Patents by Inventor YUXUN ZHOU
YUXUN 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: 12340295Abstract: An Internet of Things (IoT) device can include a switch module configured to control a power supply for at least one powered device, a WiFi module configured to perform wireless communication and occupancy activity sensing, and a processor configured to determine human activity recognition WiFi measurements from the WiFi module based on the occupancy activity sensing and generate corresponding commands for the switch module based on the determined human activity recognition WiFi measurements.Type: GrantFiled: August 19, 2019Date of Patent: June 24, 2025Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Costas Spanos, Han Zou, Yuxun Zhou
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Patent number: 12058213Abstract: A system can include multiple WiFi-enabled commercial off the shelf (COTS) Internet of Things (IoT) devices disposed within an environment and configured to be a transmitter (TX) or a received (RX) to send or receive data over a WiFi radio frequency communication link. A server can be configured to receive and parse the CSI data transmitted from the RX, store the CSI data with a corresponding human identity label collected for training, train a human identification classifier using a Convex Clustered Concurrent Shapelet Learning (C3SL) method, and estimate an identification of a user based on the CSI data and the C3SL method.Type: GrantFiled: August 19, 2019Date of Patent: August 6, 2024Assignees: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, NANYANG TECHNOLOGICAL UNIVERSITYInventors: Han Zou, Costas Spanos, Yuxun Zhou, Jianfei Yang, Lihua Xie
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Patent number: 12035166Abstract: A mobile device and user association system can include wireless routers to execute software for capturing data including received signal strength (RSS) values and media access controller (MAC) addresses for a number of mobile devices (MDs) from existing wireless fidelity (WiFi) traffic. The system can also include a server to receive the RSS values and MAC addresses of the MDs to estimate a location of each MD and generate historical location data of each MD, identify and filter out temporary MDs, classify each non-temporary MDs as either a static device (SD) or a mobile phone (MP), and associate a user with each SD and MP.Type: GrantFiled: May 23, 2019Date of Patent: July 9, 2024Assignees: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, NANYANG TECHNOLOGICAL UNIVERSITYInventors: Han Zou, Costas Spanos, Yuxun Zhou, Jianfei Yang
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Patent number: 11894880Abstract: An automatic wireless fine-grained ratio map construction and adaptation system may include a Gaussian process regression (GPR) model constructed with real wireless received signal strength (RSS) measurements collected in a free space to provide coarse RSS estimation in a constrained space, and a generative adversarial network (GAN) to provide fine-grained RSS estimation in the constrained space by using an output of GPR as an input for a generator of GAN, modeling the irregular RSS distributions in complex indoor environments. The system may generate realistic RSS data in the constrained space that has not been manually site-surveyed.Type: GrantFiled: December 16, 2019Date of Patent: February 6, 2024Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Han Zou, Costas J. Spanos, Yuxun Zhou
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Publication number: 20220124154Abstract: A system can include multiple WiFi-enabled commercial off the shelf (COTS) Internet of Things (IoT) devices disposed within an environment and configured to be a transmitter (TX) or a received (RX) to send or receive data over a WiFi radio frequency communication link. A server can be configured to receive and parse the CSI data transmitted from the RX, store the CSI data with a corresponding human identity label collected for training, train a human identification classifier using a Convex Clustered Concurrent Shapelet Learning (C3SL) method, and estimate an identification of a user based on the CSI data and the C3SL method.Type: ApplicationFiled: August 19, 2019Publication date: April 21, 2022Inventors: HAN ZOU, COSTAS SPANOS, YUXUN ZHOU, JIANFEI YANG, LIHUA XIE
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Publication number: 20220077944Abstract: An automatic wireless fine-grained ratio map construction and adaptation system may include a Gaussian process regression (GPR) model constructed with real wireless received signal strength (RSS) measurements collected in a free space to provide coarse RSS estimation in a constrained space, and a generative adversarial network (GAN) to provide fine-grained RSS estimation in the constrained space by using an output of GPR as an input for a generator of GAN, modeling the irregular RSS distributions in complex indoor environments. The system may generate realistic RSS data in the constrained space that has not been manually site-surveyed.Type: ApplicationFiled: December 16, 2019Publication date: March 10, 2022Inventors: Han Zou, Costas J. Spanos, Yuxun Zhou
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Publication number: 20210279549Abstract: An Internet of Things (IoT) device can include a switch module configured to control a power supply for at least one powered device, a WiFi module configured to perform wireless communication and occupancy activity sensing, and a processor configured to determine human activity recognition WiFi measurements from the WiFi module based on the occupancy activity sensing and generate corresponding commands for the switch module based on the determined human activity recognition WiFi measurements.Type: ApplicationFiled: August 19, 2019Publication date: September 9, 2021Inventors: Costas Spanos, Han Zou, Yuxun Zhou
