Company Filing History:
Years Active: 2008-2017
Title: Innovations by Yu-Sung Wu in VoIP Security
Introduction
Yu-Sung Wu is a notable inventor based in West Lafayette, IN (US), recognized for his contributions to the field of Voice over Internet Protocol (VoIP) security. With a total of six patents to his name, Wu has developed innovative methods to enhance the security of VoIP systems, addressing critical vulnerabilities in communication protocols.
Latest Patents
One of Wu's latest patents is focused on a signature-free intrusion detection system. This apparatus and method are designed to detect intrusions in VoIP systems without relying on an attack signature database. The invention is based on the observation that certain VoIP-related protocols, such as the Session Initiation Protocol (SIP), can be effectively represented by a finite-state machine (FSM) of compact size. Each session, node, or protocol combination is monitored by maintaining a finite-state machine, which flags any illegal state or state transition as a potential intrusion.
Another significant patent by Wu involves state machine profiling for VoIP calls. This method detects potentially improper call behavior, such as Spam over Internet Telephony (SPIT). The invention utilizes finite-state machines that represent the legal states and transitions of a communications protocol during a VoIP call. A library of FSM execution profiles associated with improper call behavior is maintained, generating alerts when there is a match between the behavior of a finite-state machine during a call and an execution profile in the library.
Career Highlights
Yu-Sung Wu is currently employed at Avaya Inc., a company known for its innovative communication solutions. His work at Avaya has allowed him to focus on enhancing the security of VoIP systems, making significant strides in the field.
Collaborations
Wu has collaborated with notable colleagues, including Sachin Garg and Navjot Singh, contributing to advancements in VoIP technology and security.
Conclusion
Yu-Sung Wu's innovative patents and contributions to VoIP security demonstrate his commitment to improving communication technologies. His work continues to influence the industry, ensuring safer and more reliable communication systems.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.