Patents by Inventor Kevin Zhou
Kevin Zhou 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: 11973772Abstract: Conventional email filtering services are not suitable for recognizing sophisticated malicious emails, and therefore may allow sophisticated malicious emails to reach inboxes by mistake. Introduced here are threat detection platforms designed to take an integrative approach to detecting security threats. For example, after receiving input indicative of an approval from an individual to access past email received by employees of an enterprise, a threat detection platform can download past emails to build a machine learning (ML) model that understands the norms of communication with internal contacts (e.g., other employees) and/or external contacts (e.g., vendors). By applying the ML model to incoming email, the threat detection platform can identify security threats in real time in a targeted manner.Type: GrantFiled: February 22, 2022Date of Patent: April 30, 2024Assignee: Abnormal Security CorporationInventors: Sanjay Jeyakumar, Jeshua Alexis Bratman, Dmitry Chechik, Abhijit Bagri, Evan Reiser, Sanny Xiao Lang Liao, Yu Zhou Lee, Carlos Daniel Gasperi, Kevin Lau, Kai Jiang, Su Li Debbie Tan, Jeremy Kao, Cheng-Lin Yeh
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Publication number: 20240132592Abstract: Embodiments provided herein, provide for variant IgG Fc polypeptides, dimeric molecules, pharmaceutical compositions, and methods that can be used to target at cells to modulate the activity of the same to treat disorders, such as autoimmune disorders or cancers.Type: ApplicationFiled: October 24, 2023Publication date: April 25, 2024Inventors: Yen-Lin Chen, Ryan Peckner, Nathan Higginson-Scott, Daniela Cipolletta, Yanfeng Zhou, Kevin Lewis Otipoby, Jyothsna Visweswaraiah
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Publication number: 20240137674Abstract: An optical links diagnostic system (LDS) and its operation within an optical circuit switch (OCS) for measurement and diagnosis of fiber-optic network fiber performance and quality is disclosed. The LDS can contain two photodetectors, a laser source, and be coupled to an OCS. Optical circulators can further be linked to the OCS. The LDS can be used both as an optical time domain reflectometer (OTDR) or as an optical return loss (ORL) meter and can automate the diagnosis of the fiber optical network fiber insertion loss and return loss.Type: ApplicationFiled: December 12, 2023Publication date: April 25, 2024Inventors: Jill Berger, Kevin Yasumura, Xiang Zhou, Pedram Z. Dashti, Ryohei Urata
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Publication number: 20240083192Abstract: The instant disclosure is directed to a heterogeneous fiber fluid reservoir for holding and delivering fluid. A reservoir may comprise a rod having a core component and a surrounding component. Each of the core component and the surrounding component may comprise fibers. The core component may have a first property, and the surrounding component may have a second property different from the first property, or the core component and the surrounding component may each have a different value or range of values for the same property. Alternatively, a reservoir may comprise a rod that includes fibers and has a cross-sectional diameter. At least one property of the rod may vary in value along the cross-sectional diameter of the rod. The property may include, for example, fiber bulk density, fiber diameter, fiber material, fiber morphology, fiber surface tension, capillary force, fluid absorption capacity, color, or combinations thereof.Type: ApplicationFiled: November 22, 2023Publication date: March 14, 2024Applicant: Porex Technologies CorporationInventors: David Bradley HARRIS, Kevin SPORRER, Janie WIERZBICKI, Ronald Eugene BILLUPS, Yelena ROGOVA, Thomas E. HARRIS, Qiang ZHOU, Timothy Allen MARTIN, Xingguo LI, Guoqiang MAO
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Patent number: 11929171Abstract: Methods to compute glycemia tests and applications thereof are described. Additional methods to compute risk of atherosclerotic cardiovascular disease and applications thereof are described. Generally, systems utilize analyte measurements to determine a glycemic status or cardiovascular disease risk, which can be used as a basis to treat individuals.Type: GrantFiled: October 18, 2019Date of Patent: March 12, 2024Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Sophia Miryam Schüssler-Fiorenza Rose, Kevin Contrepois, Wenyu Zhou, Samson Mataraso, Tejaswini Mishra, Michael Snyder, Kegan Moneghetti, Francois Haddad
