Patents by Inventor Changjun Zhang
Changjun Zhang 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: 20260219873Abstract: An optical module includes a central processing unit and at least one functional unit supporting upgrade. The central processing unit receives an upgrade file, where the upgrade file includes at least one executable file and version information of the upgrade file, and the version information of the upgrade file is determined based on version information of the at least one executable file in the upgrade file. The central processing unit parses the upgrade file and determines a to-be-upgraded target unit in the optical module. When the target unit includes the central processing unit, the central processing unit runs an executable file that is in the at least one executable file and that corresponds to the central processing unit.Type: ApplicationFiled: March 27, 2026Publication date: July 30, 2026Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Kangli Liu, Changjun Zhang, Xiang Cheng, Changzheng Su
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Publication number: 20250219409Abstract: The present invention provides an energy storage synchronous coordinated management method and system based on virtual synchronization technology. The method comprises: selecting an appropriate energy storage device according to the requirements of a power grid and collecting related parameters; building a dynamic model of a virtual rotor, and setting rotational inertia of the rotor and torque parameters; building an adaptation layer; configuring a line monitoring apparatus, carrying out a safety operation when the fault occurs in the adaptation layer, or carrying out dynamic control and predictive planning in the absence of faults. The present invention utilizes intelligence to reduce reliance on experience, and enables dynamic optimization to improve the automation level of energy storage control.Type: ApplicationFiled: January 8, 2025Publication date: July 3, 2025Inventors: Zhongzhong LI, Lihong MA, Sifan LI, Changjun ZHANG, Hang ZHOU, Jianzhao CUI, Donghai LI, Dan QIN
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Publication number: 20250207554Abstract: A virtual synchronization method for an energy storage system and a radial water turbine generator set, relating to the technical field of electrical control strategy design. The method comprises: analyzing the characteristics of the set and designing an energy storage system; obtaining parameters, designing a virtual rotor model, and building a mechanical dynamics equation; designing a virtual synchronization controller and building a closed-loop control system; building a coupled simulation model and optimizing parameters; and implementing a control strategy on a testing platform to carry out and verify. The robustness and adaptability of the control system is greatly enhanced, and the modeling theory is enriched.Type: ApplicationFiled: January 7, 2025Publication date: June 26, 2025Inventors: Lihong MA, Zhongzhong LI, Haisheng WANG, Dan QIN, Hang ZHOU, Changjun ZHANG, Donghai LI, Linbei FU
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Patent number: 11611041Abstract: The present disclosure provides an organic thin film and a method for preparing the same, a display device, and an optical device, in which the method includes: providing a base substrate; forming an isomerization generating layer on the base substrate, the isomerization generating layer including a first region and a second region; adding a precursor solution on a surface of the isomerization generating layer away from the base substrate, and allowing surface energy of the second region to be greater than surface energy of the first region, so as to form the organic thin film from the precursor solution, the precursor solution being at least partially located in the second region.Type: GrantFiled: December 26, 2019Date of Patent: March 21, 2023Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xun Gu, Wenjuan Mei, Dan Liu, Baochao Li, Changjun Zhang
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Patent number: 11126036Abstract: The present disclosure provides a backlight module assembly, structural adjustment method thereof and display device. The backlight module assembly includes a plastic frame, a film and an adjustment sheet. The plastic frame is presented in a box shape with an opening on the top, and has side walls and a bottom wall, and a space enclosed by the side walls and the bottom wall being a mounting groove. The film is arranged on the bottom wall and received within the mounting groove. The adjustment sheet is arranged on an inner side of the side wall of the mounting groove.Type: GrantFiled: March 17, 2020Date of Patent: September 21, 2021Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jiang Zhu, Hongchao He, Jianghui Zhan, Rui Wang, Yuxi Dong, Changjun Zhang, Bo Zhang, Dan Liu, Tongmin Liu
