Patents by Inventor Cong ZHENG
Cong ZHENG 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: 11960605Abstract: A sample is analyzed to determine a set of events that should be selected for performing by a dynamic analyzer executing the sample in an instrumented, emulated environment. The set of selected events is performed. In some cases, at least one emulator detection resistance action is performed. A maliciousness verdict is determined for the sample based at least in part on one or more responses taken by the sample in response to the set of selected events being performed by the dynamic analyzer.Type: GrantFiled: November 21, 2022Date of Patent: April 16, 2024Assignee: Palo Alto Networks, Inc.Inventors: Cong Zheng, Wenjun Hu, Zhi Xu
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Publication number: 20240120939Abstract: This application discloses a polar encoding method and apparatus and a polar decoding method and apparatus, to apply polar codes to source coding and decoding, to improve source coding and decoding performance.Type: ApplicationFiled: December 7, 2023Publication date: April 11, 2024Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Mengfan ZHENG, Cong LING, Jiaqi GU, Mengyao MA
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Patent number: 11955895Abstract: A flyback converter control architecture is provided in which primary-only feedback techniques are used to ensure smooth startup and detection of fault conditions. During steady-state operation, secondary-side regulation is employed. In addition, current limits are monitored during steady-state operation using primary-only feedback techniques to obviate the need for a secondary-side current sense resistor.Type: GrantFiled: January 18, 2022Date of Patent: April 9, 2024Assignee: DIALOG SEMICONDUCTOR INC.Inventors: Yong Li, Cong Zheng, Xiaoyan Wang, Wenduo Liu
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Patent number: 11946979Abstract: A switching power converter is provided that communicates with a mobile device to receive a value of a load detection current. The switching power converter adjusts the cycling of a power switch until a constant current mode of operation is entered with a known output current driving the mobile device. The switching power converter subtracts the load current from the output current to measure a soft-short circuit current.Type: GrantFiled: June 8, 2021Date of Patent: April 2, 2024Assignee: Dialog Semiconductor Inc.Inventors: Jianming Yao, Kai-wen Chin, Yong Li, Cong Zheng, David Nguyen, Fuqiang Shi
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Patent number: 11940528Abstract: Disclosed are a method and system for evaluating sonar self-noise at a ship design stage. The method includes: building a ship structure full-scale geometric simulation model; acquiring loss factors and sonar transducer space outfitting acoustic absorption coefficient material parameters; acquiring mechanical excitation, hydrodynamic excitation, and propeller excitation; inputting the loss factors and the sonar transducer space outfitting acoustic absorption coefficient material parameters into an established statistical energy evaluation model, and applying a mechanical excitation to a face plate of foundation of the built ship structure full-scale geometric simulation model, applying a hydrodynamic excitation to the surface of a ship hull, and applying a propeller excitation to a stern shaft to perform calculation of sonar self-noise of a ship to obtain total spectral density level of the sonar self-noise; and evaluating spectral density level calculation results by index requirements.Type: GrantFiled: October 24, 2023Date of Patent: March 26, 2024Assignee: HARBIN ENGINEERING UNIVERSITYInventors: Haichao Li, Jiawei Xu, Fuzhen Pang, Cong Gao, Yuhang Tang, Jiajun Zheng, Xueren Wang, Zhe Zhao, Xuhong Miao, Yuan Du
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Publication number: 20240077608Abstract: Disclosed are a method and system for evaluating sonar self-noise at a ship design stage. The method includes: building a ship structure full-scale geometric simulation model; acquiring loss factors and sonar transducer space outfitting acoustic absorption coefficient material parameters; acquiring mechanical excitation, hydrodynamic excitation, and propeller excitation; inputting the loss factors and the sonar transducer space outfitting acoustic absorption coefficient material parameters into an established statistical energy evaluation model, and applying a mechanical excitation to a face plate of foundation of the built ship structure full-scale geometric simulation model, applying a hydrodynamic excitation to the surface of a ship hull, and applying a propeller excitation to a stern shaft to perform calculation of sonar self-noise of a ship to obtain total spectral density level of the sonar self-noise; and evaluating spectral density level calculation results by index requirements.Type: ApplicationFiled: October 24, 2023Publication date: March 7, 2024Inventors: Haichao LI, Jiawei XU, Fuzhen PANG, Cong GAO, Yuhang TANG, Jiajun ZHENG, Xueren WANG, Zhe ZHAO, Xuhong MIAO, Yuan DU
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Patent number: 11880465Abstract: A sample is received for analysis. A determination is made that the sample was compiled for a CPU architecture that is different from a host CPU architecture. The sample is executed in an emulated user space corresponding to the CPU architecture for which the sample was compiled. The emulated user space is provided by executing a user space emulation utility in a virtual machine that shares the host CPU architecture.Type: GrantFiled: June 10, 2022Date of Patent: January 23, 2024Assignee: Palo Alto Networks, Inc.Inventors: Zihang Xiao, Cong Zheng, ChienHua Lu