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Publication number: 20240079784Abstract: An electronic device may be provided with an antenna having a resonating element and a light source module mounted to a flexible printed circuit and a metal cowling. The module may emit light through a rear housing wall. The printed circuit may be interposed between the metal cowling and a conductive support plate in the rear housing wall. The printed circuit may include a ground trace coupled to the resonating element. A dimpled pad may couple the ground trace to the support plate. Compressive foam may be used to exert a force against the flexible printed circuit that presses the dimpled pad against the conductive support plate. The ground trace and the dimpled pad may form a return path to ground for the resonating element. The dimpled pad may occupy less height within the device than other structures such as metal springs.Type: ApplicationFiled: August 30, 2023Publication date: March 7, 2024Inventors: Han Wang, Victor C. Lee, Jingni Zhong, Ming Chen, Bhaskara R. Rupakula, Yiren Wang, Yuan Tao, Christopher Q. Ma, Zhiheng Zhou, Sherry Cao, Kevin M. Froese, Hao Xu, Hongfei Hu, Mattia Pascolini
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Publication number: 20240023927Abstract: For three-dimensional segmentation from two-dimensional intracardiac echocardiography imaging, the three-dimension segmentation is output by a machine-learnt multi-task generator. Rather than the brute force approach of training the generator from 2D ICE images to output a 2D segmentation, the generator is trained from 3D information, such as a sparse ICE volume assembled from the 2D ICE images. Where sufficient ground truth data is not available, computed tomography or magnetic resonance data may be used as the ground truth for the sample sparse ICE volumes. The generator is trained to output both the 3D segmentation and a complete volume (i.e., more voxels represented than in the sparse ICE volume). The 3D segmentation may be further used to project to 2D as an input with an ICE image to another network trained to output a 2D segmentation for the ICE image. Display of the 3D segmentation and/or 2D segmentation may guide ablation of tissue in the patient.Type: ApplicationFiled: September 29, 2023Publication date: January 25, 2024Inventors: Gareth Funka-Lea, Haofu Liao, Shaohua Kevin Zhou, Yefeng Zheng, Yucheng Tang
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Patent number: 11806189Abstract: For three-dimensional segmentation from two-dimensional intracardiac echocardiography imaging, the three-dimension segmentation is output by a machine-learnt multi-task generator. Rather than the brute force approach of training the generator from 2D ICE images to output a 2D segmentation, the generator is trained from 3D information, such as a sparse ICE volume assembled from the 2D ICE images. Where sufficient ground truth data is not available, computed tomography or magnetic resonance data may be used as the ground truth for the sample sparse ICE volumes. The generator is trained to output both the 3D segmentation and a complete volume (i.e., more voxels represented than in the sparse ICE volume). The 3D segmentation may be further used to project to 2D as an input with an ICE image to another network trained to output a 2D segmentation for the ICE image. Display of the 3D segmentation and/or 2D segmentation may guide ablation of tissue in the patient.Type: GrantFiled: November 28, 2022Date of Patent: November 7, 2023Assignee: Siemens Medical Solutions USA, Inc.Inventors: Gareth Funka-Lea, Haofu Liao, Shaohua Kevin Zhou, Yefeng Zheng, Yucheng Tang
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Publication number: 20230255572Abstract: A tomographic 3D imaging system includes a conic-section mirror serving as the imaging objective, a sample holder positioned to hold a sample at a focus (fp) of the conic-section mirror, a light source directing light to the sample, and an array of camera sensors positioned above the conic-section mirror. In some cases, the array of camera sensors is positioned parallel to a directrix of the conic-section mirror. In some cases, the conic-section mirror is a parabolic mirror. In some cases, each camera sensor of the array of camera sensors is positioned facing the sample holder at an inclination angle dictated by a lateral position of the camera sensor according to ?(r)=2 tan?1(r/2fp), where r is the radial entry position across the parabolic mirror.Type: ApplicationFiled: February 16, 2023Publication date: August 17, 2023Inventors: Kevin ZHOU, Roarke HORSTMEYER
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Publication number: 20230146920Abstract: Introduced herein is a technique that reliably measures on-die noise of logic in a chip. The introduced technique places a noise measurement system in partitions of the chip that are expected to cause the most noise. The introduced technique utilizes a continuous free-running clock that feeds functional frequency to the noise measurement circuit throughout the noise measurement scan test. This allows the noise measurement circuit to measure the voltage noise of the logic during a shift phase, which was not possible in the conventional noise measurement method. Also, by being able to measure the voltage noise during a shift phase and hence in both phases of the scan test, the introduced technique can perform a more comprehensive noise measurement not only during ATE testing but as part of IST in the field.Type: ApplicationFiled: November 2, 2022Publication date: May 11, 2023Inventors: Bonita Bhaskaran, Nithin Valentine, Shantanu Sarangi, Mahmut Yilmaz, Suhas Satheesh, Charlie Hwang, Tezaswi Raja, Kevin Zhou, Sailendra Chadalavada, Kevin Ye, Seyed Nima Mozaffari Mojaveri, Kerwin Fu
