Jeffrey L Townsend

Title: The Innovations of Jeffrey L Townsend

Introduction

Jeffrey L Townsend is an accomplished inventor based in Columbia, MD (US). He has made significant contributions to the field of voice activity detection, showcasing his expertise through his innovative patent.

Latest Patents

One of Townsend's notable inventions is a voice activity detector. This device and method are designed to detect voice activity by processing a received signal. The process involves computing the absolute value of the signal, squaring it, and applying a low pass filter to the squared result. Further steps include computing the mean of the filtered signal, subtracting the mean from the filtered result, and padding the mean-subtracted result with zeros to form a value that is a power of two. The device then computes a DFFT of this power of two result, normalizes it, and classifies the output as speech or non-speech based on a feature vector comparison with known speech and non-speech vectors. This innovative approach includes components such as an absolute value squarer, a low pass filter, a mean subtractor, a zero padder, a DFFT, a normalizer, and a classifier. Townsend holds 1 patent for this invention.

Career Highlights

Jeffrey L Townsend is currently employed by the National Security Agency, where he applies his skills in developing advanced technologies. His work has contributed to enhancing communication systems and improving voice detection capabilities.

Collaborations

Throughout his career, Townsend has collaborated with notable colleagues, including Douglas J Nelson and David C Smith. These partnerships have fostered innovation and the development of cutting-edge technologies in their field.

Conclusion

Jeffrey L Townsend's contributions to voice activity detection exemplify his innovative spirit and dedication to advancing technology. His work continues to impact the field significantly, showcasing the importance of invention in modern communication systems.