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Publication number: 20210136617Abstract: A mobile device and user association system can include wireless routers to execute software for capturing data including received signal strength (RSS) values and media access controller (MAC) addresses for a number of mobile devices (MDs) from existing wireless fidelity (WiFi) traffic. The system can also include a server to receive the RSS values and MAC addresses of the MDs to estimate a location of each MD and generate historical location data of each MD, identify and filter out temporary MDs, classify each non-temporary MDs as either a static device (SD) or a mobile phone (MP), and associate a user with each SD and MP.Type: ApplicationFiled: May 23, 2019Publication date: May 6, 2021Inventors: HAN ZOU, COSTAS SPANOS, YUXUN ZHOU, JIANFEI YANG
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Patent number: 10313469Abstract: A method, apparatus and system for processing User Generated Content are provided. The method comprises sending a request for obtaining UGC information to a network device; receiving UGC information returned by the network device in response to the request for obtaining UGC information; determining whether UGC in a local cache is the latest UGC based on the UGC information; and downloading UGC from the network device if UGC in the local cache is not the latest UGC.Type: GrantFiled: July 17, 2015Date of Patent: June 4, 2019Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Feng Feng, Yuxun Zhou
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Patent number: 9592442Abstract: Communication methods, systems, servers, and client devices in a user-interactive system are provided herein. In an exemplary method, a communication interface can be started via a first user-interactive client by a first user to communicate with one or more communication tools via a communication backend server. The first user-interactive client can obtain and display a plurality of second user IDs of second users. The first user-interactive client can receive one or more second user IDs selected by the first user to add to a communication group. The first user-interactive client can send to the communication backend server a message for joining the communication group containing the one or more second user IDs. After receiving an accepting message from the communication backend server, during a user-interactive operation, the first user-interactive client can communicate with a second client corresponding to a user ID contained in the accepting message.Type: GrantFiled: May 16, 2014Date of Patent: March 14, 2017Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Feng Feng, Yuxun Zhou, Jinglin Ma, Chen Wang, Zhidan Ma, Yuanxue Zhao, Lanqi Song, Ansong Yao
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Patent number: 9363274Abstract: A method and system for broadcasting pictures across multiple user terminals are provided. The method includes generating a user signature based on information associated with the picture, and receiving a request to broadcast the picture, the request including the user signature. The method further includes broadcasting the picture if the user signature is valid. The method and system may improve a user's online experience by eliminating unauthorized broadcasts from unauthorized users.Type: GrantFiled: February 21, 2014Date of Patent: June 7, 2016Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Feng Feng, Yuxun Zhou
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Publication number: 20150326686Abstract: A method, apparatus and system for processing User Generated Content are provided. The method comprises sending a request for obtaining UGC information to a network device; receiving UGC information returned by the network device in response to the request for obtaining UGC information; determining whether UGC in a local cache is the latest UGC based on the UGC information; and downloading UGC from the network device if UGC in the local cache is not the latest UGC.Type: ApplicationFiled: July 17, 2015Publication date: November 12, 2015Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Feng Feng, Yuxun Zhou
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Publication number: 20140309030Abstract: Communication methods, systems, servers, and client devices in a user-interactive system are provided herein. In an exemplary method, a communication interface can be started via a first user-interactive client by a first user to communicate with one or more communication tools via a communication backend server. The first user-interactive client can obtain and display a plurality of second user IDs of second users. The first user-interactive client can receive one or more second user IDs selected by the first user to add to a communication group. The first user-interactive client can send to the communication backend server a message for joining the communication group containing the one or more second user IDs. After receiving an accepting message from the communication backend server, during a user-interactive operation, the first user-interactive client can communicate with a second client corresponding to a user ID contained in the accepting message.Type: ApplicationFiled: May 16, 2014Publication date: October 16, 2014Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Feng FENG, YUXUN ZHOU, JINGLIN MA, CHEN WANG, ZHIDAN MA, YUANXUE ZHAO, LANQI SONG, ANSONG YAO
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Publication number: 20140298017Abstract: A method and system for broadcasting pictures across multiple user terminals are provided. The method includes generating a user signature based on information associated with the picture, and receiving a request to broadcast the picture, the request including the user signature. The method further includes broadcasting the picture if the user signature is valid. The method and system may improve a user's online experience by eliminating unauthorized broadcasts from unauthorized users.Type: ApplicationFiled: February 21, 2014Publication date: October 2, 2014Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: FENG PING, YUXUN ZHOU