Patents by Inventor Haohao ZHANG
Haohao 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: 20250080092Abstract: The present application provides a level shift circuit, an integrated circuit, and an electronic device. The level shift circuit comprises: an input module, configured to output a first control signal according to a first power supply voltage signal, first and second input voltages, inverted voltages of the first and second input voltages that received; a control voltage generation module, configured to receive the first control signal, and generate a plurality of node voltages according to the first control signal and a second power supply voltage signal; and output control modules, configured to generate first to fourth output signals according to the second power supply voltage signal and the node voltages.Type: ApplicationFiled: November 18, 2024Publication date: March 6, 2025Applicants: BEIJING ESWIN COMPUTING TECHNOLOGY CO., LTD., HEFEI ESWIN COMPUTING TECHNOLOGY CO., LTD.Inventors: Xiaoheng ZHANG, Jiajhang Wu, Haohao ZHANG
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Patent number: 12199614Abstract: The present application provides a level shift circuit, an integrated circuit, and an electronic device. The level shift circuit comprises: an input module, configured to output a first control signal according to a first power supply voltage signal, first and second input voltages, inverted voltages of the first and second input voltages that received; a control voltage generation module, configured to receive the first control signal, and generate a plurality of node voltages according to the first control signal and a second power supply voltage signal; and output control modules, configured to generate first to fourth output signals according to the node voltages and the first power supply voltage signal, or generate fifth to eighth output signals according to the second power supply voltage signal and the node voltages.Type: GrantFiled: December 15, 2022Date of Patent: January 14, 2025Assignees: BEIJING ESWIN COMPUTING TECHNOLOGY CO., LTD., HEFEI ESWIN COMPUTING TECHNOLOGY CO., LTD.Inventors: Xiaoheng Zhang, Jiajhang Wu, Haohao Zhang
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Publication number: 20250008269Abstract: This application provides a speaker and an electronic device. The speaker includes a ring-shaped housing, a magnetic circuit system, a first diaphragm disposed at a first end of the ring-shaped housing, a first component, a first voice coil, a second diaphragm, a second component, and a second voice coil, a first channel, and the first channel is located in at least one of the magnetic circuit system and the ring-shaped housing. The dual-diaphragm speaker in embodiments of this application has a small volume, and can improve low- and medium-frequency sensitivity.Type: ApplicationFiled: July 20, 2022Publication date: January 2, 2025Inventors: Haohao ZHANG, Ling TAO, Mingguang GUO
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Patent number: 11932586Abstract: A liquid explosive for in-situ explosive fracturing in low-permeability oilfields and application thereof are provided. The liquid explosive includes raw materials in parts by mass: a main explosive with positive oxygen balance, a guest regulator and isolation microcapsules; the main explosive with the positive oxygen balance includes raw materials in parts by mass: monomethylamine nitrate, ammonium nitrate, sodium nitrate, water, guar gum, sodium nitrite, a high-temperature resistant regulator with a low detonation velocity and a surfactant; the guest regulator includes raw materials in parts by mass: a reducing agent and a density regulator; the isolation microcapsules include raw materials in parts by mass: porous hollow microbeads, a pore plugging agent and wall materials of pressure-resistant microcapsules; the guest regulator exists in the porous hollow microbeads of the isolation microcapsules.Type: GrantFiled: July 18, 2023Date of Patent: March 19, 2024Assignee: China University of Mining and TechnologyInventors: Ning Luo, Yabo Chai, Hanliang Liang, Haohao Zhang, Cheng Zhai, Jianan Zhou, Penglong Li
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Publication number: 20240025817Abstract: A liquid explosive for in-situ explosive fracturing in low-permeability oilfields and application thereof are provided. The liquid explosive includes raw materials in parts by mass: a main explosive with positive oxygen balance, a guest regulator and isolation microcapsules; the main explosive with the positive oxygen balance includes raw materials in parts by mass: monomethylamine nitrate, ammonium nitrate, sodium nitrate, water, guar gum, sodium nitrite, a high-temperature resistant regulator with a low detonation velocity and a surfactant; the guest regulator includes raw materials in parts by mass: a reducing agent and a density regulator; the isolation microcapsules include raw materials in parts by mass: porous hollow microbeads, a pore plugging agent and wall materials of pressure-resistant microcapsules; the guest regulator exists in the porous hollow microbeads of the isolation microcapsules.Type: ApplicationFiled: July 18, 2023Publication date: January 25, 2024Inventors: Ning LUO, Yabo CHAI, Hanliang LIANG, Haohao ZHANG, Cheng ZHAI, Jianan ZHOU, Penglong LI
