Search Results - xiang-yang+liu

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Recognizing Keystrokes Using Wi-Fi Signals

Executive SummaryWhen a user moves their fingers to type, it creates a disturbance in the Wi-Fi signal that is unique and can be determined by analyzing the CSI-Waveform from the Wi-fi card. Our technology is able to detect and identify small movements of the hand by using a commercial Wi-Fi router and laptop. This technology can be used to determine...
Published: 6/8/2021   |   Inventor(s): Xiang-Yang Liu, Kamran Ali, Wei Wang
Keywords(s):   Category(s): Computer Hardware, Control Systems

An Automated Cheating Detection System for Online Exams

Executive SummaryThe growth of online courses offered for credit heavily depends on innovations in the online proctoring industry to provide accurate, yet flexible remote examination. Current software-based online proctoring systems do not sufficiently monitor and inhibit cheating behavior in high stake online exams as they only rely on the narrow...
Published: 2/17/2023   |   Inventor(s): Stephen Hsu, Xiaoming Liu, Xiang-Yang Liu
Keywords(s):   Category(s): Computer Software, Telecommunications and Internet, Test and Measurement

Collision Detection and Bitwise Arbitration for Multicarrier Wireless Networks

IntroductionThe two main tasks that occur during wireless-communication data transmissions are the transmission of the data, and the resolution of conflicts caused by data collisions. Current data-transmission technology can only handle one data packet at a time. Data collisions occur when two or more data packets attempt to simultaneously use the same...
Published: 2/17/2023   |   Inventor(s): Li Xiao, Xi Yang, Pei Huang
Keywords(s):   Category(s): Computer Hardware, Telecommunications and Internet

A High-Speed Grammar Aware Application Protocol Parsing Algorithm for Networking and Security Devices

IntroductionThere is an increasing desire to create content aware networks that can improve data delivery by classifying and controlling messages based on content, application, and individual subscribers. There is also a need to improve network security via content-based monitoring and filtering. Building content aware networks requires both advanced...
Published: 2/17/2023   |   Inventor(s): Xiang-Yang Liu, Chad Meiners, Eric Torng
Keywords(s): Firewall, Internet Security, Protocol Parser, Router, Unified Threat Management Category(s): Computer Software, Communication