Patents by Inventor Changfeng Zhang
Changfeng 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: 20240192559Abstract: A display panel and a display apparatus. The display panel includes: an array substrate, including: scanning lines, data lines and sub-pixels, where at least two sub-pixels adjacent in a first direction and a second direction constitute a pixel island; an opposing substrate; a liquid crystal layer; and supporting parts, including a plurality of first supporting parts and a plurality of second supporting parts. Each supporting part includes: a first sub-supporting part and a second sub-supporting part; orthographic projections of the first sub-supporting parts divide orthographic projections of the second sub-supporting parts into first parts and second parts; and in each supporting part, a length of the first part is not equal to a length of the second part.Type: ApplicationFiled: August 27, 2021Publication date: June 13, 2024Inventors: Hui ZHANG, Liwei LIU, Kai HOU, Changfeng LI, Hongrun WANG, Shunhang ZHANG, Yunsik IM, Fuqiang LI
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Publication number: 20240169948Abstract: Disclosed are a display panel, a display apparatus, a driving method thereof. The display panel includes: a first base substrate; scanning lines; data lines; sub-pixels, in regions divided by the scanning lines and the data lines, at least two sub-pixels adjacent in a first direction and a second direction constitute a pixel island, the sub-pixels constitute pixel islands, each pixel island includes n sub-pixel rows in the second direction; scanning signal input lines, in one-to-one correspondence to the scanning lines; control signal lines; fixed potential lines; and control circuits, located between the adjacent sub-pixels. One pixel island is connected to at least n control circuits, one control circuit corresponds to one row of sub-pixels in the pixel island. The control circuits are configured to: transfer, under control of control signal lines, signals provided by the scanning signal input lines or the fixed potential lines to the scanning lines.Type: ApplicationFiled: August 27, 2021Publication date: May 23, 2024Inventors: Hui ZHANG, Kai HOU, Hongrun WANG, Shunhang ZHANG, Liwei LIU, Yunsik IM, Changfeng LI, Fuqiang LI
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Publication number: 20240127724Abstract: A display panel, a display device, and a method for driving the display device are disclosed. The display panel includes a base substrate, a plurality of data lines, a plurality of scanning lines, a plurality of sub-pixels, a plurality of data selection control lines, a plurality of data input lines, and a plurality of data selection circuits. The data selection circuits include at least two multiplexers; in each data selection circuit, input terminals of different multiplexers are coupled to different data input lines, control terminals of different multiplexers are coupled to different data selection control lines, and the ith output terminals of different multiplexers are coupled to the same data line; in two adjacent data selection circuits, two multiplexers coupled to different data selection control lines are coupled to the same data input line.Type: ApplicationFiled: July 2, 2021Publication date: April 18, 2024Inventors: Hui ZHANG, Changfeng LI, Kai HOU, Liwei LIU, Hongrun WANG, Yunsik IM, Shunhang ZHANG, Kuanjun PENG
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Publication number: 20240105091Abstract: The present disclosure provides a gate driving circuit, a method of driving a gate driving circuit, and a display panel. The gate driving circuit includes a plurality of driving units connected in cascade. Each driving unit includes: N shift register units; and a mode control circuit connected to the N shift register units, wherein the mode control circuit is configured to receive a control signal for the driving unit, and connect the N shift register units in one of a plurality of resolution modes under the control of the control signal.Type: ApplicationFiled: October 20, 2023Publication date: March 28, 2024Applicant: BOE Technology Group Co., Ltd.Inventors: Weixing Liu, Wei Qin, Kuanjun Peng, Tieshi Wang, Chunfang Zhang, Hui Zhang, Changfeng Li, Shunhang Zhang, Kai Hou, Hongrun Wang, Liwei Liu, Yunsik Im, Wanpeng Teng, Xiaolong Li, Kai Guo, Zhiqiang Xu
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Patent number: 11917320Abstract: Disclosed are a method, device and system for sending a virtual card and a readable storage medium, which are configured to receive at least one audio-video stream data of a plurality of participant terminals in communication connection with a server side; determine target audio-video stream data corresponding to at least one speaker from the at least one audio-video stream data; obtain biological characteristic information for identifying the at least one speaker from the target audio-video stream data, the biological characteristic information includes face characteristic information and/or voiceprint characteristic information; generate a virtual card according to the biological characteristic information; overlay the virtual card to the target audio-video stream data, and synthesize the target audio-video stream data with other audio-video stream data in response to there being a plurality of audio-video stream data into a to-be-sent audio-video stream data; send the to-be-sent audio-video stream data toType: GrantFiled: November 23, 2020Date of Patent: February 27, 2024Assignee: BOE Technology Group Co., Ltd.Inventors: Xiaoqin Guo, Baoyu Shi, Changfeng Zhang, Jingyu Zhang, Lirong Xu
