Petrus C Sommen

Title: The Innovations of Petrus C Sommen

Introduction

Petrus C Sommen is a notable inventor based in Eindhoven, Netherlands. He has made significant contributions to the field of digital signal processing, particularly through his innovative patents. With a total of two patents to his name, Sommen has demonstrated a commitment to advancing technology in practical applications.

Latest Patents

Sommen's latest patents include the "Adaptive Discrete-Time Transversal Filter" and the "Frequency-Domain Block-Adaptive Digital Filter." The Adaptive Discrete-Time Transversal Filter is designed for use in echo cancellers, particularly for speech signals that can be modeled with an autoregressive process. This invention features a control circuit that adjusts the coefficients of a discrete-time transversal filter, utilizing an algorithm that matches the computational efficiency of the Least Mean Square (LMS) algorithm while achieving equal or superior convergence results compared to the Orthogonal Projection (OP) algorithm.

The Frequency-Domain Block-Adaptive Digital Filter (FDAF) is another significant innovation. This filter employs a finite impulse response of length N to filter time-domain input signals using the overlap-save method. It includes window means for modifying frequency-domain weighting factors derived from correlation products. Notably, this FDAF reduces the number of required 2N-point FFTs from five to three, while maintaining comparable convergence properties, thanks to a specially implemented time-domain window function.

Career Highlights

Sommen is associated with U.S. Philips Corporation, where he has contributed to various projects and innovations. His work has had a lasting impact on the field of digital signal processing, showcasing his expertise and dedication to technological advancement.

Collaborations

Throughout his career, Sommen has collaborated with notable colleagues, including Theodoor A Claasen and Petrus J Van Gerwen. These collaborations have further enriched his work and contributed to the development of innovative solutions in his field.

Conclusion

Petrus C Sommen's contributions to digital signal processing through his patents reflect his innovative spirit and technical expertise. His work continues to influence the industry and inspire future advancements in technology.