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Publication number: 20240006669Abstract: A battery circuit board includes a substrate, a first trace configured to receive a voltage and forming a first closed loop around a perimeter of the substrate, and a second trace forming a second closed loop around the perimeter of the substrate. The battery circuit board also includes an electrical assembly configured to determine a presence of an electrolyte on the battery circuit board in response to a short circuit between the first closed loop of the first trace and the second closed loop of the second trace.Type: ApplicationFiled: July 1, 2022Publication date: January 4, 2024Inventors: Pouya Ghalei, Cong Zheng, Shunlong Xiao, Manpreet Singh, Charles E Chang, Steve Chikin Lo
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Patent number: 11822658Abstract: A sample is analyzed to determine a set of events that should be selected for performing by a dynamic analyzer executing the sample in an instrumented, emulated environment. The set of selected events is performed. In some cases, at least one emulator detection resistance action is performed. A maliciousness verdict is determined for the sample based at least in part on one or more responses taken by the sample in response to the set of selected events being performed by the dynamic analyzer.Type: GrantFiled: November 21, 2022Date of Patent: November 21, 2023Assignee: Palo Alto Networks, Inc.Inventors: Cong Zheng, Wenjun Hu, Zhi Xu
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Publication number: 20230342452Abstract: Execution of an application in an application-level sandbox is disclosed. A request to launch an application is received by an operating system executing on a device. A determination is made that a stored copy of the application should be executed within an application-level sandbox. The stored copy of the application is executed in the application-level sandbox.Type: ApplicationFiled: May 12, 2023Publication date: October 26, 2023Inventors: Zhi Xu, Cong Zheng, Tongbo Luo, Wenjun Hu
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Patent number: 11757936Abstract: Techniques for providing a large scale high-interaction honeypot farm are disclosed. In some embodiments, a system/method/computer program product for providing a large scale high-interaction honeypot farm includes sending traffic detected at a sensor to a smart proxy for a honeypot farm that is executed in a honeypot cloud, wherein the traffic is forwarded attack traffic that is sent using a tunneling protocol, and wherein the honeypot farm includes a plurality of container images of distinct types of vulnerable services; selecting a matching type of vulnerable service from the plurality of container images of distinct types of vulnerable services based on a profile of the attack traffic; forwarding the traffic to an instance of the matching type of vulnerable service; and executing a security agent associated with the instance of the matching type of vulnerable service to identify a threat by monitoring behaviors and detecting anomalies or post exploitation activities.Type: GrantFiled: January 13, 2022Date of Patent: September 12, 2023Assignee: Palo Alto Networks, Inc.Inventors: Zihang Xiao, Cong Zheng, Jiangxia Liu
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Patent number: 11753937Abstract: The invention discloses an ultra-long tunnel sewage disposal, separation and drainage structure suitable for cold regions, comprising: a tunnel portal section drainage structure and a tunnel body section drainage structure and an out-tunnel clear water ditch, an out-tunnel deep-buried ditch, an out-tunnel sewage ditch and a clear water tank; the tunnel portal section drainage structure comprises a central ditch and a side sewage ditch A, the central ditch is deeply buried in the position, lower than the freezing depth, of a tunnel portal section of the main tunnel, and the side sewage ditches A are arranged on both sides of the tunnel portal section of the main tunnel; the tunnel body section drainage structure comprises a side clear water ditch and a side sewage ditch B, and the side clear water ditch and the side sewage ditch B are arranged on both sides of the tunnel body section of the main tunnel.Type: GrantFiled: June 18, 2020Date of Patent: September 12, 2023Assignee: CCCC Second Highway Consultants Co., Ltd.Inventors: Yong Cheng, Wenbo Peng, Kang Gao, Yilin Jian, Cong Zheng, Xiang Gao, Zidong Song, Xiaoxin Zou
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Patent number: 11757844Abstract: Techniques for providing a smart proxy for a large scale high-interaction honeypot farm are disclosed. In some embodiments, a system/method/computer program product for providing a smart proxy for a large scale high-interaction honeypot farm includes receiving tunneled traffic at a smart proxy from a sensor for a honeypot farm that is executed in a honeypot cloud, wherein the tunneled traffic is forwarded attack traffic, and wherein the honeypot farm includes a plurality of container images of distinct types of vulnerable services; selecting a matching type of vulnerable service from the plurality of container images of distinct types of vulnerable services based on a profile of the attack traffic; and forwarding the tunneled traffic to an instance of the matching type of vulnerable service.Type: GrantFiled: January 13, 2022Date of Patent: September 12, 2023Assignee: Palo Alto Networks, Inc.Inventors: Zihang Xiao, Cong Zheng, Jiangxia Liu