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Publication number: 20210217954Abstract: The present disclosure provides an organic thin film and a method for preparing the same, a display device, and an optical device, in which the method includes: providing a base substrate; forming an isomerization generating layer on the base substrate, the isomerization generating layer including a first region and a second region; adding a precursor solution on a surface of the isomerization generating layer away from the base substrate, and allowing surface energy of the second region to be greater than surface energy of the first region, so as to form the organic thin film from the precursor solution, the precursor solution being at least partially located in the second region.Type: ApplicationFiled: December 26, 2019Publication date: July 15, 2021Applicants: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Xun GU, Wenjuan MEI, Dan LIU, Baochao LI, Changjun ZHANG
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Patent number: 10739415Abstract: The invention provides a printed circuit board and a detection method for detecting a connection between the printed circuit board and a flexible circuit board, and a display panel. The printed circuit board, through a connector provided thereon, is connected to a flexible circuit board, the printed circuit board is provided thereon with at least one first detection structure for matching with at least one second detection structure provided on the flexible circuit board, and whether or not a connection between the printed circuit board and the flexible circuit board is correct is determined by detecting matching between the first detection structures and the second detection structures. Pins of the printed circuit board may be correctly connected to pins of the flexible circuit board, and a case that short circuit occurs and thus the signal lines are damaged and burned can be avoided.Type: GrantFiled: April 15, 2016Date of Patent: August 11, 2020Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Xia Feng, Changjun Zhang, Lingling Liu
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Publication number: 20200218119Abstract: The present disclosure provides a backlight module assembly, structural adjustment method thereof and display device. The backlight module assembly includes a plastic frame, a film and an adjustment sheet. The plastic frame is presented in a box shape with an opening on the top, and has side walls and a bottom wall, and a space enclosed by the side walls and the bottom wall being a mounting groove. The film is arranged on the bottom wall and received within the mounting groove. The adjustment sheet is arranged on an inner side of the side wall of the mounting groove.Type: ApplicationFiled: March 17, 2020Publication date: July 9, 2020Inventors: Jiang ZHU, Hongchao HE, Jianghui ZHAN, Rui WANG, Yuxi DONG, Changjun ZHANG, Bo ZHANG, Dan LIU, Tongmin LIU
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Publication number: 20190393244Abstract: An array substrate and a manufacturing method thereof, a display panel and a driving method thereof, and a display device are provided in the present disclosure, in the field of displays. The array substrate includes a plurality of gate lines, a plurality of data lines, and a plurality of pixel units defined by the gate lines and the data lines in cross arrangement. The plurality of pixel units are arranged in an array. Each of the pixel units includes a thin film transistor. Each row of pixel units are connected to one corresponding gate line. Each row of pixel units comprise a plurality of pixel unit groups. Each pixel unit group comprises two pixel units of adjacent columns that are connected to one data line. Thin film transistors of the two pixel units in the pixel unit group are transistors of different types. When the array substrate reduces the number of the date lines by a half, there is no need to design two gate lines for one row of pixel units.Type: ApplicationFiled: October 24, 2017Publication date: December 26, 2019Inventors: Wenjian Wang, Jun Hong, Changjun Zhang, Liangliang Zheng
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Patent number: 10488930Abstract: The present disclosure relates to the field of display technologies, and provides a display device and a method for providing haptic feedbacks using the same. The display device comprises: a display assembly, wherein the display assembly comprises a display face and a non-display face opposite to the display face; a transducer; and a haptic engine. Specifically, the transducer is arranged on the non-display face of the display assembly, and configured to output a current with corresponding amplitude according to its own deformation. Furthermore, the haptic engine is electrically coupled to the transducer, and configured to generate different degrees of haptic feedbacks based on the amplitude of the current output by the transducer.Type: GrantFiled: November 29, 2017Date of Patent: November 26, 2019Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Changjun Zhang
