Company Filing History:
Years Active: 2009-2017
Title: Wassim Matragi: Innovator in Network Security and Quality Analysis
Introduction
Wassim Matragi is a prominent inventor based in North Andover, MA (US), known for his contributions to network security and speech quality analysis. With a total of seven patents to his name, he has made significant advancements in the field of Voice-Over-IP (VoIP) technology.
Latest Patents
Matragi's latest patents include a groundbreaking invention titled "Real-time network attack detection and mitigation infrastructure." This invention features systems and methods for detecting and mitigating network attacks specifically in VoIP networks. The server in this system is configured to receive information related to a mitigation action for a call, which includes a complexity level for administering an audio challenge-response test and an identification of the call. The server generates a routing label based on the call's identification and a script that defines variables storing identifications of altered sound files for the audio challenge-response test. Each altered sound file is randomly selected by the server, subject to constraints associated with the complexity level. The server is also designed to transmit the script to a guardian module and the routing label to a gateway.
Another notable patent is focused on "Methods and apparatus for signal quality analysis." This invention performs a non-intrusive objective speech quality assessment on degraded speech signals. The methods are particularly effective in systems where random and bursty packet losses may occur. In one embodiment, received packetized speech is analyzed to determine an overall final signal quality score. A limited set of trained neural networks assesses different signal features, each determining a signal feature quality score. A trained joint quality score determination module then calculates a joint quality score based on these feature quality scores. The final quality score is adjusted based on estimated packet loss information obtained from examining the speech signal and network-level statistics.
Career Highlights
Matragi is currently employed at Sonus Networks, Inc., where he continues to innovate and develop solutions that enhance network security and speech quality. His work has positioned him as a key figure in the industry, contributing to advancements that benefit various communication systems.
Collaborations
Throughout his career, Matragi has collaborated with notable colleagues, including David Lapsley and Miri Mansur. These collaborations have fostered an environment of innovation and creativity, leading to the development of impactful technologies.
Conclusion
Wassim Matragi's contributions to network security and speech
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