Qinjie Yang, Xiaoliang Yin, Shufan Li
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Publication number: 20240070589Abstract: A method of engineering forecast and analysis is provided. The method includes: generating a forecasting model based on financial or business information obtained through a user interface, where the forecasting model expresses a logical determining and/or calculation rule based on a structure of a high-order directed graph and by using a plurality of nodes, attributes of the plurality of nodes, and a relationship between every two of the plurality of nodes, and the forecasting model expresses a forecasting path through a directed edge between the nodes; and configuring a common attribute of the forecasting model, an attribute of the forecasting path, and a personalized attribute of the node based on instantiation configuration information.Type: ApplicationFiled: November 9, 2023Publication date: February 29, 2024Inventors: Rong Duan, Yuan Yuan, Kangxing Hu, Chunxi Liu, Wenwen Huang, Wen Peng
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Publication number: 20230282974Abstract: An antenna includes a radiating element, a reflective baseplate, a metal enclosure frame, a first reflective surface, and a radiation cavity. The radiating element is on the reflective baseplate and is below the first reflective surface. The reflective baseplate is rectangular. A length of the reflective baseplate is greater than a width of the reflective baseplate. The metal enclosure frame is connected to and encircles the reflective baseplate. The metal enclosure frame includes four enclosure frame surfaces. The four enclosure frame surfaces include two first enclosure frame surfaces, and two second enclosure frame surfaces. The first enclosure frame surfaces are electrically connected to first sides of the reflective baseplate. The second enclosure frame surfaces are electrically connected to second sides of the reflective baseplate. The first sides are greater than the second sides. The first reflective surface includes a secondary reflective surface or a partially reflective surface.Type: ApplicationFiled: May 10, 2023Publication date: September 7, 2023Inventors: Wen DUAN, Weihong XIAO, Xue BAI, Dingjiu DAOJIAN
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Patent number: 11296425Abstract: A dual-polarized duplex antenna includes a top-layer dielectric substrate; a metal reflective ground plate below the top-layer dielectric substrate; vertically-placed duplex baluns for duplexing operation between the top-layer dielectric substrate and the metal reflective ground plate; and four dipole arms horizontally printed on an upper surface of the top-layer dielectric substrate. Each of the duplex balun includes a vertical dielectric substrate, a balun feedline printed on a front side of the vertical dielectric substrate, and a ground plane with a printed slot line printed on a reverse side of the vertical dielectric substrate. The balun feedline includes a low-pass filter, a high-pass filter and a microstrip feeding structure serving as a connection. The low-pass filter and the high-pass filter are located on two sides of the slot line, and are connected together by the microstrip feeding structure.Type: GrantFiled: October 18, 2018Date of Patent: April 5, 2022Inventors: Xiuyin Zhang, Yufeng Wu, Yunfei Cao, Wen Duan, Yao Zhang
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Publication number: 20210336351Abstract: A dual-polarized duplex antenna includes a top-layer dielectric substrate; a metal reflective ground plate below the top-layer dielectric substrate; vertically-placed duplex baluns for duplexing operation between the top-layer dielectric substrate and the metal reflective ground plate; and four dipole arms horizontally printed on an upper surface of the top-layer dielectric substrate. Each of the duplex balun includes a vertical dielectric substrate, a balun feedline printed on a front side of the vertical dielectric substrate, and a ground plane with a printed slot line printed on a reverse side of the vertical dielectric substrate. The balun feedline includes a low-pass filter, a high-pass filter and a microstrip feeding structure serving as a connection. The low-pass filter and the high-pass filter are located on two sides of the slot line, and are connected together by the microstrip feeding structure.Type: ApplicationFiled: October 18, 2018Publication date: October 28, 2021Inventors: Xiuyin Zhang, Yufeng Wu, Yunfei Cao, Wen Duan, Yao Zhang
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Patent number: 10347990Abstract: A low-profile dual-band filtering patch antenna and its application to LTE MIMO system are disclosed. By using two embedded U-shaped radiating patches and a multi-stub microstrip feed-line, two operating bands and four radiation nulls can been generated and individually controlled, the design is thus very simple and flexible. Based on the proposed low-profile dual-band filtering patch antenna, a MIMO antenna with a very low profile, low mutual coupling and low ECCs has been presented.Type: GrantFiled: May 23, 2017Date of Patent: July 9, 2019Assignee: South China University of TechnologyInventors: Xiu Yin Zhang, Yao Zhang, Yong-Mei Pan, Wen Duan