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Patent number: 11720666Abstract: Execution of an application in an application-level sandbox is disclosed. A request to launch an application is received by an operating system executing on a device. A determination is made that a stored copy of the application should be executed within an application-level sandbox. The stored copy of the application is executed in the application-level sandbox.Type: GrantFiled: October 21, 2021Date of Patent: August 8, 2023Assignee: Palo Alto Networks, Inc.Inventors: Zhi Xu, Cong Zheng, Tongbo Luo, Wenjun Hu
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Patent number: 11626803Abstract: A switching power converter is provided that adaptively changes the on-time period for an auxiliary switch transistor to locate a boundary between sufficient and insufficient energy.Type: GrantFiled: January 6, 2020Date of Patent: April 11, 2023Assignee: Dialog Semiconductor Inc.Inventors: Wenduo Liu, Cong Zheng, Xiaoyan Wang, Pengju Kong
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Patent number: 11620383Abstract: A sample is analyzed to determine a set of events that should be selected for performing by a dynamic analyzer executing the sample in an instrumented, emulated environment. In some cases, analyzing the sample includes extracting the sample's user interface layout into a tree hierarchy of user interface elements. The set of selected events is performed. In some cases, at least one emulator detection resistance action is performed. A maliciousness verdict is determined for the sample based at least in part on one or more responses taken by the sample in response to the set of selected events being performed by the dynamic analyzer.Type: GrantFiled: February 4, 2021Date of Patent: April 4, 2023Assignee: Palo Alto Networks, Inc.Inventors: Cong Zheng, Wenjun Hu, Zhi Xu
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Publication number: 20230078962Abstract: A sample is analyzed to determine a set of events that should be selected for performing by a dynamic analyzer executing the sample in an instrumented, emulated environment. The set of selected events is performed. In some cases, at least one emulator detection resistance action is performed. A maliciousness verdict is determined for the sample based at least in part on one or more responses taken by the sample in response to the set of selected events being performed by the dynamic analyzer.Type: ApplicationFiled: November 21, 2022Publication date: March 16, 2023Inventors: Cong Zheng, Wenjun Hu, Zhi Xu
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Patent number: 11604878Abstract: A virtualized storage for use in performing dynamic analysis on a sample is configured, at least in part by copying the sample to the virtualized storage. A virtual machine emulator is launched using a snapshot of a virtualized platform. The virtualized platform is previously configured to use the virtualized storage, and the snapshot is configured to use a placeholder file to occupy space for later use when installing the sample. A location of the copied sample in an image corresponding to the virtualized storage is determined. The copied sample is installed and dynamic analysis is performed on the sample.Type: GrantFiled: February 3, 2021Date of Patent: March 14, 2023Assignee: Palo Alto Networks, Inc.Inventors: Wenjun Hu, Cong Zheng, Zhi Xu
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Patent number: 11550916Abstract: A sample is received for analysis by a virtualized environment. A determination is made that the sample was compiled for a CPU architecture that is different from a host CPU architecture. The sample is executed in an emulated user space corresponding to the CPU architecture for which the sample was compiled. The emulated user space is provided by executing a user space emulation utility in a virtual machine that shares the host CPU architecture.Type: GrantFiled: June 21, 2021Date of Patent: January 10, 2023Assignee: Palo Alto Networks, Inc.Inventors: Zihang Xiao, Cong Zheng, ChienHua Lu
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Publication number: 20220316337Abstract: The invention discloses an ultra-long tunnel sewage disposal, separation and drainage structure suitable for cold regions, comprising: a tunnel portal section drainage structure and a tunnel body section drainage structure and an out-tunnel clear water ditch, an out-tunnel deep-buried ditch, an out-tunnel sewage ditch and a clear water tank; the tunnel portal section drainage structure comprises a central ditch and a side sewage ditch A, the central ditch is deeply buried in the position, lower than the freezing depth, of a tunnel portal section of the main tunnel, and the side sewage ditches A are arranged on both sides of the tunnel portal section of the main tunnel; the tunnel body section drainage structure comprises a side clear water ditch and a side sewage ditch B, and the side clear water ditch and the side sewage ditch B are arranged on both sides of the tunnel body section of the main tunnel.Type: ApplicationFiled: June 18, 2020Publication date: October 6, 2022Applicant: CCCC Second Highway Consultants Co., Ltd.Inventors: Yong Cheng, Wenbo Peng, Kang Gao, Yilin Jian, Cong Zheng, Xiang Gao, Zidong Song, Xiaoxin Zou