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Patent number: 11916997Abstract: An offloading method, of a satellite-to-ground edge computing task, assisted by a satellite and a high-altitude platform can offload a computing task of a ground user equipment (GUE) to a low earth-orbit satellite (LEO SAT), to meet a computing requirement of the GUE and to reduce latency and energy consumption. The method includes four main steps: 1. The GUE selects an associated high-altitude platform. 2. The GUE uses multi-input and multi-output (MIMO) transmission to offload the computing task to the high-altitude platform. 3. The high-altitude platform may also use the MIMO transmission to offload the computing task of the GUE to the LEO SAT. 4. The high-altitude platform and the LEO SAT cooperate to process the computing task of GUE, and reasonably allocate a computing resource to reduce energy consumption; and in MIMO edge computing, the GUE or the high-altitude platform uses the same time-domain and frequency-domain resource.Type: GrantFiled: April 25, 2021Date of Patent: February 27, 2024Assignee: SOUTHEAST UNIVERSITYInventors: Junbo Wang, Changfeng Ding, Hua Zhang
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Publication number: 20230362320Abstract: Disclosed are a method, device and system for sending a virtual card and a readable storage medium, which are configured to receive at least one audio-video stream data of a plurality of participant terminals in communication connection with a server side; determine target audio-video stream data corresponding to at least one speaker from the at least one audio-video stream data; obtain biological characteristic information for identifying the at least one speaker from the target audio-video stream data, the biological characteristic information includes face characteristic information and/or voiceprint characteristic information; generate a virtual card according to the biological characteristic information; overlay the virtual card to the target audio-video stream data, and synthesize the target audio-video stream data with other audio-video stream data in response to there being a plurality of audio-video stream data into a to-be-sent audio-video stream data; send the to-be-sent audio-video stream data toType: ApplicationFiled: November 23, 2020Publication date: November 9, 2023Inventors: Xiaoqin GUO, Baoyu SHI, Changfeng ZHANG, Jingyu ZHANG, Lirong XU
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Patent number: 10090907Abstract: The present invention is applicable to the field of mobile terminals and provides an antenna switching system and method. The antenna switching system includes a radio-frequency transceiver circuit, a primary antenna, and a parasitic antenna, where the primary antenna is connected to the radio-frequency transceiver circuit, and further includes a switch circuit, configured to connect, when the parasitic antenna is used to receive or send a radio-frequency signal, the parasitic antenna and the radio-frequency transceiver circuit. If the parasitic antenna is grounded, the parasitic antenna may be configured to spread a spectrum. In addition, when carrier aggregation is needed, the parasitic antenna is connected to the radio-frequency transceiver circuit, so as to become an independent receive or transmit antenna.Type: GrantFiled: July 29, 2016Date of Patent: October 2, 2018Assignee: Huawei Device (Dongguan) Co., Ltd.Inventors: Qiuliang Xu, Liping Yang, Changfeng Zhang, Zhijun Chen
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Publication number: 20160337025Abstract: The present invention is applicable to the field of mobile terminals and provides an antenna switching system and method. The antenna switching system includes a radio-frequency transceiver circuit, a primary antenna, and a parasitic antenna, where the primary antenna is connected to the radio-frequency transceiver circuit, and further includes a switch circuit, configured to connect, when the parasitic antenna is used to receive or send a radio-frequency signal, the parasitic antenna and the radio-frequency transceiver circuit. If the parasitic antenna is grounded, the parasitic antenna may be configured to spread a spectrum. In addition, when carrier aggregation is needed, the parasitic antenna is connected to the radio-frequency transceiver circuit, so as to become an independent receive or transmit antenna.Type: ApplicationFiled: July 29, 2016Publication date: November 17, 2016Inventors: Qiuliang Xu, Liping Yang, Changfeng Zhang, Zhijun Chen