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Publication number: 20180151955Abstract: A low-profile dual-band filtering patch antenna and its application to LTE MIMO system are disclosed. By using two embedded U-shaped radiating patches and a multi-stub microstrip feed-line, two operating bands and four radiation nulls can been generated and individually controlled, the design is thus very simple and flexible. Based on the proposed low-profile dual-band filtering patch antenna, a MIMO antenna with a very low profile, low mutual coupling and low ECCs has been presented.Type: ApplicationFiled: May 23, 2017Publication date: May 31, 2018Inventors: Xiu Yin Zhang, Yao Zhang, Yong-Mei Pan, Wen Duan
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Patent number: 9941596Abstract: A dual-polarized filtering antenna comprising a driven patch, a parasitic stacked patch and a feeding network is disclosed. Two orthogonal H-shaped feeding lines are coupled to the driven patch for realizing dual polarization. The H-shaped feeding line provides a sharp roll-off rate at the lower band-edge, whereas the stacked patch offers a radiation null at the upper stopband. As a result, a quasi-elliptic bandpass response can be achieved for both polarizations.Type: GrantFiled: June 3, 2016Date of Patent: April 10, 2018Assignee: South China University of TechnologyInventors: Xiu Yin Zhang, Wen Duan, Yong-Mei Pan
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Publication number: 20170294717Abstract: A dual-polarized filtering antenna comprising a driven patch, a parasitic stacked patch and a feeding network is disclosed. Two orthogonal H-shaped feeding lines are coupled to the driven patch for realizing dual polarization. The H-shaped feeding line provides a sharp roll-off rate at the lower band-edge, whereas the stacked patch offers a radiation null at the upper stopband. As a result, a quasi-elliptic bandpass response can be achieved for both polarizations.Type: ApplicationFiled: June 3, 2016Publication date: October 12, 2017Inventors: Xiu Yin Zhang, Wen Duan, Yong-Mei Pan
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Publication number: 20160124472Abstract: A fixing device comprises a bracket. The bracket comprises a positioning block. The positioning block comprises a positioning post. The bracket defines an opening and a receiving space. The opening communicates with the receiving space. A storage device extends into the receiving space from the opening. The positioning block is configured to resiliently move back. The positioning post is configured to be received in a fixing hole of the storage device to engage with storage device.Type: ApplicationFiled: November 25, 2014Publication date: May 5, 2016Inventors: ZHEN-HUA LIU, XIAO-WEN DUAN, DA-LONG SUN
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Patent number: 9274570Abstract: A positioning apparatus includes a computer chassis and a positioning device. The computer chassis secures a plurality of expansion cards and includes a cover. The cover comprises a first flange and a second flange opposite to the first flange. The positioning device includes a securing member and a positioning member secured to the securing member. The securing member is secured to the first flange and a second flange. The positioning member is pressed on the plurality of expansion cards to prevent the plurality of expansion cards from moving.Type: GrantFiled: May 1, 2014Date of Patent: March 1, 2016Assignee: ScienBiziP Consulting(Shenzhen)Co.,Ltd.Inventors: Sheng-He Li, Chang-Ke Ke, Xiao-Wen Duan, Da-Long Sun
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Publication number: 20150048727Abstract: A single mounting apparatus for securing a number of expansion cards includes a resisting member rotatably attached to the chassis and a clamping buckle. The clamping buckle includes a pressing piece, a supporting portion, an operating portion, and a catching member. A securing space is defined in the resisting member for latching the catching member. When the catching member is caught in the securing space, the securing member is clamped between a flange of the chassis and the resisting member to stop the rotation of the resisting member. The pressing piece presses down on and secures the expansion cards. Lifting the clamping buckle upwards unlatches the catching member from the securing space and causes re-rotation of the resisting member to allow dismounting of the expansion cards.Type: ApplicationFiled: August 15, 2014Publication date: February 19, 2015Inventors: ZHEN-HUA LIU, XIAO-WEN DUAN, DA-LONG SUN
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Publication number: 20150036281Abstract: A positioning apparatus includes a computer chassis and a positioning device. The computer chassis secures a plurality of expansion cards and includes a cover. The cover comprises a first flange and a second flange opposite to the first flange. The positioning device includes a securing member and a positioning member secured to the securing member. The securing member is secured to the first flange and a second flange. The positioning member is pressed on the plurality of expansion cards to prevent the plurality of expansion cards from moving.Type: ApplicationFiled: May 1, 2014Publication date: February 5, 2015Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (WUHAN) CO., LTD.Inventors: SHENG-HE LI, CHANG-KE KE, XIAO-WEN DUAN, DA-LONG SUN