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Publication number: 20230113154Abstract: For three-dimensional segmentation from two-dimensional intracardiac echocardiography imaging, the three-dimension segmentation is output by a machine-learnt multi-task generator. Rather than the brute force approach of training the generator from 2D ICE images to output a 2D segmentation, the generator is trained from 3D information, such as a sparse ICE volume assembled from the 2D ICE images. Where sufficient ground truth data is not available, computed tomography or magnetic resonance data may be used as the ground truth for the sample sparse ICE volumes. The generator is trained to output both the 3D segmentation and a complete volume (i.e., more voxels represented than in the sparse ICE volume). The 3D segmentation may be further used to project to 2D as an input with an ICE image to another network trained to output a 2D segmentation for the ICE image. Display of the 3D segmentation and/or 2D segmentation may guide ablation of tissue in the patient.Type: ApplicationFiled: November 28, 2022Publication date: April 13, 2023Inventors: Gareth Funka-Lea, Haofu Liao, Shaohua Kevin Zhou, Yefeng Zheng, Yucheng Tang
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Patent number: 11534136Abstract: For three-dimensional segmentation from two-dimensional intracardiac echocardiography imaging, the three-dimension segmentation is output by a machine-learnt multi-task generator. The machine-learnt multi-task generator is trained from 3D information, such as a sparse ICE volume assembled from the 2D ICE images. The machine-learnt multi-task generator is trained to output both the 3D segmentation and a complete volume. The 3D segmentation may be used to project to 2D as an input with an ICE image to another network trained to output a 2D segmentation for the ICE image. Display of the 3D segmentation and/or 2D segmentation may guide ablation of tissue in the patient.Type: GrantFiled: September 13, 2018Date of Patent: December 27, 2022Assignee: Siemens Medical Solutions USA, Inc.Inventors: Gareth Funka-Lea, Haofu Liao, Shaohua Kevin Zhou, Yefeng Zheng, Yucheng Tang
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Patent number: 11393229Abstract: Methods and systems for artificial intelligence based medical image segmentation are disclosed. In a method for autonomous artificial intelligence based medical image segmentation, a medical image of a patient is received. A current segmentation context is automatically determined based on the medical image and at least one segmentation algorithm is automatically selected from a plurality of segmentation algorithms based on the current segmentation context. A target anatomical structure is segmented in the medical image using the selected at least one segmentation algorithm.Type: GrantFiled: November 24, 2020Date of Patent: July 19, 2022Assignee: Siemens Healthcare GmbHInventors: Shaohua Kevin Zhou, Mingqing Chen, Hui Ding, Bogdan Georgescu, Mehmet Akif Gulsun, Tae Soo Kim, Atilla Peter Kiraly, Xiaoguang Lu, Jin-hyeong Park, Puneet Sharma, Shanhui Sun, Daguang Xu, Zhoubing Xu, Yefeng Zheng
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Publication number: 20220188996Abstract: A method of mesoscopic photogrammetry can be carried out using a set of images captured from a camera on a mobile computing device. Upon receiving the set of images, the method generates a composite image, which can include applying homographic rectification to warp all images of the set of images onto a common plane; applying a rectification model to undo perspective distortion in each image of the set of images; and applying an undistortion model for adjusting for camera imperfections of a camera that captured each image of the set of images. A height map is generated co-registered with the composite image, for example, by using an untrained CNN whose weights/parameters are optimized in order to optimize the height map. The height map and the composite image can be output for display.Type: ApplicationFiled: December 10, 2021Publication date: June 16, 2022Inventors: Kevin Zhou, Colin Cooke, Jaehee Park, Ruobing Qian, Roarke Horstmeyer, Joseph Izatt, Sina Farsiu