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Patent number: 10297662Abstract: The present disclosure relates to a dielectrically isolated semiconductor device and a method for manufacturing the same. The dielectrically isolated semiconductor device includes a semiconductor substrate, a first semiconductor layer above the semiconductor substrate, a second semiconductor layer above the first semiconductor layer, a semiconductor island in the second semiconductor layer, and a first dielectric isolation layer surrounding a bottom and sidewalls of the semiconductor island. The first dielectric isolation layer includes a first portion which is formed from a portion of the first semiconductor layer and extending along the bottom of the semiconductor island, and a second portion which is formed from a portion of the second semiconductor layer and extending along the sidewalls of the semiconductor island. The dielectrically isolated semiconductor devices needs no an SOI wafer and reduces manufacturing cost.Type: GrantFiled: December 31, 2015Date of Patent: May 21, 2019Assignees: HANGZHOU SILAN MICROELECTRONICS CO., LTD., HANGZHOU SILAN INTEGRATED CIRCUIT CO., LTD.Inventors: Changjun Zhang, Feng Ji, Ping Wang, Zuyin Chen
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Publication number: 20190033661Abstract: The present disclosure provides a backlight module assembly, structural adjustment method thereof and display device. The backlight module assembly includes a plastic frame, a film and an adjustment sheet. The plastic frame is presented in a box shape with an opening on the top, and has side walls and a bottom wall, and a space enclosed by the side walls and the bottom wall being a mounting groove. The film is arranged on the bottom wall and received within the mounting groove. The adjustment sheet is arranged on an inner side of the side wall of the mounting groove.Type: ApplicationFiled: September 9, 2017Publication date: January 31, 2019Inventors: Jiang ZHU, Hongchao HE, Jianghui ZHAN, Rui WANG, Yuxi DONG, Changjun ZHANG, Bo ZHANG, Dan LIU, Tongmin LIU
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Publication number: 20180267608Abstract: The present disclosure relates to the field of display technologies, and provides a display device and a method for providing haptic feedbacks using the same. The display device comprises: a display assembly, wherein the display assembly comprises a display face and a non-display face opposite to the display face; a transducer; and a haptic engine. Specifically, the transducer is arranged on the non-display face of the display assembly, and configured to output a current with corresponding amplitude according to its own deformation. Furthermore, the haptic engine is electrically coupled to the transducer, and configured to generate different degrees of haptic feedbacks based on the amplitude of the current output by the transducer.Type: ApplicationFiled: November 29, 2017Publication date: September 20, 2018Inventor: Changjun ZHANG
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Publication number: 20180046323Abstract: The present disclosure discloses a method and a system for setting working frequency band of a touch detection system. A method for setting working frequency band of a touch detection system includes the following steps of: collecting noise frequency spectrogram in a touch detection system of a touch apparatus in a normal operation mode; and, determining a frequency band which is within whole frequency band supported by the touch detection system and in which amplitude of the noise is less than a first threshold, according to the noise frequency spectrogram collected; and setting the frequency band in which amplitude of the noise is less than the first threshold to be effective working frequency band of the touch detection system. Meanwhile, the present disclosure also discloses a method and a system for suppressing noise in a touch detection system.Type: ApplicationFiled: October 8, 2016Publication date: February 15, 2018Inventors: Qing Yang, Lei Hua, Changjun Zhang, Jian He, Lingling Liu
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Publication number: 20170179227Abstract: The present disclosure relates to a dielectrically isolated semiconductor device and a method for manufacturing the same. The dielectrically isolated semiconductor device includes a semiconductor substrate, a first semiconductor layer above the semiconductor substrate, a second semiconductor layer above the first semiconductor layer, a semiconductor island in the second semiconductor layer, and a first dielectric isolation layer surrounding a bottom and sidewalls of the semiconductor island. The first dielectric isolation layer includes a first portion which is formed from a portion of the first semiconductor layer and extending along the bottom of the semiconductor island, and a second portion which is formed from a portion of the second semiconductor layer and extending along the sidewalls of the semiconductor island. The dielectrically isolated semiconductor devices needs no an SOI wafer and reduces manufacturing cost.Type: ApplicationFiled: December 31, 2015Publication date: June 22, 2017Inventors: Changjun Zhang, Feng Ji, Ping Wang, Zuyin Chen
