Abderrahman Essebbar

Title: Abderrahman Essebbar: Innovator in Speech Coding Technology

Introduction

Abderrahman Essebbar is a notable inventor based in Rabat, Morocco. He has made significant contributions to the field of speech coding technology. His innovative approach has led to the development of a unique patent that enhances the efficiency of speech coders.

Latest Patents

Abderrahman Essebbar holds a patent for a "Recursively Excited Linear Prediction Speech Coder." This invention focuses on the recursive calculation of excitation in a CELP-like speech coder. For a given bitrate and complexity, his recursive approach effectively lowers complexity while maintaining speech quality. The excitation signal is composed of at least three vector terms, each being a product of a codebook vector and an associated gain term. The first vector term is determined to represent a target excitation vector, while the remaining terms are recursively calculated to represent the difference between the target vector and the sum of previously determined terms. This innovative method showcases his expertise in optimizing speech coding.

Career Highlights

Abderrahman Essebbar is currently employed at Scansoft, Inc., where he continues to work on advancements in speech technology. His career is marked by a commitment to improving communication technologies through innovative solutions.

Collaborations

He has collaborated with notable colleagues such as Mohand Ferhaoul and Jean-Francois Rasaminjanahary. These partnerships have contributed to the development of cutting-edge technologies in the field.

Conclusion

Abderrahman Essebbar's contributions to speech coding technology exemplify his innovative spirit and dedication to enhancing communication methods. His work continues to influence the industry and pave the way for future advancements.