Lijing Ding

Title: Innovations of Lijing Ding in Voice Quality Assessment

Introduction

Lijing Ding is an accomplished inventor based in Nepean, Canada. She has made significant contributions to the field of voice quality assessment, particularly in Voice over Internet Protocol (VoIP) technology. With a total of 2 patents, her work focuses on improving the quality of voice communication over digital networks.

Latest Patents

Lijing Ding's latest patents include a method and apparatus for non-intrusive single-ended voice quality assessment in VoIP. This innovative apparatus, method, and computer program assess VoIP speech quality using access to degraded signals. Different types of impairment have varying effects on speech quality. The preferred embodiments of her invention address up to four different types of impairment that affect VoIP signal quality: packet loss, speech clipping in time, noise, and echo. An overall assessment algorithm factors in degradation due to various impairment factors to generate an overall speech quality assessment score or value.

Career Highlights

Lijing Ding is currently employed at Nortel Networks Corporation, where she continues to develop her expertise in voice quality assessment technologies. Her work has been instrumental in advancing the understanding of how different impairments affect VoIP communication.

Collaborations

Throughout her career, Lijing has collaborated with notable colleagues, including Mohamed Samy El-Hennawey and Rafik Alphonse Goubran. These collaborations have further enriched her research and development efforts in the field.

Conclusion

Lijing Ding's contributions to voice quality assessment in VoIP technology highlight her innovative spirit and dedication to improving communication systems. Her patents reflect a deep understanding of the challenges faced in digital voice communication, making her a valuable asset in the field.