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Publication number: 20230216487Abstract: The present application provides a level shift circuit, an integrated circuit, and an electronic device. The level shift circuit comprises: an input module, configured to output a first control signal according to a first power supply voltage signal, first and second input voltages, inverted voltages of the first and second input voltages that received; a control voltage generation module, configured to receive the first control signal, and generate a plurality of node voltages according to the first control signal and a second power supply voltage signal; and output control modules, configured to generate first to fourth output signals according to the node voltages and the first power supply voltage signal, or generate fifth to eighth output signals according to the second power supply voltage signal and the node voltages.Type: ApplicationFiled: December 15, 2022Publication date: July 6, 2023Applicants: Beijing ESWIN Computing Technology Co., Ltd., Hefei ESWIN Computing Technology Co., Ltd.Inventors: Xiaoheng Zhang, Jiajhang Wu, Haohao Zhang
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Publication number: 20230144619Abstract: Provided in the present invention are a salt of an arylaminopurine derivative represented by Formula (2), a preparation method therefor and the use thereof. The salt obtained in the present invention has good crystallinity and significantly improved solubility relative to that in the free form, and the preferred salt and crystal form have low hygroscopicity and can exist stably. Therefore, compared with the free form of arylaminopurine derivatives or other salts, it is easier to prepare same into a medicine.Type: ApplicationFiled: January 22, 2021Publication date: May 11, 2023Applicant: CSPC Zhongqi Pharmaceutical Technology (Shijiazhuang) Co., Ltd.Inventors: Dehua Ji, Shengyong Yang, Xiaofeng Guo, Chen Zhang, Linli Li, Yuxiu Ma, Xiaowei Sun, Qiaoli Cui, Feng Guo, Haohao Zhang
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Patent number: 10834125Abstract: Embodiments of the present disclosure disclose a method for defending against a User Datagram Protocol (UDP) attack and a defense device. The method is implemented by a defense device, the defense device comprising a memory, a processor, and a bus system. The method comprising: detecting, by the defense device, whether a target host is attacked by a UDP attack from an attack device; obtaining, by the defense device, an Internet Control Message Protocol (ICMP) data packet sent back by the target host to the attack device, in response to the target host being attacked by the attack device; extracting, by the defense device, information about target ports in the ICMP data packet; and performing, by the defense device according to the information about the target ports, interception processing on UDP data packets sent by the attack device to the target ports.Type: GrantFiled: March 12, 2019Date of Patent: November 10, 2020Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Haohao Zhang, Shuai Jin
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Patent number: 10785254Abstract: A network attack defense method is provided. An access request transmitted from a client to a target server is intercepted by at least one processor of a bypass check device. The client is redirected to a target verification server, to perform verification of a verification code on the client. A verification result of the verification of the verification code performed on the client by the target verification server is obtained. The access request sent by the client is forwarded to the target server based on the verification result indicating that client verification is successful.Type: GrantFiled: June 29, 2018Date of Patent: September 22, 2020Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventor: Haohao Zhang
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Publication number: 20190215336Abstract: Embodiments of the present disclosure disclose a method for defending against a User Datagram Protocol (UDP) attack and a defense device. The method is implemented by a defense device, the defense device comprising a memory, a processor, and a bus system. The method comprising: detecting, by the defense device, whether a target host is attacked by a UDP attack from an attack device; obtaining, by the defense device, an Internet Control Message Protocol (ICMP) data packet sent back by the target host to the attack device, in response to the target host being attacked by the attack device; extracting, by the defense device, information about target ports in the ICMP data packet; and performing, by the defense device according to the information about the target ports, interception processing on UDP data packets sent by the attack device to the target ports.Type: ApplicationFiled: March 12, 2019Publication date: July 11, 2019Inventors: Haohao ZHANG, Shuai JIN
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Publication number: 20180324209Abstract: A network attack defense method is provided. An access request transmitted from a client to a target server is intercepted by at least one processor of a bypass check device. The client is redirected to a target verification server, to perform verification of a verification code on the client. A verification result of the verification of the verification code performed on the client by the target verification server is obtained. The access request sent by the client is forwarded to the target server based on the verification result indicating that client verification is successful.Type: ApplicationFiled: June 29, 2018Publication date: November 8, 2018Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventor: Haohao ZHANG