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Patent number: 8749551Abstract: A method for constructing a triangular mesh surface of a point cloud includes constructing triangles according to point cloud data, determining seed triangles from the constructed triangles. The method further includes selecting triangles that share a side with a determined seed triangle from the constructed triangle, determining a specific triangle having the biggest dihedral angle with the determined seed triangle and the biggest angle opposing the shared side of the determined seed triangle. The method also includes repairing holes formed by the specific triangles if the all specific triangles have been determined, adjusting a normal vector of each specific triangle, and outputting a triangular mesh surface constructed by the adjusted triangle.Type: GrantFiled: September 14, 2010Date of Patent: June 10, 2014Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Chih-Kuang Chang, Xin-Yuan Wu, Min Wang, Wen-Duan Hu
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Publication number: 20130140969Abstract: An exemplary computer case includes a side plate, a rear cover and a knob. The side plate defines a recess. The rear cover defines a flange for abutting against the side plate when the side plate is attached to the computer case. The knob is partially and rotatably received in the recess. The knob includes a protruding member capable of being driven to rotate to a position where the protruding member and the side plate cooperatively sandwich the flange therebetween so that the side plate is attached to the computer case.Type: ApplicationFiled: June 29, 2012Publication date: June 6, 2013Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (WUHAN) CO., LTD.Inventors: YUN-LUNG CHEN, CHUNG CHAI, XIAO-WEN DUAN, YI SHU
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Patent number: 8274785Abstract: An electronic apparatus includes a first drive bracket and a second drive bracket. The first drive bracket includes a bottom plate. The bottom plate defines a receiving groove and an arc-shaped sliding groove. The second drive bracket includes a top wall. The top wall includes a knob and at least one sliding member formed thereon. The knob is received in the receiving groove to work as an axis. The at least one sliding member is received in the sliding groove, and capable of sliding in the sliding groove to a mounted position. In the mounted position, the top wall of the second drive bracket is aligned with the bottom plate of the first drive bracket.Type: GrantFiled: July 22, 2010Date of Patent: September 25, 2012Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Yun-Lung Chen, Gang Su, Xiao-Wen Duan
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Publication number: 20110261512Abstract: An electronic apparatus includes a first drive bracket and a second drive bracket. The first drive bracket includes a bottom plate. The bottom plate defines a receiving groove and an arc-shaped sliding groove. The second drive bracket includes a top wall. The top wall includes a knob and at least one sliding member formed thereon. The knob is received in the receiving groove to work as an axis. The at least one sliding member is received in the sliding groove, and capable of sliding in the sliding groove to a mounted position. In the mounted position, the top wall of the second drive bracket is aligned with the bottom plate of the first drive bracket.Type: ApplicationFiled: July 22, 2010Publication date: October 27, 2011Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.Inventors: YUN-LUNG CHEN, GANG SU, XIAO-WEN DUAN
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Publication number: 20110157176Abstract: A method for constructing a triangular mesh surface of a point cloud includes constructing triangles according to point cloud data, determining seed triangles from the constructed triangles. The method further includes selecting triangles that share a side with a determined seed triangle from the constructed triangle, determining a specific triangle having the biggest dihedral angle with the determined seed triangle and the biggest angle opposing the shared side of the determined seed triangle. The method also includes repairing holes formed by the specific triangles if the all specific triangles have been determined, adjusting a normal vector of each specific triangle, and outputting a triangular mesh surface constructed by the adjusted triangle.Type: ApplicationFiled: September 14, 2010Publication date: June 30, 2011Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.Inventors: CHIH-KUANG CHANG, XIN-YUAN WU, MIN WANG, WEN-DUAN HU
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Patent number: D579453Type: GrantFiled: December 29, 2007Date of Patent: October 28, 2008Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Yun-Lung Chen, Jen-Chien Chiang, Wan-Cheng Lin, Hong-Jin Wu, Xiao-Wen Duan
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Patent number: D642181Type: GrantFiled: August 26, 2010Date of Patent: July 26, 2011Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Yun-Lung Chen, Hong-Jin Wu, Xiao-Wen Duan, Zhao-Bin Yang