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Publication number: 20160341781Abstract: The invention provides a printed circuit board and a detection method for detecting a connection between the printed circuit board and a flexible circuit board, and a display panel. The printed circuit board, through a connector provided thereon, is connected to a flexible circuit board, the printed circuit board is provided thereon with at least one first detection structure for matching with at least one second detection structure provided on the flexible circuit board, and whether or not a connection between the printed circuit board and the flexible circuit board is correct is determined by detecting matching between the first detection structures and the second detection structures. Pins of the printed circuit board may be correctly connected to pins of the flexible circuit board, and a case that short circuit occurs and thus the signal lines are damaged and burned can be avoided.Type: ApplicationFiled: April 15, 2016Publication date: November 24, 2016Inventors: Xia FENG, Changjun ZHANG, Lingling LIU
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Patent number: 9432290Abstract: According to an example, port negotiation between FCFs is implemented through initiation of a negotiation to an opposite party corresponding to a VFC port on a FCF within a VLAN corresponding to each VSAN supported by the VFC port on the FCF. The port negotiation also includes a determination of an intersection of the VSAN and the VLAN supported by the VFC port and the VSAN and the VLAN supported by the opposite party corresponding to the VFC port on the FCF and performance of an ELP negotiation within the intersection of the VSAN and the VLAN.Type: GrantFiled: March 29, 2013Date of Patent: August 30, 2016Assignee: HANGZHOU H3C TECHNOLOGIES CO., LTD.Inventor: Changjun Zhang
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Patent number: 9379811Abstract: Embodiments of the present invention provide a method and device for optimizing performance of an optical module. The optical module includes: an optical receiver, configured to receive an optical signal from an optical network, convert the optical signal into a first electrical signal, and process the first electrical signal according to a set control parameter for performance optimization, so as to obtain a second electrical signal; a connector, configured to send the second electrical signal obtained by the optical receiver to a host connected to the optical module, so that the host obtains bit error information according to the second electrical signal, and configured to receive the bit error information delivered by the host; and a processor, configured to adjust, according to the bit error information of the connector, the control parameter for performance optimization of the optical receiver.Type: GrantFiled: April 17, 2013Date of Patent: June 28, 2016Assignee: Huawei Technologies Co., Ltd.Inventors: Changjun Zhang, Bo Wang, Jianmin Tang, Leiying Pan
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Patent number: 9350621Abstract: Examples of the present disclosure provide a method and an apparatus for synchronization after restart of a FC switch. For example, when a FC switch which is restarted detects that a neighbor FC switch has already established an adjacency relationship with the restarted FC switch, the adjacency relationship between the restarted FC switch and the neighbor FC switch is maintained, and the neighbor FC switch is requested to perform LSR initial synchronization to the restarted FC switch under a circumstance that the adjacency relationship is kept.Type: GrantFiled: May 8, 2013Date of Patent: May 24, 2016Assignee: HANGZHOU H3C TECHNOLOGIES CO., LTD.Inventor: Changjun Zhang
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Patent number: 9276805Abstract: The present disclosure provides a method for backing up a link state advertisement (LSA) for use in a distributed device comprising a main control board and an interface board. The main control board comprises a primary board and a standby board. The method comprises: receiving by the standby board LSA related information sent by the primary board; and generating by the standby board an LSA according to the LSA related information.Type: GrantFiled: January 12, 2012Date of Patent: March 1, 2016Assignee: HANGZHOU H3C TECHNOLOGIES CO., LTD.Inventor: Changjun Zhang