Stefan Hangakansson

Title: The Innovations of Stefan Hangakansson

Introduction

Stefan Hangakansson is a notable inventor based in Sollentuna, Sweden. He has made significant contributions to the field of digital signal processing, particularly in echo cancellation technologies. His innovative work has led to the development of a patented technology that enhances computational efficiency in digital signal processors.

Latest Patents

Stefan Hangakansson holds a patent for an "Adaptive Dual Filter Echo Cancellation." This invention involves a digital signal processor designed for echo cancellation computations. The processor includes parallel multiplier/adders, an input signal sample memory, and multiple accumulators for temporarily storing computation results. This design minimizes the need for external data memory, reducing data transfer bottlenecks and significantly increasing computational efficiency. The adaptive filter coefficient updates can be computed and copied much faster, resulting in a digital signal processor with significantly less computational complexity compared to prior models.

Career Highlights

Stefan is associated with Telefonaktiebolaget LM Ericsson (publ), a leading telecommunications company. His work at Ericsson has allowed him to apply his innovative ideas in a practical setting, contributing to advancements in communication technologies. His expertise in digital signal processing has positioned him as a valuable asset in the field.

Collaborations

Stefan has collaborated with notable colleagues, including Claes L. Hammar and Tonu Trump. These collaborations have fostered an environment of innovation and have led to further advancements in their respective fields.

Conclusion

Stefan Hangakansson's contributions to digital signal processing through his patented technology exemplify the impact of innovation in telecommunications. His work continues to influence the efficiency of digital signal processors, showcasing the importance of inventive minds in advancing technology.