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Patent number: 11328412Abstract: Systems and methods are provided for performing medical imaging analysis. Input medical imaging data is received for performing a particular one of a plurality of medical imaging analyses. An output that provides a result of the particular medical imaging analysis on the input medical imaging data is generated using a neural network trained to perform the plurality of medical imaging analyses. The neural network is trained by learning one or more weights associated with the particular medical imaging analysis using one or more weights associated with a different one of the plurality of medical imaging analyses. The generated output is outputted for performing the particular medical imaging analysis.Type: GrantFiled: January 9, 2018Date of Patent: May 10, 2022Assignee: Siemens Healthcare GmbHInventors: Shaohua Kevin Zhou, Mingqing Chen, Daguang Xu, Zhoubing Xu, Shun Miao, Dong Yang, He Zhang
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Patent number: 11326870Abstract: Systems and methods for imaging based on multiple cross-sectional images acquired at different angles are disclosed. According to an aspect, multiple cross-sectional images of an object are acquired at different angles. The method also includes registering the acquired cross-sectional images. Further, the method includes reconstructing an enhanced resolution image of the object based on the registered images. As a result of registering the images, a distortion map is generated that is coregistered with the high-resolution image. The method also includes displaying an image of the object based on the enhanced resolution image and the distortion map.Type: GrantFiled: January 29, 2019Date of Patent: May 10, 2022Assignee: Duke UniversityInventors: Joseph Izatt, Ruobing Qian, Sina Farsiu, Kevin Zhou
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Patent number: 11311270Abstract: An anatomical structure is detected (110) in a volume of ultrasound data by identifying (150) the anatomical structure in another volume of ultrasound data and generating (155) an image of the anatomical structure and an anatomical landmark. A group of images are generated (130) of the original volume and compared (140) to the image of the other volume. An image of the group of images is selected (150) as including the anatomical structure based on the comparison.Type: GrantFiled: July 2, 2015Date of Patent: April 26, 2022Assignee: Siemens Healthcare GmbHInventors: Jin-hyeong Park, Michal Sofka, Shaohua Kevin Zhou
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Patent number: 11229377Abstract: A method of visualizing spinal nerves includes receiving a 3D image volume depicting a spinal cord and a plurality of spinal nerves. For each spinal nerve, a 2D spinal nerve image is generated by defining a surface within the 3D volume comprising the spinal nerve. The surface is curved such that it passes through the spinal cord while encompassing the spinal nerve. Then, the 2D spinal nerve images are generated based on voxels on the surface included in the 3D volume. A visualization of the 2D spinal images is presented in a graphical user interface that allows each 2D spinal image to be viewed simultaneously.Type: GrantFiled: July 12, 2019Date of Patent: January 25, 2022Assignee: Siemens Healthcare GmbHInventors: Atilla Peter Kiraly, David Liu, Shaohua Kevin Zhou, Dorin Comaniciu, Gunnar Krüger
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Patent number: 11210779Abstract: Systems and methods are provided for automatic detection and quantification for traumatic bleeding. Image data is acquired using a full body dual energy CT scanner. A machine-learned network detects one or more bleeding areas on a bleeding map from the dual energy CT scan image data. A visualization is generated from the bleeding map. The predicted bleeding areas are quantified, and a risk value is generated. The visualization and risk value are presented to an operator.Type: GrantFiled: September 7, 2018Date of Patent: December 28, 2021Assignee: Siemens Healthcare GmbHInventors: Zhoubing Xu, Sasa Grbic, Shaohua Kevin Zhou, Philipp Hölzer, Grzegorz Soza
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Patent number: 11185231Abstract: Intelligent multi-scale image parsing determines the optimal size of each observation by an artificial agent at a given point in time while searching for the anatomical landmark. The artificial agent begins searching image data with a coarse field-of-view and iteratively decreases the field-of-view to locate the anatomical landmark. After searching at a coarse field-of view, the artificial agent increases resolution to a finer field-of-view to analyze context and appearance factors to converge on the anatomical landmark. The artificial agent determines applicable context and appearance factors at each effective scale.Type: GrantFiled: March 25, 2020Date of Patent: November 30, 2021Assignee: Siemens Healthcare GmbHInventors: Bogdan Georgescu, Florin Cristian Ghesu, Yefeng Zheng, Dominik Neumann, Tommaso Mansi, Dorin Comaniciu, Wen Liu, Shaohua Kevin Zhou