Andrew J Wheen

Title: The Innovations of Andrew J Wheen

Introduction

Andrew J Wheen is a notable inventor based in Maidenhead, GB. He is recognized for his contributions to the field of digital signal processing, particularly in echo cancellation technology. His innovative work has led to the development of a significant patent that addresses challenges in communication systems.

Latest Patents

Wheen holds a patent for an "Echo Canceller," which is a digital adaptive echo canceller designed to eliminate echo signals caused by trans-hybrid losses in two-wire to four-wire converters. This invention comprises first and second adaptive filters that generate synthetic echo signals. The transfer control logic compares difference signals relative to the synthetic echo signals and real echo signals. If the synthetic echo signal from the first filter is closer to the real echo signal, the coefficients of the first filter are transferred to the second filter. This process ensures that the synthetic signal mixed with transmitted speech signals is updated as necessary.

Career Highlights

Andrew J Wheen has made significant strides in his career, particularly through his work at Plessey Overseas Limited. His expertise in digital signal processing has positioned him as a key figure in the development of advanced communication technologies. Wheen's innovative approach has contributed to enhancing the quality of voice communication systems.

Collaborations

Throughout his career, Wheen has collaborated with notable colleagues, including Graham Beniston and Nigel P Dyer. These partnerships have fostered an environment of innovation and have led to the successful development of various technologies in the field.

Conclusion

Andrew J Wheen's contributions to the field of digital signal processing, particularly through his patent for an echo canceller, highlight his innovative spirit and dedication to improving communication technologies. His work continues to influence advancements in the industry.